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  2. Area codes 301, 240, and 227 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_301,_240,_and_227

    Area code 301 was the first area code for all of Maryland, from 1947, when the area code system was created, until 1991, when everything from Baltimore eastward split off as area code 410. In 1997, area code 240 was added as an overlay area code for the 301 territory. On June 14, 2023, a third overlay code, 227, was added to provide more ...

  3. List of Maryland area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Maryland_area_codes

    The blue area is assigned area codes 301, 240, and 227; the red area is area codes 410, 443 and 667 The state of Maryland is served by the following area codes: Area codes

  4. List of North American Numbering Plan area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_North_American...

    1955: split to give New Brunswick its own 506 area code; Newfoundland was added to the service area when it joined Canada in 1949. When 506 was created, Newfoundland was assigned to the new code along with New Brunswick. In 1962, Newfoundland received its own code, 709. 2014: overlaid by 782; 851 reserved as a third area code for the region. 903

  5. 30 Scam Phone Numbers To Block and Area Codes To Avoid - AOL

    www.aol.com/19-dangerous-scam-phone-numbers...

    Quick Take: List of Scam Area Codes. More than 300 area codes exist in the United States alone which is a target-rich environment for phone scammers.

  6. Category:Area codes in the United States - Wikipedia

    en.wikipedia.org/wiki/Category:Area_codes_in_the...

    Area code 224; Area code 225; Area codes 301, 240, and 227; Area code 228; Area code 229; Area code 231; Area code 239; Area code 240; Area codes 248 and 947; Area code 251; Area code 252; Area code 253; Area code 254; Area codes 256 and 938; Area code 260; Area code 262; Area code 267; Area code 269; Area codes 270 and 364; Area code 274; Area ...

  7. List of area code overlays - Wikipedia

    en.wikipedia.org/wiki/List_of_area_code_overlays

    In addition to being the sole area code in the Space Coast region around the Kennedy Space Center, this is the only partial overlay area code in North America 323: 213: Central Los Angeles, incl. Downtown L.A. and Hollywood: 326: 937: Southwest Ohio: 331: 630: Western suburbs of Chicago: 332, 646 , 917: 212

  8. Area codes 410, 443, and 667 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_410,_443,_and_667

    The three area codes are overlay codes for one numbering plan area, among which 410 was the initial area code for the NPA, when it was split from area code 301 in 1991. 443 and 667 found assignment primarily in cellular service and for competitive local exchange carriers, such as Comcast and Cavalier Telephone, when introduced, but have since ...

  9. Area codes 202 and 771 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_202_and_771

    The region's continued growth in the 1990s ultimately led to both suburban area codes being overlaid, with area code 240 overlaying 301 in 1997, and area code 571 overlaying 703 in 2000. Years after the introduction of mobile number portability, many cell phone customers on the Virginia and Maryland sides of the metro have 202 numbers.