NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 909
ONVOY, LLC - CA 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
2007-03-05 909-212-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ONTARIO CA
2007-03-01 909-204-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K UPLAND CA
2007-03-01 909-567-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K S BERNDINO CA
2007-03-01 909-859-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DIAMONDBAR CA
2007-02-27 909-202-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2007-02-27 909-202-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2007-02-27 909-362-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K HIGHLAND CA
2007-02-27 909-474-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K MARSHALL CA
2007-02-26 909-206-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MENTONE CA
2007-02-26 909-206-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MENTONE CA
2007-02-26 909-206-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MENTONE CA
2007-02-22 909-436-3XXX 3000–3999Assigned FRONTIER CALIFORNIA INC. 2319 ARROWHEAD CA
2007-02-16 909-718-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 DIAMONDBAR CA
2007-02-15 909-201-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J FONTANA CA
2007-02-15 909-201-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J FONTANA CA
2007-02-15 909-203-4XXX 4000–4999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CHINO CA
2007-02-15 909-203-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CHINO CA
2007-02-15 909-204-4XXX 4000–4999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J UPLAND CA
2007-02-15 909-204-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J UPLAND CA
2007-02-15 909-204-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J UPLAND CA
2007-02-15 909-204-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J UPLAND CA
2007-02-15 909-267-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CLAREMONT CA
2007-02-15 909-451-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CLAREMONT CA
2007-02-15 909-718-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J DIAMONDBAR CA
2007-02-15 909-718-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J DIAMONDBAR CA
2007-02-15 909-763-4XXX 4000–4999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J S BERNDINO CA
2007-02-15 909-763-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J S BERNDINO CA
2007-02-15 909-835-4XXX 4000–4999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J COLTON CA
2007-02-12 909-203-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHINO CA
2007-02-12 909-203-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHINO CA
2007-02-12 909-203-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHINO CA
2007-02-12 909-486-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 S BERNDINO CA
2007-02-12 909-533-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COLTON CA
2007-02-12 909-763-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 S BERNDINO CA
2007-02-12 909-894-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 REDLANDS CA
2007-02-07 909-486-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2007-02-07 909-486-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2007-02-07 909-810-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MENTONE CA
2007-02-07 909-918-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 CALIMESA CA
2007-02-05 909-204-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 7718 UPLAND CA
2007-02-05 909-658-0XXX 0000–0999Assigned FRONTIER CALIFORNIA INC. 2319 S BERNDINO CA
2007-02-05 909-658-1XXX 1000–1999Assigned FRONTIER CALIFORNIA INC. 2319 S BERNDINO CA
2007-02-05 909-658-2XXX 2000–2999Assigned FRONTIER CALIFORNIA INC. 2319 S BERNDINO CA
2007-02-05 909-658-3XXX 3000–3999Assigned FRONTIER CALIFORNIA INC. 2319 S BERNDINO CA
2007-01-22 909-203-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D CHINO CA
2007-01-22 909-203-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHINO CA
2007-01-19 909-201-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FONTANA CA
2007-01-19 909-201-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FONTANA CA
2007-01-19 909-486-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2007-01-19 909-486-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO 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.