NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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
T-MOBILE USA, INC. 446
ONVOY, LLC - CA 397
NEW CINGULAR WIRELESS PCS, LLC 374
METROPCS, INC. 362
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 331
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2017-03-21 916-269-0XXX 0000–0999Assigned TELNYX LLC 073H RIO LINDA CA
2017-03-16 916-886-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RSVL MAIN CA
2017-03-15 916-840-1XXX 1000–1999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SCRM MAIN CA
2017-03-14 916-234-8XXX 8000–8999Assigned TELNYX LLC 073H MICHIGNBAR CA
2017-03-14 916-260-2XXX 2000–2999Assigned TELNYX LLC 073H FOLSOM CA
2017-03-14 916-620-8XXX 8000–8999Assigned TELNYX LLC 073H SCRM MAIN CA
2017-03-14 916-713-0XXX 0000–0999Assigned TELNYX LLC 073H SCRM NORTH CA
2017-03-14 916-884-9XXX 9000–9999Assigned TELNYX LLC 073H LINCOLN CA
2017-03-14 916-953-6XXX 6000–6999Assigned TELNYX LLC 073H RSVL MAIN CA
2017-03-14 916-963-8XXX 8000–8999Assigned TELNYX LLC 073H FAIR OAKS CA
2017-03-14 916-975-9XXX 9000–9999Assigned TELNYX LLC 073H SO PLACER CA
2017-02-24 916-892-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 7718 ELK GROVE CA
2017-02-07 916-210-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2017-02-07 916-272-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2017-02-07 916-767-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2017-02-07 916-767-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2017-02-07 916-767-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2017-02-07 916-767-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2017-02-07 916-823-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2017-01-13 916-260-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 FOLSOM CA
2017-01-12 916-886-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 RSVL MAIN CA
2017-01-11 916-260-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FOLSOM CA
2017-01-11 916-884-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LINCOLN CA
2017-01-06 916-713-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7174 SCRM NORTH CA
2016-12-29 916-823-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SCRM MAIN CA
2016-12-28 916-302-8XXX 8000–8999Assigned TELNYX LLC 073H PLEASATGRV CA
2016-12-27 916-674-3XXX 3000–3999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 MICHIGNBAR CA
2016-12-09 916-886-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 RSVL MAIN CA
2016-12-07 916-823-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SCRM MAIN CA
2016-12-06 916-713-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SCRM NORTH CA
2016-11-28 916-767-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2016-11-28 916-767-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2016-11-28 916-892-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ELK GROVE CA
2016-11-23 916-892-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ELK GROVE CA
2016-11-23 916-892-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ELK GROVE CA
2016-11-21 916-767-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SCRM MAIN CA
2016-11-15 916-260-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F FOLSOM CA
2016-11-10 916-477-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WALNUT GRV CA
2016-10-31 916-250-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SO PLACER CA
2016-10-24 916-713-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SCRM NORTH CA
2016-10-18 916-260-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L FOLSOM CA
2016-10-14 916-465-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2016-10-14 916-465-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2016-10-14 916-465-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2016-10-14 916-465-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2016-10-14 916-465-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2016-10-14 916-465-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2016-10-07 916-756-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 COURTLAND CA
2016-10-05 916-465-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SCRM MAIN CA
2016-10-03 916-345-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C 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.