NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

1 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 906
OPENTACT INC. 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
2020-01-31 906-371-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C CHAMPION MI
2020-01-31 906-474-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C RAPIDRIVER MI
2020-01-22 906-296-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C LAKELINDEN MI
2020-01-22 906-663-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C BESSEMER MI
2019-12-18 906-675-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 IRONWOOD MI
2019-10-02 906-299-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOUGHTON MI
2019-07-17 906-241-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ESCANABA MI
2019-07-16 906-212-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 ESCANABA MI
2019-07-16 906-275-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 HOUGHTON MI
2019-07-16 906-352-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 MENOMINEE MI
2019-07-16 906-729-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 CALUMET MI
2019-07-16 906-767-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 IRONWOOD MI
2019-07-16 906-825-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 GLADSTONE MI
2019-07-16 906-826-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 STEPHENSON MI
2019-07-09 906-372-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 GWINN MI
2019-07-09 906-401-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 NEGAUNEE MI
2019-07-09 906-448-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 IRON MT MI
2019-06-06 906-398-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ESCANABA MI
2019-05-23 906-243-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MASS MI
2019-05-23 906-390-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ONTONAGON MI
2019-05-23 906-412-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WHITE PINE MI
2019-05-23 906-522-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K EWEN MI
2019-05-06 906-330-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C POWERS MI
2019-05-06 906-395-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BARAGA MI
2019-04-26 906-275-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C HOUGHTON MI
2019-04-19 906-290-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C MENOMINEE MI
2019-04-17 906-936-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C MARQUETTE MI
2019-04-10 906-826-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C STEPHENSON MI
2019-04-04 906-256-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C GWINN MI
2019-04-04 906-373-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C BIG BAY MI
2019-02-22 906-293-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NEWBERRY MI
2018-12-19 906-826-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E STEPHENSON MI
2018-12-17 906-262-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C TROUT LAKE MI
2018-12-13 906-257-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C CRYSTALFLS MI
2018-12-11 906-292-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C BREVORT MI
2018-12-11 906-339-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C CHAMPION MI
2018-12-11 906-365-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C BERGLAND MI
2018-12-11 906-373-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C BIG BAY MI
2018-12-11 906-466-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C BARK RIVER MI
2018-12-11 906-661-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C AMASA MI
2018-12-11 906-667-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C BESSEMER MI
2018-12-06 906-224-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C WAKEFIELD MI
2018-12-06 906-242-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C NEGAUNEE MI
2018-12-06 906-256-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C GWINN MI
2018-12-06 906-284-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C IRON RIVER MI
2018-12-06 906-287-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C ENGADINE MI
2018-12-06 906-289-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C KEWEENAW MI
2018-12-06 906-296-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C LAKELINDEN MI
2018-12-06 906-298-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C ST IGNACE MI
2018-12-06 906-323-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C MICHIGAMME MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.