NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

14 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 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
2016-04-11 810-335-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K ALGONAC MI
2016-04-05 810-901-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C SANDUSKY MI
2016-04-05 810-901-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C SANDUSKY MI
2016-04-04 810-498-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDBLANC MI
2016-04-04 810-498-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDBLANC MI
2016-03-22 810-215-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FENTON MI
2016-03-16 810-657-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C CARSONVL MI
2016-03-16 810-657-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C CARSONVL MI
2016-03-16 810-672-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C SNOVER MI
2016-03-16 810-672-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C SNOVER MI
2016-03-15 810-337-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J FLINT MI
2016-03-15 810-359-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C LEXINGTON MI
2016-03-15 810-359-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C LEXINGTON MI
2016-03-15 810-878-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C CROSWELL MI
2016-03-15 810-878-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C CROSWELL MI
2016-03-15 810-891-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C SANDUSKY MI
2016-03-15 810-891-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C SANDUSKY MI
2016-03-14 810-388-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORT HURON MI
2016-03-14 810-662-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORT HURON MI
2016-03-11 810-321-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E JEDDO MI
2016-03-07 810-378-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C PECK MI
2016-03-07 810-378-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C PECK MI
2016-03-04 810-202-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C FLUSHING MI
2016-03-04 810-202-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C FLUSHING MI
2016-03-02 810-209-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C BYRON MI
2016-03-02 810-209-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C BYRON MI
2016-03-02 810-368-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C CLIMTMORRS MI
2016-03-02 810-368-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C CLIMTMORRS MI
2016-03-02 810-425-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C PT SANILAC MI
2016-03-02 810-425-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C PT SANILAC MI
2016-03-02 810-699-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C APPLEGATE MI
2016-03-02 810-699-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C APPLEGATE MI
2016-03-01 810-206-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C BRIGHTON MI
2016-03-01 810-206-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C BRIGHTON MI
2016-03-01 810-279-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C HARTLAND MI
2016-03-01 810-279-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C HARTLAND MI
2016-02-29 810-289-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C ST CLAIR MI
2016-02-29 810-289-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C ST CLAIR MI
2016-02-29 810-420-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C MARINECITY MI
2016-02-29 810-498-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C GRANDBLANC MI
2016-02-29 810-498-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C GRANDBLANC MI
2016-02-29 810-643-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C MARINECITY MI
2016-02-29 810-734-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C ALGONAC MI
2016-02-29 810-734-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C ALGONAC MI
2016-02-29 810-936-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C FENTON MI
2016-02-29 810-936-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C FENTON MI
2016-02-23 810-277-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C LAPEER MI
2016-02-23 810-277-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C LAPEER MI
2016-02-23 810-350-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E MONTROSE MI
2016-02-23 810-881-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PECK 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.