NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 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
2011-04-25 323-998-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 11 CA
2011-04-25 323-999-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 03 CA
2011-04-25 323-999-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C LSAN DA 03 CA
2011-04-22 323-425-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 06 CA
2011-04-22 323-425-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 06 CA
2011-04-22 323-425-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 06 CA
2011-04-22 323-425-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 06 CA
2011-04-22 323-427-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D MONTEBELLO CA
2011-04-22 323-427-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D MONTEBELLO CA
2011-04-21 323-412-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 02 CA
2011-04-21 323-412-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 02 CA
2011-04-21 323-412-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 02 CA
2011-04-21 323-412-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 02 CA
2011-04-21 323-413-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 13 CA
2011-04-21 323-413-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 13 CA
2011-04-21 323-413-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 13 CA
2011-04-21 323-413-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 13 CA
2011-04-21 323-784-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 13 CA
2011-04-21 323-801-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 13 CA
2011-04-21 323-849-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 14 CA
2011-04-21 323-849-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 14 CA
2011-04-21 323-879-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 13 CA
2011-04-21 323-963-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D LSAN DA 14 CA
2011-04-20 323-210-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C LSAN DA 02 CA
2011-04-20 323-250-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LSAN DA 04 CA
2011-04-20 323-407-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C LSAN DA 02 CA
2011-04-14 323-558-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C MONTEBELLO CA
2011-04-11 323-407-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 02 CA
2011-04-11 323-407-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 02 CA
2011-04-11 323-524-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 08 CA
2011-04-11 323-524-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 08 CA
2011-04-11 323-524-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 08 CA
2011-04-11 323-544-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 08 CA
2011-04-08 323-250-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 04 CA
2011-04-08 323-250-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 04 CA
2011-04-08 323-250-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 04 CA
2011-04-08 323-391-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 14 CA
2011-04-08 323-391-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 14 CA
2011-04-08 323-391-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 14 CA
2011-04-08 323-391-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 14 CA
2011-04-08 323-647-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 05 CA
2011-04-08 323-796-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 05 CA
2011-04-08 323-800-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 05 CA
2011-04-04 323-364-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 06 CA
2011-04-04 323-364-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 06 CA
2011-04-04 323-364-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 06 CA
2011-04-04 323-364-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 06 CA
2011-04-04 323-364-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 06 CA
2011-04-04 323-364-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 06 CA
2011-04-04 323-364-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 06 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.