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 |
|---|---|---|---|---|---|---|---|
| 2007-05-29 | 817-200-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ARLINGTON | TX |
| 2007-05-03 | 817-386-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2007-04-25 | 817-217-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | ARLINGTON | TX |
| 2007-04-25 | 817-217-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | ARLINGTON | TX |
| 2007-04-25 | 817-217-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | ARLINGTON | TX |
| 2007-04-25 | 817-217-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | ARLINGTON | TX |
| 2007-04-25 | 817-353-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-25 | 817-353-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-25 | 817-376-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | ARLINGTON | TX |
| 2007-04-25 | 817-378-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-25 | 817-443-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-25 | 817-566-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-25 | 817-615-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-25 | 817-877-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-25 | 817-877-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-25 | 817-884-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-25 | 817-885-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-13 | 817-412-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ARLINGTON | TX |
| 2007-04-13 | 817-524-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ARLINGTON | TX |
| 2007-04-13 | 817-766-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NRICHLDHLS | TX |
| 2007-04-13 | 817-766-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NRICHLDHLS | TX |
| 2007-04-06 | 817-357-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CLEBURNE | TX |
| 2007-04-06 | 817-458-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WEATHERFD | TX |
| 2007-04-04 | 817-439-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FORT WORTH | TX |
| 2007-04-04 | 817-439-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FORT WORTH | TX |
| 2007-04-04 | 817-653-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GLENDALE | TX |
| 2007-04-02 | 817-566-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-02 | 817-566-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-02 | 817-566-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-02 | 817-615-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-02 | 817-615-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-02 | 817-655-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-02 | 817-655-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-02 | 817-655-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-02 | 817-655-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-02 | 817-655-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2007-04-02 | 817-724-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | GRAPEVINE | TX |
| 2007-04-02 | 817-724-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | GRAPEVINE | TX |
| 2007-04-02 | 817-779-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | MANSFIELD | TX |
| 2007-03-16 | 817-479-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NRICHLDHLS | TX |
| 2007-02-27 | 817-682-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2007-02-27 | 817-888-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2007-02-27 | 817-889-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2007-02-13 | 817-526-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | CLEBURNE | TX |
| 2007-02-13 | 817-526-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | CLEBURNE | TX |
| 2007-02-13 | 817-526-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CLEBURNE | TX |
| 2007-02-12 | 817-718-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2007-02-12 | 817-718-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2007-02-12 | 817-718-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2007-02-12 | 817-718-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | 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.