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 |
|---|---|---|---|---|---|---|---|
| 2006-01-31 | 817-932-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-01-27 | 817-776-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | GRANBURY | TX |
| 2006-01-24 | 817-487-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CLEBURNE | TX |
| 2006-01-24 | 817-487-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CLEBURNE | TX |
| 2006-01-24 | 817-526-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CLEBURNE | TX |
| 2006-01-18 | 817-653-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GLENDALE | TX |
| 2006-01-18 | 817-739-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-01-18 | 817-945-0XXX | 0000–0999 | Assigned | MILLENNIUM TELCOM, LLC DBA ONESOURCE COMM. - TX | 4009 | FORT WORTH | TX |
| 2006-01-18 | 817-965-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-01-17 | 817-422-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ARLINGTON | TX |
| 2006-01-17 | 817-422-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ARLINGTON | TX |
| 2006-01-17 | 817-776-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | GRANBURY | TX |
| 2006-01-17 | 817-807-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ARLINGTON | TX |
| 2006-01-09 | 817-507-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-01-09 | 817-507-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-01-09 | 817-507-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-01-09 | 817-507-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-01-09 | 817-507-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-01-09 | 817-586-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-01-09 | 817-647-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-01-09 | 817-709-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2005-12-29 | 817-225-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | MANSFIELD | TX |
| 2005-12-29 | 817-305-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | GRAPEVINE | TX |
| 2005-12-29 | 817-305-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | GRAPEVINE | TX |
| 2005-12-29 | 817-305-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | GRAPEVINE | TX |
| 2005-12-29 | 817-374-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | WEATHERFD | TX |
| 2005-12-29 | 817-374-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | WEATHERFD | TX |
| 2005-12-29 | 817-374-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | WEATHERFD | TX |
| 2005-12-29 | 817-500-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | NRICHLDHLS | TX |
| 2005-12-29 | 817-500-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | NRICHLDHLS | TX |
| 2005-12-29 | 817-500-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | NRICHLDHLS | TX |
| 2005-12-28 | 817-374-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WEATHERFD | TX |
| 2005-12-28 | 817-374-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WEATHERFD | TX |
| 2005-12-21 | 817-422-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ARLINGTON | TX |
| 2005-12-21 | 817-983-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX |
| 2005-12-21 | 817-983-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX |
| 2005-12-16 | 817-709-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2005-12-16 | 817-709-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2005-12-16 | 817-709-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2005-12-16 | 817-709-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2005-12-16 | 817-733-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2005-12-13 | 817-771-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | WEATHERFD | TX |
| 2005-11-30 | 817-983-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ARLINGTON | TX |
| 2005-11-30 | 817-983-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ARLINGTON | TX |
| 2005-11-22 | 817-814-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | FORT WORTH | TX |
| 2005-11-22 | 817-814-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | FORT WORTH | TX |
| 2005-11-22 | 817-814-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | FORT WORTH | TX |
| 2005-11-22 | 817-814-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | FORT WORTH | TX |
| 2005-11-22 | 817-814-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | FORT WORTH | TX |
| 2005-11-22 | 817-814-5XXX | 5000–5999 | 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.