← Area code 207
207-628 phone numbers
Numbers 207-628-0000 to 207-628-9999 are assigned to Somerset Tel. Co. (rate centre NNEWPORTLD, ME, NANPA abbreviation). 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 207-628-5xxx, 207-628-6xxx, 207-628-7xxx, 207-628-8xxx, 207-628-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.