NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

12 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 608
ONVOY, LLC - WI 6
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 4
NEW CINGULAR WIRELESS PCS, LLC - IL 1
AHOI 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
2004-12-09 608-541-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J STOUGHTON WI
2004-12-09 608-541-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J STOUGHTON WI
2004-12-09 608-646-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J STOUGHTON WI
2004-12-09 608-646-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J STOUGHTON WI
2004-11-08 608-237-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J MADISON WI
2004-11-03 608-413-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CROSS PL WI
2004-10-26 608-203-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MIDDLETON WI
2004-10-26 608-205-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K STOUGHTON WI
2004-10-26 608-423-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CAMBRIDGE WI
2004-10-26 608-448-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BARABOO WI
2004-10-26 608-455-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BROOKLYN WI
2004-10-26 608-655-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MARSHALL WI
2004-10-26 608-676-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CLINTON WI
2004-10-26 608-764-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DEERFIELD WI
2004-10-26 608-882-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K EVANSVILLE WI
2004-10-26 608-884-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K EDGERTON WI
2004-10-21 608-647-0XXX 0000–0999Assigned UNITED STATES CELLULAR - WI 6274 RICHLD CTR WI
2004-10-20 608-844-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WISCONDLLS WI
2004-10-19 608-498-0XXX 0000–0999Assigned UNITED STATES CELLULAR - WI 6274 LA CROSSE WI
2004-10-19 608-498-1XXX 1000–1999Assigned UNITED STATES CELLULAR - WI 6274 LA CROSSE WI
2004-10-18 608-234-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2004-10-18 608-234-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2004-10-15 608-646-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J STOUGHTON WI
2004-10-15 608-646-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J STOUGHTON WI
2004-10-15 608-646-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J STOUGHTON WI
2004-10-15 608-646-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J STOUGHTON WI
2004-10-15 608-646-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J STOUGHTON WI
2004-10-15 608-646-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J STOUGHTON WI
2004-10-08 608-566-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTAGE WI
2004-09-23 608-397-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LA CROSSE WI
2004-09-21 608-397-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2004-09-21 608-397-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2004-09-15 608-234-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2004-09-15 608-234-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2004-08-26 608-234-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2004-08-23 608-436-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JANESVILLE WI
2004-08-05 608-407-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DODGEVILLE WI
2004-08-04 608-216-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2004-08-04 608-467-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2004-06-24 608-333-0XXX 0000–0999Assigned TDS METROCOM, LLC 520K MADISON WI
2004-06-03 608-216-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2004-05-25 608-330-0XXX 0000–0999Assigned UNITED STATES CELLULAR - WI 6274 PLATTEVL WI
2004-05-25 608-330-1XXX 1000–1999Assigned UNITED STATES CELLULAR - WI 6274 PLATTEVL WI
2004-05-25 608-330-2XXX 2000–2999Assigned UNITED STATES CELLULAR - WI 6274 PLATTEVL WI
2004-05-25 608-330-3XXX 3000–3999Assigned UNITED STATES CELLULAR - WI 6274 PLATTEVL WI
2004-05-07 608-406-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2004-05-07 608-406-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2004-05-07 608-728-0XXX 0000–0999Assigned UNITED STATES CELLULAR - WI 6274 JANESVILLE WI
2004-05-07 608-728-1XXX 1000–1999Assigned UNITED STATES CELLULAR - WI 6274 JANESVILLE WI
2004-05-07 608-728-2XXX 2000–2999Assigned UNITED STATES CELLULAR - WI 6274 JANESVILLE WI

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.