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
2014-08-12 707-530-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LAKEPORT CA
2014-07-31 707-492-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NAPA CA
2014-07-31 707-752-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BENICIA CA
2014-07-30 707-379-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VALLEYFORD CA
2014-07-30 707-419-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FRFLD-SUIS CA
2014-07-30 707-567-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VALLEJO CA
2014-07-30 707-798-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUREKA CA
2014-07-30 707-981-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PTLM MAIN CA
2014-07-23 707-457-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CRESCENTCY CA
2014-07-21 707-943-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MIRANDA CA
2014-07-16 707-931-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SONOMA CA
2014-07-15 707-617-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C FORTUNA CA
2014-07-14 707-317-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VACAVILLE CA
2014-07-14 707-357-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FORT BRAGG CA
2014-07-14 707-492-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NAPA CA
2014-07-14 707-653-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VALLEJO CA
2014-07-14 707-800-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ROSA CA
2014-07-09 707-492-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C NAPA CA
2014-07-09 707-641-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C VALLEJO CA
2014-07-09 707-665-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C PTLM SWIFT CA
2014-07-02 707-724-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VACAVILLE CA
2014-06-30 707-397-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MENDOCINO CA
2014-06-24 707-724-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VACAVILLE CA
2014-06-23 707-617-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 FORTUNA CA
2014-06-20 707-639-9XXX 9000–9999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L FRFLD-SUIS CA
2014-06-10 707-302-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ST HELENA CA
2014-06-10 707-302-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ST HELENA CA
2014-06-04 707-724-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J VACAVILLE CA
2014-05-30 707-515-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VALLEJO CA
2014-05-30 707-640-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DIXON CA
2014-05-30 707-791-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ROSA CA
2014-05-30 707-791-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ROSA CA
2014-05-30 707-791-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ROSA CA
2014-05-30 707-791-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ROSA CA
2014-05-30 707-791-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ROSA CA
2014-05-19 707-640-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DIXON CA
2014-05-19 707-835-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PTLM MAIN CA
2014-05-19 707-835-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PTLM MAIN CA
2014-05-16 707-791-1XXX 1000–1999Assigned SONIC TELECOM, LLC - CA 433E SANTA ROSA CA
2014-05-15 707-384-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FRFLD-SUIS CA
2014-05-14 707-355-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MIDDLETOWN CA
2014-05-14 707-408-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KENWOOD CA
2014-05-14 707-504-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OCCIDENTAL CA
2014-05-14 707-530-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAKEPORT CA
2014-05-14 707-587-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KELSEYVL CA
2014-05-14 707-593-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MENDOCINO CA
2014-05-14 707-728-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GUERNEVL CA
2014-05-14 707-739-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NICE CA
2014-05-14 707-744-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HOPLAND CA
2014-05-14 707-791-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SANTA ROSA 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.