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 310
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-09-07 | 310-697-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDONDO | CA |
| 2020-10-13 | 310-810-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CMTN CMTN | CA |
| 2020-10-13 | 310-810-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CMTN CMTN | CA |
| 2020-10-13 | 310-810-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CMTN CMTN | CA |
| 2020-10-13 | 310-810-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CMTN CMTN | CA |
| 2020-10-13 | 310-810-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CMTN CMTN | CA |
| 2019-05-17 | 310-289-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BEVERLYHLS | CA |
| 2019-05-10 | 310-879-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CMTN GRDN | CA |
| 2018-03-29 | 310-554-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CMTN CMTN | CA |
| 2017-07-17 | 310-620-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BEVERLYHLS | CA |
| 2014-04-14 | 310-774-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MALIBU | CA |
| 2014-04-14 | 310-774-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MALIBU | CA |
| 2013-06-04 | 310-504-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDONDO | CA |
| 2013-06-04 | 310-504-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDONDO | CA |
| 2013-06-04 | 310-870-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDONDO | CA |
| 2013-05-08 | 310-596-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CULVERCITY | CA |
| 2013-05-08 | 310-730-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CULVERCITY | CA |
| 2013-04-25 | 310-957-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | INGLEWOOD | CA |
| 2013-04-05 | 310-461-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BEVERLYHLS | CA |
| 2013-04-05 | 310-461-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BEVERLYHLS | CA |
| 2012-12-19 | 310-596-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CULVERCITY | CA |
| 2012-12-19 | 310-596-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CULVERCITY | CA |
| 2012-12-19 | 310-596-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CULVERCITY | CA |
| 2012-10-30 | 310-507-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN PEDRO | CA |
| 2012-10-30 | 310-971-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN PEDRO | CA |
| 2012-10-29 | 310-919-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MALIBU | CA |
| 2012-09-19 | 310-953-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | TORRANCE | CA |
| 2012-09-19 | 310-953-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | TORRANCE | CA |
| 2012-08-24 | 310-692-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | INGLEWOOD | CA |
| 2012-08-24 | 310-946-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | INGLEWOOD | CA |
| 2012-08-24 | 310-957-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | INGLEWOOD | CA |
| 2012-08-14 | 310-879-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CMTN GRDN | CA |
| 2012-08-14 | 310-879-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CMTN GRDN | CA |
| 2012-08-13 | 310-730-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CULVERCITY | CA |
| 2012-08-13 | 310-730-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CULVERCITY | CA |
| 2012-08-13 | 310-730-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CULVERCITY | CA |
| 2012-08-13 | 310-870-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDONDO | CA |
| 2012-08-13 | 310-870-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDONDO | CA |
| 2012-08-13 | 310-870-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDONDO | CA |
| 2012-08-13 | 310-870-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDONDO | CA |
| 2012-08-13 | 310-870-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDONDO | CA |
| 2012-08-13 | 310-870-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDONDO | CA |
| 2012-06-05 | 310-461-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BEVERLYHLS | CA |
| 2012-05-22 | 310-870-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDONDO | CA |
| 2012-05-22 | 310-870-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDONDO | CA |
| 2012-05-07 | 310-853-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CULVERCITY | CA |
| 2012-05-03 | 310-464-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CMTN GRDN | CA |
| 2012-02-03 | 310-904-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CULVERCITY | CA |
| 2011-05-26 | 310-626-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LOMITA | CA |
| 2011-04-25 | 310-935-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN PEDRO | 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.