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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2017-10-03 810-642-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C SMITHS CRK MI
2017-09-25 810-322-2XXX 2000–2999Assigned METROPCS, INC. 5562 LAPEER MI
2017-09-25 810-322-3XXX 3000–3999Assigned METROPCS, INC. 5562 LAPEER MI
2017-09-20 810-322-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2017-09-20 810-674-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E APPLEGATE MI
2017-09-15 810-538-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2017-08-08 810-263-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E BRIGHTON MI
2017-08-08 810-263-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E BRIGHTON MI
2017-08-08 810-263-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E BRIGHTON MI
2017-07-25 810-219-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT MI
2017-07-25 810-219-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT MI
2017-07-25 810-219-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT MI
2017-07-25 810-219-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT MI
2017-07-20 810-969-0XXX 0000–0999Assigned METROPCS, INC. 5562 LAPEER MI
2017-06-30 810-202-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C FLUSHING MI
2017-06-30 810-213-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C FLINT MI
2017-06-30 810-242-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2017-06-21 810-660-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 LAPEER MI
2017-06-21 810-660-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 LAPEER MI
2017-06-16 810-202-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J FLUSHING MI
2017-06-02 810-428-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDBLANC MI
2017-06-02 810-428-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDBLANC MI
2017-05-19 810-712-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CROSWELL MI
2017-05-11 810-432-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PORT HURON MI
2017-05-04 810-379-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E DAVISON MI
2017-04-27 810-258-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C RANKIN MI
2017-04-27 810-374-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C OTISVILLE MI
2017-04-27 810-543-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C MEMPHIS MI
2017-04-27 810-642-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C SMITHS CRK MI
2017-04-27 810-683-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C IMLAY CITY MI
2017-04-20 810-375-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C DRYDEN MI
2017-04-20 810-475-8XXX 8000–8999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G BROWN CITY MI
2017-03-21 810-242-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORT HURON MI
2017-03-16 810-263-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BRIGHTON MI
2017-03-16 810-263-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BRIGHTON MI
2017-03-15 810-432-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORT HURON MI
2017-02-24 810-263-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BRIGHTON MI
2017-01-23 810-660-0XXX 0000–0999Assigned METROPCS, INC. 5562 LAPEER MI
2017-01-12 810-206-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRIGHTON MI
2017-01-12 810-206-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRIGHTON MI
2016-12-29 810-634-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E NEWLOTHROP MI
2016-12-28 810-842-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 IMLAY CITY MI
2016-12-14 810-432-7XXX 7000–7999Assigned METROPCS, INC. 5562 PORT HURON MI
2016-12-07 810-272-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 LAPEER MI
2016-11-22 810-432-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PORT HURON MI
2016-11-17 810-425-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G PT SANILAC MI
2016-11-16 810-263-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BRIGHTON MI
2016-11-09 810-206-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BRIGHTON MI
2016-11-04 810-219-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT MI
2016-11-04 810-219-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT 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.