NumberResearchRecent thousands-block assignments
5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 |
|---|---|---|---|---|---|---|---|
| 2026-09-10 | 731-272-3XXX | 3000–3999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | RIPLEY | TN |
| 2026-09-10 | 731-287-6XXX | 6000–6999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | DYERSBURG | TN |
| 2026-09-10 | 731-991-7XXX | 7000–7999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | UNION CITY | TN |
| 2026-08-26 | 731-928-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | JACKSON | TN |
| 2026-08-25 | 731-262-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | PARIS | TN |
| 2026-08-20 | 731-200-7XXX | 7000–7999 | Assigned | OPENTACT INC. | 824J | TRENTON | TN |
| 2026-08-13 | 731-331-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | BOLIVAR | TN |
| 2026-07-30 | 731-268-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | CAMDEN | TN |
| 2026-07-30 | 731-519-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | BROWNSVL | TN |
| 2026-07-28 | 731-467-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | JACKSON | TN |
| 2026-07-28 | 731-574-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | JACKSON | TN |
| 2026-07-28 | 731-574-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | JACKSON | TN |
| 2026-07-23 | 731-295-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MILAN | TN |
| 2026-07-09 | 731-266-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | SAVANNAH | TN |
| 2026-07-08 | 731-246-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | UNION CITY | TN |
| 2026-07-07 | 731-242-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | HUNTINGDON | TN |
| 2026-07-02 | 731-465-8XXX | 8000–8999 | Assigned | OPENTACT INC. | 824J | JACKSON | TN |
| 2026-06-30 | 731-268-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | CAMDEN | TN |
| 2026-06-30 | 731-269-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | BROWNSVL | TN |
| 2026-06-30 | 731-331-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | BOLIVAR | TN |
| 2026-06-05 | 731-891-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JACKSON | TN |
| 2026-06-02 | 731-510-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | ADAMSVILLE | TN |
| 2026-06-01 | 731-294-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | HUMBOLDT | TN |
| 2026-06-01 | 731-633-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | JACKSON | TN |
| 2026-06-01 | 731-910-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | PARIS | TN |
| 2026-05-19 | 731-289-2XXX | 2000–2999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEDINA | TN |
| 2026-05-19 | 731-289-6XXX | 6000–6999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEDINA | TN |
| 2026-05-18 | 731-294-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | HUMBOLDT | TN |
| 2026-05-12 | 731-928-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | JACKSON | TN |
| 2026-05-07 | 731-272-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | RIPLEY | TN |
| 2026-05-07 | 731-844-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | HENDERSON | TN |
| 2026-05-01 | 731-500-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | PARSONS | TN |
| 2026-04-29 | 731-233-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | GREENFIELD | TN |
| 2026-04-29 | 731-666-3XXX | 3000–3999 | Assigned | AHOI LLC | 883K | CAMDEN | TN |
| 2026-04-29 | 731-766-3XXX | 3000–3999 | Assigned | AHOI LLC | 883K | TRENTON | TN |
| 2026-04-27 | 731-240-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | JACKSON | TN |
| 2026-04-27 | 731-281-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | MARTIN | TN |
| 2026-04-21 | 731-931-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | DYERSBURG | TN |
| 2026-04-08 | 731-262-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | PARIS | TN |
| 2026-04-07 | 731-461-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ALAMO | TN |
| 2026-04-07 | 731-636-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MARTIN | TN |
| 2026-04-07 | 731-742-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BRADFORD | TN |
| 2026-03-11 | 731-793-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | HUNTINGDON | TN |
| 2026-03-10 | 731-951-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | JACKSON | TN |
| 2026-03-10 | 731-951-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | JACKSON | TN |
| 2026-03-10 | 731-951-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | JACKSON | TN |
| 2026-02-26 | 731-633-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | JACKSON | TN |
| 2026-02-19 | 731-500-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | PARSONS | TN |
| 2026-01-28 | 731-226-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JACKSON | TN |
| 2026-01-27 | 731-294-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | HUMBOLDT | TN |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.