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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) 616

CityReston
CountyFairfax
CarrierMci Worldcom Communications Inc. - Md
View Prefix
Landline

(240) 619

CityBattery Park
CountyIsle of Wight
CarrierMci Worldcom Communications Inc. - Md
View Prefix
Landline

(240) 620

CityAnnapolis Junction
CountyHoward
CarrierMci Worldcom Communications Inc. - Md
View Prefix
Landline

(240) 621

CityWashington
CountyDistrict of Columbia
CarrierMci Worldcom Communications Inc. - Md
View Prefix