Area Code 240 Maryland - Exchanges, Map and Location

Area Code 240, Maryland Cities, Neighborhoods and Local Features

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