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 |
|---|---|---|---|---|---|---|---|
| 2005-02-22 | 931-561-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CLARKSVL | TN |
| 2005-02-22 | 931-561-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CLARKSVL | TN |
| 2005-02-22 | 931-561-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CLARKSVL | TN |
| 2005-02-22 | 931-561-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CLARKSVL | TN |
| 2005-02-22 | 931-561-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CLARKSVL | TN |
| 2005-02-22 | 931-636-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | WINCHESTER | TN |
| 2005-02-14 | 931-269-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | SUMMERTOWN | TN |
| 2005-02-14 | 931-536-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | SHELBYVL | TN |
| 2005-02-10 | 931-538-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | CLARKSVL | TN |
| 2005-01-31 | 931-538-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | CLARKSVL | TN |
| 2005-01-31 | 931-548-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | COLUMBIA | TN |
| 2005-01-31 | 931-563-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | TULLAHOMA | TN |
| 2005-01-18 | 931-622-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | WAVERLY | TN |
| 2005-01-18 | 931-622-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | WAVERLY | TN |
| 2005-01-18 | 931-623-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | LYLES | TN |
| 2005-01-18 | 931-628-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | HOHENWALD | TN |
| 2005-01-18 | 931-628-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | HOHENWALD | TN |
| 2004-12-21 | 931-584-9XXX | 9000–9999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | MONTEREY | TN |
| 2004-12-07 | 931-539-9XXX | 9000–9999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | BAXTER | TN |
| 2004-12-02 | 931-220-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CLARKSVL | TN |
| 2004-12-02 | 931-231-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | LAWRENCEBG | TN |
| 2004-12-02 | 931-636-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | WINCHESTER | TN |
| 2004-11-24 | 931-231-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | LAWRENCEBG | TN |
| 2004-11-24 | 931-771-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | SOOAKGROVE | TN |
| 2004-11-24 | 931-994-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | CENTERVL | TN |
| 2004-11-24 | 931-996-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | LYLES | TN |
| 2004-11-16 | 931-237-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CLARKSVL | TN |
| 2004-11-12 | 931-338-8XXX | 8000–8999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | CLARKSVL | TN |
| 2004-11-11 | 931-538-0XXX | 0000–0999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | CLARKSVL | TN |
| 2004-11-03 | 931-516-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | CUMBERLDCY | TN |
| 2004-11-02 | 931-683-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | CULLEOKA | TN |
| 2004-11-02 | 931-805-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | HAMPSHIRE | TN |
| 2004-11-02 | 931-813-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | WARTRACE | TN |
| 2004-10-25 | 931-588-7XXX | 7000–7999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | TULLAHOMA | TN |
| 2004-10-21 | 931-325-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | MTPLEASANT | TN |
| 2004-10-21 | 931-326-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | PALMYRA | TN |
| 2004-10-21 | 931-362-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | FREDONIA | TN |
| 2004-10-21 | 931-368-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | SANGO | TN |
| 2004-10-21 | 931-413-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | CUNNINGHAM | TN |
| 2004-10-21 | 931-442-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | SANTA FE | TN |
| 2004-10-21 | 931-451-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | SPRINGHILL | TN |
| 2004-10-21 | 931-570-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | MANCHESTER | TN |
| 2004-10-21 | 931-576-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | WILLIAMSPT | TN |
| 2004-10-12 | 931-220-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CLARKSVL | TN |
| 2004-10-12 | 931-220-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CLARKSVL | TN |
| 2004-10-12 | 931-231-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | LAWRENCEBG | TN |
| 2004-10-12 | 931-231-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | LAWRENCEBG | TN |
| 2004-10-12 | 931-638-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PULASKI | TN |
| 2004-08-27 | 931-210-1XXX | 1000–1999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | CROSSVILLE | TN |
| 2004-08-26 | 931-222-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | TULLAHOMA | 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.