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
2015-08-03 810-788-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C YALE MI
2015-08-03 810-788-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C YALE MI
2015-07-28 810-289-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J ST CLAIR MI
2015-07-24 810-498-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDBLANC MI
2015-07-24 810-498-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDBLANC MI
2015-07-20 810-201-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C PT SANILAC MI
2015-07-20 810-544-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C CARSONVL MI
2015-07-20 810-641-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C SNOVER MI
2015-07-17 810-445-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDBLANC MI
2015-07-02 810-768-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C FLINT MI
2015-07-01 810-662-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PORT HURON MI
2015-06-16 810-285-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J FLINT MI
2015-06-16 810-662-2XXX 2000–2999Assigned METROPCS, INC. 5562 PORT HURON MI
2015-06-09 810-212-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K METAMORA MI
2015-06-09 810-669-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CAPAC MI
2015-06-09 810-797-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HADLEY MI
2015-06-05 810-285-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2015-06-05 810-285-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2015-05-15 810-634-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J NEWLOTHROP MI
2015-05-08 810-537-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANDUSKY MI
2015-04-20 810-888-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C GOODELLS MI
2015-03-23 810-445-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRANDBLANC MI
2015-03-23 810-445-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRANDBLANC MI
2015-03-23 810-445-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRANDBLANC MI
2015-03-23 810-445-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRANDBLANC MI
2015-03-23 810-445-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRANDBLANC MI
2015-03-20 810-662-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PORT HURON MI
2015-03-06 810-676-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MARINECITY MI
2015-01-29 810-493-2XXX 2000–2999Assigned METROPCS, INC. 5562 FLINT MI
2015-01-29 810-493-3XXX 3000–3999Assigned METROPCS, INC. 5562 FLINT MI
2015-01-29 810-493-4XXX 4000–4999Assigned METROPCS, INC. 5562 FLINT MI
2015-01-29 810-493-5XXX 5000–5999Assigned METROPCS, INC. 5562 FLINT MI
2015-01-29 810-493-6XXX 6000–6999Assigned METROPCS, INC. 5562 FLINT MI
2014-12-30 810-445-5XXX 5000–5999Assigned 123.NET, LLC 2550 GRANDBLANC MI
2014-12-15 810-339-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C FLINT MI
2014-12-15 810-339-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C FLINT MI
2014-11-13 810-226-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DAVISON MI
2014-11-13 810-226-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DAVISON MI
2014-11-13 810-226-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DAVISON MI
2014-11-13 810-226-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DAVISON MI
2014-11-13 810-226-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DAVISON MI
2014-11-13 810-226-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DAVISON MI
2014-11-13 810-226-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DAVISON MI
2014-11-13 810-226-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DAVISON MI
2014-11-11 810-221-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2014-11-11 810-221-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2014-11-11 810-221-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2014-11-11 810-221-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2014-11-11 810-221-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2014-11-11 810-221-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 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.