NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

14 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, last 30 days — NPA 810
NEW CINGULAR WIRELESS PCS, LLC - IL 13
EXIANT COMMUNICATIONS LLC 1
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
2021-06-17 810-261-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G RANKIN MI
2021-06-17 810-380-0XXX 0000–0999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G FLUSHING 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
2021-06-16 810-284-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C LAPEER MI
2021-06-16 810-284-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C LAPEER MI
2021-06-16 810-284-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C LAPEER MI
2021-06-16 810-284-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C LAPEER MI
2021-06-16 810-286-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C NORTH BRCH MI
2021-06-16 810-286-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C NORTH BRCH MI
2021-06-16 810-314-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2021-06-16 810-314-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2021-06-16 810-314-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2021-06-16 810-314-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2021-06-15 810-384-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J EMMETT MI
2021-06-15 810-721-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J IMLAY CITY MI
2021-06-14 810-380-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C FLUSHING MI
2021-06-14 810-380-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C FLUSHING MI
2021-06-14 810-440-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C CLIMTMORRS MI
2021-06-14 810-440-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C CLIMTMORRS MI
2021-06-14 810-440-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C CLIMTMORRS MI
2021-06-14 810-440-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C CLIMTMORRS MI
2021-05-26 810-440-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C CLIMTMORRS MI
2021-05-26 810-440-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C CLIMTMORRS MI
2021-05-26 810-440-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C CLIMTMORRS MI
2021-05-26 810-440-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C CLIMTMORRS MI
2021-05-20 810-204-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2021-05-20 810-320-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2021-05-20 810-320-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2021-05-20 810-320-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2021-05-20 810-380-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H FLUSHING MI
2021-05-18 810-204-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H PORT HURON MI
2021-05-18 810-261-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H RANKIN MI
2021-05-18 810-264-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H MEMPHIS MI
2021-05-18 810-458-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H LINDEN MI
2021-05-18 810-537-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SANDUSKY MI
2021-05-18 810-634-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H NEWLOTHROP MI
2021-05-18 810-642-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H SMITHS CRK MI
2021-05-18 810-645-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H PT SANILAC MI
2021-05-18 810-740-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H ST CLAIR MI
2021-05-18 810-788-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H YALE MI
2021-05-18 810-818-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H MONTROSE MI
2021-05-18 810-884-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H MARINECITY MI
2021-05-17 810-215-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H FENTON MI
2021-05-17 810-246-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H LAPEER MI
2021-05-17 810-254-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H GRANDBLANC MI
2021-05-17 810-266-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BYRON MI
2021-05-17 810-279-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H HARTLAND 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.