NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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, all time — NPA 325
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-02-10 | 325-291-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | STERLINGCY | TX |
| 2025-02-10 | 325-291-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | STERLINGCY | TX |
| 2025-02-10 | 325-328-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | WATER VLY | TX |
| 2025-02-10 | 325-328-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WATER VLY | TX |
| 2025-02-10 | 325-363-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | SWEETWATER | TX |
| 2025-02-10 | 325-363-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | SWEETWATER | TX |
| 2025-02-10 | 325-379-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | TOW | TX |
| 2025-02-10 | 325-379-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | TOW | TX |
| 2025-02-10 | 325-384-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | WINTERS | TX |
| 2025-02-10 | 325-384-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | WINTERS | TX |
| 2025-02-10 | 325-385-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ZEPHYR | TX |
| 2025-02-10 | 325-385-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | ZEPHYR | TX |
| 2025-02-10 | 325-644-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | WESTBROOK | TX |
| 2025-02-10 | 325-644-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | WESTBROOK | TX |
| 2025-02-05 | 325-209-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ALBANY | TX |
| 2025-02-05 | 325-209-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | ALBANY | TX |
| 2025-02-05 | 325-255-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | CHRISTOVAL | TX |
| 2025-02-05 | 325-293-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SNYDER | TX |
| 2025-02-05 | 325-293-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | SNYDER | TX |
| 2025-02-05 | 325-316-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | COLORADOCY | TX |
| 2025-02-05 | 325-316-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | COLORADOCY | TX |
| 2025-02-05 | 325-323-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | BIG LAKE | TX |
| 2025-02-05 | 325-323-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | BIG LAKE | TX |
| 2025-02-05 | 325-324-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | BALLINGER | TX |
| 2025-02-05 | 325-324-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | BALLINGER | TX |
| 2025-02-05 | 325-329-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | COMANCHE | TX |
| 2025-02-05 | 325-329-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | COMANCHE | TX |
| 2025-02-05 | 325-342-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | OZONA | TX |
| 2025-02-05 | 325-342-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | OZONA | TX |
| 2025-02-05 | 325-343-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | ROBERT LEE | TX |
| 2025-02-05 | 325-343-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ROBERT LEE | TX |
| 2025-02-05 | 325-353-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | EDEN | TX |
| 2025-02-05 | 325-353-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | EDEN | TX |
| 2025-02-05 | 325-354-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SONORA | TX |
| 2025-02-05 | 325-354-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | SONORA | TX |
| 2025-02-05 | 325-359-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | HAMLIN | TX |
| 2025-02-05 | 325-359-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | HAMLIN | TX |
| 2025-02-05 | 325-360-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | BRONTE | TX |
| 2025-02-05 | 325-360-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | BRONTE | TX |
| 2025-02-05 | 325-362-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | BANGS | TX |
| 2025-02-05 | 325-362-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | BANGS | TX |
| 2025-02-05 | 325-364-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | BARNHART | TX |
| 2025-02-05 | 325-364-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | BARNHART | TX |
| 2025-02-05 | 325-366-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | BLANKET | TX |
| 2025-02-05 | 325-366-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | BLANKET | TX |
| 2025-02-05 | 325-367-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CARLSBAD | TX |
| 2025-02-05 | 325-367-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | CARLSBAD | TX |
| 2025-02-05 | 325-368-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ROSCOE | TX |
| 2025-02-05 | 325-368-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | ROSCOE | TX |
| 2025-02-05 | 325-369-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ELDORADO | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.