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 |
|---|---|---|---|---|---|---|---|
| 2022-06-07 | 731-798-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LEXINGTON | TN |
| 2022-06-03 | 731-630-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | BROWNSVL | TN |
| 2022-05-27 | 731-292-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-05-27 | 731-292-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-05-27 | 731-292-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-05-27 | 731-292-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-05-27 | 731-292-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-05-27 | 731-292-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-05-27 | 731-292-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-05-27 | 731-292-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-05-27 | 731-292-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-05-27 | 731-292-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-05-27 | 731-543-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-05-27 | 731-924-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-05-18 | 731-246-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2022-05-18 | 731-592-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2022-05-11 | 731-434-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | SELMER | TN |
| 2022-04-21 | 731-737-1XXX | 1000–1999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | DYERSBURG | TN |
| 2022-04-21 | 731-931-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | DYERSBURG | TN |
| 2022-04-07 | 731-543-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-04-07 | 731-543-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-04-07 | 731-543-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-04-07 | 731-543-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-04-07 | 731-543-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-04-07 | 731-543-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-04-07 | 731-543-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-04-07 | 731-543-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PARIS | TN |
| 2022-04-05 | 731-891-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | JACKSON | TN |
| 2022-03-28 | 731-507-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2022-03-28 | 731-507-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2022-03-23 | 731-460-3XXX | 3000–3999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | RIPLEY | TN |
| 2022-03-23 | 731-671-0XXX | 0000–0999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | RIPLEY | TN |
| 2022-03-23 | 731-991-3XXX | 3000–3999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | UNION CITY | TN |
| 2022-03-23 | 731-991-4XXX | 4000–4999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | UNION CITY | TN |
| 2022-03-23 | 731-991-5XXX | 5000–5999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | UNION CITY | TN |
| 2022-03-23 | 731-991-6XXX | 6000–6999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | UNION CITY | TN |
| 2022-03-22 | 731-529-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MICHIE | TN |
| 2022-03-09 | 731-844-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | HENDERSON | TN |
| 2022-03-07 | 731-734-5XXX | 5000–5999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | BROWNSVL | TN |
| 2022-03-07 | 731-734-6XXX | 6000–6999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | BROWNSVL | TN |
| 2022-03-07 | 731-741-1XXX | 1000–1999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | BROWNSVL | TN |
| 2022-03-07 | 731-741-2XXX | 2000–2999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | BROWNSVL | TN |
| 2022-03-07 | 731-741-5XXX | 5000–5999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | BROWNSVL | TN |
| 2022-03-07 | 731-741-6XXX | 6000–6999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | BROWNSVL | TN |
| 2022-03-04 | 731-737-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | DYERSBURG | TN |
| 2022-03-02 | 731-600-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | MCKENZIE | TN |
| 2022-03-02 | 731-931-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | DYERSBURG | TN |
| 2022-03-02 | 731-931-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | DYERSBURG | TN |
| 2022-02-24 | 731-273-4XXX | 4000–4999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | HUMBOLDT | TN |
| 2022-02-24 | 731-273-5XXX | 5000–5999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | HUMBOLDT | 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.