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 626
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-09-21 | 626-779-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | SNGBLCNN | CA |
| 2015-11-20 | 626-693-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | ARCADIA | CA |
| 2015-10-14 | 626-474-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | LA PUENTE | CA |
| 2015-08-26 | 626-420-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LA PUENTE | CA |
| 2015-08-21 | 626-205-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MONROVIA | CA |
| 2015-08-21 | 626-264-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SIERRAMADR | CA |
| 2015-08-21 | 626-364-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | COVINA | CA |
| 2015-04-27 | 626-238-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | ALHAMBRA | CA |
| 2015-04-27 | 626-634-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | COVINA | CA |
| 2015-03-02 | 626-208-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | AZUSA | CA |
| 2013-12-11 | 626-899-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ALHAMBRA | CA |
| 2006-08-16 | 626-249-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MONROVIA | CA |
| 2006-08-16 | 626-249-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | MONROVIA | CA |
| 2006-08-16 | 626-435-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | LA PUENTE | CA |
| 2006-08-16 | 626-472-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | COVINA | CA |
| 2006-08-16 | 626-472-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | COVINA | CA |
| 2005-01-11 | 626-325-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SIERRAMADR | CA |
| 2005-01-11 | 626-325-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | SIERRAMADR | CA |
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.