989-637 phone numbers

Numbers 989-637-0000 to 989-637-9999 are assigned to Frontier North, Inc. in Palo, MI. 8 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 989-637-3xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 989-637