When those remaining 240/301 numbers are exhausted all future phone number assignments will be made in the new 227 area code.īecause the 240/301 region is served by two overlay area codes, callers are already required to use 10-digit dialing when making calls. Under the implementation plan approved by the PSC, no new 227 numbers will be assigned in the area until the remaining 240/301 numbers are completely exhausted. Customers with a 240 or 301 area code will maintain their existing area codes and their phone numbers will not change. The 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.

Other impacted counties are Frederick, Howard, Carroll, and Anne Arundel. The 240/301 calling area serves residents and businesses in Allegany, Charles, Garrett, Montgomery, Prince George’s, St. The Commission voted on August 3, 2022, to approve a petition filed by the North American Numbering Plan Administrator (NANPA), which is the neutral third-party entity that allocates telephone numbering resources.ĭwindling Supply of Existing 240/301 Phone Numbers The Maryland Public Service Commission on Wednesday announced the assignment of 227 as a new area code which will eventually serve the same geographic area in Maryland currently served by the 240 and 301 area codes. BALTIMORE, MD-A new telephone area code will soon be coming to Maryland.

Phone number 301 area code