NumberResearchRecent thousands-block assignments
1 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, 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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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2010-01-28 | 415-787-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | POINTREYES | CA |
| 2010-01-28 | 415-789-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BELVEDERE | CA |
| 2010-01-28 | 415-937-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BELVEDERE | CA |
| 2010-01-27 | 415-375-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC MT-EV | CA |
| 2010-01-27 | 415-508-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2010-01-27 | 415-508-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2010-01-12 | 415-684-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2009-12-30 | 415-349-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC JUNPR | CA |
| 2009-12-30 | 415-513-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNFC CNTRL | CA |
| 2009-12-29 | 415-878-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | NOVATO | CA |
| 2009-12-09 | 415-294-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2009-12-09 | 415-294-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2009-12-09 | 415-343-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2009-12-09 | 415-347-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2009-12-09 | 415-347-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2009-12-09 | 415-347-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2009-12-09 | 415-570-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2009-12-09 | 415-570-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2009-12-09 | 415-570-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2009-12-09 | 415-570-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2009-12-09 | 415-570-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2009-12-09 | 415-617-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2009-12-09 | 415-617-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2009-12-09 | 415-735-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2009-12-09 | 415-735-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2009-12-09 | 415-735-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2009-12-09 | 415-735-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2009-12-09 | 415-746-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2009-12-09 | 415-856-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2009-12-09 | 415-951-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2009-12-02 | 415-209-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NOVATO | CA |
| 2009-11-24 | 415-534-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | STNSN-BLNS | CA |
| 2009-11-24 | 415-691-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2009-11-23 | 415-226-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SAN RAFAEL | CA |
| 2009-11-23 | 415-349-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SNFC JUNPR | CA |
| 2009-11-23 | 415-592-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SNFC MT-EV | CA |
| 2009-11-23 | 415-630-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | NICASIO | CA |
| 2009-11-23 | 415-663-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | POINTREYES | CA |
| 2009-11-23 | 415-754-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAUSALITO | CA |
| 2009-11-23 | 415-754-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SAUSALITO | CA |
| 2009-11-20 | 415-234-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | IGNACIO | CA |
| 2009-11-20 | 415-236-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | INVERNESS | CA |
| 2009-11-20 | 415-322-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | MILLVALLEY | CA |
| 2009-11-19 | 415-548-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | CORTEMADRA | CA |
| 2009-11-18 | 415-691-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | BELVEDERE | CA |
| 2009-11-05 | 415-553-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2009-11-05 | 415-744-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2009-11-05 | 415-844-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2009-11-02 | 415-735-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2009-10-28 | 415-413-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CORTEMADRA | 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.