401-620 phone numbers

Numbers 401-620-0000 to 401-620-9999 are assigned to Onvoy, LLC in Westerly, RI.

Not assigned to any carrier: 401-620-1xxx, 401-620-4xxx, 401-620-5xxx, 401-620-6xxx, 401-620-7xxx, 401-620-8xxx, 401-620-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 401-620