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
2012-11-13 810-852-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 BRIGHTON MI
2012-11-06 810-643-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 MARINECITY MI
2012-10-25 810-634-0XXX 0000–0999Assigned DAYSTARR LLC DBA DAYSTARR COMMUNICATIONS 993L NEWLOTHROP MI
2012-10-22 810-366-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E DECKERVL MI
2012-10-19 810-228-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-10-19 810-228-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-10-19 810-228-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-10-19 810-475-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BROWN CITY MI
2012-09-25 810-350-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MONTROSE MI
2012-09-25 810-636-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GOODRICH MI
2012-09-20 810-476-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E APPLEGATE MI
2012-09-20 810-553-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2012-09-14 810-292-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2012-09-14 810-740-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C ST CLAIR MI
2012-09-05 810-292-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORT HURON MI
2012-08-27 810-969-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LAPEER MI
2012-08-21 810-834-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 LAPEER MI
2012-08-10 810-335-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONAC MI
2012-08-10 810-728-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2012-08-01 810-285-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 FLINT MI
2012-08-01 810-285-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 FLINT MI
2012-08-01 810-285-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 FLINT MI
2012-08-01 810-285-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 FLINT MI
2012-08-01 810-285-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 FLINT MI
2012-07-26 810-327-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E JEDDO MI
2012-07-19 810-228-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-07-19 810-259-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-07-19 810-259-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-07-19 810-259-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-07-19 810-259-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-07-19 810-259-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-07-13 810-214-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E DAVISON MI
2012-07-13 810-772-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E BRIGHTON MI
2012-07-10 810-447-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-07-10 810-447-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-07-10 810-447-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-07-10 810-447-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-07-10 810-447-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-07-10 810-447-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-07-10 810-447-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-07-10 810-553-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-07-10 810-553-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-07-10 810-553-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2012-06-19 810-207-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C HARTLAND MI
2012-06-19 810-267-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C LAPEER MI
2012-06-19 810-269-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C SANDUSKY MI
2012-06-19 810-359-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C LEXINGTON MI
2012-06-19 810-368-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C CLIMTMORRS MI
2012-06-19 810-378-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C PECK MI
2012-06-19 810-390-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C FENTON 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.