NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 531
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-02-20 | 531-360-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | ALBION | NE |
| 2023-09-14 | 531-344-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | FREMONT | NE |
| 2023-09-05 | 531-314-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | W HAMBURG | NE |
| 2023-04-12 | 531-286-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | OAKLAND | NE |
| 2023-04-12 | 531-295-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | LAUREL | NE |
| 2022-05-24 | 531-268-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | ATKINSON | NE |
| 2022-05-17 | 531-212-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | OAKLAND | NE |
| 2022-04-14 | 531-281-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | TEKAMAH | NE |
| 2022-02-05 | 531-400-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | COLUMBUS | NE |
| 2021-12-10 | 531-278-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | LINCOLN | NE |
| 2021-11-08 | 531-238-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | RANDOLPH | NE |
| 2021-06-22 | 531-776-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | AINSWORTH | NE |
| 2021-05-06 | 531-202-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | OAKLAND | NE |
| 2021-04-27 | 531-257-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | VALENTINE | NE |
| 2021-01-26 | 531-252-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | CRESTON | NE |
| 2021-01-25 | 531-234-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | NEWMAN GRV | NE |
| 2021-01-25 | 531-414-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | MADISON | NE |
| 2021-01-25 | 531-625-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | SOSIOUX CY | NE |
| 2020-12-28 | 531-895-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | OMAHA | NE |
| 2020-09-18 | 531-202-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | OAKLAND | NE |
| 2020-01-16 | 531-335-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | WEST POINT | NE |
| 2019-11-07 | 531-235-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | EMERSON | NE |
| 2019-11-07 | 531-237-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | PENDER | NE |
| 2019-08-26 | 531-206-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | AINSWORTH | NE |
| 2019-08-26 | 531-227-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | CLARKSON | NE |
| 2018-08-30 | 531-571-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | WAKEFIELD | NE |
| 2018-08-21 | 531-202-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | OAKLAND | NE |
| 2018-08-21 | 531-208-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | ATKINSON | NE |
| 2018-08-21 | 531-214-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | PILGER | NE |
| 2018-08-21 | 531-216-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | SCHUYLER | NE |
| 2018-08-21 | 531-223-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | HOWELLS | NE |
| 2017-03-09 | 531-888-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | O NEILL | NE |
| 2017-03-09 | 531-888-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | O NEILL | NE |
| 2017-01-06 | 531-215-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | OMAHA | NE |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.