NumberResearch Membership · Data 09/22/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/22/2026

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 616
ONVOY SPECTRUM, LLC 70
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
2024-04-19 616-626-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BYRON CTR MI
2021-12-30 616-699-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2021-12-30 616-699-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2021-12-22 616-612-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H GRANDHAVEN MI
2021-11-03 616-282-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H LOWELL MI
2021-11-03 616-282-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H LOWELL MI
2021-11-03 616-310-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H COOPERSVL MI
2021-11-03 616-314-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ADA MI
2021-11-03 616-314-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ADA MI
2021-11-03 616-343-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H GREENVILLE MI
2021-11-03 616-343-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H GREENVILLE MI
2021-11-03 616-348-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CALEDONIA MI
2021-11-03 616-348-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H CALEDONIA MI
2021-11-03 616-358-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CEDAR SPG MI
2021-11-03 616-358-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H CEDAR SPG MI
2021-11-03 616-879-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H ZEELAND MI
2021-11-03 616-879-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H ZEELAND MI
2021-10-29 616-273-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H MARNE MI
2021-10-29 616-273-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MARNE MI
2021-10-29 616-898-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ALTO MI
2021-10-29 616-898-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H ALTO MI
2021-10-29 616-984-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H TRUFANT MI
2021-10-20 616-321-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H HOLLAND MI
2021-10-20 616-321-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H HOLLAND MI
2021-06-11 616-387-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2021-06-11 616-387-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2021-06-11 616-387-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2021-06-11 616-387-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2021-06-11 616-387-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2021-06-11 616-493-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2021-06-11 616-752-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2021-05-25 616-661-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SPARTA MI
2021-05-24 616-210-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ZEELAND MI
2021-05-24 616-266-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H TRUFANT MI
2021-05-24 616-400-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SARANAC MI
2021-05-24 616-545-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H ORLEANS MI
2021-05-24 616-557-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H SAND LAKE MI
2021-05-24 616-747-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H ROCKFORD MI
2021-05-24 616-877-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H MOLINE MI
2021-05-21 616-601-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H FREEPORT MI
2021-05-20 616-207-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H LOWELL MI
2021-05-20 616-236-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H GREENVILLE MI
2021-05-20 616-273-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H MARNE MI
2021-05-20 616-310-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H COOPERSVL MI
2021-05-20 616-321-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H HOLLAND MI
2021-05-20 616-385-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H KENT CITY MI
2021-05-20 616-441-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H LAKEODESSA MI
2021-05-20 616-483-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H DUTTON MI
2021-05-20 616-489-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H IONIA MI
2021-05-20 616-524-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H GRATTAN MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.