← Area code 573
573-497 phone numbers
Numbers 573-497-0000 to 573-497-9999 are assigned to Brightspeed of East Missouri, LLC in Lewistown, MO. 1 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 573-497-0xxx, 573-497-1xxx, 573-497-4xxx, 573-497-5xxx, 573-497-6xxx, 573-497-7xxx, 573-497-8xxx, 573-497-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.