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 916
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 | 916-559-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2016-02-01 | 916-559-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2016-01-28 | 916-675-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | RIO LINDA | CA |
| 2016-01-28 | 916-675-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | RIO LINDA | CA |
| 2016-01-26 | 916-545-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | FAIR OAKS | CA |
| 2016-01-26 | 916-545-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | FAIR OAKS | CA |
| 2016-01-22 | 916-693-6XXX | 6000–6999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | FOLSOM | CA |
| 2016-01-22 | 916-738-7XXX | 7000–7999 | Assigned | FIDIUM ENTERPRISE SERVICES, LLC | 3964 | SCRM MAIN | CA |
| 2016-01-20 | 916-477-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | WALNUT GRV | CA |
| 2016-01-11 | 916-461-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | FOLSOM | CA |
| 2016-01-11 | 916-461-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | FOLSOM | CA |
| 2016-01-08 | 916-680-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2016-01-07 | 916-581-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LINCOLN | CA |
| 2015-12-30 | 916-545-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | FAIR OAKS | CA |
| 2015-12-30 | 916-545-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | FAIR OAKS | CA |
| 2015-12-30 | 916-680-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2015-12-30 | 916-680-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2015-12-15 | 916-559-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SCRM NORTH | CA |
| 2015-12-15 | 916-559-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SCRM NORTH | CA |
| 2015-12-03 | 916-559-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SCRM NORTH | CA |
| 2015-12-01 | 916-305-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RSVL CTHT | CA |
| 2015-12-01 | 916-305-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RSVL CTHT | CA |
| 2015-12-01 | 916-305-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RSVL CTHT | CA |
| 2015-12-01 | 916-305-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RSVL CTHT | CA |
| 2015-12-01 | 916-701-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-11-25 | 916-461-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FOLSOM | CA |
| 2015-11-25 | 916-695-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-11-25 | 916-754-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-11-25 | 916-754-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-11-25 | 916-758-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-11-25 | 916-758-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-11-20 | 916-249-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2015-11-20 | 916-249-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2015-11-20 | 916-249-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2015-11-20 | 916-249-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2015-11-20 | 916-249-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2015-11-20 | 916-249-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2015-11-20 | 916-249-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2015-11-20 | 916-249-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2015-11-20 | 916-249-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2015-11-20 | 916-249-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2015-11-19 | 916-477-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | WALNUT GRV | CA |
| 2015-11-18 | 916-891-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SCRM NORTH | CA |
| 2015-11-18 | 916-891-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SCRM NORTH | CA |
| 2015-11-18 | 916-891-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SCRM NORTH | CA |
| 2015-11-17 | 916-836-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | FOLSOM | CA |
| 2015-11-16 | 916-758-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SCRM MAIN | CA |
| 2015-11-13 | 916-629-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7128 | MEADOWVIEW | CA |
| 2015-11-13 | 916-629-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7128 | MEADOWVIEW | CA |
| 2015-11-09 | 916-891-5XXX | 5000–5999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | SCRM NORTH | 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.