NumberResearchRecent thousands-block assignments
15 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, last 30 days — NPA 931
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-03-15 | 931-341-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | COOKEVL SO | TN |
| 2018-03-13 | 931-329-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | HOHENWALD | TN |
| 2018-03-07 | 931-208-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | MCEWEN | TN |
| 2018-03-07 | 931-286-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | COLUMBIA | TN |
| 2018-03-07 | 931-413-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | CUNNINGHAM | TN |
| 2018-03-07 | 931-567-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | CULLEOKA | TN |
| 2018-03-07 | 931-666-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | CUMBERLDCY | TN |
| 2018-03-07 | 931-717-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | BLANCHE | TN |
| 2018-02-22 | 931-229-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | LYNCHBURG | TN |
| 2018-02-22 | 931-283-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | WINCHESTER | TN |
| 2018-02-22 | 931-329-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | HOHENWALD | TN |
| 2018-02-22 | 931-347-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | PULASKI | TN |
| 2018-02-22 | 931-441-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | LYNNVILLE | TN |
| 2018-02-22 | 931-487-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | SPRINGHILL | TN |
| 2018-02-22 | 931-534-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | DOVER | TN |
| 2018-02-22 | 931-575-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | SHELBYVL | TN |
| 2018-02-22 | 931-764-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | W VANLEER | TN |
| 2018-02-05 | 931-240-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | FAYETTEVL | TN |
| 2018-02-05 | 931-272-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | CLARKSVL | TN |
| 2018-01-19 | 931-414-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MCMINNVL | TN |
| 2017-12-20 | 931-401-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | CLARKSVL | TN |
| 2017-12-18 | 931-272-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | CLARKSVL | TN |
| 2017-12-18 | 931-272-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | CLARKSVL | TN |
| 2017-12-06 | 931-341-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | COOKEVL SO | TN |
| 2017-12-01 | 931-255-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | BAXTER | TN |
| 2017-11-16 | 931-348-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ERIN | TN |
| 2017-11-06 | 931-742-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | TANSI | TN |
| 2017-10-27 | 931-263-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | CLARKSVL | TN |
| 2017-10-24 | 931-277-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | PLEASANTHL | TN |
| 2017-10-24 | 931-322-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MONTEREY | TN |
| 2017-10-02 | 931-666-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | CUMBERLDCY | TN |
| 2017-09-20 | 931-272-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | CLARKSVL | TN |
| 2017-09-20 | 931-272-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | CLARKSVL | TN |
| 2017-09-20 | 931-283-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | WINCHESTER | TN |
| 2017-07-19 | 931-774-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MTPLEASANT | TN |
| 2017-06-30 | 931-655-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | PETERSBURG | TN |
| 2017-06-27 | 931-410-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | PALMYRA | TN |
| 2017-06-16 | 931-337-3XXX | 3000–3999 | Assigned | BEN LOMAND COMMUNICATIONS, INC. | 4586 | CROSSVILLE | TN |
| 2017-06-13 | 931-272-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | CLARKSVL | TN |
| 2017-06-13 | 931-384-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | COLUMBIA | TN |
| 2017-06-05 | 931-259-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MCMINNVL | TN |
| 2017-06-05 | 931-259-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MCMINNVL | TN |
| 2017-06-02 | 931-324-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | LAWRENCEBG | TN |
| 2017-06-01 | 931-534-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | DOVER | TN |
| 2017-05-31 | 931-255-5XXX | 5000–5999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | BAXTER | TN |
| 2017-05-31 | 931-255-6XXX | 6000–6999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | BAXTER | TN |
| 2017-05-31 | 931-255-7XXX | 7000–7999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | BAXTER | TN |
| 2017-05-31 | 931-255-8XXX | 8000–8999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | BAXTER | TN |
| 2017-05-23 | 931-505-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | COLUMBIA | TN |
| 2017-05-04 | 931-324-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | LAWRENCEBG | TN |
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.