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
2019-02-27 810-428-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C GRANDBLANC MI
2019-02-27 810-442-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C DECKERVL MI
2019-02-27 810-442-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C DECKERVL MI
2019-02-27 810-631-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C OTISVILLE MI
2019-02-27 810-634-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C NEWLOTHROP MI
2019-02-27 810-638-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C NEWLOTHROP MI
2019-02-27 810-641-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C SNOVER MI
2019-02-27 810-644-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C SWARTZ CRK MI
2019-02-27 810-644-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C SWARTZ CRK MI
2019-02-27 810-645-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C PT SANILAC MI
2019-02-27 810-645-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C PT SANILAC MI
2019-02-27 810-672-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C SNOVER MI
2019-02-27 810-676-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C MARINECITY MI
2019-02-27 810-676-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C MARINECITY MI
2019-02-27 810-788-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C YALE MI
2019-02-27 810-788-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C YALE MI
2019-02-27 810-815-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C LEXINGTON MI
2019-02-27 810-818-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C MONTROSE MI
2019-02-27 810-842-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C IMLAY CITY MI
2019-02-27 810-842-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C IMLAY CITY MI
2019-02-27 810-957-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C LINDEN MI
2019-02-27 810-957-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C LINDEN MI
2019-02-27 810-991-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C HARTLAND MI
2019-02-27 810-991-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C HARTLAND MI
2019-02-19 810-209-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C BYRON MI
2019-02-19 810-370-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C BYRON MI
2019-02-19 810-379-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C DAVISON MI
2019-02-19 810-379-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C DAVISON MI
2019-02-19 810-710-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C CARSONVL MI
2019-02-19 810-710-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C CARSONVL MI
2019-02-19 810-748-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C ALGONAC MI
2019-02-19 810-748-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C ALGONAC MI
2019-02-19 810-819-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C BRIGHTON MI
2019-02-19 810-819-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C BRIGHTON MI
2019-02-12 810-289-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ST CLAIR MI
2019-02-11 810-213-8XXX 8000–8999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G FLINT MI
2019-01-29 810-529-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2018-12-04 810-818-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E MONTROSE MI
2018-11-28 810-392-4XXX 4000–4999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G MEMPHIS MI
2018-11-28 810-510-5XXX 5000–5999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G COLUMBIAVL MI
2018-11-28 810-669-2XXX 2000–2999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G CAPAC MI
2018-11-28 810-676-6XXX 6000–6999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G MARINECITY MI
2018-11-28 810-827-2XXX 2000–2999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G EMMETT MI
2018-11-01 810-263-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BRIGHTON MI
2018-10-26 810-202-5XXX 5000–5999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G FLUSHING MI
2018-10-26 810-242-1XXX 1000–1999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G PORT HURON MI
2018-10-26 810-270-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G NORTH BRCH MI
2018-10-01 810-212-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G METAMORA MI
2018-10-01 810-267-8XXX 8000–8999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G LAPEER MI
2018-09-28 810-255-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HADLEY 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.