563-303 phone numbers

Numbers 563-303-0000 to 563-303-9999 are assigned to Windstream Iowa Communications, Inc. in Fayette, IA. 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 563-303-1xxx, 563-303-2xxx, 563-303-4xxx, 563-303-5xxx, 563-303-6xxx, 563-303-8xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 563-303