Canadial Know Who Called
← Area code 508

508-275 phone numbers

Numbers 508-275-0000 to 508-275-9999 are assigned to Level 3 Communications, LLC (rate centre HOLLISTON, MA, NANPA abbreviation). 4 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 508-275-1xxx, 508-275-7xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 508-275