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
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Jun 2026
May 2026
Apr 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2005-04-14 | 916-968-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | FAIR OAKS | CA |
| 2005-04-01 | 916-235-7XXX | 7000–7999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | FOLSOM | CA |
| 2005-04-01 | 916-844-3XXX | 3000–3999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | FAIR OAKS | CA |
| 2005-03-31 | 916-236-6XXX | 6000–6999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | ELK GROVE | CA |
| 2005-03-31 | 916-350-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | FOLSOM | CA |
| 2005-03-31 | 916-475-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | SCRM MAIN | CA |
| 2005-03-31 | 916-475-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2005-03-31 | 916-570-1XXX | 1000–1999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SCRM NORTH | CA |
| 2005-03-31 | 916-625-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | SO PLACER | CA |
| 2005-03-31 | 916-644-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LINCOLN | CA |
| 2005-03-31 | 916-724-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | RSVL MAIN | CA |
| 2005-03-31 | 916-727-8XXX | 8000–8999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | RSVL CTHT | CA |
| 2005-03-31 | 916-863-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | FAIR OAKS | CA |
| 2005-03-31 | 916-992-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | RIO LINDA | CA |
| 2005-03-25 | 916-248-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2005-03-25 | 916-248-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2005-03-25 | 916-248-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2005-03-25 | 916-979-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | SCRM NORTH | CA |
| 2005-03-24 | 916-248-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | SCRM MAIN | CA |
| 2005-03-16 | 916-241-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | FAIR OAKS | CA |
| 2005-03-16 | 916-480-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | SCRM NORTH | CA |
| 2005-03-09 | 916-273-1XXX | 1000–1999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SCRM MAIN | CA |
| 2005-03-08 | 916-475-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2005-03-08 | 916-475-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2005-03-08 | 916-674-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | MICHIGNBAR | CA |
| 2005-03-08 | 916-674-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | MICHIGNBAR | CA |
| 2005-03-08 | 916-674-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | MICHIGNBAR | CA |
| 2005-03-08 | 916-675-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | RIO LINDA | CA |
| 2005-03-08 | 916-675-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | RIO LINDA | CA |
| 2005-03-08 | 916-675-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | RIO LINDA | CA |
| 2005-03-08 | 916-675-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | RIO LINDA | CA |
| 2005-03-08 | 916-675-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | RIO LINDA | CA |
| 2005-03-03 | 916-367-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | RSVL MAIN | CA |
| 2005-03-03 | 916-475-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2005-03-02 | 916-960-2XXX | 2000–2999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7174 | RSVL MAIN | CA |
| 2005-02-25 | 916-832-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2005-02-25 | 916-832-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2005-02-25 | 916-832-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2005-02-25 | 916-832-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2005-02-25 | 916-832-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SCRM MAIN | CA |
| 2005-02-24 | 916-265-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SCRM NORTH | CA |
| 2005-02-24 | 916-265-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SCRM NORTH | CA |
| 2005-02-24 | 916-365-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | FOLSOM | CA |
| 2005-02-24 | 916-473-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SCRM NORTH | CA |
| 2005-02-23 | 916-218-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | RSVL MAIN | CA |
| 2005-02-22 | 916-221-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FOLSOM | CA |
| 2005-02-22 | 916-221-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FOLSOM | CA |
| 2005-02-22 | 916-221-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FOLSOM | CA |
| 2005-02-22 | 916-337-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FOLSOM | CA |
| 2005-02-22 | 916-436-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | FAIR OAKS | 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.