← Area code 207
207-366 phone numbers
Numbers 207-366-0000 to 207-366-9999 are assigned to The Island Telephone Company (rate centre MATINICUS, ME, NANPA abbreviation). 1 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 207-366-1xxx, 207-366-2xxx, 207-366-4xxx, 207-366-5xxx, 207-366-7xxx, 207-366-8xxx, 207-366-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.