413-724 phone numbers

Numbers 413-724-0000 to 413-724-9999 are assigned to Onvoy, LLC (rate centre WILLIAMSBG, MA, NANPA abbreviation). 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 413-724-1xxx, 413-724-3xxx, 413-724-7xxx, 413-724-8xxx, 413-724-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 413-724