Active Prefixes in Area Code 531

- 531-200
- Omaha, Nebraska
- 531-201
- Omaha, Nebraska
- 531-202
- Oakland, Nebraska
- 531-203
- Omaha, Nebraska
- 531-204
- Norfolk, Nebraska
- 531-205
- Omaha, Nebraska
- 531-207
- Lincoln, Nebraska
- 531-208
- Atkinson, Nebraska
- 531-209
- Blair, Nebraska
- 531-210
- Omaha, Nebraska
- 531-212
- Oakland, Nebraska
- 531-213
- Omaha, Nebraska
- 531-214
- Pilger, Nebraska
- 531-215
- Omaha, Nebraska
- 531-216
- Schuyler, Nebraska
- 531-217
- Plattsmouth, Nebraska
- 531-218
- Lincoln, Nebraska
- 531-219
- Fremont, Nebraska
- 531-220
- Lincoln, Nebraska
- 531-221
- Adams, Nebraska
- 531-222
- Omaha, Nebraska
- 531-223
- Howells, Nebraska
- 531-224
- Auburn, Nebraska
- 531-233
- Omaha, Nebraska
- 531-259
- Bristow, Nebraska
- 531-277
- Omaha, Nebraska
- 531-289
- Lincoln, Nebraska
- 531-299
- Omaha, Nebraska
- 531-300
- Creston, Nebraska
- 531-301
- Omaha, Nebraska
- 531-309
- Edgar, Nebraska
- 531-329
- Omaha, Nebraska
- 531-333
- Lincoln, Nebraska
- 531-335
- West Point, Nebraska
- 531-355
- Omaha, Nebraska
- 531-365
- Omaha, Nebraska
- 531-375
- Omaha, Nebraska
- 531-389
- Omaha, Nebraska
- 531-393
- Omaha, Nebraska
- 531-414
- Madison, Nebraska
- 531-444
- Omaha, Nebraska
- 531-459
- Utica, Nebraska
- 531-466
- Omaha, Nebraska
- 531-484
- Omaha, Nebraska
- 531-500
- Lincoln, Nebraska
- 531-519
- Wayne, Nebraska
- 531-571
- Wakefield, Nebraska
- 531-600
- Omaha, Nebraska
- 531-622
- Omaha, Nebraska
- 531-639
- Lincoln, Nebraska
- 531-721
- Omaha, Nebraska
- 531-727
- Seward, Nebraska
- 531-739
- Lincoln, Nebraska
- 531-772
- Omaha, Nebraska
- 531-777
- Omaha, Nebraska
- 531-888
- Oneill, Nebraska