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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-07-31 | 916-620-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2015-07-31 | 916-620-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2015-07-31 | 916-620-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2015-07-31 | 916-620-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2015-07-31 | 916-620-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2015-07-31 | 916-633-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FAIR OAKS | CA |
| 2015-07-31 | 916-793-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2015-07-31 | 916-793-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2015-07-31 | 916-891-2XXX | 2000–2999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | SCRM NORTH | CA |
| 2015-07-29 | 916-250-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SO PLACER | CA |
| 2015-07-29 | 916-250-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SO PLACER | CA |
| 2015-07-29 | 916-250-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SO PLACER | CA |
| 2015-07-29 | 916-836-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FOLSOM | CA |
| 2015-07-29 | 916-836-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FOLSOM | CA |
| 2015-07-29 | 916-836-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FOLSOM | CA |
| 2015-07-29 | 916-836-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FOLSOM | CA |
| 2015-07-29 | 916-836-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FOLSOM | CA |
| 2015-07-29 | 916-836-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FOLSOM | CA |
| 2015-07-27 | 916-633-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FAIR OAKS | CA |
| 2015-07-27 | 916-633-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FAIR OAKS | CA |
| 2015-07-27 | 916-633-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FAIR OAKS | CA |
| 2015-07-24 | 916-953-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | RSVL MAIN | CA |
| 2015-07-23 | 916-823-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | SCRM MAIN | CA |
| 2015-07-20 | 916-953-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RSVL MAIN | CA |
| 2015-07-17 | 916-750-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SCRM NORTH | CA |
| 2015-07-17 | 916-750-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SCRM NORTH | CA |
| 2015-07-17 | 916-750-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SCRM NORTH | CA |
| 2015-07-17 | 916-750-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SCRM NORTH | CA |
| 2015-07-17 | 916-750-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SCRM NORTH | CA |
| 2015-07-17 | 916-750-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SCRM NORTH | CA |
| 2015-07-15 | 916-823-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2015-07-15 | 916-823-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2015-07-10 | 916-823-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SCRM MAIN | CA |
| 2015-07-07 | 916-250-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SO PLACER | CA |
| 2015-07-07 | 916-291-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-07-07 | 916-291-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-07-07 | 916-291-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-07-07 | 916-291-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-07-07 | 916-291-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-07-07 | 916-291-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-07-07 | 916-291-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-07-07 | 916-291-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-07-07 | 916-291-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-07-07 | 916-291-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2015-07-07 | 916-581-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LINCOLN | CA |
| 2015-07-07 | 916-665-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MEADOWVIEW | CA |
| 2015-07-07 | 916-750-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2015-07-07 | 916-750-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2015-07-07 | 916-750-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2015-07-07 | 916-750-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | 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.