NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 805
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-11-25 | 805-802-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SNLUSOBSPO | CA |
| 2016-07-07 | 805-952-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | ATASCADERO | CA |
| 2015-08-26 | 805-749-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | SANTAPAULA | CA |
| 2015-08-21 | 805-214-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | NEWBURYPRK | CA |
| 2015-08-21 | 805-678-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | POINT MUGU | CA |
| 2015-08-21 | 805-728-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | THOUSAOAKS | CA |
| 2015-08-21 | 805-738-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | CAMARILLO | CA |
| 2005-01-11 | 805-229-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | SANTAPAULA | CA |
| 2005-01-11 | 805-229-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | SANTAPAULA | CA |
| 2004-10-18 | 805-205-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | OXNARD | CA |
| 2004-10-18 | 805-205-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | OXNARD | CA |
| 2004-10-18 | 805-244-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | CONEJO | CA |
| 2004-10-18 | 805-244-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | CONEJO | CA |
| 2004-10-18 | 805-246-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | POINT MUGU | CA |
| 2004-10-18 | 805-246-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | POINT MUGU | CA |
| 2004-10-18 | 805-273-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | NEWBURYPRK | CA |
| 2004-10-18 | 805-273-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | NEWBURYPRK | CA |
| 2004-10-18 | 805-409-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | THOUSAOAKS | CA |
| 2004-10-18 | 805-409-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | THOUSAOAKS | CA |
| 2004-10-18 | 805-920-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | SOMIS | CA |
| 2004-10-18 | 805-920-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | SOMIS | CA |
| 2004-10-18 | 805-973-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | EL RIO | CA |
| 2004-10-18 | 805-973-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | EL RIO | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.