6/1/2023 0 Comments Phone number 301 area codeThe remaining supply of available telephone numbers in the 240/301 area is estimated to be exhausted in the second quarter of 2023 – requiring the establishment of a new area code to support future demands in the region.Ĭustomers with a 240 or 301 area code will maintain their existing area codes, and their phone numbers will not change.īecause the 240/301 region is served by two overlay area codes, callers are already required to use 10-digit dialing when making calls. The 240/301 calling area serves residents and businesses in Allegany, Anne Arundel, Carroll, Charles, Frederick, Garrett, Montgomery, Prince George’s, St. In August, the Commission approved a petition filed by the North American Numbering Plan Administrator (NANPA), the neutral third-party entity that allocates telephone numbering resources.ĭwindling Supply of Existing 240/301 Phone Numbers The Maryland Public Service Commission (PSC) announced the assignment of 227 as a new area code, eventually serving the same geographic area in Maryland currently served by the 240 and 301 area codes.
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