Area codes 301, 240, and 227 - Wikipedia
The red area has area codes 227, 240 and 301. Area codes 301, 240, and 227 are telephone area codes in the North American Numbering Plan (NANP) for the western part of the U.S. state of Maryland.
Area Code 240 - Map, time zone, and phone lookup - CallerCenter
About area code 240: location, common spam callers, related area codes, and more. Includes 240 reverse phone lookup to identify spam callers.
240 Area Code - Location, Time, Map, Cities and Census Data
Jan 1, 2026 · Area Code 240 is located in Maryland. It covers 111 cities, including Baltimore, Columbia, Cumberland, Waldorf, and Silver Spring. It also covers 13 counties, including Montgomery County, …
240 area code — information, time zone, map
2 days ago · 240 is an area code located in the state of Maryland, US. The largest city it serves is Germantown. Find out where 240 area code zone from, which states, counties and cities it covers. …
Area Code 240 phone numbers - Whitepages
Browse area code 240 phone numbers, prefixes and exchanges. The 240 area code serves Washington, Beltsville, Frederick, Hagerstown, Annapolis Junction, covering 46 ZIP codes in 16 …
240 Area Code: Maryland | Location & Time Zone
The 240 area code is an overlay area code that covers the same geographic territory as area code 301 in western Maryland. It was established on June 1, 1997, as Maryland’s first overlay area code to …
240 Area Code - Location, Map, Current Time, Prefixes
Area code 240 is located in Maryland. Get the area’s map, cities covered, current time, prefixes, and dialing instructions.
240 Area Code: Guide to Western Maryland Numbers | Burner
240 is an area code that services the region of Western Maryland, USA. If you live there or are setting up a business in the area, it’s a good idea to invest in a 240 code to appear legitimate and gain the …
240 Area Code - Map, Phone Lookup, Time Zone - Wirefly
Find 240 area code details including city, time zone, and map. Lookup area code 240 phone number, name, and location.
Where Is The 240 Area Code Located? City Guide | State | Location
Area code 240 covers the western half of Maryland, namely the part of Maryland that is included in the Washington, D.C. metropolitan area. With an estimated population of 76,716, Silver Spring is defined …