217-481 phone numbers

Numbers 217-481-0000 to 217-481-9999 are assigned to T-Mobile USA, Inc. (rate centre SPRINGFLD, IL, NANPA abbreviation). 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 217-481-2xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 217-481