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
2014-03-12 707-652-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VALLEJO CA
2014-03-12 707-724-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VACAVILLE CA
2014-03-12 707-892-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WINDSOR CA
2014-03-12 707-934-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SONOMA CA
2014-03-11 707-296-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUREKA CA
2014-03-11 707-380-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UKIAH CA
2014-03-11 707-389-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FRFLD-SUIS CA
2014-03-11 707-724-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VACAVILLE CA
2014-03-11 707-724-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VACAVILLE CA
2014-03-11 707-771-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BENICIA CA
2014-03-03 707-354-5XXX 5000–5999Assigned UNITED STATES CELLULAR - CA 6261 WILLITS CA
2014-02-28 707-298-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EUREKA CA
2014-02-28 707-461-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LOWER LAKE CA
2014-02-28 707-473-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HEALDSBURG CA
2014-02-28 707-737-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CALISTOGA CA
2014-02-28 707-752-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BENICIA CA
2014-02-26 707-247-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PIERCY CA
2014-02-26 707-296-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E EUREKA CA
2014-02-26 707-353-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E POINTARENA CA
2014-02-26 707-780-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PTLM MAIN CA
2014-02-25 707-617-2XXX 2000–2999Assigned CSC VOICE, LLC 612K FORTUNA CA
2014-02-11 707-607-3XXX 3000–3999Assigned CSC VOICE, LLC 612K FERNDALE CA
2014-02-11 707-630-3XXX 3000–3999Assigned CSC VOICE, LLC 612K ARCATA CA
2014-02-11 707-630-4XXX 4000–4999Assigned CSC VOICE, LLC 612K ARCATA CA
2014-02-11 707-630-5XXX 5000–5999Assigned CSC VOICE, LLC 612K ARCATA CA
2014-02-11 707-686-3XXX 3000–3999Assigned CSC VOICE, LLC 612K LOLETA CA
2014-02-11 707-783-3XXX 3000–3999Assigned CSC VOICE, LLC 612K RIO DELL CA
2014-02-11 707-844-3XXX 3000–3999Assigned CSC VOICE, LLC 612K BLUE LAKE CA
2014-02-11 707-851-3XXX 3000–3999Assigned CSC VOICE, LLC 612K HYDESVILLE CA
2014-02-10 707-617-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FORTUNA CA
2014-02-03 707-677-2XXX 2000–2999Assigned CSC VOICE, LLC 612K TRINIDAD CA
2014-01-31 707-764-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 RIO DELL CA
2014-01-27 707-791-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SANTA ROSA CA
2014-01-16 707-621-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 UKIAH CA
2014-01-14 707-648-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VALLEJO CA
2014-01-08 707-791-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANTA ROSA CA
2013-12-12 707-244-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ST HELENA CA
2013-12-04 707-389-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 FRFLD-SUIS CA
2013-11-26 707-724-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VACAVILLE CA
2013-11-22 707-641-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VALLEJO CA
2013-11-22 707-892-7XXX 7000–7999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 WINDSOR CA
2013-11-21 707-380-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UKIAH CA
2013-11-21 707-389-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FRFLD-SUIS CA
2013-11-20 707-744-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J HOPLAND CA
2013-11-08 707-296-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J EUREKA CA
2013-11-06 707-296-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EUREKA CA
2013-11-06 707-302-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ST HELENA CA
2013-11-04 707-383-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C GARBERVL CA
2013-11-04 707-383-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C GARBERVL CA
2013-11-04 707-798-1XXX 1000–1999Assigned CSC VOICE, LLC 612K EUREKA 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.