It looks like the 207 area code will remain as the only one for the whole state of Maine, at least until 2045.
From the Maine Public Utilities Commission:
The North American Numbering Plan Administrator (NANPA) has released an updated forecast extending the life of Maine’s iconic 207 area code to the first quarter of 2045. This marks a significant 35-quarter extension from its previous forecast, which projected 207 would be exhausted by the second quarter of 2036.
The Maine Public Utilities Commission (PUC), which has long prioritized the preservation of the 207 area code, welcomed the announcement as validation of its ongoing efforts to delay the need for a second area code in the state.
Maine's iconic 207 area code is predicted to last nearly 20 years, according to an update from the North American Numbering Plan Administrator. This is a significant extension from previous forecasts. FMI: https://t.co/H7bc0jicbF pic.twitter.com/DWkiaz1spS
— Maine Public Utilities Commission (@Maine_PUC) April 29, 2025
Maine is one of only 11 states that still has only one area code, but the entire country is impacted by limited numbering resources and the entire North American Numbering system could run out of area codes between 2047 and 2053 according to the latest estimates. Should that happen, current phone systems that utilize the standard 10-digit telephone number would need to be re-programmed to a 12-digit number, which could cost up to $270 billion by some FCC estimates.
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