NumberResearchRecent thousands-block assignments
5 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 731
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 |
|---|---|---|---|---|---|---|---|
| 2016-05-20 | 731-891-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | JACKSON | TN |
| 2016-05-20 | 731-891-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | JACKSON | TN |
| 2016-05-20 | 731-891-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | JACKSON | TN |
| 2016-05-10 | 731-224-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | HALLS | TN |
| 2016-05-10 | 731-224-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | HALLS | TN |
| 2016-05-10 | 731-260-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | HENNING | TN |
| 2016-05-10 | 731-260-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | HENNING | TN |
| 2016-05-10 | 731-595-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | HENDERSON | TN |
| 2016-05-10 | 731-595-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | HENDERSON | TN |
| 2016-05-10 | 731-747-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | HUMBOLDT | TN |
| 2016-05-10 | 731-747-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | HUMBOLDT | TN |
| 2016-05-10 | 731-747-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | HUMBOLDT | TN |
| 2016-05-09 | 731-236-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | GRAND JCT | TN |
| 2016-05-09 | 731-236-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | GRAND JCT | TN |
| 2016-05-09 | 731-678-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | GREENFIELD | TN |
| 2016-05-09 | 731-678-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | GREENFIELD | TN |
| 2016-05-06 | 731-474-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | GIBSON | TN |
| 2016-05-06 | 731-777-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | DYERSBURG | TN |
| 2016-05-06 | 731-777-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | DYERSBURG | TN |
| 2016-05-06 | 731-777-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | DYERSBURG | TN |
| 2016-05-05 | 731-201-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | BIG SANDY | TN |
| 2016-05-05 | 731-201-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | BIG SANDY | TN |
| 2016-05-05 | 731-741-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | BROWNSVL | TN |
| 2016-05-05 | 731-741-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | BROWNSVL | TN |
| 2016-05-04 | 731-501-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | BELLS | TN |
| 2016-05-04 | 731-501-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | BELLS | TN |
| 2016-05-02 | 731-727-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SAVANNAH | TN |
| 2016-04-22 | 731-467-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | JACKSON | TN |
| 2016-04-20 | 731-254-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | WHITEVILLE | TN |
| 2016-04-20 | 731-316-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | LEXINGTON | TN |
| 2016-04-14 | 731-443-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | BROWNSVL | TN |
| 2016-04-14 | 731-777-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | DYERSBURG | TN |
| 2016-04-07 | 731-777-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF TENNESSEE, LLC - TN | 276F | DYERSBURG | TN |
| 2016-03-25 | 731-982-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SELMER | TN |
| 2016-03-25 | 731-982-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SELMER | TN |
| 2016-03-23 | 731-497-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | RIDGELY | TN |
| 2016-03-23 | 731-497-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | RIDGELY | TN |
| 2016-03-18 | 731-312-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | CEDARGROVE | TN |
| 2016-03-18 | 731-312-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | CEDARGROVE | TN |
| 2016-03-17 | 731-201-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | BIG SANDY | TN |
| 2016-03-17 | 731-201-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | BIG SANDY | TN |
| 2016-03-16 | 731-316-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | LEXINGTON | TN |
| 2016-03-16 | 731-316-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | LEXINGTON | TN |
| 2016-03-16 | 731-749-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | KENTON | TN |
| 2016-03-16 | 731-937-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | KENTON | TN |
| 2016-03-15 | 731-253-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | TIPTONVL | TN |
| 2016-03-15 | 731-310-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | TROY | TN |
| 2016-03-15 | 731-310-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | TROY | TN |
| 2016-03-15 | 731-330-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | TRENTON | TN |
| 2016-03-15 | 731-330-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | TRENTON | 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.