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
2010-12-07 707-245-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LAKEPORT CA
2010-12-07 707-362-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EUREKA CA
2010-12-03 707-654-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VALLEJO CA
2010-12-03 707-999-0XXX 0000–0999Assigned METROPCS, INC. 5562 VACAVILLE CA
2010-11-24 707-472-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 UKIAH CA
2010-11-22 707-400-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BENICIA CA
2010-11-17 707-684-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BOONVILLE CA
2010-11-15 707-266-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NAPA CA
2010-11-15 707-474-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VACAVILLE CA
2010-11-15 707-595-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SANTA ROSA CA
2010-11-09 707-563-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VALLEJO CA
2010-11-05 707-933-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SONOMA CA
2010-11-03 707-336-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C PETROLIA CA
2010-10-29 707-595-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANTA ROSA CA
2010-10-29 707-666-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C NAPA CA
2010-10-20 707-335-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F BRIDGEVL CA
2010-10-14 707-218-3XXX 3000–3999Assigned METROPCS, INC. 5562 CRESCENTCY CA
2010-10-14 707-245-1XXX 1000–1999Assigned METROPCS, INC. 5562 LAKEPORT CA
2010-10-14 707-467-7XXX 7000–7999Assigned METROPCS, INC. 5562 UKIAH CA
2010-10-14 707-657-8XXX 8000–8999Assigned METROPCS, INC. 5562 WINDSOR CA
2010-10-14 707-726-3XXX 3000–3999Assigned METROPCS, INC. 5562 FORTUNA CA
2010-09-30 707-687-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 WINDSOR CA
2010-09-29 707-595-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SANTA ROSA CA
2010-09-22 707-362-4XXX 4000–4999Assigned METROPCS, INC. 5562 EUREKA CA
2010-09-22 707-812-9XXX 9000–9999Assigned METROPCS, INC. 5562 NAPA CA
2010-09-16 707-894-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CLOVERDALE CA
2010-09-15 707-827-2XXX 2000–2999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7174 SEBASTOPOL CA
2010-09-09 707-999-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C VACAVILLE CA
2010-08-31 707-473-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L HEALDSBURG CA
2010-08-30 707-242-8XXX 8000–8999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7174 PTLM SWIFT CA
2010-08-30 707-509-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7174 SONOMA CA
2010-08-30 707-669-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7174 CLOVERDALE CA
2010-08-30 707-814-7XXX 7000–7999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7174 GEYSERVL CA
2010-08-25 707-223-8XXX 8000–8999Assigned UNITED STATES CELLULAR - CA 6261 GARBERVL CA
2010-08-24 707-200-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ST HELENA CA
2010-08-24 707-278-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E KELSEYVL CA
2010-08-24 707-385-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HEALDSBURG CA
2010-08-24 707-400-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BENICIA CA
2010-08-24 707-461-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LOWER LAKE CA
2010-08-24 707-533-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LAKEPORT CA
2010-08-24 707-634-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SEBASTOPOL CA
2010-08-18 707-595-1XXX 1000–1999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SANTA ROSA CA
2010-08-18 707-595-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SANTA ROSA CA
2010-08-17 707-267-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EUREKA CA
2010-08-17 707-497-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EUREKA CA
2010-08-10 707-242-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PTLM SWIFT CA
2010-08-10 707-267-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E EUREKA CA
2010-08-10 707-376-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E UKIAH CA
2010-08-10 707-639-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E FRFLD-SUIS CA
2010-08-10 707-840-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ARCATA 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.