NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 820
ONVOY SPECTRUM, LLC 51
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
2025-01-02 820-209-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H GAVIOTA CA
2025-01-02 820-219-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H CONEJO CA
2025-01-02 820-224-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H NIPOMO CA
2025-01-02 820-227-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SANTAMARIA CA
2025-01-02 820-230-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H PASOROBLES CA
2025-01-02 820-380-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H PISMOBEACH CA
2025-01-02 820-400-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H PARKFIELD CA
2024-10-02 820-229-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SANBARBARA CA
2024-10-02 820-229-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SANBARBARA CA
2024-10-02 820-229-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SANBARBARA CA
2024-10-02 820-229-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SANBARBARA CA
2024-10-02 820-229-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SANBARBARA CA
2023-12-05 820-220-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H PIRU CA
2023-12-05 820-502-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H SIMIVALLEY CA
2023-12-05 820-842-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H OAKVIEW CA
2023-10-05 820-218-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H LOMPOC CA
2023-10-05 820-218-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H LOMPOC CA
2023-10-05 820-218-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H LOMPOC CA
2023-10-05 820-218-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H LOMPOC CA
2023-10-05 820-218-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H LOMPOC CA
2023-04-12 820-850-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H FILLMORE CA
2023-04-12 820-850-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H FILLMORE CA
2022-05-18 820-587-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SANBARBARA CA
2022-05-18 820-587-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H SANBARBARA CA
2022-02-09 820-587-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SANBARBARA CA
2022-02-09 820-587-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SANBARBARA CA
2021-11-17 820-336-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H GUADALUPE CA
2021-11-17 820-786-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H ATASCADERO CA
2021-11-17 820-786-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H ATASCADERO CA
2021-11-17 820-800-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CAYUCOS CA
2021-11-17 820-800-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CAYUCOS CA
2021-11-17 820-900-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H BRADLEY CA
2021-11-17 820-900-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H BRADLEY CA
2021-11-05 820-432-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H NEWBURYPRK CA
2021-11-05 820-432-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H NEWBURYPRK CA
2021-10-27 820-200-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H THOUSAOAKS CA
2021-10-27 820-200-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H THOUSAOAKS CA
2021-10-19 820-667-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H OXNARD CA
2021-10-19 820-667-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H OXNARD CA
2021-10-19 820-667-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H OXNARD CA
2021-10-19 820-667-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H OXNARD CA
2021-10-19 820-667-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H OXNARD CA
2021-06-26 820-299-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H CAMARILLO CA
2021-06-26 820-333-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H THOUSAOAKS CA
2021-06-26 820-345-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H EL RIO CA
2021-06-26 820-444-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H NEWBURYPRK CA
2021-06-26 820-732-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H VNTRA CNTL CA
2020-10-07 820-465-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H OXNARD CA
2020-06-17 820-666-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SNLUSOBSPO CA
2020-06-17 820-666-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SNLUSOBSPO CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.