NumberResearchRecent thousands-block assignments
1 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, last 30 days — NPA 415
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2011-04-28 | 415-857-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2011-04-28 | 415-857-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2011-04-28 | 415-857-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2011-04-28 | 415-857-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2011-04-28 | 415-857-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2011-04-26 | 415-854-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2011-04-26 | 415-854-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2011-04-26 | 415-854-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2011-04-26 | 415-854-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2011-04-22 | 415-858-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NOVATO | CA |
| 2011-04-15 | 415-854-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2011-04-15 | 415-854-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2011-04-15 | 415-854-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2011-04-15 | 415-854-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2011-04-15 | 415-854-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2011-04-15 | 415-854-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2011-04-14 | 415-937-5XXX | 5000–5999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | BELVEDERE | CA |
| 2011-04-12 | 415-209-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | NOVATO | CA |
| 2011-04-12 | 415-226-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN RAFAEL | CA |
| 2011-04-12 | 415-234-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | IGNACIO | CA |
| 2011-04-12 | 415-237-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | INVERNESS | CA |
| 2011-04-12 | 415-237-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | INVERNESS | CA |
| 2011-04-12 | 415-275-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAUSALITO | CA |
| 2011-04-12 | 415-275-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAUSALITO | CA |
| 2011-04-12 | 415-275-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAUSALITO | CA |
| 2011-04-12 | 415-275-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAUSALITO | CA |
| 2011-04-12 | 415-295-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN RAFAEL | CA |
| 2011-04-12 | 415-295-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN RAFAEL | CA |
| 2011-04-12 | 415-295-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN RAFAEL | CA |
| 2011-04-12 | 415-326-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MILLVALLEY | CA |
| 2011-04-12 | 415-326-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MILLVALLEY | CA |
| 2011-04-12 | 415-326-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MILLVALLEY | CA |
| 2011-04-12 | 415-419-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SAN RAFAEL | CA |
| 2011-04-12 | 415-460-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN RAFAEL | CA |
| 2011-04-12 | 415-483-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | IGNACIO | CA |
| 2011-04-12 | 415-483-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | IGNACIO | CA |
| 2011-04-12 | 415-484-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | STNSN-BLNS | CA |
| 2011-04-12 | 415-484-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | STNSN-BLNS | CA |
| 2011-04-12 | 415-496-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORTEMADRA | CA |
| 2011-04-12 | 415-496-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORTEMADRA | CA |
| 2011-04-12 | 415-506-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | IGNACIO | CA |
| 2011-04-12 | 415-534-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | STNSN-BLNS | CA |
| 2011-04-12 | 415-548-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORTEMADRA | CA |
| 2011-04-12 | 415-662-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | NICASIO | CA |
| 2011-04-12 | 415-662-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | NICASIO | CA |
| 2011-04-12 | 415-723-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | POINTREYES | CA |
| 2011-04-12 | 415-787-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | POINTREYES | CA |
| 2011-04-12 | 415-787-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | POINTREYES | CA |
| 2011-04-12 | 415-798-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | NOVATO | CA |
| 2011-04-12 | 415-876-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC MT-EV | 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.