NumberResearchRecent thousands-block assignments
3 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 817
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 |
|---|---|---|---|---|---|---|---|
| 2006-12-06 | 817-879-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-12-06 | 817-879-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-12-06 | 817-879-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-12-06 | 817-879-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-12-06 | 817-879-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-11-27 | 817-386-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2006-11-27 | 817-851-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | GLENDALE | TX |
| 2006-11-22 | 817-400-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | GRAPEVINE | TX |
| 2006-11-22 | 817-400-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | GRAPEVINE | TX |
| 2006-11-22 | 817-400-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | GRAPEVINE | TX |
| 2006-11-22 | 817-400-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | GRAPEVINE | TX |
| 2006-11-22 | 817-400-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | GRAPEVINE | TX |
| 2006-11-22 | 817-400-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | GRAPEVINE | TX |
| 2006-11-22 | 817-400-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | GRAPEVINE | TX |
| 2006-11-22 | 817-400-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | GRAPEVINE | TX |
| 2006-11-22 | 817-400-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | GRAPEVINE | TX |
| 2006-11-22 | 817-400-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | GRAPEVINE | TX |
| 2006-11-22 | 817-770-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | NRICHLDHLS | TX |
| 2006-11-22 | 817-770-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | NRICHLDHLS | TX |
| 2006-11-22 | 817-770-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | NRICHLDHLS | TX |
| 2006-11-22 | 817-770-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | NRICHLDHLS | TX |
| 2006-11-22 | 817-770-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | NRICHLDHLS | TX |
| 2006-11-20 | 817-517-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | CLEBURNE | TX |
| 2006-11-09 | 817-526-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CLEBURNE | TX |
| 2006-11-09 | 817-757-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WEATHERFD | TX |
| 2006-11-09 | 817-964-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GRANBURY | TX |
| 2006-11-08 | 817-217-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ARLINGTON | TX |
| 2006-11-08 | 817-310-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | GRAPEVINE | TX |
| 2006-11-08 | 817-945-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | FORT WORTH | TX |
| 2006-11-08 | 817-945-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | FORT WORTH | TX |
| 2006-11-06 | 817-386-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2006-10-23 | 817-420-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2006-10-23 | 817-986-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2006-10-23 | 817-986-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2006-10-23 | 817-986-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2006-10-23 | 817-986-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2006-10-23 | 817-986-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2006-10-23 | 817-986-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2006-10-23 | 817-986-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2006-10-23 | 817-986-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2006-10-23 | 817-986-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2006-10-06 | 817-702-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | FORT WORTH | TX |
| 2006-10-06 | 817-702-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | FORT WORTH | TX |
| 2006-10-06 | 817-702-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | FORT WORTH | TX |
| 2006-10-06 | 817-702-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | FORT WORTH | TX |
| 2006-10-06 | 817-702-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | FORT WORTH | TX |
| 2006-10-06 | 817-702-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | FORT WORTH | TX |
| 2006-10-06 | 817-702-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | FORT WORTH | TX |
| 2006-10-06 | 817-702-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | FORT WORTH | TX |
| 2006-10-06 | 817-702-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | FORT WORTH | TX |
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.