NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

21 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 224
NEW CINGULAR WIRELESS PCS, LLC - IL 11
ONVOY, LLC 5
VERSATEL LLC 1
INTRADO COMMUNICATIONS, LLC 1
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
2013-07-23 224-253-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2013-07-23 224-253-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2013-07-23 224-253-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2013-07-23 224-253-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2013-07-23 224-256-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2013-07-19 224-308-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ROUND LAKE IL
2013-07-19 224-308-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ROUND LAKE IL
2013-07-19 224-412-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2013-07-16 224-415-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2013-07-16 224-415-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2013-07-16 224-415-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2013-07-11 224-813-3XXX 3000–3999Assigned ONVOY, LLC 224C DEERFIELD IL
2013-07-10 224-336-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-10 224-336-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-10 224-336-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-10 224-336-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-10 224-336-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-10 224-336-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-10 224-336-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-10 224-336-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-10 224-336-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-10 224-413-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2013-07-10 224-415-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-10 224-415-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-10 224-415-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-10 224-415-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-10 224-415-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-10 224-415-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-10 224-432-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2013-07-10 224-432-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2013-07-10 224-432-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2013-07-10 224-813-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEERFIELD IL
2013-07-09 224-303-1XXX 1000–1999Assigned ACCESS ONE, INC. - IL 5447 WAUKEGAN IL
2013-07-09 224-303-2XXX 2000–2999Assigned ACCESS ONE, INC. - IL 5447 WAUKEGAN IL
2013-07-09 224-303-3XXX 3000–3999Assigned ACCESS ONE, INC. - IL 5447 WAUKEGAN IL
2013-07-05 224-205-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-05 224-302-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2013-07-05 224-302-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2013-07-05 224-316-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-05 224-316-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-05 224-316-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-05 224-316-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-05 224-316-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-05 224-316-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2013-07-03 224-802-3XXX 3000–3999Assigned ONVOY, LLC 224C DUNDEE IL
2013-07-01 224-307-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EVANSTON IL
2013-06-28 224-252-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E GRAYSLAKE IL
2013-06-28 224-253-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2013-06-28 224-253-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2013-06-27 224-205-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 NORTHBROOK IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.