NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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
2018-12-06 906-330-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C POWERS MI
2018-12-06 906-352-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C MENOMINEE MI
2018-12-06 906-356-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C ROCK MI
2018-12-06 906-359-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C PERKINS MI
2018-12-06 906-366-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C WATERSMEET MI
2018-12-06 906-369-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C CALUMET MI
2018-12-06 906-376-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C REPUBLIC MI
2018-12-06 906-384-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C CORNELL MI
2018-12-06 906-398-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ESCANABA MI
2018-12-06 906-422-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C MACKINACIS MI
2018-12-06 906-428-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C GLADSTONE MI
2018-12-06 906-448-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C IRON MT MI
2018-12-06 906-464-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C ISHPEMING MI
2018-12-06 906-474-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C RAPIDRIVER MI
2018-12-06 906-498-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C HERMANSVL MI
2018-12-06 906-523-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C HOUGHTON MI
2018-12-06 906-542-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C CHANNING MI
2018-12-06 906-569-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C TROUT LAKE MI
2018-12-06 906-586-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C CURTIS MI
2018-12-06 906-748-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C SALTSTMARI MI
2018-12-06 906-762-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C NEWBERRY MI
2018-12-06 906-767-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C IRONWOOD MI
2018-12-06 906-826-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C STEPHENSON MI
2018-12-06 906-970-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C NORWAY MI
2018-12-05 906-205-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C MARQUETTE MI
2018-12-04 906-214-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C IRON RIVER MI
2018-12-04 906-448-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C IRON MT MI
2018-11-28 906-936-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C MARQUETTE MI
2018-11-28 906-936-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C MARQUETTE MI
2018-11-26 906-229-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C WAKEFIELD MI
2018-11-20 906-477-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ENGADINE MI
2018-11-16 906-875-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 CRYSTALFLS MI
2018-11-14 906-345-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BIG BAY MI
2018-11-14 906-420-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GLADSTONE MI
2018-11-14 906-542-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 CHANNING MI
2018-11-08 906-767-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C IRONWOOD MI
2018-10-29 906-253-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 SALTSTMARI MI
2018-10-24 906-251-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 MARQUETTE MI
2018-10-23 906-212-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C ESCANABA MI
2018-10-22 906-242-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C NEGAUNEE MI
2018-10-16 906-356-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C ROCK MI
2018-10-10 906-661-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C AMASA MI
2018-10-02 906-205-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C MARQUETTE MI
2018-09-06 906-291-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C NEWBERRY MI
2018-08-29 906-242-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 NEGAUNEE MI
2018-08-29 906-748-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 SALTSTMARI MI
2018-08-21 906-729-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C CALUMET MI
2018-08-21 906-934-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 CALUMET MI
2018-06-27 906-205-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C MARQUETTE MI
2018-06-08 906-729-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D CALUMET MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.