USA Phone Code Guide
USA Phone
Code Guide

Telephone Area +1 (240) XXX-XXXX / Page 1

Phone numbers of the state Maryland
Prefix: +1240
This prefix is distributed within the state Maryland
The largest city in the region is Gaithersburg
Time Zone: Eastern
Winter time: UTC-5
Summer time: UTC-4
Below on the map, there is indicated the largest city in the telephone area +1-240-...-.... Maryland Gaithersburg.

In the United States, telephone numbers are divided into a country code (+1), an area code (or prefix), which is three digits long, and a subscriber number (seven digits). These are just a few examples, and there are over 300 area codes in the United States. Each code can cover both large cities and less populated areas depending on population density and telephone network distribution.



Phone numbers +1 (240) XXX-XXXX

Other pages: 134567
Company District Major City Prefix
NationslineFrederickThurmont, MD+1 (240) 288-XXXX
Cavalier Telephone Mid-atlanticPrince George'sOxon Hill, MD+1 (240) 289-XXXX
Allegiance TelecomPrince George'sMount Rainier, MD+1 (240) 290-XXXX
New Cingular Wireless PCS - DCWashingtonHagerstown, MD+1 (240) 291-XXXX
Verizon MarylandMontgomeryKensington, MD+1 (240) 292-XXXX
Starpower CommunicationsMontgomerySilver Spring, MD+1 (240) 293-XXXX
Xo MarylandPrince George'sLaurel, MD+1 (240) 294-XXXX
Cavalier Telephone Mid-atlanticPrince George'sLaurel, MD+1 (240) 295-XXXX
Cavalier Telephone Mid-atlanticPrince George'sHyattsville, MD+1 (240) 296-XXXX
Level 3 CommunicationsPrince George'sCollege Park, MD+1 (240) 297-XXXX
Cellco Partnership DBA Verizon WirelessSaint Mary'sLeonardtown, MD+1 (240) 298-XXXX
Nextel CommunicationsCharlesWaldorf, MD+1 (240) 299-XXXX
Cellco Partnership DBA Verizon WirelessWaldorf, MD+1 (240) 300-XXXX
Cavalier Telephone Mid-atlanticPrince George'sClinton, MD+1 (240) 303-XXXX
Nextel CommunicationsPrince George'sMount Rainier, MD+1 (240) 304-XXXX
Sprint Spectrum L.p.Prince George'sBeltsville, MD+1 (240) 305-XXXX
Allegiance TelecomMontgomeryGaithersburg, MD+1 (240) 306-XXXX
AT&T LocalFrederickEmmitsburg, MD+1 (240) 307-XXXX
New Cingular Wireless PCS - DCMontgomeryDamascus, MD+1 (240) 308-XXXX
Uscoc Of Cumberland DBA United States Cel MdWashingtonHagerstown, MD+1 (240) 310-XXXX
Cavalier Telephone Mid-atlanticPrince George'sCapitol Heights, MD+1 (240) 312-XXXX
Verizon MarylandWashingtonHagerstown, MD+1 (240) 313-XXXX
Verizon MarylandMontgomeryRockville, MD+1 (240) 314-XXXX
Verizon MarylandFrederickFrederick, MD+1 (240) 315-XXXX
Sprint Spectrum L.p.Chevy Chase, MD+1 (240) 316-XXXX
Starpower CommunicationsSaint Mary'sCallaway, MD+1 (240) 317-XXXX
Verizon MarylandPrince George'sClinton, MD+1 (240) 318-XXXX
Cellco Partnership DBA Verizon WirelessColumbia, MD+1 (240) 319-XXXX
Cavalier East LLCCharlesWaldorf, MD+1 (240) 320-XXXX
Uscoc Of Cumberland DBA United States Cel MdGarrettOakland, MD+1 (240) 321-XXXX
Core CommunicationsAlleganyMccoole, MD+1 (240) 322-XXXX
Core CommunicationsFrederickEmmitsburg, MD+1 (240) 323-XXXX
Ymax Communications Corp.Clarksville, MD+1 (240) 324-XXXX
Core CommunicationsMontgomeryDamascus, MD+1 (240) 325-XXXX
Cavalier Telephone Mid-atlanticPrince George'sUpper Marlboro, MD+1 (240) 326-XXXX
Core CommunicationsMontgomeryGaithersburg, MD+1 (240) 327-XXXX
Verizon MarylandMontgomeryRockville, MD+1 (240) 328-XXXX
Level 3 CommunicationsWashingtonHagerstown, MD+1 (240) 329-XXXX
Sprint Spectrum L.p.Cabin John, MD+1 (240) 330-XXXX
Global Naps SouthMontgomerySilver Spring, MD+1 (240) 331-XXXX
Global Naps SouthCharlesNewburg, MD+1 (240) 332-XXXX
Cavalier East LLCMontgomeryMount Rainier, MD+1 (240) 333-XXXX
Global Crossing Local Services-mdPrince George'sMount Rainier, MD+1 (240) 334-XXXX
Cavalier Telephone Mid-atlanticPrince George'sGlenn Dale, MD+1 (240) 335-XXXX
Core CommunicationsMontgomeryBethesda, MD+1 (240) 336-XXXX
Global Naps SouthPrince George'sCapitol Heights, MD+1 (240) 337-XXXX
Cellco Partnership DBA Verizon WirelessMontgomerySilver Spring, MD+1 (240) 338-XXXX
Cavalier East LLCPrince George'sUpper Marlboro, MD+1 (240) 339-XXXX
Mci Worldcom CommunicationsAdamstown, MD+1 (240) 341-XXXX
Starpower CommunicationsMontgomerySandy Spring, MD+1 (240) 342-XXXX
Cellco Partnership DBA Verizon Wireless+1 (240) 343-XXXX
New Cingular Wireless PCS - DCFrederickFrederick, MD+1 (240) 344-XXXX
Level 3 CommunicationsSandy Spring, MD+1 (240) 345-XXXX
Sprint Spectrum L.p.CharlesWaldorf, MD+1 (240) 346-XXXX
Bandwidth.com ClecHagerstown, MD+1 (240) 347-XXXX
Level 3 CommunicationsPrince George'sClinton, MD+1 (240) 348-XXXX
Global Crossing Local Services-mdCharlesLa Plata, MD+1 (240) 349-XXXX
Sprint Spectrum L.p.Prince George'sBeltsville, MD+1 (240) 350-XXXX
Sprint Spectrum L.p.Prince George'sBeltsville, MD+1 (240) 351-XXXX
Global Naps SouthCharlesLa Plata, MD+1 (240) 352-XXXX
Sprint Spectrum L.p.Prince George'sBeltsville, MD+1 (240) 353-XXXX
Sprint Spectrum L.p.Prince George'sBeltsville, MD+1 (240) 354-XXXX
Sprint Spectrum L.p.Prince George'sBeltsville, MD+1 (240) 355-XXXX
Level 3 CommunicationsFrederickFrederick, MD+1 (240) 356-XXXX
Cellco Partnership DBA Verizon WirelessFrederick, MD+1 (240) 357-XXXX
Global Naps SouthMontgomeryDamascus, MD+1 (240) 358-XXXX
Global Naps SouthCharlesIndian Head, MD+1 (240) 359-XXXX
Cavalier Telephone Mid-atlanticMontgomeryGaithersburg, MD+1 (240) 361-XXXX
Verizon MarylandAlleganyCumberland, MD+1 (240) 362-XXXX
Global Naps SouthMontgomeryKensington, MD+1 (240) 363-XXXX
Cavalier East LLCMontgomeryGaithersburg, MD+1 (240) 364-XXXX
Baltimore-washington Telephone BwtMontgomeryDamascus, MD+1 (240) 365-XXXX
AT&T LocalWashingtonWilliamsport, MD+1 (240) 366-XXXX
Nextel CommunicationsFrederickFrederick, MD+1 (240) 367-XXXX
Global Naps SouthCharlesWaldorf, MD+1 (240) 368-XXXX
Core CommunicationsFrederickMount Airy, MD+1 (240) 369-XXXX
Sprint Spectrum L.p.Bethesda, MD+1 (240) 370-XXXX
Global Naps SouthMontgomerySilver Spring, MD+1 (240) 371-XXXX
Nextel CommunicationsMontgomeryGaithersburg, MD+1 (240) 372-XXXX
Verizon MarylandAnne ArundelOdenton, MD+1 (240) 373-XXXX