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 810
ONVOY, LLCV - MI 402
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
2023-08-04 810-215-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C FENTON MI
2023-07-25 810-256-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C METAMORA MI
2023-07-14 810-276-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2023-07-14 810-276-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2023-07-14 810-276-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2023-07-14 810-380-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C FLUSHING MI
2023-07-14 810-727-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C DAVISON MI
2023-07-14 810-727-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C DAVISON MI
2023-07-14 810-727-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C DAVISON MI
2023-07-14 810-727-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C DAVISON MI
2023-07-14 810-727-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C DAVISON MI
2023-06-22 810-318-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C LAPEER MI
2023-06-22 810-319-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C RANKIN MI
2023-06-22 810-382-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C FLINT MI
2023-06-22 810-382-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C FLINT MI
2023-06-22 810-382-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C FLINT MI
2023-06-21 810-215-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C FENTON MI
2023-06-21 810-264-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C MEMPHIS MI
2023-06-21 810-286-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C NORTH BRCH MI
2023-06-21 810-306-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C BRIGHTON MI
2023-06-21 810-584-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C GRANDBLANC MI
2023-06-05 810-776-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C FLINT MI
2023-06-05 810-880-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C FLINT MI
2023-01-24 810-880-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C FLINT MI
2023-01-24 810-880-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C FLINT MI
2022-12-08 810-256-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C METAMORA MI
2022-11-29 810-286-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C NORTH BRCH MI
2022-11-15 810-880-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C FLINT MI
2022-11-15 810-880-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C FLINT MI
2022-11-04 810-261-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C RANKIN MI
2022-09-01 810-776-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C FLINT MI
2022-09-01 810-776-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C FLINT MI
2022-09-01 810-776-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C FLINT MI
2022-01-14 810-264-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C MEMPHIS MI
2021-11-15 810-261-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C RANKIN MI
2021-10-28 810-500-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C HADLEY MI
2021-10-28 810-500-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C HADLEY MI
2021-10-18 810-215-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C FENTON MI
2021-10-18 810-215-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C FENTON MI
2021-10-18 810-215-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C FENTON MI
2021-10-18 810-721-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C IMLAY CITY MI
2021-10-18 810-818-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C MONTROSE MI
2021-08-03 810-500-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C HADLEY MI
2021-07-22 810-380-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C FLUSHING MI
2021-07-22 810-380-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C FLUSHING MI
2021-06-25 810-256-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C METAMORA MI
2021-06-16 810-273-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C GOODRICH MI
2021-06-16 810-273-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C GOODRICH MI
2021-06-16 810-283-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C JEDDO MI
2021-06-16 810-283-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C JEDDO 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.