401-646 phone numbers

Numbers 401-646-0000 to 401-646-9999 are assigned to Level 3 Communications, LLC in Hope Valley, RI. 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 401-646-1xxx, 401-646-5xxx, 401-646-8xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 401-646