NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

4 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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, last 30 days — NPA 707
ONVOY, LLC - CA 2
NEW CINGULAR WIRELESS PCS, LLC 1
BANDWIDTH.COM CLEC, LLC - CA 1
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
2016-01-12 707-203-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C ELK CA
2016-01-12 707-606-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C BENICIA CA
2016-01-11 707-652-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 VALLEJO CA
2016-01-06 707-684-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C BOONVILLE CA
2015-12-16 707-312-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 YOUNTVILLE CA
2015-12-16 707-366-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FRFLD-SUIS CA
2015-12-16 707-366-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FRFLD-SUIS CA
2015-12-14 707-708-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SANTA ROSA CA
2015-12-04 707-241-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PTLM MAIN CA
2015-12-02 707-339-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 YOUNTVILLE CA
2015-11-30 707-842-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WHITETHORN CA
2015-11-25 707-297-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BENICIA CA
2015-11-25 707-366-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FRFLD-SUIS CA
2015-11-25 707-461-4XXX 4000–4999Assigned MCC TELEPHONY LLC 593K LOWER LAKE CA
2015-11-23 707-819-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NAPA CA
2015-11-19 707-732-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SONOMA CA
2015-11-19 707-880-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 VACAVILLE CA
2015-11-18 707-354-8XXX 8000–8999Assigned UNITED STATES CELLULAR - CA 6261 WILLITS CA
2015-11-18 707-728-9XXX 9000–9999Assigned SONIC TELECOM, LLC - CA 433E GUERNEVL CA
2015-11-18 707-742-1XXX 1000–1999Assigned SONIC TELECOM, LLC - CA 433E BENICIA CA
2015-11-18 707-873-8XXX 8000–8999Assigned SONIC TELECOM, LLC - CA 433E OCCIDENTAL CA
2015-11-18 707-891-8XXX 8000–8999Assigned SONIC TELECOM, LLC - CA 433E CLOVERDALE CA
2015-11-16 707-366-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 FRFLD-SUIS CA
2015-11-11 707-708-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SANTA ROSA CA
2015-11-09 707-380-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UKIAH CA
2015-11-09 707-692-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LOWER LAKE CA
2015-11-09 707-880-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VACAVILLE CA
2015-10-29 707-805-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 VALLEJO CA
2015-10-29 707-805-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 VALLEJO CA
2015-10-22 707-867-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SANTA ROSA CA
2015-10-20 707-366-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FRFLD-SUIS CA
2015-10-20 707-805-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VALLEJO CA
2015-10-20 707-805-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VALLEJO CA
2015-10-19 707-512-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ST HELENA CA
2015-10-07 707-787-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PTLM MAIN CA
2015-10-07 707-979-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MENDOCINO CA
2015-10-06 707-510-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HOPLAND CA
2015-10-06 707-892-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L WINDSOR CA
2015-10-01 707-867-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ROSA CA
2015-09-30 707-409-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FORT BRAGG CA
2015-09-23 707-382-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 EUREKA CA
2015-09-23 707-400-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BENICIA CA
2015-09-14 707-492-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NAPA CA
2015-09-08 707-378-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RIO VISTA CA
2015-09-04 707-314-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MONTE RIO CA
2015-09-02 707-243-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E OCCIDENTAL CA
2015-09-02 707-329-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SEBASTOPOL CA
2015-09-02 707-353-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E POINTARENA CA
2015-09-02 707-368-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LEGGETT CA
2015-09-02 707-405-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E COVELO CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.