563-644 phone numbers

Numbers 563-644-0000 to 563-644-9999 are assigned to Ton80 Communications, LLC in Decorah, IA. 6 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 563-644-3xxx, 563-644-4xxx, 563-644-5xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 563-644