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 361
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-02-28 | 361-370-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MATHIS | TX |
| 2025-02-28 | 361-372-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WOODSBORO | TX |
| 2025-02-28 | 361-377-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | SKIDMORE | TX |
| 2025-02-28 | 361-378-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | REFUGIO | TX |
| 2025-02-28 | 361-397-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SINTON | TX |
| 2025-02-28 | 361-398-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | VICTORIA | TX |
| 2025-02-28 | 361-423-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MOULTON | TX |
| 2025-02-28 | 361-741-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | YOAKUM | TX |
| 2025-02-28 | 361-867-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | PADRE IS | TX |
| 2025-02-28 | 361-899-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | SAN DIEGO | TX |
| 2025-02-28 | 361-938-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | NORDHEIM | TX |
| 2025-02-28 | 361-990-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | SHINER | TX |
| 2025-02-20 | 361-380-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | KINGSVILLE | TX |
| 2025-02-20 | 361-645-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | GOLIAD | TX |
| 2025-02-20 | 361-733-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | HALLETTSVL | TX |
| 2025-02-19 | 361-307-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | CUERO | TX |
| 2025-02-19 | 361-308-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | EDNA | TX |
| 2025-02-19 | 361-317-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | CALALLEN | TX |
| 2025-02-19 | 361-391-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | C CHRISTI | TX |
| 2025-02-19 | 361-391-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | C CHRISTI | TX |
| 2025-02-19 | 361-395-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | FREER | TX |
| 2025-02-19 | 361-431-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | FLOURBLUFF | TX |
| 2025-02-19 | 361-472-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | CLARKWOOD | TX |
| 2025-02-19 | 361-831-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | FLATONIA | TX |
| 2023-12-05 | 361-281-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | C CHRISTI | TX |
| 2023-12-05 | 361-281-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | C CHRISTI | TX |
| 2020-09-29 | 361-267-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | C CHRISTI | 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.