350-210 phone numbers

Numbers 350-210-0000 to 350-210-9999 are assigned to Onvoy, LLC (rate centre TUOLUMNE, CA, NANPA abbreviation). 4 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 350-210-4xxx, 350-210-5xxx, 350-210-6xxx, 350-210-8xxx, 350-210-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 350-210