← Area code 331
331-289 phone numbers
Numbers 331-289-0000 to 331-289-9999 are assigned to T-Mobile USA, Inc. in Hinsdale, IL. 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 331-289-8xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.
Reported numbers in 331-289
- 1 (331) 289-1051 2complaints
- 2 (331) 289-1224 2complaints
- 3 (331) 289-1563 2complaints
- 4 (331) 289-1018 1complaints
- 5 (331) 289-1028 1complaints
- 6 (331) 289-1064 1complaints
- 7 (331) 289-1235 1complaints
- 8 (331) 289-1252 1complaints
- 9 (331) 289-1254 1complaints
- 10 (331) 289-1296 1complaints
- 11 (331) 289-1415 1complaints
- 12 (331) 289-1548 1complaints
- 13 (331) 289-1681 1complaints
- 14 (331) 289-1731 1complaints
- 15 (331) 289-1748 1complaints
- 16 (331) 289-1865 1complaints
- 17 (331) 289-2682 1complaints
- 18 (331) 289-3786 1complaints
- 19 (331) 289-4687 1complaints
- 20 (331) 289-5391 1complaints
- 21 (331) 289-6162 1complaints