NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

1 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 323
ONVOY, 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
2012-04-17 323-416-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MONTEBELLO CA
2012-04-17 323-416-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MONTEBELLO CA
2012-04-17 323-416-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MONTEBELLO CA
2012-04-17 323-416-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MONTEBELLO CA
2012-04-17 323-416-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MONTEBELLO CA
2012-04-13 323-427-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 MONTEBELLO CA
2012-04-13 323-458-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MONTEBELLO CA
2012-04-13 323-458-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MONTEBELLO CA
2012-04-13 323-458-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MONTEBELLO CA
2012-04-10 323-558-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MONTEBELLO CA
2012-04-10 323-558-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MONTEBELLO CA
2012-04-10 323-558-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MONTEBELLO CA
2012-04-10 323-614-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MONTEBELLO CA
2012-04-10 323-614-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MONTEBELLO CA
2012-04-05 323-358-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MONTEBELLO CA
2012-04-05 323-358-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D MONTEBELLO CA
2012-04-05 323-458-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D MONTEBELLO CA
2012-04-05 323-458-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D MONTEBELLO CA
2012-04-05 323-458-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D MONTEBELLO CA
2012-04-03 323-977-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LSAN DA 09 CA
2012-03-21 323-212-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 11 CA
2012-03-21 323-389-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 12 CA
2012-03-21 323-451-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 09 CA
2012-03-21 323-800-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 05 CA
2012-03-21 323-825-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 05 CA
2012-03-21 323-834-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 09 CA
2012-03-21 323-977-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 09 CA
2012-03-20 323-723-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LSAN DA 05 CA
2012-03-20 323-723-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LSAN DA 05 CA
2012-03-14 323-425-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LSAN DA 06 CA
2012-03-12 323-438-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LSAN DA 06 CA
2012-03-12 323-438-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C LSAN DA 06 CA
2012-03-12 323-438-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C LSAN DA 06 CA
2012-03-12 323-438-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C LSAN DA 06 CA
2012-03-12 323-438-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LSAN DA 06 CA
2012-03-12 323-844-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C LSAN DA 08 CA
2012-03-12 323-844-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C LSAN DA 08 CA
2012-03-12 323-844-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C LSAN DA 08 CA
2012-03-12 323-844-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LSAN DA 08 CA
2012-03-12 323-844-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C LSAN DA 08 CA
2012-03-12 323-844-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C LSAN DA 08 CA
2012-03-12 323-985-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C LSAN DA 08 CA
2012-03-12 323-985-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C LSAN DA 08 CA
2012-03-12 323-985-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LSAN DA 08 CA
2012-03-12 323-985-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C LSAN DA 08 CA
2012-03-09 323-473-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C LSAN DA 02 CA
2012-03-09 323-473-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C LSAN DA 02 CA
2012-03-09 323-473-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LSAN DA 02 CA
2012-03-09 323-473-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C LSAN DA 02 CA
2012-03-09 323-473-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C LSAN DA 02 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.