← Area code 563
563-516 phone numbers
Numbers 563-516-0000 to 563-516-9999 are assigned to T-Mobile USA, Inc. in Elkader, IA. 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 563-516-2xxx, 563-516-3xxx, 563-516-4xxx, 563-516-5xxx, 563-516-6xxx, 563-516-8xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.