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Area Code:240
Primary City:Mount Rainier, MD
240 is a phone number area code located in Mount Rainier, MD.
Please check general information and active prefixes in this area code.
Active Prefixes in Area Code 240
Prefix: 240-200-####
City: Mount Rainier, MD
County: Prince Georges
Company: Bandwidth.com Clec
Prefix: 240-201-####
City: Ridge, MD
County: Saint Marys
Company: Peerless Network Of The District Of Columbia, Dc
Prefix: 240-203-####
City: Hagerstown, MD
County: Washington
Company: Sprint Spectrum L.p.
Prefix: 240-204-####
City: Bethesda, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-205-####
City: Cabin John, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-206-####
City: Glenn Dale, MD
County: Prince Georges
Company: Xo Maryland
Prefix: 240-207-####
City: Damascus, MD
County: Montgomery
Company: Cavalier East LLC
Prefix: 240-208-####
City: La Plata, MD
County: Charles
Company: Peerless Network Of The District Of Columbia, Dc
Prefix: 240-209-####
City: Indian Head, MD
County: Charles
Company: Peerless Network Of The District Of Columbia, Dc
Prefix: 240-210-####
City: Waldorf, MD
County: Charles
Company: New Cingular Wireless PCS - DC
Prefix: 240-212-####
City: Oakland, MD
County: Garrett
Company: Core Communications
Prefix: 240-213-####
City: Waldorf, MD
County: Charles
Company: Peerless Network Of The District Of Columbia, Dc
Prefix: 240-214-####
City: Mechanicsville, MD
County: Saint Marys
Company: Peerless Network Of The District Of Columbia, Dc
Prefix: 240-215-####
City: Frederick, MD
County: Frederick
Company: Telcove Operations
Prefix: 240-216-####
City: Waldorf, MD
County: Charles
Company: Sprint Spectrum L.p.
Prefix: 240-217-####
City: Hagerstown, MD
County: Washington
Company: Omnipoint Communications Cap Operations
Prefix: 240-218-####
City: Nanjemoy, MD
County: Charles
Company: Peerless Network Of The District Of Columbia, Dc
Prefix: 240-220-####
City: Poolesville, MD
County: Montgomery
Company: Peerless Network Of Maryland
Prefix: 240-221-####
City: Rockville, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-222-####
City: Waldorf, MD
County: Charles
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-223-####
City: Mount Rainier, MD
County: Prince Georges
Company: Allegiance Telecom
Prefix: 240-224-####
City: Gaithersburg, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-225-####
City: Frederick, MD
County: Frederick
Company: Core Communications
Prefix: 240-228-####
City: Laurel, MD
County: Prince Georges
Company: Verizon Maryland
Prefix: 240-229-####
City: Waldorf, MD
County: Charles
Company: Broadwing Communications. LLC
Prefix: 240-230-####
City: Hughesville, MD
County: Charles
Company: Global Crossing Local Services-md
Prefix: 240-231-####
City: Hagerstown, MD
County: Washington
Company: Core Communications
Prefix: 240-232-####
City: Mount Rainier, MD
County: Prince Georges
Company: Broadwing Communications. LLC
Prefix: 240-233-####
City: Newburg, MD
County: Charles
Company: Teleport Communications America - DC
Prefix: 240-234-####
City: Mount Rainier, MD
County: Prince Georges
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-235-####
City: Bethesda, MD
County: Montgomery
Company: Paetec Communications
Prefix: 240-236-####
City: Frederick, MD
County: Frederick
Company: Verizon Maryland
Prefix: 240-237-####
City: Callaway, MD
County: Saint Marys
Company: Teleport Communications America - DC
Prefix: 240-238-####
City: Rockville, MD
County: Montgomery
Company: Paetec Communications
Prefix: 240-239-####
City: Leonardtown, MD
County: Saint Marys
Company: Core Communications
Prefix: 240-241-####
City: Chevy Chase, MD
County: Montgomery
Company: Starpower Communications
Prefix: 240-242-####
City: Kensington, MD
County: Montgomery
Company: Starpower Communications
Prefix: 240-243-####
City: Gaithersburg, MD
County: Montgomery
Company: Allegiance Telecom
Prefix: 240-244-####
City: Mount Rainier, MD
County: Prince Georges
Company: Starpower Communications
Prefix: 240-245-####
City: Glenn Dale, MD
County: Prince Georges
Company: Starpower Communications
Prefix: 240-246-####
City: Gaithersburg, MD
County: Montgomery
Company: Starpower Communications
Prefix: 240-247-####
City: Mount Rainier, MD
County: Prince Georges
Company: Allegiance Telecom
Prefix: 240-248-####
City: Ridge, MD
County: Saint Marys
Company: Peerless Network Of Maryland
Prefix: 240-249-####
City: Mechanicsville, MD
County: Saint Marys
Company: Teleport Communications America - DC
Prefix: 240-250-####
City: Brandywine, MD
County: Prince Georges
Company: Peerless Network Of Maryland
Prefix: 240-251-####
City: Highfield, MD
County: Washington
Company: Core Communications
Prefix: 240-252-####
City: Gaithersburg, MD
County: Montgomery
Company: Level 3 Communications
Prefix: 240-253-####
City: Mount Rainier, MD
County: Prince Georges
Company: Global Crossing Local Services-md
Prefix: 240-260-####
City: Mount Rainier, MD
County: Prince Georges
Company: Allegiance Telecom
Prefix: 240-262-####
City: Callaway, MD
County: Saint Marys
Company: Sprint Spectrum L.p.
Prefix: 240-263-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-264-####
City: Beltsville, MD
County: Prince Georges
Company: Verizon Maryland
Prefix: 240-265-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-273-####
City: Mount Rainier, MD
County: Prince Georges
Company: Broadwing Communications. LLC
Prefix: 240-274-####
City: Bethesda, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-275-####
City: Grantsville, MD
County: Garrett
Company: Core Communications
Prefix: 240-276-####
City: Rockville, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-277-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-278-####
City: Laurel, MD
County: Prince Georges
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-279-####
City: Waldorf, MD
County: Charles
Company: Core Communications
Prefix: 240-280-####
City: Laurel, MD
County: Prince Georges
Company: Comcast Phone Of Northern Maryland
Prefix: 240-281-####
City: Bethesda, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-282-####
City: Mechanicsville, MD
County: Saint Marys
Company: Peerless Network Of Maryland
Prefix: 240-283-####
City: Kensington, MD
County: Montgomery
Company: Paetec Communications
Prefix: 240-284-####
City: Frostburg, MD
County: Allegany
Company: Level 3 Communications
Prefix: 240-285-####
City: Frederick, MD
County: Frederick
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-299-####
City: Waldorf, MD
County: Charles
Company: Sprint Spectrum L.p.
Prefix: 240-300-####
City: Waldorf, MD
County: Charles
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-303-####
City: Clinton, MD
County: Prince Georges
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-304-####
City: Mount Rainier, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-305-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-306-####
City: Gaithersburg, MD
County: Montgomery
Company: Allegiance Telecom
Prefix: 240-307-####
City: Emmitsburg, MD
County: Frederick
Company: AT&T Local
Prefix: 240-308-####
City: Damascus, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-309-####
City: Leonardtown, MD
County: Saint Marys
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-310-####
City: Hagerstown, MD
County: Washington
Company: Uscoc Of Cumberland DBA United States Cel Md
Prefix: 240-312-####
City: Capitol Heights, MD
County: Prince Georges
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-313-####
City: Hagerstown, MD
County: Washington
Company: Verizon Maryland
Prefix: 240-254-####
City: Hughesville, MD
County: Charles
Company: Teleport Communications America - DC
Prefix: 240-255-####
City: Poolesville, MD
County: Montgomery
Company: Peerless Network Of Maryland
Prefix: 240-256-####
City: Leonardtown, MD
County: Saint Marys
Company: Teleport Communications America - DC
Prefix: 240-257-####
City: Nanjemoy, MD
County: Charles
Company: Teleport Communications America - DC
Prefix: 240-258-####
City: Ridge, MD
County: Saint Marys
Company: Teleport Communications America - DC
Prefix: 240-266-####
City: Mount Rainier, MD
County: Prince Georges
Company: Peerless Network Of Maryland
Prefix: 240-268-####
City: Rockville, MD
County: Montgomery
Company: Allegiance Telecom
Prefix: 240-269-####
City: Mount Rainier, MD
County: Prince Georges
Company: Peerless Network Of Maryland
Prefix: 240-270-####
City: Waldorf, MD
County: Charles
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-271-####
City: Bethesda, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-272-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-286-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-287-####
City: Hancock, MD
County: Washington
Company: Core Communications
Prefix: 240-288-####
City: Thurmont, MD
County: Frederick
Company: Comcast Phone Of Northern Maryland
Prefix: 240-289-####
City: Oxon Hill, MD
County: Prince Georges
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-290-####
City: Mount Rainier, MD
County: Prince Georges
Company: Allegiance Telecom
Prefix: 240-291-####
City: Hagerstown, MD
County: Washington
Company: New Cingular Wireless PCS - DC
Prefix: 240-292-####
City: Kensington, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-314-####
City: Rockville, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-315-####
City: Frederick, MD
County: Frederick
Company: Verizon Maryland
Prefix: 240-316-####
City: Chevy Chase, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-317-####
City: Callaway, MD
County: Saint Marys
Company: Starpower Communications
Prefix: 240-318-####
City: Clinton, MD
County: Prince Georges
Company: Verizon Maryland
Prefix: 240-319-####
City: Columbia, MD
County: Howard
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-320-####
City: Waldorf, MD
County: Charles
Company: Cavalier East LLC
Prefix: 240-321-####
City: Oakland, MD
County: Garrett
Company: Uscoc Of Cumberland DBA United States Cel Md
Prefix: 240-322-####
City: Mccoole, MD
County: Allegany
Company: Core Communications
Prefix: 240-323-####
City: Emmitsburg, MD
County: Frederick
Company: Core Communications
Prefix: 240-324-####
City: Clarksville, MD
County: Howard
Company: Ymax Communications Corp.
Prefix: 240-325-####
City: Damascus, MD
County: Montgomery
Company: Core Communications
Prefix: 240-326-####
City: Upper Marlboro, MD
County: Prince Georges
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-327-####
City: Gaithersburg, MD
County: Montgomery
Company: Core Communications
Prefix: 240-328-####
City: Rockville, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-329-####
City: Hagerstown, MD
County: Washington
Company: Level 3 Communications
Prefix: 240-330-####
City: Cabin John, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-331-####
City: Mount Rainier, MD
County: Prince Georges
Company: Peerless Network Of Maryland
Prefix: 240-332-####
City: Newburg, MD
County: Charles
Company: Peerless Network Of Maryland
Prefix: 240-333-####
City: Mount Rainier, MD
County: Prince Georges
Company: Cavalier East LLC
Prefix: 240-334-####
City: Mount Rainier, MD
County: Prince Georges
Company: Global Crossing Local Services-md
Prefix: 240-335-####
City: Glenn Dale, MD
County: Prince Georges
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-336-####
City: Bethesda, MD
County: Montgomery
Company: Core Communications
Prefix: 240-337-####
City: Mount Rainier, MD
County: Prince Georges
Company: Peerless Network Of Maryland
Prefix: 240-338-####
City: Silver Spring, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-339-####
City: Upper Marlboro, MD
County: Prince Georges
Company: Cavalier East LLC
Prefix: 240-340-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-293-####
City: Mount Rainier, MD
County: Prince Georges
Company: Starpower Communications
Prefix: 240-294-####
City: Laurel, MD
County: Prince Georges
Company: Xo Maryland
Prefix: 240-295-####
City: Laurel, MD
County: Prince Georges
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-296-####
City: Hyattsville, MD
County: Prince Georges
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-297-####
City: College Park, MD
County: Prince Georges
Company: Level 3 Communications
Prefix: 240-298-####
City: Leonardtown, MD
County: Saint Marys
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-341-####
City: Adamstown, MD
County: Frederick
Company: Mci Worldcom Communications
Prefix: 240-342-####
City: Sandy Spring, MD
County: Montgomery
Company: Starpower Communications
Prefix: 240-343-####
City: Hancock, MD
County: Washington
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-344-####
City: Frederick, MD
County: Frederick
Company: New Cingular Wireless PCS - DC
Prefix: 240-345-####
City: Sandy Spring, MD
County: Montgomery
Company: Level 3 Communications
Prefix: 240-346-####
City: Waldorf, MD
County: Charles
Company: Sprint Spectrum L.p.
Prefix: 240-347-####
City: Hagerstown, MD
County: Washington
Company: Bandwidth.com Clec
Prefix: 240-348-####
City: Oxon Hill, MD
County: Prince Georges
Company: Level 3 Communications
Prefix: 240-349-####
City: La Plata, MD
County: Charles
Company: Global Crossing Local Services-md
Prefix: 240-350-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-351-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-352-####
City: La Plata, MD
County: Charles
Company: Peerless Network Of Maryland
Prefix: 240-353-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-354-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-355-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-356-####
City: Frederick, MD
County: Frederick
Company: Level 3 Communications
Prefix: 240-357-####
City: Frederick, MD
County: Frederick
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-358-####
City: Damascus, MD
County: Montgomery
Company: Peerless Network Of Maryland
Prefix: 240-359-####
City: Indian Head, MD
County: Charles
Company: Peerless Network Of Maryland
Prefix: 240-360-####
City: Laurel, MD
County: Prince Georges
Company: Omnipoint Communications Cap Operations
Prefix: 240-361-####
City: Gaithersburg, MD
County: Montgomery
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-362-####
City: Cumberland, MD
County: Allegany
Company: Verizon Maryland
Prefix: 240-363-####
City: Kensington, MD
County: Montgomery
Company: Global Naps South
Prefix: 240-364-####
City: Gaithersburg, MD
County: Montgomery
Company: Cavalier East LLC
Prefix: 240-365-####
City: Damascus, MD
County: Montgomery
Company: Baltimore-washington Telephone (bwt)
Prefix: 240-366-####
City: Williamsport, MD
County: Washington
Company: AT&T Local
Prefix: 240-367-####
City: Frederick, MD
County: Frederick
Company: Sprint Spectrum L.p.
Prefix: 240-368-####
City: Waldorf, MD
County: Charles
Company: Peerless Network Of Maryland
Prefix: 240-369-####
City: Mount Airy, MD
County: Carroll
Company: Core Communications
Prefix: 240-370-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-371-####
City: Mount Rainier, MD
County: Prince Georges
Company: Peerless Network Of Maryland
Prefix: 240-372-####
City: Gaithersburg, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-373-####
City: Odenton, MD
County: Anne Arundel
Company: Verizon Maryland
Prefix: 240-374-####
City: Laurel, MD
County: Prince Georges
Company: Global Crossing Local Services-md
Prefix: 240-375-####
City: Capitol Heights, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-376-####
City: Hughesville, MD
County: Charles
Company: Peerless Network Of Maryland
Prefix: 240-377-####
City: Indian Head, MD
County: Charles
Company: Global Crossing Local Services-md
Prefix: 240-378-####
City: Cumberland, MD
County: Allegany
Company: Core Communications
Prefix: 240-379-####
City: Frederick, MD
County: Frederick
Company: Verizon Maryland
Prefix: 240-380-####
City: Cabin John, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-381-####
City: Silver Spring, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-382-####
City: Hagerstown, MD
County: Washington
Company: Teleport Communications America
Prefix: 240-383-####
City: Chevy Chase, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-384-####
City: Callaway, MD
County: Saint Marys
Company: Peerless Network Of Maryland
Prefix: 240-385-####
City: Myersville, MD
County: Frederick
Company: Verizon Maryland
Prefix: 240-386-####
City: Gaithersburg, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-387-####
City: Chevy Chase, MD
County: Montgomery
Company: Cavalier East LLC
Prefix: 240-388-####
City: Gaithersburg, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-389-####
City: Sandy Spring, MD
County: Montgomery
Company: Atx Telecommunications Services, Ltd
Prefix: 240-390-####
City: Sandy Spring, MD
County: Montgomery
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-391-####
City: Mount Rainier, MD
County: Prince Georges
Company: Global Crossing Local Services-md
Prefix: 240-392-####
City: Oxon Hill, MD
County: Prince Georges
Company: Starpower Communications
Prefix: 240-393-####
City: Cabin John, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-394-####
City: Mount Airy, MD
County: Carroll
Company: New Cingular Wireless PCS - DC
Prefix: 240-395-####
City: Bethesda, MD
County: Montgomery
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-396-####
City: Mount Rainier, MD
County: Prince Georges
Company: Global Crossing Local Services-md
Prefix: 240-397-####
City: Frederick, MD
County: Frederick
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-398-####
City: Cabin John, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-399-####
City: Chevy Chase, MD
County: Montgomery
Company: Xo Maryland
Prefix: 240-400-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-401-####
City: Rockville, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-402-####
City: College Park, MD
County: Prince Georges
Company: Mci Worldcom Communications
Prefix: 240-403-####
City: Rockville, MD
County: Montgomery
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-404-####
City: Gaithersburg, MD
County: Montgomery
Company: Xo Maryland
Prefix: 240-405-####
City: Frederick, MD
County: Frederick
Company: Us Lec Of Maryland
Prefix: 240-406-####
City: Rockville, MD
County: Montgomery
Company: Leap Wireless Intl DBA Cricket Comm
Prefix: 240-407-####
City: Mount Rainier, MD
County: Prince Georges
Company: Global Crossing Local Services-md
Prefix: 240-408-####
City: Rockville, MD
County: Montgomery
Company: Leap Wireless Intl DBA Cricket Comm
Prefix: 240-409-####
City: Frederick, MD
County: Frederick
Company: New Cingular Wireless PCS - DC
Prefix: 240-412-####
City: Waldorf, MD
County: Charles
Company: Sprint Spectrum L.p.
Prefix: 240-413-####
City: Hyattsville, MD
County: Prince Georges
Company: Omnipoint Communications Cap Operations
Prefix: 240-414-####
City: Mount Rainier, MD
County: Prince Georges
Company: Peerless Network Of Maryland
Prefix: 240-415-####
City: Frederick, MD
County: Frederick
Company: Ymax Communications Corp.
Prefix: 240-416-####
City: Waldorf, MD
County: Charles
Company: New Cingular Wireless PCS - DC
Prefix: 240-417-####
City: Capitol Heights, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-418-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-419-####
City: Waldorf, MD
County: Charles
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-420-####
City: Hagerstown, MD
County: Washington
Company: Verizon Maryland
Prefix: 240-421-####
City: Rockville, MD
County: Montgomery
Company: Omnipoint Communications Cap Operations
Prefix: 240-422-####
City: Frederick, MD
County: Frederick
Company: Omnipoint Communications Cap Operations
Prefix: 240-423-####
City: Silver Spring, MD
County: Montgomery
Company: Omnipoint Communications Cap Operations
Prefix: 240-424-####
City: Mount Rainier, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-425-####
City: Cabin John, MD
County: Montgomery
Company: Dslnet Communications Va
Prefix: 240-426-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-427-####
City: Waldorf, MD
County: Charles
Company: Xo Maryland
Prefix: 240-428-####
City: Rockville, MD
County: Montgomery
Company: Bandwidth.com Clec
Prefix: 240-429-####
City: Silver Spring, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-430-####
City: Kensington, MD
County: Montgomery
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-431-####
City: Tall Timbers, MD
County: Saint Marys
Company: Sprint Spectrum L.p.
Prefix: 240-432-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-433-####
City: Silver Spring, MD
County: Montgomery
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-434-####
City: Leonardtown, MD
County: Saint Marys
Company: Broadwing Communications. LLC
Prefix: 240-435-####
City: Waldorf, MD
County: Charles
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-436-####
City: Ijamsville, MD
County: Frederick
Company: Telcove Operations
Prefix: 240-437-####
City: Sandy Spring, MD
County: Montgomery
Company: Xo Maryland
Prefix: 240-438-####
City: Silver Spring, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-439-####
City: Frederick, MD
County: Frederick
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-440-####
City: Frederick, MD
County: Frederick
Company: Leap Wireless Intl DBA Cricket Comm
Prefix: 240-441-####
City: Oxon Hill, MD
County: Prince Georges
Company: Omnipoint Communications Cap Operations
Prefix: 240-442-####
City: Oakland, MD
County: Garrett
Company: Verizon Maryland
Prefix: 240-444-####
City: Laurel, MD
County: Prince Georges
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-445-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-446-####
City: Frederick, MD
County: Frederick
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-447-####
City: Rockville, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-448-####
City: Waldorf, MD
County: Charles
Company: Sprint Spectrum L.p.
Prefix: 240-449-####
City: Gaithersburg, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-450-####
City: Silver Spring, MD
County: Montgomery
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-452-####
City: Hagerstown, MD
County: Washington
Company: Lumos Networks Inc. - VA
Prefix: 240-453-####
City: Rockville, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-454-####
City: Gaithersburg, MD
County: Montgomery
Company: Paetec Communications
Prefix: 240-455-####
City: Oxon Hill, MD
County: Prince Georges
Company: Paetec Communications
Prefix: 240-456-####
City: Laurel, MD
County: Prince Georges
Company: Verizon Maryland
Prefix: 240-457-####
City: Frederick, MD
County: Frederick
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-458-####
City: Waldorf, MD
County: Charles
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-459-####
City: Laurel, MD
County: Prince Georges
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-460-####
City: Silver Spring, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-461-####
City: Silver Spring, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-462-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-463-####
City: Silver Spring, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-464-####
City: Chevy Chase, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-465-####
City: Mount Rainier, MD
County: Prince Georges
Company: Peerless Network Of Maryland
Prefix: 240-466-####
City: Mechanicsville, MD
County: Saint Marys
Company: New Cingular Wireless PCS - DC
Prefix: 240-467-####
City: Oxon Hill, MD
County: Prince Georges
Company: Comcast Phone Of Northern Maryland
Prefix: 240-468-####
City: Mount Rainier, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-469-####
City: Hagerstown, MD
County: Washington
Company: Sprint Spectrum L.p.
Prefix: 240-470-####
City: Laurel, MD
County: Prince Georges
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-477-####
City: Gaithersburg, MD
County: Montgomery
Company: Lightwave Communications
Prefix: 240-478-####
City: Cabin John, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-479-####
City: Oxon Hill, MD
County: Prince Georges
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-480-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-481-####
City: Silver Spring, MD
County: Montgomery
Company: Omnipoint Communications Cap Operations
Prefix: 240-482-####
City: Cabin John, MD
County: Montgomery
Company: Us Lec Of Maryland
Prefix: 240-483-####
City: Oxon Hill, MD
County: Prince Georges
Company: Comcast Phone Of Northern Maryland
Prefix: 240-485-####
City: Cabin John, MD
County: Montgomery
Company: Us Lec Of Maryland
Prefix: 240-486-####
City: Glenn Dale, MD
County: Prince Georges
Company: Omnipoint Communications Cap Operations
Prefix: 240-487-####
City: Hyattsville, MD
County: Prince Georges
Company: Us Lec Of Maryland
Prefix: 240-488-####
City: Oakland, MD
County: Garrett
Company: Shentel Communications
Prefix: 240-489-####
City: Poolesville, MD
County: Montgomery
Company: Xo Maryland
Prefix: 240-490-####
City: Middletown, MD
County: Frederick
Company: Omnipoint Communications Cap Operations
Prefix: 240-491-####
City: Mount Rainier, MD
County: Prince Georges
Company: Global Crossing Local Services-md
Prefix: 240-492-####
City: Capitol Heights, MD
County: Prince Georges
Company: Us Lec Of Maryland
Prefix: 240-493-####
City: Oxon Hill, MD
County: Prince Georges
Company: Us Lec Of Maryland
Prefix: 240-494-####
City: Mount Rainier, MD
County: Prince Georges
Company: Cavalier East LLC
Prefix: 240-495-####
City: Mount Rainier, MD
County: Prince Georges
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-497-####
City: Chevy Chase, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-498-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-499-####
City: Cabin John, MD
County: Montgomery
Company: Us Lec Of Maryland
Prefix: 240-505-####
City: Silver Spring, MD
County: Montgomery
Company: Omnipoint Communications Cap Operations
Prefix: 240-506-####
City: Rockville, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-507-####
City: Cabin John, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-508-####
City: Capitol Heights, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-509-####
City: Crofton, MD
County: Anne Arundel
Company: Bandwidth.com Clec
Prefix: 240-471-####
City: Silver Spring, MD
County: Montgomery
Company: Global Crossing Local Services-md
Prefix: 240-472-####
City: Silver Spring, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-473-####
City: College Park, MD
County: Prince Georges
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-475-####
City: Silver Spring, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-476-####
City: Silver Spring, MD
County: Montgomery
Company: Omnipoint Communications Cap Operations
Prefix: 240-500-####
City: Hagerstown, MD
County: Washington
Company: Us Lec Of Maryland
Prefix: 240-501-####
City: Silver Spring, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-502-####
City: Silver Spring, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-503-####
City: Newburg, MD
County: Charles
Company: Peerless Network Of Maryland
Prefix: 240-504-####
City: Silver Spring, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-510-####
City: Upper Marlboro, MD
County: Prince Georges
Company: Xo Maryland
Prefix: 240-512-####
City: College Park, MD
County: Prince Georges
Company: Core Communications
Prefix: 240-513-####
City: Hagerstown, MD
County: Washington
Company: Sprint Spectrum L.p.
Prefix: 240-514-####
City: Cabin John, MD
County: Montgomery
Company: Us Lec Of Maryland
Prefix: 240-515-####
City: Bethesda, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-516-####
City: Silver Spring, MD
County: Montgomery
Company: Us Lec Of Maryland
Prefix: 240-518-####
City: Waldorf, MD
County: Charles
Company: Sprint Spectrum L.p.
Prefix: 240-519-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-520-####
City: Hagerstown, MD
County: Washington
Company: Sprint Spectrum L.p.
Prefix: 240-522-####
City: Cumberland, MD
County: Allegany
Company: Sprint Spectrum L.p.
Prefix: 240-523-####
City: La Plata, MD
County: Charles
Company: Xo Maryland
Prefix: 240-524-####
City: Laurel, MD
County: Prince Georges
Company: Peerless Network Of Maryland
Prefix: 240-525-####
City: Upper Marlboro, MD
County: Prince Georges
Company: Peerless Network Of Maryland
Prefix: 240-526-####
City: Leonardtown, MD
County: Saint Marys
Company: Peerless Network Of Maryland
Prefix: 240-527-####
City: Hagerstown, MD
County: Washington
Company: Verizon Maryland
Prefix: 240-528-####
City: Hughesville, MD
County: Charles
Company: Broadwing Communications. LLC
Prefix: 240-529-####
City: Frederick, MD
County: Frederick
Company: Verizon Maryland
Prefix: 240-530-####
City: Waldorf, MD
County: Charles
Company: Local Access LLC
Prefix: 240-532-####
City: Oxon Hill, MD
County: Prince Georges
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-533-####
City: Mount Rainier, MD
County: Prince Georges
Company: Teleport Communications America - DC
Prefix: 240-535-####
City: Silver Spring, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-536-####
City: Sandy Spring, MD
County: Montgomery
Company: Peerless Network Of Maryland
Prefix: 240-538-####
City: Leonardtown, MD
County: Saint Marys
Company: Xo Maryland
Prefix: 240-539-####
City: Mount Rainier, MD
County: Prince Georges
Company: Peerless Network Of Maryland
Prefix: 240-541-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-542-####
City: College Park, MD
County: Prince Georges
Company: Us Lec Of Maryland
Prefix: 240-543-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-544-####
City: Glenn Dale, MD
County: Prince Georges
Company: Us Lec Of Maryland
Prefix: 240-545-####
City: Upper Marlboro, MD
County: Prince Georges
Company: Us Lec Of Maryland
Prefix: 240-546-####
City: Clinton, MD
County: Prince Georges
Company: Us Lec Of Maryland
Prefix: 240-547-####
City: Laurel, MD
County: Prince Georges
Company: Level 3 Communications
Prefix: 240-548-####
City: Mount Rainier, MD
County: Prince Georges
Company: Allegiance Telecom
Prefix: 240-550-####
City: Rockville, MD
County: Montgomery
Company: Leap Wireless Intl DBA Cricket Comm
Prefix: 240-551-####
City: Rockville, MD
County: Montgomery
Company: Leap Wireless Intl DBA Cricket Comm
Prefix: 240-552-####
City: Rockville, MD
County: Montgomery
Company: Leap Wireless Intl DBA Cricket Comm
Prefix: 240-553-####
City: Mount Rainier, MD
County: Prince Georges
Company: Allegiance Telecom
Prefix: 240-554-####
City: Laurel, MD
County: Prince Georges
Company: Allegiance Telecom
Prefix: 240-556-####
City: Glenn Dale, MD
County: Prince Georges
Company: Paetec Communications
Prefix: 240-558-####
City: Kensington, MD
County: Montgomery
Company: Cavalier Telephone Mid-atlantic
Prefix: 240-559-####
City: Sandy Spring, MD
County: Montgomery
Company: Allegiance Telecom
Prefix: 240-560-####
City: Chevy Chase, MD
County: Montgomery
Company: Xo Maryland
Prefix: 240-561-####
City: Leonardtown, MD
County: Saint Marys
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-565-####
City: Laurel, MD
County: Prince Georges
Company: Omnipoint Communications Cap Operations
Prefix: 240-566-####
City: Frederick, MD
County: Frederick
Company: Verizon Maryland
Prefix: 240-567-####
City: Rockville, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-568-####
City: Laurel, MD
County: Prince Georges
Company: Verizon Maryland
Prefix: 240-573-####
City: Upper Marlboro, MD
County: Prince Georges
Company: Global Crossing Local Services-md
Prefix: 240-575-####
City: Frederick, MD
County: Frederick
Company: Level 3 Communications
Prefix: 240-577-####
City: Leonardtown, MD
County: Saint Marys
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-578-####
City: Frederick, MD
County: Frederick
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-580-####
City: Cumberland, MD
County: Allegany
Company: Sprint Spectrum L.p.
Prefix: 240-581-####
City: Laurel, MD
County: Prince Georges
Company: Paetec Communications - DC
Prefix: 240-582-####
City: Hyattsville, MD
County: Prince Georges
Company: Verizon Maryland
Prefix: 240-583-####
City: Beltsville, MD
County: Prince Georges
Company: Verizon Maryland
Prefix: 240-585-####
City: Waldorf, MD
County: Charles
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-586-####
City: Frederick, MD
County: Frederick
Company: Verizon Maryland
Prefix: 240-587-####
City: Leonardtown, MD
County: Saint Marys
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-593-####
City: Laurel, MD
County: Prince Georges
Company: Omnipoint Communications Cap Operations
Prefix: 240-595-####
City: Chevy Chase, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-597-####
City: Gaithersburg, MD
County: Montgomery
Company: Peerless Network Of Maryland
Prefix: 240-599-####
City: Rockville, MD
County: Montgomery
Company: Broadwing Communications. LLC
Prefix: 240-600-####
City: Mount Rainier, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-601-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-602-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-603-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-604-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-605-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-606-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-607-####
City: Waldorf, MD
County: Charles
Company: Global Crossing Local Services-md
Prefix: 240-608-####
City: Frederick, MD
County: Frederick
Company: 365 Wireless
Prefix: 240-617-####
City:
County:
Company: Shentel Communications
Prefix: 240-619-####
City: Chevy Chase, MD
County: Montgomery
Company: Mci Worldcom Communications
Prefix: 240-620-####
City: Rockville, MD
County: Montgomery
Company: Mci Worldcom Communications
Prefix: 240-621-####
City: Kensington, MD
County: Montgomery
Company: Mci Worldcom Communications
Prefix: 240-624-####
City: Greenbelt, MD
County: Prince Georges
Company: Verizon Maryland
Prefix: 240-625-####
City: Hagerstown, MD
County: Washington
Company: Sprint Spectrum L.p.
Prefix: 240-626-####
City: Frederick, MD
County: Frederick
Company: Sprint Spectrum L.p.
Prefix: 240-627-####
City: Mount Rainier, MD
County: Prince Georges
Company: Global Crossing Local Services-md
Prefix: 240-629-####
City: Frederick, MD
County: Frederick
Company: Verizon Maryland
Prefix: 240-630-####
City: Mount Rainier, MD
County: Prince Georges
Company: Bandwidth.com Clec
Prefix: 240-631-####
City: Gaithersburg, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-632-####
City: Gaithersburg, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-612-####
City: Mount Rainier, MD
County: Prince Georges
Company: Tw Telecom Of Maryland LLC
Prefix: 240-613-####
City: Hyattsville, MD
County: Prince Georges
Company: Us Lec Of Maryland
Prefix: 240-614-####
City: Rockville, MD
County: Montgomery
Company: Metro PCS
Prefix: 240-615-####
City: Hyattsville, MD
County: Prince Georges
Company: Metro PCS
Prefix: 240-616-####
City: College Park, MD
County: Prince Georges
Company: Mci Worldcom Communications
Prefix: 240-638-####
City: Mount Rainier, MD
County: Prince Georges
Company: Broadwing Communications. LLC
Prefix: 240-640-####
City: Waldorf, MD
County: Charles
Company: Leap Wireless Intl DBA Cricket Comm
Prefix: 240-643-####
City: Silver Spring, MD
County: Montgomery
Company: Omnipoint Communications Cap Operations
Prefix: 240-644-####
City: Chevy Chase, MD
County: Montgomery
Company: Xo Maryland
Prefix: 240-645-####
City: Chevy Chase, MD
County: Montgomery
Company: Xo Maryland
Prefix: 240-646-####
City: Laurel, MD
County: Prince Georges
Company: Cavalier East LLC
Prefix: 240-650-####
City: Cabin John, MD
County: Montgomery
Company: Broadvox-clec - DC
Prefix: 240-651-####
City: Frederick, MD
County: Frederick
Company: Halo Wireless Services
Prefix: 240-652-####
City: Mechanicsville, MD
County: Saint Marys
Company: Xo Maryland
Prefix: 240-654-####
City: Gaithersburg, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-662-####
City: Silver Spring, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-667-####
City: Mount Rainier, MD
County: Prince Georges
Company: Global Crossing Local Services-md
Prefix: 240-668-####
City: Damascus, MD
County: Montgomery
Company: Starpower Communications
Prefix: 240-669-####
City: Kensington, MD
County: Montgomery
Company: Comcast Phone Of Northern Maryland
Prefix: 240-670-####
City: Mount Rainier, MD
County: Prince Georges
Company: Local Access LLC
Prefix: 240-671-####
City: Mount Rainier, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-672-####
City: Rockville, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-674-####
City: Frederick, MD
County: Frederick
Company: Sprint Spectrum L.p.
Prefix: 240-675-####
City: Myersville, MD
County: Frederick
Company: New Cingular Wireless PCS - DC
Prefix: 240-676-####
City: Silver Spring, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-678-####
City: Silver Spring, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-682-####
City: Waldorf, MD
County: Charles
Company: Starpower Communications
Prefix: 240-683-####
City: Gaithersburg, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-684-####
City: Greenbelt, MD
County: Prince Georges
Company: Verizon Maryland
Prefix: 240-685-####
City: Brandywine, MD
County: Prince Georges
Company: Global Crossing Local Services-md
Prefix: 240-686-####
City: Gaithersburg, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-687-####
City: Silver Spring, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-688-####
City: Silver Spring, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-691-####
City: Mount Rainier, MD
County: Prince Georges
Company: Global Crossing Local Services-md
Prefix: 240-694-####
City: Rockville, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-695-####
City: Temple Hills, MD
County: Prince Georges
Company: Verizon Maryland
Prefix: 240-696-####
City: Hyattsville, MD
County: Prince Georges
Company: Level 3 Communications
Prefix: 240-699-####
City: Adamstown, MD
County: Frederick
Company: Verizon Maryland
Prefix: 240-701-####
City: Silver Spring, MD
County: Montgomery
Company: Leap Wireless Intl DBA Cricket Comm
Prefix: 240-704-####
City: Mount Rainier, MD
County: Prince Georges
Company: Leap Wireless Intl DBA Cricket Comm
Prefix: 240-705-####
City: Chevy Chase, MD
County: Montgomery
Company: Leap Wireless Intl DBA Cricket Comm
Prefix: 240-706-####
City: Chevy Chase, MD
County: Montgomery
Company: Leap Wireless Intl DBA Cricket Comm
Prefix: 240-707-####
City: Hagerstown, MD
County: Washington
Company: New Cingular Wireless PCS - DC
Prefix: 240-708-####
City: Columbia, MD
County: Howard
Company: Level 3 Communications
Prefix: 240-712-####
City: Columbia, MD
County: Howard
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-713-####
City: Laurel, MD
County: Prince Georges
Company: Peerless Network Of Maryland
Prefix: 240-715-####
City: Rockville, MD
County: Montgomery
Company: Global Crossing Local Services-md
Prefix: 240-716-####
City: Mount Rainier, MD
County: Prince Georges
Company: Omnipoint Communications Cap Operations
Prefix: 240-718-####
City: Callaway, MD
County: Saint Marys
Company: Xo Maryland
Prefix: 240-720-####
City: Gaithersburg, MD
County: Montgomery
Company: Global Crossing Local Services-md
Prefix: 240-722-####
City: Sandy Spring, MD
County: Montgomery
Company: Global Crossing Local Services-md
Prefix: 240-723-####
City: Silver Spring, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-724-####
City: Mount Rainier, MD
County: Prince Georges
Company: Cavalier East LLC
Prefix: 240-725-####
City: Lexington Park, MD
County: Saint Marys
Company: Verizon Maryland
Prefix: 240-727-####
City: Cumberland, MD
County: Allegany
Company: New Cingular Wireless PCS - DC
Prefix: 240-731-####
City: Rockville, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-734-####
City: Hagerstown, MD
County: Washington
Company: Bandwidth.com Clec
Prefix: 240-737-####
City: Mount Rainier, MD
County: Prince Georges
Company: Cavalier East LLC
Prefix: 240-743-####
City: Oxon Hill, MD
County: Prince Georges
Company: Local Access LLC
Prefix: 240-744-####
City: Mount Rainier, MD
County: Prince Georges
Company: Broadwing Communications. LLC
Prefix: 240-745-####
City: Damascus, MD
County: Montgomery
Company: Xo Maryland
Prefix: 240-747-####
City: Mount Rainier, MD
County: Prince Georges
Company: Cavalier East LLC
Prefix: 240-750-####
City: Gaithersburg, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-751-####
City: Gaithersburg, MD
County: Montgomery
Company: Telcove Operations
Prefix: 240-752-####
City: Bethesda, MD
County: Montgomery
Company: Telcove Operations
Prefix: 240-753-####
City: Rockville, MD
County: Montgomery
Company: Telcove Operations
Prefix: 240-754-####
City: Waldorf, MD
County: Charles
Company: Level 3 Communications
Prefix: 240-755-####
City: Laurel, MD
County: Prince Georges
Company: Comcast Phone Of Northern Maryland
Prefix: 240-757-####
City: Mount Rainier, MD
County: Prince Georges
Company: Peerless Network Of Maryland
Prefix: 240-762-####
City: Mount Rainier, MD
County: Prince Georges
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-764-####
City: Chevy Chase, MD
County: Montgomery
Company: Xo Maryland
Prefix: 240-765-####
City: Chevy Chase, MD
County: Montgomery
Company: Xo Maryland
Prefix: 240-766-####
City: Chevy Chase, MD
County: Montgomery
Company: Xo Maryland
Prefix: 240-767-####
City: Capitol Heights, MD
County: Prince Georges
Company: Cavalier East LLC
Prefix: 240-770-####
City: Oxon Hill, MD
County: Prince Georges
Company: Comcast Phone Of Northern Maryland
Prefix: 240-772-####
City: Frederick, MD
County: Frederick
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-773-####
City: Rockville, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-776-####
City: La Plata, MD
County: Charles
Company: Broadwing Communications. LLC
Prefix: 240-777-####
City: Rockville, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-778-####
City: Chevy Chase, MD
County: Montgomery
Company: Xo Maryland
Prefix: 240-779-####
City: Sandy Spring, MD
County: Montgomery
Company: Cavalier East LLC
Prefix: 240-780-####
City: Gaithersburg, MD
County: Montgomery
Company: Broadwing Communications. LLC
Prefix: 240-782-####
City: Damascus, MD
County: Montgomery
Company: Global Crossing Local Services-md
Prefix: 240-783-####
City: Bethesda, MD
County: Montgomery
Company: Mte DBA Mte Paging Network
Prefix: 240-784-####
City: Myersville, MD
County: Frederick
Company: Omnipoint Communications Cap Operations
Prefix: 240-786-####
City: Laurel, MD
County: Prince Georges
Company: Broadwing Communications. LLC
Prefix: 240-787-####
City: Brandywine, MD
County: Prince Georges
Company: Broadwing Communications. LLC
Prefix: 240-788-####
City: Oxon Hill, MD
County: Prince Georges
Company: Broadwing Communications. LLC
Prefix: 240-790-####
City: Mount Rainier, MD
County: Prince Georges
Company: Broadwing Communications. LLC
Prefix: 240-793-####
City: Gaithersburg, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-794-####
City: Callaway, MD
County: Saint Marys
Company: Broadwing Communications. LLC
Prefix: 240-800-####
City: Chevy Chase, MD
County: Montgomery
Company: Core Communications
Prefix: 240-801-####
City: Gaithersburg, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-802-####
City: Bethesda, MD
County: Montgomery
Company: 365 Wireless
Prefix: 240-803-####
City: Cumberland, MD
County: Allegany
Company: New Cingular Wireless PCS - DC
Prefix: 240-804-####
City: Newburg, MD
County: Charles
Company: Xo Maryland
Prefix: 240-812-####
City: Poolesville, MD
County: Montgomery
Company: Global Crossing Local Services-md
Prefix: 240-813-####
City: Gaithersburg, MD
County: Montgomery
Company: Atx Telecommunications Services, Ltd
Prefix: 240-818-####
City: Smithsburg, MD
County: Washington
Company: Verizon Maryland
Prefix: 240-821-####
City: Silver Spring, MD
County: Montgomery
Company: Lightwave Communications
Prefix: 240-823-####
City: Brandywine, MD
County: Prince Georges
Company: Xo Maryland
Prefix: 240-826-####
City: Rockville, MD
County: Montgomery
Company: Verizon Maryland
Prefix: 240-832-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-833-####
City: Chevy Chase, MD
County: Montgomery
Company: Xo Maryland
Prefix: 240-837-####
City: Hughesville, MD
County: Charles
Company: Xo Maryland
Prefix: 240-838-####
City: Oxon Hill, MD
County: Prince Georges
Company: Omnipoint Communications Cap Operations
Prefix: 240-839-####
City: Silver Spring, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-841-####
City: Laurel, MD
County: Prince Georges
Company: Allegiance Telecom
Prefix: 240-842-####
City: Glenn Dale, MD
County: Prince Georges
Company: Allegiance Telecom
Prefix: 240-843-####
City: College Park, MD
County: Prince Georges
Company: Allegiance Telecom
Prefix: 240-844-####
City: Ridge, MD
County: Saint Marys
Company: Xo Maryland
Prefix: 240-845-####
City: Chevy Chase, MD
County: Montgomery
Company: Xo Maryland
Prefix: 240-846-####
City: Clinton, MD
County: Prince Georges
Company: Xo Maryland
Prefix: 240-848-####
City: Gaithersburg, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-855-####
City: Cabin John, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-857-####
City: Mount Rainier, MD
County: Prince Georges
Company: Tw Telecom Of Maryland LLC
Prefix: 240-863-####
City: Laurel, MD
County: Prince Georges
Company: Tw Telecom Of Maryland LLC
Prefix: 240-864-####
City: Rockville, MD
County: Montgomery
Company: Cavalier East LLC
Prefix: 240-865-####
City: Baltimore, MD
County: Anne Arundel
Company: Level 3 Communications
Prefix: 240-868-####
City: Mount Rainier, MD
County: Prince Georges
Company: Cavalier East LLC
Prefix: 240-876-####
City: Bethesda, MD
County: Montgomery
Company: Sprint Spectrum L.p.
Prefix: 240-880-####
City: Chevy Chase, MD
County: Montgomery
Company: Broadwing Communications. LLC
Prefix: 240-882-####
City: Capitol Heights, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-883-####
City: Sandy Spring, MD
County: Montgomery
Company: Broadwing Communications. LLC
Prefix: 240-888-####
City: Rockville, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-892-####
City: Upper Marlboro, MD
County: Prince Georges
Company: Broadwing Communications. LLC
Prefix: 240-893-####
City: Silver Spring, MD
County: Montgomery
Company: New Cingular Wireless PCS - DC
Prefix: 240-895-####
City: Lexington Park, MD
County: Saint Marys
Company: Verizon Maryland
Prefix: 240-897-####
City: Mount Rainier, MD
County: Prince Georges
Company: Broadwing Communications. LLC
Prefix: 240-898-####
City: Mount Rainier, MD
County: Prince Georges
Company: Broadwing Communications. LLC
Prefix: 240-899-####
City: Bethesda, MD
County: Montgomery
Company: Omnipoint Communications Cap Operations
Prefix: 240-901-####
City:
County:
Company: Centurylink Communications LLC
Prefix: 240-903-####
City: Indian Head, MD
County: Charles
Company: Comcast Phone Of Northern Maryland
Prefix: 240-912-####
City: Gaithersburg, MD
County: Montgomery
Company: Us Lec Of Maryland
Prefix: 240-920-####
City: Cumberland, MD
County: Allegany
Company: Level 3 Communications
Prefix: 240-925-####
City: Leonardtown, MD
County: Saint Marys
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-929-####
City: Mount Rainier, MD
County: Prince Georges
Company: Cavalier East LLC
Prefix: 240-938-####
City: Ashton, MD
County: Montgomery
Company: Omnipoint Communications Cap Operations
Prefix: 240-949-####
City: Mount Rainier, MD
County: Prince Georges
Company: Cavalier East LLC
Prefix: 240-964-####
City: Cumberland, MD
County: Allegany
Company: Verizon Maryland
Prefix: 240-965-####
City: College Park, MD
County: Prince Georges
Company: Paetec Communications
Prefix: 240-976-####
City:
County:
Company: Baltimore-washington Telephone (bwt)
Prefix: 240-979-####
City: Cumberland, MD
County: Allegany
Company: Level 3 Communications
Prefix: 240-986-####
City: Nanjemoy, MD
County: Charles
Company: Xo Maryland
Prefix: 240-988-####
City: Beltsville, MD
County: Prince Georges
Company: Sprint Spectrum L.p.
Prefix: 240-993-####
City: Indian Head, MD
County: Charles
Company: Xo Maryland
Prefix: 240-994-####
City: Rockville, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless
Prefix: 240-997-####
City: Silver Spring, MD
County: Montgomery
Company: Cellco Partnership DBA Verizon Wireless

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