NumberResearchRecent thousands-block assignments
13 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 423
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 |
|---|---|---|---|---|---|---|---|
| 2022-11-15 | 423-850-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | JONESBORO | TN |
| 2022-11-14 | 423-275-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | CHATTNOOGA | TN |
| 2022-11-14 | 423-275-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | CHATTNOOGA | TN |
| 2022-11-14 | 423-275-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | CHATTNOOGA | TN |
| 2022-11-14 | 423-275-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | CHATTNOOGA | TN |
| 2022-11-10 | 423-672-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSON CY | TN |
| 2022-11-10 | 423-672-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSON CY | TN |
| 2022-11-10 | 423-705-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSON CY | TN |
| 2022-11-10 | 423-796-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSON CY | TN |
| 2022-11-10 | 423-796-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSON CY | TN |
| 2022-11-10 | 423-796-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSON CY | TN |
| 2022-11-10 | 423-796-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSON CY | TN |
| 2022-11-10 | 423-796-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSON CY | TN |
| 2022-11-10 | 423-853-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSON CY | TN |
| 2022-11-10 | 423-853-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSON CY | TN |
| 2022-11-10 | 423-853-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSON CY | TN |
| 2022-11-10 | 423-853-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSON CY | TN |
| 2022-11-10 | 423-853-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSON CY | TN |
| 2022-11-10 | 423-853-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSON CY | TN |
| 2022-11-10 | 423-853-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSON CY | TN |
| 2022-11-09 | 423-527-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | SODDYDAISY | TN |
| 2022-11-09 | 423-527-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | SODDYDAISY | TN |
| 2022-11-08 | 423-513-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | VONORE | TN |
| 2022-11-04 | 423-395-8XXX | 8000–8999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | ATHENS | TN |
| 2022-11-04 | 423-395-9XXX | 9000–9999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | ATHENS | TN |
| 2022-11-03 | 423-515-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | SO PITTSBG | TN |
| 2022-11-03 | 423-515-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | SO PITTSBG | TN |
| 2022-11-03 | 423-691-2XXX | 2000–2999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | ATHENS | TN |
| 2022-11-03 | 423-691-5XXX | 5000–5999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | ATHENS | TN |
| 2022-11-03 | 423-691-6XXX | 6000–6999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | ATHENS | TN |
| 2022-11-03 | 423-691-7XXX | 7000–7999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | ATHENS | TN |
| 2022-11-03 | 423-691-8XXX | 8000–8999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | ATHENS | TN |
| 2022-11-02 | 423-565-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | DECATUR | TN |
| 2022-11-02 | 423-601-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | BULLS GAP | TN |
| 2022-11-02 | 423-601-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | BULLS GAP | TN |
| 2022-10-31 | 423-694-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | SWEETWATER | TN |
| 2022-10-31 | 423-801-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | CUMBERLDGP | TN |
| 2022-10-31 | 423-801-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | CUMBERLDGP | TN |
| 2022-10-25 | 423-216-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | BENTON | TN |
| 2022-10-25 | 423-219-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | CHARLESTON | TN |
| 2022-10-25 | 423-380-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | CLEVELAND | TN |
| 2022-10-17 | 423-459-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHATTNOOGA | TN |
| 2022-10-17 | 423-860-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHATTNOOGA | TN |
| 2022-10-17 | 423-860-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHATTNOOGA | TN |
| 2022-10-17 | 423-860-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHATTNOOGA | TN |
| 2022-10-17 | 423-860-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHATTNOOGA | TN |
| 2022-10-17 | 423-860-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHATTNOOGA | TN |
| 2022-10-17 | 423-860-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHATTNOOGA | TN |
| 2022-10-17 | 423-860-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHATTNOOGA | TN |
| 2022-10-17 | 423-860-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHATTNOOGA | 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.