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 |
|---|---|---|---|---|---|---|---|
| 2015-10-01 | 931-813-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | WARTRACE | TN |
| 2015-09-30 | 931-315-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HILLSBORO | TN |
| 2015-09-25 | 931-256-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SPARTA | TN |
| 2015-09-25 | 931-304-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MCMINNVL | TN |
| 2015-09-24 | 931-954-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | MANCHESTER | TN |
| 2015-09-23 | 931-922-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | COLUMBIA | TN |
| 2015-09-22 | 931-410-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | PALMYRA | TN |
| 2015-09-14 | 931-939-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CENTERTOWN | TN |
| 2015-09-11 | 931-240-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | FAYETTEVL | TN |
| 2015-09-11 | 931-347-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | PULASKI | TN |
| 2015-09-11 | 931-576-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | WILLIAMSPT | TN |
| 2015-09-11 | 931-603-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | FREDONIA | TN |
| 2015-09-11 | 931-774-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MTPLEASANT | TN |
| 2015-09-09 | 931-800-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | TULLAHOMA | TN |
| 2015-08-28 | 931-230-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | HOHENWALD | TN |
| 2015-08-28 | 931-442-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | SANTA FE | TN |
| 2015-08-25 | 931-254-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | SPENCER | TN |
| 2015-08-06 | 931-214-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | GAINESBORO | TN |
| 2015-08-04 | 931-401-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | CLARKSVL | TN |
| 2015-06-24 | 931-401-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CLARKSVL | TN |
| 2015-06-22 | 931-774-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MTPLEASANT | TN |
| 2015-06-12 | 931-401-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CLARKSVL | TN |
| 2015-06-12 | 931-401-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CLARKSVL | TN |
| 2015-06-12 | 931-401-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CLARKSVL | TN |
| 2015-06-01 | 931-771-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | SOOAKGROVE | TN |
| 2015-06-01 | 931-820-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | SANGO | TN |
| 2015-05-29 | 931-218-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | CLARKSVL | TN |
| 2015-05-29 | 931-330-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | ELKTON | TN |
| 2015-05-27 | 931-208-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MCEWEN | TN |
| 2015-05-27 | 931-269-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | SUMMERTOWN | TN |
| 2015-05-27 | 931-299-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | WAVERLY | TN |
| 2015-05-27 | 931-313-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | WINCHESTER | TN |
| 2015-05-27 | 931-431-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | SOOAKGROVE | TN |
| 2015-05-27 | 931-492-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | SHELBYVL | TN |
| 2015-05-26 | 931-246-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | LEWISBURG | TN |
| 2015-05-26 | 931-305-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | DOVER | TN |
| 2015-05-26 | 931-321-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | LAWRENCEBG | TN |
| 2015-05-26 | 931-321-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | LAWRENCEBG | TN |
| 2015-05-26 | 931-450-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MANCHESTER | TN |
| 2015-05-26 | 931-452-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | LYNNVILLE | TN |
| 2015-05-26 | 931-632-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | LYNCHBURG | TN |
| 2015-05-19 | 931-650-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | COOKEVILLE | TN |
| 2015-05-18 | 931-202-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | CROSSVILLE | TN |
| 2015-05-15 | 931-389-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | WARTRACE | TN |
| 2015-05-15 | 931-486-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | SPRINGHILL | TN |
| 2015-05-15 | 931-701-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | LYLES | TN |
| 2015-04-17 | 931-218-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | CLARKSVL | TN |
| 2015-04-16 | 931-807-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | NORMANDY | TN |
| 2015-04-15 | 931-208-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | MCEWEN | TN |
| 2015-04-15 | 931-300-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | 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.