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 956
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 |
|---|---|---|---|---|---|---|---|
| 2025-04-07 | 956-209-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | MISSION | TX |
| 2025-04-07 | 956-209-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | MISSION | TX |
| 2025-04-07 | 956-453-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | HARLINGEN | TX |
| 2025-04-07 | 956-453-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | HARLINGEN | TX |
| 2025-04-07 | 956-719-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | RIO HONDO | TX |
| 2025-04-07 | 956-719-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | RIO HONDO | TX |
| 2025-04-07 | 956-741-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | MERCEDES | TX |
| 2025-04-07 | 956-741-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | MERCEDES | TX |
| 2025-04-07 | 956-745-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | FALCON HTS | TX |
| 2025-04-07 | 956-745-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | FALCON HTS | TX |
| 2025-04-07 | 956-761-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | PORTISABEL | TX |
| 2025-04-07 | 956-788-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | SAN BENITO | TX |
| 2025-04-07 | 956-788-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | SAN BENITO | TX |
| 2025-04-07 | 956-823-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | DONNA | TX |
| 2025-04-07 | 956-823-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | DONNA | TX |
| 2025-04-07 | 956-943-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | PORTISABEL | TX |
| 2025-04-07 | 956-953-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | LOSFRESNOS | TX |
| 2025-04-07 | 956-953-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | LOSFRESNOS | TX |
| 2025-04-07 | 956-991-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | EDINBURG | TX |
| 2025-04-07 | 956-991-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | EDINBURG | TX |
| 2025-04-07 | 956-993-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | BROWNSVL | TX |
| 2025-04-07 | 956-993-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | BROWNSVL | TX |
| 2024-05-31 | 956-807-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | DONNA | TX |
| 2024-05-31 | 956-807-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | DONNA | TX |
| 2023-12-04 | 956-395-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | RIO HONDO | TX |
| 2023-12-04 | 956-637-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | RIO HONDO | TX |
| 2023-12-04 | 956-674-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | LOSFRESNOS | TX |
| 2023-12-04 | 956-674-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | LOSFRESNOS | TX |
| 2023-12-04 | 956-695-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | SAN BENITO | TX |
| 2023-12-04 | 956-697-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | PORTISABEL | TX |
| 2023-12-04 | 956-697-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | PORTISABEL | TX |
| 2023-12-04 | 956-745-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | FALCON HTS | TX |
| 2023-12-04 | 956-745-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | FALCON HTS | TX |
| 2023-12-04 | 956-934-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | SAN BENITO | TX |
| 2022-03-07 | 956-234-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | SAN BENITO | TX |
| 2022-03-07 | 956-389-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | HARLINGEN | TX |
| 2022-03-07 | 956-556-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | LOSFRESNOS | TX |
| 2022-03-07 | 956-634-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MERCEDES | TX |
| 2022-03-07 | 956-637-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | RIO HONDO | TX |
| 2022-03-07 | 956-646-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | DONNA | TX |
| 2022-03-07 | 956-697-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | PORTISABEL | TX |
| 2022-03-07 | 956-848-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | FALCON HTS | TX |
| 2022-03-07 | 956-957-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | EDINBURG | TX |
| 2022-03-03 | 956-672-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | MISSION | TX |
| 2020-09-29 | 956-594-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | BROWNSVL | 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.