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 562
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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
2021-11-03 562-620-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LONG BEACH CA
2021-11-03 562-620-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C LONG BEACH CA
2021-11-03 562-620-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C LONG BEACH CA
2021-11-01 562-669-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C NORWALK CA
2021-11-01 562-669-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C NORWALK CA
2021-11-01 562-669-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C NORWALK CA
2021-11-01 562-689-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C LA HABRA CA
2021-10-26 562-579-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DOWNEY CA
2021-10-26 562-579-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DOWNEY CA
2021-10-26 562-579-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DOWNEY CA
2021-10-26 562-579-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DOWNEY CA
2021-10-26 562-579-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DOWNEY CA
2021-10-25 562-656-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PICORIVERA CA
2021-10-25 562-669-9XXX 9000–9999Assigned FRACTEL, LLC 965H NORWALK CA
2021-10-20 562-352-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H LA HABRA CA
2021-10-20 562-352-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H LA HABRA CA
2021-10-20 562-352-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H LA HABRA CA
2021-10-20 562-371-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H LA HABRA CA
2021-10-20 562-561-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C WHITTIER CA
2021-10-20 562-641-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H PICORIVERA CA
2021-10-20 562-654-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H PICORIVERA CA
2021-10-20 562-655-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H PICORIVERA CA
2021-10-20 562-655-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PICORIVERA CA
2021-10-20 562-655-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H PICORIVERA CA
2021-10-20 562-905-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H LA HABRA CA
2021-10-19 562-571-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H DOWNEY CA
2021-10-13 562-554-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H LONG BEACH CA
2021-10-13 562-578-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-10-13 562-578-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-10-13 562-578-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-10-11 562-538-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-10-11 562-575-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-10-11 562-575-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-10-11 562-575-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-10-11 562-575-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-10-08 562-365-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D LA HABRA CA
2021-10-05 562-554-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J LONG BEACH CA
2021-09-24 562-575-0XXX 0000–0999Assigned COMMIO, LLC 939H ALAMITOS CA
2021-09-24 562-575-1XXX 1000–1999Assigned COMMIO, LLC 939H ALAMITOS CA
2021-09-24 562-575-2XXX 2000–2999Assigned COMMIO, LLC 939H ALAMITOS CA
2021-09-24 562-575-3XXX 3000–3999Assigned COMMIO, LLC 939H ALAMITOS CA
2021-09-24 562-575-4XXX 4000–4999Assigned COMMIO, LLC 939H ALAMITOS CA
2021-09-24 562-575-5XXX 5000–5999Assigned COMMIO, LLC 939H ALAMITOS CA
2021-09-22 562-571-1XXX 1000–1999Assigned COMMIO, LLC 939H DOWNEY CA
2021-09-22 562-571-2XXX 2000–2999Assigned COMMIO, LLC 939H DOWNEY CA
2021-09-22 562-571-3XXX 3000–3999Assigned COMMIO, LLC 939H DOWNEY CA
2021-09-22 562-571-4XXX 4000–4999Assigned COMMIO, LLC 939H DOWNEY CA
2021-09-22 562-571-5XXX 5000–5999Assigned COMMIO, LLC 939H DOWNEY CA
2021-09-20 562-554-8XXX 8000–8999Assigned SKYE TELECOM LLC DBA SKYETEL 622J LONG BEACH CA
2021-09-17 562-571-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DOWNEY 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.