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 734
ONVOY SPECTRUM, LLC 85
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
2024-08-09 734-409-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H NOSYLVANIA MI
2024-07-02 734-541-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H NOSYLVANIA MI
2024-02-21 734-832-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H WILLIS MI
2024-02-21 734-937-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H WHITMORELK MI
2022-11-23 734-795-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H FLAT ROCK MI
2022-11-23 734-795-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H FLAT ROCK MI
2021-12-28 734-768-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H ANN ARBOR MI
2021-12-28 734-768-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ANN ARBOR MI
2021-12-28 734-768-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H ANN ARBOR MI
2021-12-28 734-768-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H ANN ARBOR MI
2021-12-22 734-254-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H PLYMOUTH MI
2021-12-22 734-737-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H PLYMOUTH MI
2021-12-22 734-862-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H PLYMOUTH MI
2021-12-22 734-991-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H WYANDOTTE MI
2021-12-20 734-337-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H YPSILANTI MI
2021-12-20 734-877-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H WAYNE MI
2021-12-20 734-877-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H WAYNE MI
2021-12-20 734-877-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H WAYNE MI
2021-11-02 734-236-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H ROCKWOOD MI
2021-11-02 734-299-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CARLETON MI
2021-11-02 734-299-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CARLETON MI
2021-11-02 734-348-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H FLAT ROCK MI
2021-11-02 734-406-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H ROMULUS MI
2021-11-02 734-406-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ROMULUS MI
2021-11-02 734-488-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H CHELSEA MI
2021-11-02 734-488-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CHELSEA MI
2021-11-02 734-526-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MILAN MI
2021-11-02 734-563-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H PINCKNEY MI
2021-11-02 734-563-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PINCKNEY MI
2021-11-02 734-607-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H LAMBERTVL MI
2021-11-02 734-607-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H LAMBERTVL MI
2021-11-02 734-969-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ROCKWOOD MI
2021-10-28 734-290-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H DUNDEE MI
2021-10-28 734-290-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H DUNDEE MI
2021-10-28 734-537-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MAYBEE MI
2021-10-28 734-537-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H MAYBEE MI
2021-10-28 734-584-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H GREGORY MI
2021-10-28 734-584-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H GREGORY MI
2021-10-28 734-704-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H MANCHESTER MI
2021-10-28 734-704-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MANCHESTER MI
2021-10-28 734-766-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H ERIE MI
2021-10-28 734-766-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H ERIE MI
2021-10-26 734-642-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H TRENTON MI
2021-10-26 734-642-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H TRENTON MI
2021-10-26 734-682-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H MONROE MI
2021-10-26 734-682-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H MONROE MI
2021-10-18 734-518-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H LIVONIA MI
2021-10-18 734-518-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H LIVONIA MI
2021-10-18 734-518-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H LIVONIA MI
2021-10-18 734-521-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H LIVONIA MI

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.