NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

14 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2007-01-17 810-355-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BRIGHTON MI
2007-01-17 810-370-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BYRON MI
2007-01-17 810-374-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K OTISVILLE MI
2007-01-17 810-375-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DRYDEN MI
2007-01-17 810-407-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FLINT MI
2007-01-17 810-412-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DAVISON MI
2007-01-17 810-458-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LINDEN MI
2007-01-17 810-545-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K COLUMBIAVL MI
2007-01-17 810-564-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CLIMTMORRS MI
2007-01-17 810-644-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SWARTZ CRK MI
2007-01-17 810-660-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LAPEER MI
2007-01-17 810-721-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K IMLAY CITY MI
2007-01-17 810-771-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRANDBLANC MI
2007-01-17 810-867-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FLUSHING MI
2007-01-16 810-479-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 PORT HURON MI
2007-01-16 810-956-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 PORT HURON MI
2007-01-12 810-748-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ALGONAC MI
2007-01-08 810-407-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J FLINT MI
2007-01-08 810-407-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J FLINT MI
2007-01-08 810-407-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J FLINT MI
2007-01-08 810-515-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J FLINT MI
2007-01-05 810-208-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FENTON MI
2006-12-08 810-875-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2006-12-08 810-875-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2006-12-06 810-360-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BRIGHTON MI
2006-12-06 810-820-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 FLINT MI
2006-12-05 810-412-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 DAVISON MI
2006-11-29 810-360-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BRIGHTON MI
2006-11-29 810-360-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BRIGHTON MI
2006-11-27 810-887-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 PORT HURON MI
2006-11-27 810-887-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 PORT HURON MI
2006-11-17 810-366-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 DECKERVL MI
2006-11-08 810-535-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 MEMPHIS MI
2006-11-03 810-207-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C HARTLAND MI
2006-11-03 810-835-4XXX 4000–4999Assigned 123.NET, LLC 2550 FLINT MI
2006-11-01 810-370-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C BYRON MI
2006-11-01 810-522-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C BRIGHTON MI
2006-11-01 810-728-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C LAPEER MI
2006-10-24 810-835-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2006-10-24 810-835-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2006-10-20 810-201-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 PT SANILAC MI
2006-10-20 810-346-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BROWN CITY MI
2006-10-20 810-678-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 METAMORA MI
2006-10-10 810-941-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PORT HURON MI
2006-10-06 810-965-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 FLINT MI
2006-10-06 810-965-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 FLINT MI
2006-10-06 810-965-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 FLINT MI
2006-10-06 810-965-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 FLINT MI
2006-09-22 810-875-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J FLINT MI
2006-09-22 810-877-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J FLINT MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.