← Area code 507
507-756 phone numbers
Numbers 507-756-0000 to 507-756-9999 are assigned to Midcontinent Communications in St. Clair, MN. 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 507-756-2xxx, 507-756-3xxx, 507-756-4xxx, 507-756-5xxx, 507-756-6xxx, 507-756-8xxx, 507-756-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.