NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-11-29 | 323-487-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | LSAN DA 06 | CA |
| 2022-08-08 | 323-606-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | LSAN DA 14 | CA |
| 2019-12-18 | 323-220-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | LSAN DA 11 | CA |
| 2018-12-26 | 323-300-2XXX | 2000–2999 | Assigned | TELNYX LLC | 073H | LSAN DA 02 | CA |
| 2018-05-01 | 323-916-2XXX | 2000–2999 | Assigned | TELNYX LLC | 073H | LSAN DA 03 | CA |
| 2018-05-01 | 323-990-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | LSAN DA 04 | CA |
| 2017-05-22 | 323-218-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | LSAN DA 13 | CA |
| 2017-05-22 | 323-328-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | LSAN DA 11 | CA |
| 2017-05-22 | 323-329-3XXX | 3000–3999 | Assigned | TELNYX LLC | 073H | LSAN DA 12 | CA |
| 2017-05-22 | 323-689-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | LSAN DA 08 | CA |
| 2017-05-22 | 323-831-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | LSAN DA 05 | CA |
| 2017-05-22 | 323-880-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | LSAN DA 09 | CA |
| 2017-03-14 | 323-471-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | LSAN DA 14 | CA |
| 2017-03-14 | 323-516-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | MONTEBELLO | CA |
| 2017-03-14 | 323-996-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | LSAN DA 06 | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.