707-661 phone numbers

Numbers 707-661-0000 to 707-661-9999 are assigned to New Cingular Wireless PCS, LLC in Calistoga, CA. 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 707-661-2xxx — calls from these use spoofed caller IDs.

Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.

Reported numbers in 707-661