← Area code 207
207-434 phone numbers
Numbers 207-434-0000 to 207-434-9999 are assigned to West Penobscot Tel. & Tel. Co (rate centre JONESBORO, ME, NANPA abbreviation). 4 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 207-434-6xxx, 207-434-7xxx, 207-434-8xxx, 207-434-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.