← Area code 307
307-922 phone numbers
Numbers 307-922-0000 to 307-922-9999 are assigned to Verizon Wireless (rate centre ROCK SPG, WY, NANPA abbreviation). 5 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.