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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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-02-01 | 415-943-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | STNSN-BLNS | CA |
| 2016-01-27 | 415-301-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | NOVATO | CA |
| 2016-01-27 | 415-301-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | NOVATO | CA |
| 2016-01-27 | 415-996-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | IGNACIO | CA |
| 2016-01-26 | 415-855-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SAUSALITO | CA |
| 2016-01-25 | 415-360-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | MILLVALLEY | CA |
| 2016-01-25 | 415-360-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | MILLVALLEY | CA |
| 2016-01-07 | 415-384-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MILLVALLEY | CA |
| 2015-12-31 | 415-604-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SNFC JUNPR | CA |
| 2015-12-31 | 415-818-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SNFC JUNPR | CA |
| 2015-12-28 | 415-498-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2015-12-28 | 415-792-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2015-12-23 | 415-909-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SNFC JUNPR | CA |
| 2015-12-23 | 415-909-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SNFC JUNPR | CA |
| 2015-12-23 | 415-909-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SNFC JUNPR | CA |
| 2015-12-21 | 415-384-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | MILLVALLEY | CA |
| 2015-12-17 | 415-818-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | SNFC JUNPR | CA |
| 2015-12-16 | 415-947-7XXX | 7000–7999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | SNFC CNTRL | CA |
| 2015-12-16 | 415-991-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SAN RAFAEL | CA |
| 2015-12-14 | 415-792-6XXX | 6000–6999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | SNFC CNTRL | CA |
| 2015-12-04 | 415-761-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NOVATO | CA |
| 2015-11-24 | 415-301-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | NOVATO | CA |
| 2015-11-24 | 415-301-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | NOVATO | CA |
| 2015-11-24 | 415-888-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | MILLVALLEY | CA |
| 2015-11-20 | 415-855-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SAUSALITO | CA |
| 2015-11-13 | 415-849-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | CORTEMADRA | CA |
| 2015-11-11 | 415-996-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | IGNACIO | CA |
| 2015-11-11 | 415-996-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | IGNACIO | CA |
| 2015-10-29 | 415-619-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2015-10-29 | 415-619-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2015-10-29 | 415-619-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2015-10-29 | 415-619-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2015-10-29 | 415-619-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2015-10-29 | 415-619-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2015-10-19 | 415-619-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BELVEDERE | CA |
| 2015-10-09 | 415-849-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CORTEMADRA | CA |
| 2015-10-09 | 415-849-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CORTEMADRA | CA |
| 2015-09-29 | 415-919-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2015-09-23 | 415-855-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SAUSALITO | CA |
| 2015-09-22 | 415-919-3XXX | 3000–3999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | SNFC CNTRL | CA |
| 2015-09-17 | 415-855-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SAUSALITO | CA |
| 2015-09-17 | 415-903-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | POINTREYES | CA |
| 2015-09-17 | 415-919-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNFC CNTRL | CA |
| 2015-09-17 | 415-919-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNFC CNTRL | CA |
| 2015-09-17 | 415-919-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNFC CNTRL | CA |
| 2015-09-16 | 415-916-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2015-09-16 | 415-916-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2015-09-16 | 415-916-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2015-09-16 | 415-916-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2015-09-16 | 415-916-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | 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.