NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

0 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, all time — NPA 628
ONVOY SPECTRUM, LLC 72
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
2025-04-22 628-305-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SAN RAFAEL CA
2025-04-22 628-305-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SAN RAFAEL CA
2025-01-28 628-297-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SNFC MT-EV CA
2025-01-28 628-320-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H SNFC MT-EV CA
2025-01-02 628-291-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H MILLVALLEY CA
2025-01-02 628-307-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H IGNACIO CA
2025-01-02 628-766-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H STNSN-BLNS CA
2024-07-22 628-265-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H INVERNESS CA
2024-07-22 628-279-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SAUSALITO CA
2024-07-22 628-293-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H NICASIO CA
2024-07-22 628-294-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H NOVATO CA
2024-07-22 628-302-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H CORTEMADRA CA
2024-07-22 628-304-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SNFC JUNPR CA
2024-07-22 628-726-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H SNFC CNTRL CA
2024-07-22 628-977-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SNFC MT-EV CA
2023-10-03 628-281-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SNFC CNTRL CA
2023-10-03 628-281-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H SNFC CNTRL CA
2023-10-03 628-289-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H SNFC CNTRL CA
2023-10-03 628-289-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SNFC CNTRL CA
2023-10-03 628-789-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H SNFC CNTRL CA
2023-09-06 628-289-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H SNFC CNTRL CA
2022-07-15 628-488-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H SNFC CNTRL CA
2022-07-15 628-488-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H SNFC CNTRL CA
2022-01-24 628-313-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H SAN RAFAEL CA
2021-11-15 628-587-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H NOVATO CA
2021-11-15 628-587-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H NOVATO CA
2021-11-15 628-842-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CORTEMADRA CA
2021-11-15 628-842-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CORTEMADRA CA
2021-11-15 628-866-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H BELVEDERE CA
2021-11-15 628-866-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BELVEDERE CA
2021-10-20 628-667-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SAN RAFAEL CA
2021-10-15 628-272-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H POINTREYES CA
2021-10-15 628-272-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H POINTREYES CA
2021-10-15 628-388-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H INVERNESS CA
2021-10-15 628-388-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H INVERNESS CA
2021-10-15 628-399-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SNFC MT-EV CA
2021-10-15 628-577-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H NICASIO CA
2021-10-15 628-577-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H NICASIO CA
2021-10-15 628-788-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SNFC MT-EV CA
2021-10-15 628-788-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SNFC MT-EV CA
2021-10-15 628-788-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SNFC MT-EV CA
2021-10-15 628-788-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H SNFC MT-EV CA
2021-10-13 628-299-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H SNFC JUNPR CA
2021-10-13 628-299-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SNFC JUNPR CA
2021-10-13 628-299-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SNFC JUNPR CA
2021-10-13 628-299-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SNFC JUNPR CA
2021-10-13 628-299-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SNFC JUNPR CA
2021-10-08 628-699-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H SAUSALITO CA
2021-10-08 628-699-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SAUSALITO CA
2021-10-08 628-699-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SAUSALITO 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.