NumberResearchRecent thousands-block assignments
2 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 915
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 |
|---|---|---|---|---|---|---|---|
| 2015-06-22 | 915-270-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | EL PASO | TX |
| 2015-06-22 | 915-270-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | EL PASO | TX |
| 2015-06-22 | 915-270-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | EL PASO | TX |
| 2015-06-19 | 915-706-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EL PASO | TX |
| 2015-06-19 | 915-706-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EL PASO | TX |
| 2015-05-06 | 915-218-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | EL PASO | TX |
| 2015-04-13 | 915-314-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | VINTON | TX |
| 2015-04-10 | 915-314-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | VINTON | TX |
| 2015-04-09 | 915-275-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-04-09 | 915-275-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-04-09 | 915-275-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-04-09 | 915-275-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-04-09 | 915-275-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | EL PASO | TX |
| 2015-04-09 | 915-706-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-04-09 | 915-706-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-04-09 | 915-706-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-04-09 | 915-706-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-04-08 | 915-260-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-04-08 | 915-260-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-04-08 | 915-260-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-04-02 | 915-303-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | EL PASO | TX |
| 2015-04-01 | 915-671-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CANUTILLO | TX |
| 2015-03-20 | 915-275-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EL PASO | TX |
| 2015-03-20 | 915-275-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EL PASO | TX |
| 2015-03-20 | 915-333-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FT HANCOCK | TX |
| 2015-03-20 | 915-765-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | FABENS | TX |
| 2015-03-13 | 915-218-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | EL PASO | TX |
| 2015-02-24 | 915-303-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-02-24 | 915-702-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-02-24 | 915-702-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-02-24 | 915-702-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-02-24 | 915-702-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-02-24 | 915-702-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-02-24 | 915-702-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-02-19 | 915-702-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EL PASO | TX |
| 2015-02-19 | 915-702-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EL PASO | TX |
| 2015-02-16 | 915-303-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | EL PASO | TX |
| 2015-02-16 | 915-303-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | EL PASO | TX |
| 2015-02-16 | 915-303-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | EL PASO | TX |
| 2015-02-16 | 915-303-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | EL PASO | TX |
| 2015-02-16 | 915-702-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | EL PASO | TX |
| 2015-02-13 | 915-267-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CLINT | TX |
| 2015-02-09 | 915-702-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | EL PASO | TX |
| 2015-02-06 | 915-704-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | EL PASO | TX |
| 2015-01-28 | 915-267-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | CLINT | TX |
| 2015-01-27 | 915-303-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EL PASO | TX |
| 2015-01-27 | 915-303-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EL PASO | TX |
| 2015-01-23 | 915-303-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | EL PASO | TX |
| 2015-01-19 | 915-304-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | EL PASO | TX |
| 2015-01-13 | 915-304-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EL PASO | 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.