NumberResearchRecent thousands-block assignments
7 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 325
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 |
|---|---|---|---|---|---|---|---|
| 2022-03-03 | 325-379-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | TOW | TX |
| 2022-03-03 | 325-475-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | LONDON | TX |
| 2022-03-03 | 325-525-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | PAINT ROCK | TX |
| 2022-03-03 | 325-648-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | GOLDTHWAIT | TX |
| 2022-03-03 | 325-667-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | GUSTINE | TX |
| 2022-03-03 | 325-748-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | BLANKET | TX |
| 2022-03-03 | 325-758-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | BRONTE | TX |
| 2022-03-03 | 325-799-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | ROWENA | TX |
| 2022-03-03 | 325-876-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | BARNHART | TX |
| 2022-03-02 | 325-550-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | EDEN | TX |
| 2022-03-02 | 325-739-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | ZEPHYR | TX |
| 2022-03-02 | 325-835-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MERTZON | TX |
| 2022-02-28 | 325-386-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CLYDE | TX |
| 2022-02-18 | 325-255-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | CHRISTOVAL | TX |
| 2022-02-18 | 325-291-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | STERLINGCY | TX |
| 2022-02-18 | 325-328-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | WATER VLY | TX |
| 2022-02-18 | 325-420-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ROBERT LEE | TX |
| 2022-02-18 | 325-440-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CARLSBAD | TX |
| 2022-02-18 | 325-533-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MILES | TX |
| 2022-02-18 | 325-880-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | MENARD | TX |
| 2022-02-15 | 325-324-4XXX | 4000–4999 | Assigned | TWILIO INTERNATIONAL, INC. | 506J | BALLINGER | TX |
| 2022-02-11 | 325-290-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | OZONA | TX |
| 2022-02-11 | 325-323-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | BIG LAKE | TX |
| 2022-02-11 | 325-567-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | BANGS | TX |
| 2022-02-11 | 325-699-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | WINTERS | TX |
| 2022-02-11 | 325-784-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | LK BROWNWD | TX |
| 2022-02-11 | 325-853-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ELDORADO | TX |
| 2022-02-10 | 325-208-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | BALLINGER | TX |
| 2022-02-10 | 325-218-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MASON | TX |
| 2022-02-10 | 325-530-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | SONORA | TX |
| 2022-02-09 | 325-321-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | COMANCHE | TX |
| 2022-02-09 | 325-789-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | JUNCTION | TX |
| 2022-02-02 | 325-352-3XXX | 3000–3999 | Assigned | TWILIO INTERNATIONAL, INC. | 506J | ABILENE | TX |
| 2022-01-21 | 325-718-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | BALLINGER | TX |
| 2022-01-15 | 325-269-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | CLYDE | TX |
| 2022-01-12 | 325-420-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | ROBERT LEE | TX |
| 2022-01-12 | 325-758-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | BRONTE | TX |
| 2022-01-09 | 325-289-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | ABILENE | TX |
| 2022-01-09 | 325-289-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | ABILENE | TX |
| 2022-01-09 | 325-289-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | ABILENE | TX |
| 2022-01-09 | 325-289-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | ABILENE | TX |
| 2021-11-29 | 325-758-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | BRONTE | TX |
| 2021-11-16 | 325-433-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ABILENE | TX |
| 2021-11-16 | 325-433-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ABILENE | TX |
| 2021-11-16 | 325-433-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ABILENE | TX |
| 2021-11-16 | 325-433-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ABILENE | TX |
| 2021-11-16 | 325-433-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ABILENE | TX |
| 2021-11-16 | 325-433-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ABILENE | TX |
| 2021-11-15 | 325-296-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | COLEMAN | TX |
| 2021-11-12 | 325-314-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ANSON | 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.