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 |
|---|---|---|---|---|---|---|---|
| 2016-06-17 | 931-286-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COLUMBIA | TN |
| 2016-06-17 | 931-321-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | LAWRENCEBG | TN |
| 2016-06-15 | 931-414-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | MCMINNVL | TN |
| 2016-06-07 | 931-313-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | WINCHESTER | TN |
| 2016-06-01 | 931-263-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | CLARKSVL | TN |
| 2016-05-17 | 931-701-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LYLES | TN |
| 2016-05-17 | 931-716-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CENTERVL | TN |
| 2016-05-05 | 931-230-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | HOHENWALD | TN |
| 2016-04-22 | 931-255-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | BAXTER | TN |
| 2016-04-21 | 931-651-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | COOKEVILLE | TN |
| 2016-04-20 | 931-321-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | LAWRENCEBG | TN |
| 2016-04-18 | 931-557-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | FAYETTEVL | TN |
| 2016-04-07 | 931-322-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MONTEREY | TN |
| 2016-04-06 | 931-214-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | GAINESBORO | TN |
| 2016-04-01 | 931-351-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | ESTILL SPG | TN |
| 2016-03-25 | 931-534-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | 7977 | DOVER | TN |
| 2016-03-25 | 931-820-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | 7977 | SANGO | TN |
| 2016-03-21 | 931-441-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | LYNNVILLE | TN |
| 2016-03-21 | 931-441-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | LYNNVILLE | TN |
| 2016-03-16 | 931-313-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | WINCHESTER | TN |
| 2016-03-16 | 931-464-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | LYNCHBURG | TN |
| 2016-03-15 | 931-464-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | LYNCHBURG | TN |
| 2016-03-15 | 931-464-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | LYNCHBURG | TN |
| 2016-03-15 | 931-499-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | SPRINGHILL | TN |
| 2016-03-15 | 931-499-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | SPRINGHILL | TN |
| 2016-03-15 | 931-567-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | CULLEOKA | TN |
| 2016-03-15 | 931-567-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | CULLEOKA | TN |
| 2016-03-15 | 931-706-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | WILLIAMSPT | TN |
| 2016-03-15 | 931-706-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | WILLIAMSPT | TN |
| 2016-03-14 | 931-240-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | FAYETTEVL | TN |
| 2016-03-14 | 931-240-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | FAYETTEVL | TN |
| 2016-03-14 | 931-288-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | LEWISBURG | TN |
| 2016-03-14 | 931-288-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | LEWISBURG | TN |
| 2016-03-11 | 931-313-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | WINCHESTER | TN |
| 2016-03-11 | 931-313-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | WINCHESTER | TN |
| 2016-03-11 | 931-616-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | MANCHESTER | TN |
| 2016-03-11 | 931-616-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | MANCHESTER | TN |
| 2016-03-09 | 931-330-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | ELKTON | TN |
| 2016-03-09 | 931-330-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | ELKTON | TN |
| 2016-03-09 | 931-410-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | PALMYRA | TN |
| 2016-03-09 | 931-410-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | PALMYRA | TN |
| 2016-03-09 | 931-516-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | CUMBERLDCY | TN |
| 2016-03-09 | 931-682-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | SANTA FE | TN |
| 2016-03-09 | 931-682-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | SANTA FE | TN |
| 2016-03-09 | 931-709-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | W VANLEER | TN |
| 2016-03-09 | 931-709-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | W VANLEER | TN |
| 2016-03-09 | 931-717-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | BLANCHE | TN |
| 2016-03-09 | 931-717-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | BLANCHE | TN |
| 2016-03-09 | 931-805-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | HAMPSHIRE | TN |
| 2016-03-09 | 931-810-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | HUNTLAND | 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.