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
2013-03-20 909-330-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F ETIWANDA CA
2013-03-20 909-330-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F ETIWANDA CA
2013-03-20 909-345-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F DIAMONDBAR CA
2013-03-20 909-352-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MARSHALL CA
2013-03-20 909-352-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MARSHALL CA
2013-03-20 909-361-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F S BERNDINO CA
2013-03-20 909-371-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F FONTANA CA
2013-03-20 909-371-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F FONTANA CA
2013-03-20 909-589-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CRESTLINE CA
2013-03-20 909-635-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F ONTARIO CA
2013-03-20 909-647-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F HIGHLAND CA
2013-03-20 909-649-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F HIGHLAND CA
2013-03-20 909-784-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F POMONA CA
2013-03-20 909-806-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F S BERNDINO CA
2013-03-20 909-837-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F POMONA CA
2013-03-20 909-971-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CLAREMONT CA
2013-03-19 909-303-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K UPLAND CA
2013-03-19 909-315-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K CHINO CA
2013-03-19 909-328-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K REDLANDS CA
2013-03-19 909-330-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K ETIWANDA CA
2013-03-19 909-332-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K S BERNDINO CA
2013-03-19 909-345-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K DIAMONDBAR CA
2013-03-19 909-351-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K MENTONE CA
2013-03-19 909-352-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K MARSHALL CA
2013-03-19 909-766-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K POMONA CA
2013-03-19 909-918-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K CALIMESA CA
2013-03-19 909-972-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K ONTARIO CA
2013-03-19 909-990-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K RIALTO CA
2013-03-12 909-219-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K COLTON CA
2013-03-12 909-280-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K HIGHLAND CA
2013-03-12 909-340-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C BIGBEAR LK CA
2013-03-12 909-371-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K FONTANA CA
2013-03-06 909-361-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 S BERNDINO CA
2013-03-05 909-340-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F BIGBEAR LK CA
2013-03-05 909-351-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MENTONE CA
2013-03-05 909-358-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F ARROWHEAD CA
2013-03-05 909-360-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F UPLAND CA
2013-03-05 909-371-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2013-03-04 909-343-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2013-03-04 909-343-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2013-03-01 909-219-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C COLTON CA
2013-03-01 909-280-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C HIGHLAND CA
2013-03-01 909-315-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CHINO CA
2013-03-01 909-321-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C ONTARIO CA
2013-03-01 909-328-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C REDLANDS CA
2013-03-01 909-330-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C ETIWANDA CA
2013-03-01 909-340-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C BIGBEAR LK CA
2013-03-01 909-343-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C ARROWHEAD CA
2013-03-01 909-351-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C MENTONE CA
2013-03-01 909-352-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C MARSHALL 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.