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
2011-10-10 224-237-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2011-10-06 224-444-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J LAKE VILLA IL
2011-10-03 224-237-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2011-09-26 224-999-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EVANSTON IL
2011-09-21 224-600-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2011-09-19 224-203-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2011-09-15 224-254-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2011-09-15 224-999-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E EVANSTON IL
2011-09-14 224-246-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2011-09-12 224-243-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOX LAKE IL
2011-09-09 224-226-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-09 224-226-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-09 224-226-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-09 224-226-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-09 224-226-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-09 224-226-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-09 224-226-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-09 224-226-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-09 224-226-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-09 224-261-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-09 224-261-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-09 224-261-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-09 224-261-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-09 224-261-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-09 224-500-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2011-09-09 224-500-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2011-09-02 224-235-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-02 224-235-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-02 224-235-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-02 224-235-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-09-02 224-246-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-08-31 224-227-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J ELGIN IL
2011-08-30 224-500-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2011-08-29 224-227-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ELGIN IL
2011-08-17 224-500-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2011-08-17 224-500-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2011-08-16 224-235-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J NORTHBROOK IL
2011-08-16 224-400-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2011-08-15 224-246-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2011-08-15 224-246-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2011-08-15 224-246-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2011-08-15 224-246-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2011-08-15 224-250-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2011-08-15 224-400-4XXX 4000–4999Assigned ONVOY, LLC 224C ARLIGTNHTS IL
2011-08-08 224-355-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2011-08-08 224-358-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUNDELEIN IL
2011-08-08 224-383-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2011-08-08 224-383-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2011-08-08 224-500-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2011-08-02 224-372-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LAKE VILLA 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.