NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 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, last 30 days — NPA 707
ONVOY, LLC - CA 6
NEW CINGULAR WIRELESS PCS, LLC 1
EXIANT COMMUNICATIONS 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
2008-03-19 707-624-2XXX 2000–2999Assigned PACIFIC BELL 9740 VACAVILLE CA
2008-03-19 707-624-3XXX 3000–3999Assigned PACIFIC BELL 9740 VACAVILLE CA
2008-03-19 707-624-4XXX 4000–4999Assigned PACIFIC BELL 9740 VACAVILLE CA
2008-03-18 707-241-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PTLM MAIN CA
2008-03-18 707-397-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 MENDOCINO CA
2008-03-07 707-684-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BOONVILLE CA
2008-02-27 707-393-1XXX 1000–1999Assigned METROPCS, INC. 5562 SANTA ROSA CA
2008-02-27 707-921-6XXX 6000–6999Assigned METROPCS, INC. 5562 SANTA ROSA CA
2008-02-22 707-320-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C NAPA CA
2008-02-15 707-721-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SONOMA CA
2008-02-15 707-721-7XXX 7000–7999Assigned METROPCS, INC. 5562 SONOMA CA
2008-02-15 707-774-9XXX 9000–9999Assigned METROPCS, INC. 5562 PTLM MAIN CA
2008-02-13 707-561-1XXX 1000–1999Assigned METROPCS, INC. 5562 VALLEJO CA
2008-02-08 707-502-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EUREKA CA
2008-02-08 707-502-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EUREKA CA
2008-02-08 707-502-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EUREKA CA
2008-02-01 707-200-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ST HELENA CA
2008-02-01 707-439-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FRFLD-SUIS CA
2008-01-31 707-509-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SONOMA CA
2008-01-29 707-304-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C SANTA ROSA CA
2008-01-28 707-470-6XXX 6000–6999Assigned METROPCS, INC. 5562 VACAVILLE CA
2008-01-17 707-343-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SONOMA CA
2008-01-16 707-560-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CLERLAOAKS CA
2008-01-11 707-671-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 UKIAH CA
2008-01-11 707-671-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 UKIAH CA
2008-01-08 707-731-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VALLEJO CA
2007-12-07 707-238-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PTLM SWIFT CA
2007-11-29 707-471-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J VACAVILLE CA
2007-11-29 707-507-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J RIO VISTA CA
2007-11-29 707-533-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LAKEPORT CA
2007-11-29 707-861-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SEBASTOPOL CA
2007-11-29 707-992-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J PTLM SWIFT CA
2007-11-28 707-297-4XXX 4000–4999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BENICIA CA
2007-11-28 707-461-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LOWER LAKE CA
2007-11-09 707-502-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EUREKA CA
2007-11-09 707-502-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EUREKA CA
2007-11-08 707-267-1XXX 1000–1999Assigned METROPCS, INC. 5562 EUREKA CA
2007-11-08 707-457-2XXX 2000–2999Assigned METROPCS, INC. 5562 CRESCENTCY CA
2007-11-08 707-774-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PTLM MAIN CA
2007-10-22 707-534-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VALLEJO CA
2007-10-22 707-561-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VALLEJO CA
2007-10-18 707-416-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 FRFLD-SUIS CA
2007-10-15 707-393-7XXX 7000–7999Assigned METROPCS, INC. 5562 SANTA ROSA CA
2007-10-15 707-393-8XXX 8000–8999Assigned METROPCS, INC. 5562 SANTA ROSA CA
2007-10-15 707-393-9XXX 9000–9999Assigned METROPCS, INC. 5562 SANTA ROSA CA
2007-09-27 707-533-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LAKEPORT CA
2007-09-27 707-533-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LAKEPORT CA
2007-09-18 707-419-1XXX 1000–1999Assigned METROPCS, INC. 5562 FRFLD-SUIS CA
2007-09-18 707-766-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PTLM MAIN CA
2007-09-17 707-430-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FRFLD-SUIS 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.