NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

2 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 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
2013-08-14 909-485-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2013-08-02 909-454-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2013-08-02 909-454-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2013-08-02 909-454-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2013-08-02 909-454-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2013-08-01 909-326-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D POMONA CA
2013-07-31 909-378-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 DIAMONDBAR CA
2013-07-30 909-600-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2013-07-30 909-600-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2013-07-23 909-360-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K UPLAND CA
2013-07-23 909-562-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D RIALTO CA
2013-07-22 909-306-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K CHINO CA
2013-07-22 909-333-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K FONTANA CA
2013-07-22 909-340-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 BIGBEAR LK CA
2013-07-16 909-371-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2013-07-15 909-312-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 REDLANDS CA
2013-06-28 909-371-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2013-06-28 909-453-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2013-06-25 909-918-2XXX 2000–2999Assigned FRONTIER CALIFORNIA INC. 2319 CALIMESA CA
2013-06-18 909-345-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DIAMONDBAR CA
2013-06-17 909-485-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2013-06-14 909-375-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BIGBEAR CY CA
2013-06-12 909-453-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K S BERNDINO CA
2013-06-11 909-371-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K FONTANA CA
2013-06-07 909-315-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CHINO CA
2013-05-14 909-375-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BIGBEAR CY CA
2013-05-10 909-361-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C S BERNDINO CA
2013-05-10 909-677-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C S BERNDINO CA
2013-05-07 909-344-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2013-05-06 909-352-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MARSHALL CA
2013-05-03 909-343-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ARROWHEAD CA
2013-05-01 909-321-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C ONTARIO CA
2013-04-15 909-326-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E POMONA CA
2013-04-08 909-325-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CHINO CA
2013-04-08 909-325-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CHINO CA
2013-04-08 909-372-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CALIMESA CA
2013-04-08 909-372-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CALIMESA CA
2013-04-08 909-632-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E POMONA CA
2013-04-03 909-254-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 COLTON CA
2013-04-03 909-990-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F RIALTO CA
2013-04-03 909-990-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F RIALTO CA
2013-03-27 909-324-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F RUNNINGSPG CA
2013-03-27 909-324-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F RUNNINGSPG CA
2013-03-25 909-929-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K CLAREMONT CA
2013-03-20 909-219-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F COLTON CA
2013-03-20 909-219-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F COLTON CA
2013-03-20 909-281-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F BIGBEAR CY CA
2013-03-20 909-281-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F BIGBEAR CY CA
2013-03-20 909-328-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F REDLANDS CA
2013-03-20 909-328-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F REDLANDS 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.