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 407
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-04-18 | 407-442-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | EASTORANGE | FL |
| 2017-11-17 | 407-519-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | GENEVA | FL |
| 2017-11-16 | 407-537-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | EASTORANGE | FL |
| 2017-06-07 | 407-329-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | WKISSIMMEE | FL |
| 2017-06-07 | 407-554-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | WINTERGRDN | FL |
| 2017-06-07 | 407-755-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | WINTERPARK | FL |
| 2017-06-06 | 407-318-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ORLANDO | FL |
| 2017-06-06 | 407-464-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | APOPKA | FL |
| 2017-06-06 | 407-549-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SANFORD | FL |
| 2017-06-06 | 407-604-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | OVIEDO | FL |
| 2016-02-24 | 407-577-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | KISSIMMEE | FL |
| 2016-02-24 | 407-577-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | KISSIMMEE | FL |
| 2013-07-30 | 407-549-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SANFORD | FL |
| 2013-07-30 | 407-901-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | OVIEDO | FL |
| 2013-03-15 | 407-530-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | KISSIMMEE | FL |
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.