| Start Date | 03/26/2011 |
| Current Time in Area Code 531 | 531> CST |
| Timezone | Central Standard Time |
| Regional Market Area | Lincoln-Hastings-Kearny Area North Platte Area Omaha Area Sioux City Area |
| Metro Area(s) | Beatrice, NE Columbus, NE Fremont, NE Hastings, NE Lincoln, NE Norfolk, NE Omaha-Council Bluffs, NE-IA |
| Population (2020) | 1600489 |
| Adjacent Area Codes | 308,402,605,660,712,785 |
| Overlay Area Codes | 402 |