Area code 531: where it is and who calls from it
Area code 531 is in Nebraska.
Nebraska (Omaha, Lincoln, Norfolk, Superior, and most of eastern Nebraska)
| Where | Nebraska |
|---|---|
| Time zone | Central Time ยท local time |
| In service since | 2011 |
| Overlay | Yes, with 402 |
| Prefixes assigned | 265 of 792 possible (33%) |
Overlay: 531 covers the same area as 402. Overlay areas use 10-digit dialing, so a seven-digit number alone won't connect, and neighbors can have different area codes.
Where 531 numbers started
Every prefix is assigned to a rate center, the local calling area it was set up in. These are the biggest in 531, with how many prefixes each has.
Plus 45 smaller rate centers.
Who holds 531 numbers
- Mobile carrier 35%
- Local phone company 2%
- Internet / business phone carrier 55%
- Phone company 8%
| Carrier | Type | Prefixes | Share |
|---|---|---|---|
| Onvoy | Internet / business phone carrier | 67 | 25% |
| Verizon Wireless | Mobile carrier | 23 | 9% |
| AT&T Mobility | Mobile carrier | 23 | 9% |
| T-Mobile (including Sprint) | Mobile carrier | 19 | 7% |
| Teleport Communications America | Internet / business phone carrier | 18 | 7% |
| UScellular | Mobile carrier | 15 | 6% |
| Level 3 (Lumen) | Internet / business phone carrier | 10 | 4% |
| Allo Communications | Phone company | 9 | 3% |
| Bandwidth | Internet / business phone carrier | 7 | 3% |
| MetroPCS (T-Mobile) | Mobile carrier | 7 | 3% |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number.
States served: Nebraska.
Other area codes in Nebraska
Got a call from 531?
An area code tells you where a number was first assigned, not where the caller is. People keep their numbers when they move, and scammers can fake any number. If you weren't expecting the call, let it go to voicemail.
If the call shows a 531 number that matches the first six digits of your own, that's often neighbor spoofing. Use the box above to check the full number.
Area code facts from the NANPA area code database (updated 10/06/2026); prefixes and carriers from NANPA's central office code records (updated 2026-10-10). Place description adapted from Wikipedia, CC BY-SA 4.0.