North American Telephone Operator
North American
Telephone Operator

Telephone Area 240. .

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.

The table below shows the main major cities and telecom operators.

If you notice any errors of any community’s location on the map, please report it via the feedback form.

Phone numbers +1-240-YYY-YYYY

Other pages: 234567
Company District Major City Prefix
Bandwidth.com ClecMount Rainier, MD+1-240200-SSSS
Global Naps SouthSaint Mary'sRidge, MD+1-240201-SSSS
New Cingular Wireless PCS - DCMontgomeryRockville, MD+1-240205-SSSS
Xo MarylandPrince George'sGlenn Dale, MD+1-240206-SSSS
Cavalier East LLCMontgomeryDamascus, MD+1-240207-SSSS
Global Naps SouthCharlesLa Plata, MD+1-240208-SSSS
Global Naps SouthCharlesIndian Head, MD+1-240209-SSSS
New Cingular Wireless PCS - DCCharlesWaldorf, MD+1-240210-SSSS
Core CommunicationsGarrettOakland, MD+1-240212-SSSS
Global Naps SouthCharlesWaldorf, MD+1-240213-SSSS
Global Naps SouthSaint Mary'sMechanicsville, MD+1-240214-SSSS
Telcove OperationsFrederickFrederick, MD+1-240215-SSSS
Nextel CommunicationsCharlesWaldorf, MD+1-240216-SSSS
Omnipoint Communications Cap OperationsWashingtonHagerstown, MD+1-240217-SSSS
Global Naps SouthCharlesNanjemoy, MD+1-240218-SSSS
Global Naps SouthCharlesNewburg, MD+1-240219-SSSS
Global Naps SouthMontgomeryPoolesville, MD+1-240220-SSSS
Verizon MarylandMontgomeryRockville, MD+1-240221-SSSS
Cavalier Telephone Mid-atlanticCharlesWaldorf, MD+1-240222-SSSS
Allegiance TelecomPrince George'sMount Rainier, MD+1-240223-SSSS
Prince George's+1-240224-SSSS
Core CommunicationsFrederickFrederick, MD+1-240225-SSSS
Verizon MarylandPrince George'sLaurel, MD+1-240228-SSSS
Broadwing Communications. LLCCharlesWaldorf, MD+1-240229-SSSS
Global Crossing Local Services-mdCharlesHughesville, MD+1-240230-SSSS
Core CommunicationsWashingtonHagerstown, MD+1-240231-SSSS
Broadwing Communications. LLCPrince George'sMount Rainier, MD+1-240232-SSSS
Teleport Communications Group - DCCharlesNewburg, MD+1-240233-SSSS
Montgomery+1-240234-SSSS
Paetec CommunicationsMontgomeryBethesda, MD+1-240235-SSSS
Verizon MarylandFrederickFrederick, MD+1-240236-SSSS
Teleport Communications Group - DCSaint Mary'sCallaway, MD+1-240237-SSSS
Paetec CommunicationsMontgomeryRockville, MD+1-240238-SSSS
Core CommunicationsSaint Mary'sLeonardtown, MD+1-240239-SSSS
Starpower CommunicationsPrince George'sChevy Chase, MD+1-240241-SSSS
Starpower CommunicationsMontgomeryKensington, MD+1-240242-SSSS
Allegiance TelecomMontgomeryGaithersburg, MD+1-240243-SSSS
Starpower CommunicationsPrince George'sMount Rainier, MD+1-240244-SSSS
Starpower CommunicationsPrince George'sGlenn Dale, MD+1-240245-SSSS
Starpower CommunicationsMontgomeryGaithersburg, MD+1-240246-SSSS
Allegiance TelecomPrince George'sMount Rainier, MD+1-240247-SSSS
Global Naps SouthSaint Mary'sRidge, MD+1-240248-SSSS
Teleport Communications Group - DCSaint Mary'sMechanicsville, MD+1-240249-SSSS
Global Naps SouthPrince George'sBrandywine, MD+1-240250-SSSS
Core CommunicationsWashingtonHighfield, MD+1-240251-SSSS
Level 3 CommunicationsMontgomeryGaithersburg, MD+1-240252-SSSS
Global Crossing Local Services-mdPrince George'sMount Rainier, MD+1-240253-SSSS
Teleport Communications Group - DCCharlesHughesville, MD+1-240254-SSSS
Global Naps SouthMontgomeryPoolesville, MD+1-240255-SSSS
Teleport Communications Group - DCSaint Mary'sLeonardtown, MD+1-240256-SSSS
Teleport Communications Group - DCCharlesNanjemoy, MD+1-240257-SSSS
Teleport Communications Group - DCSaint Mary'sRidge, MD+1-240258-SSSS
Allegiance TelecomPrince George'sMount Rainier, MD+1-240260-SSSS
Global Naps SouthMontgomeryRockville, MD+1-240261-SSSS
Tidalwave Telephone Inc.MontgomeryDamascus, MD+1-240262-SSSS
Tidalwave Telephone Inc.MontgomeryDamascus, MD+1-240263-SSSS
Verizon MarylandPrince George'sBeltsville, MD+1-240264-SSSS
Tidalwave Telephone Inc.Prince George'sCapitol Heights, MD+1-240265-SSSS
Global Naps SouthPrince George'sGlenn Dale, MD+1-240266-SSSS
Tidalwave Telephone Inc.Prince George'sCapitol Heights, MD+1-240267-SSSS
Allegiance TelecomPrince George'sRockville, MD+1-240268-SSSS
Global Naps SouthPrince George'sClinton, MD+1-240269-SSSS
Tidalwave Telephone Inc.Prince George'sGlenn Dale, MD+1-240270-SSSS
New Cingular Wireless PCS - DCMontgomeryBethesda, MD+1-240271-SSSS
Tidalwave Telephone Inc.Prince George'sGlenn Dale, MD+1-240272-SSSS
Broadwing Communications. LLCPrince George'sMount Rainier, MD+1-240273-SSSS
New Cingular Wireless PCS - DCMontgomeryBethesda, MD+1-240274-SSSS
Core CommunicationsGarrettGrantsville, MD+1-240275-SSSS
Verizon MarylandMontgomeryRockville, MD+1-240276-SSSS
Sprint Spectrum L.p.MontgomeryBethesda, MD+1-240277-SSSS
Cellco Partnership DBA Verizon Wireless+1-240278-SSSS
Core CommunicationsCharlesWaldorf, MD+1-240279-SSSS
Comcast Phone Of Northern MarylandAnne ArundelLaurel, MD+1-240280-SSSS
New Cingular Wireless PCS - DCMontgomeryBethesda, MD+1-240281-SSSS
Global Naps SouthSaint Mary'sMechanicsville, MD+1-240282-SSSS
Paetec CommunicationsMontgomeryKensington, MD+1-240283-SSSS
NationslineAlleganyFrostburg, MD+1-240284-SSSS
Cellco Partnership DBA Verizon WirelessFrederickFrederick, MD+1-240285-SSSS
Nextel CommunicationsMontgomeryBethesda, MD+1-240286-SSSS
Core CommunicationsWashingtonHancock, MD+1-240287-SSSS

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