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 949
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-12-08 | 949-708-1XXX | 1000–1999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2020-07-31 | 949-946-1XXX | 1000–1999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | SADLBK VLY | CA |
| 2017-07-28 | 949-308-6XXX | 6000–6999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2016-07-28 | 949-652-4XXX | 4000–4999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | SADLBK VLY | CA |
| 2015-12-31 | 949-299-3XXX | 3000–3999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2015-01-19 | 949-372-3XXX | 3000–3999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2015-01-14 | 949-434-5XXX | 5000–5999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | SADLBK VLY | CA |
| 2014-07-29 | 949-531-4XXX | 4000–4999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | NEWPORTBCH | CA |
| 2013-10-04 | 949-430-3XXX | 3000–3999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2013-04-16 | 949-526-7XXX | 7000–7999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2013-04-16 | 949-526-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2012-12-13 | 949-383-2XXX | 2000–2999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2012-12-13 | 949-383-3XXX | 3000–3999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2012-10-03 | 949-381-4XXX | 4000–4999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2012-10-03 | 949-381-6XXX | 6000–6999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2012-08-01 | 949-864-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2012-06-05 | 949-527-4XXX | 4000–4999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2011-08-30 | 949-527-3XXX | 3000–3999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2009-06-16 | 949-202-3XXX | 3000–3999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2008-10-21 | 949-638-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | SADLBK VLY | CA |
| 2008-03-06 | 949-732-2XXX | 2000–2999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2007-04-27 | 949-242-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | CA |
| 2006-02-17 | 949-892-4XXX | 4000–4999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | IRVINE | 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.