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Area Code Lookup

Area Code 240 Phone Lookup

Maryland, United States. Explore phone prefixes, caller activity, exchange details, and community reports connected to this area code.

517prefix records
44lookup pages
240area code

Phone Prefixes in This Area Code

Each prefix groups related phone numbers by exchange, location, carrier, and line type.

Landline

(240) 333

CityWashington
CountyDistrict of Columbia
CarrierCavalier East Llc - Md
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Landline

(240) 335

CityHerndon
CountyFairfax
CarrierCavalier Telephone Mid-atlantic Llc - Md
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Landline

(240) 336

CityChevy Chase
CountyMontgomery
CarrierCore Communications Inc. - Md
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Wireless

(240) 338

CityAnnapolis Junction
CountyHoward
CarrierCellco Partnership Dba Verizon Wireless - Md
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Landline

(240) 339

CityWashington
CountyDistrict of Columbia
CarrierCavalier East Llc - Md
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Landline

(240) 341

CityFrederick
CountyFrederick
CarrierMci Worldcom Communications Inc. - Md
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