NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/22/2026
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 323
New assignments by month
Sep 2026
Aug 2026
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Jun 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-04-28 | 323-941-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 02 | CA |
| 2022-09-30 | 323-983-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 06 | CA |
| 2021-10-12 | 323-659-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | MONTEBELLO | CA |
| 2020-06-02 | 323-831-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 05 | CA |
| 2020-04-10 | 323-398-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 03 | CA |
| 2019-01-22 | 323-760-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 14 | CA |
| 2018-09-12 | 323-763-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 06 | CA |
| 2018-08-31 | 323-709-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 11 | CA |
| 2017-09-07 | 323-914-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | MONTEBELLO | CA |
| 2017-09-07 | 323-914-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | MONTEBELLO | CA |
| 2017-06-21 | 323-801-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 13 | CA |
| 2017-03-29 | 323-914-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | MONTEBELLO | CA |
| 2017-03-29 | 323-914-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | MONTEBELLO | CA |
| 2017-03-29 | 323-914-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | MONTEBELLO | CA |
| 2016-10-28 | 323-986-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 04 | CA |
| 2016-06-13 | 323-948-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 05 | CA |
| 2016-03-09 | 323-362-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 05 | CA |
| 2016-03-08 | 323-765-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | MONTEBELLO | CA |
| 2016-03-03 | 323-897-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 08 | CA |
| 2015-09-24 | 323-765-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | MONTEBELLO | CA |
| 2015-03-30 | 323-360-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 05 | CA |
| 2014-07-03 | 323-746-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 13 | CA |
| 2014-01-07 | 323-591-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 13 | CA |
| 2012-10-30 | 323-942-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 09 | CA |
| 2012-04-13 | 323-427-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | MONTEBELLO | CA |
| 2004-02-16 | 323-352-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 04 | CA |
| 2002-12-04 | 323-327-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 09 | CA |
| 2002-09-19 | 323-215-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | MONTEBELLO | CA |
| 2001-10-12 | 323-923-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 06 | CA |
| 2001-09-07 | 323-865-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 04 | CA |
| 2001-09-07 | 323-865-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 04 | CA |
| 2001-09-07 | 323-865-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 04 | CA |
| 2001-09-07 | 323-865-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 04 | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.