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 820
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-07-17 | 820-465-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | OXNARD | CA |
| 2026-07-16 | 820-216-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ARROYOGRND | CA |
| 2022-10-20 | 820-386-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SIMIVALLEY | CA |
| 2022-10-20 | 820-386-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SIMIVALLEY | CA |
| 2022-10-20 | 820-386-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SIMIVALLEY | CA |
| 2022-07-28 | 820-386-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SIMIVALLEY | CA |
| 2022-07-28 | 820-386-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SIMIVALLEY | CA |
| 2022-07-28 | 820-386-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SIMIVALLEY | CA |
| 2022-07-28 | 820-386-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SIMIVALLEY | CA |
| 2022-07-28 | 820-386-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SIMIVALLEY | CA |
| 2022-03-28 | 820-842-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | OAKVIEW | CA |
| 2022-02-28 | 820-842-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | OAKVIEW | CA |
| 2022-02-16 | 820-209-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | GAVIOTA | CA |
| 2022-01-11 | 820-842-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | OAKVIEW | CA |
| 2021-09-29 | 820-786-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ATASCADERO | CA |
| 2021-09-29 | 820-786-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ATASCADERO | CA |
| 2021-05-19 | 820-280-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LOS ALAMOS | CA |
| 2021-05-19 | 820-500-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | GAVIOTA | CA |
| 2020-11-03 | 820-345-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | EL RIO | CA |
| 2020-11-03 | 820-345-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | EL RIO | CA |
| 2020-08-04 | 820-345-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | EL RIO | CA |
| 2020-08-04 | 820-345-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | EL RIO | CA |
| 2020-07-16 | 820-732-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | VNTRA CNTL | CA |
| 2019-07-03 | 820-888-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SIMIVALLEY | CA |
| 2019-07-02 | 820-888-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SIMIVALLEY | CA |
| 2019-05-20 | 820-888-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SIMIVALLEY | 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.