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
2014-09-24 608-380-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PRARIDCHIN WI
2014-09-23 608-352-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F JANESVILLE WI
2014-09-23 608-531-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F JANESVILLE WI
2014-09-18 608-422-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2014-09-18 608-447-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BRODHEAD WI
2014-09-18 608-881-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LA CROSSE WI
2014-09-18 608-960-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2014-09-18 608-960-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2014-09-18 608-960-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2014-09-15 608-304-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2014-09-15 608-304-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2014-09-15 608-475-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 RICHLD CTR WI
2014-09-15 608-790-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 LA CROSSE WI
2014-09-15 608-960-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2014-09-15 608-960-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2014-09-15 608-960-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2014-09-11 608-573-0XXX 0000–0999Assigned UNITED STATES CELLULAR - WI 6274 POYNETTE WI
2014-09-08 608-960-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2014-09-04 608-478-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SUNPRAIRIE WI
2014-09-04 608-960-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2014-09-04 608-960-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2014-08-21 608-518-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2014-08-21 608-518-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2014-08-18 608-422-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2014-08-18 608-422-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2014-08-14 608-287-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2014-08-14 608-294-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2014-08-14 608-422-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2014-08-14 608-490-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F EVANSVILLE WI
2014-08-13 608-459-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SPG GREEN WI
2014-08-05 608-284-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2014-08-05 608-459-5XXX 5000–5999Assigned UNITED STATES CELLULAR - WI 6274 SPG GREEN WI
2014-08-05 608-518-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2014-08-05 608-518-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2014-08-04 608-402-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARABOO WI
2014-08-04 608-580-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MILTON WI
2014-07-23 608-422-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2014-07-21 608-422-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MADISON WI
2014-07-08 608-852-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2014-07-08 608-852-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2014-07-08 608-864-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C BLAIR WI
2014-07-08 608-957-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2014-07-03 608-298-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2014-07-01 608-960-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2014-06-27 608-407-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DODGEVILLE WI
2014-06-23 608-422-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2014-06-13 608-424-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BELLEVILLE WI
2014-06-13 608-818-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONTELLO WI
2014-06-12 608-207-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BELOIT WI
2014-06-12 608-207-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BELOIT 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.