NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

21 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 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
2012-08-23 224-225-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2012-08-23 224-225-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2012-08-23 224-225-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2012-08-23 224-243-2XXX 2000–2999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2012-08-23 224-243-3XXX 3000–3999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2012-08-23 224-243-4XXX 4000–4999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2012-08-23 224-243-5XXX 5000–5999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2012-08-23 224-243-6XXX 6000–6999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2012-08-23 224-243-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2012-08-23 224-243-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2012-08-20 224-770-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BARRINGTON IL
2012-08-14 224-256-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2012-08-14 224-256-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2012-08-14 224-256-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2012-08-09 224-501-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2012-08-07 224-215-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WILMETTE IL
2012-08-07 224-215-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WILMETTE IL
2012-08-02 224-261-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2012-08-02 224-261-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2012-07-24 224-209-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2012-07-24 224-209-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2012-07-23 224-300-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DEERFIELD IL
2012-07-18 224-203-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2012-07-18 224-246-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2012-07-18 224-246-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2012-07-17 224-302-5XXX 5000–5999Assigned ILLINOIS BELL TEL CO 9329 WAUKEGAN IL
2012-07-16 224-203-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E NORTHBROOK IL
2012-07-16 224-324-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ARLIGTNHTS IL
2012-07-16 224-541-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E GRAYSLAKE IL
2012-07-16 224-858-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HUNTLEY IL
2012-07-16 224-990-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PLATO CTR IL
2012-07-10 224-803-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 NORTHBROOK IL
2012-07-06 224-303-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2012-07-03 224-214-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2012-07-02 224-251-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K SKOKIE IL
2012-06-26 224-203-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2012-06-26 224-203-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2012-06-26 224-205-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2012-06-26 224-803-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2012-06-26 224-803-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2012-06-26 224-803-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2012-06-26 224-803-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2012-06-26 224-803-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2012-06-26 224-803-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2012-06-18 224-250-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2012-06-18 224-250-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2012-06-18 224-250-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2012-06-08 224-206-1XXX 1000–1999Assigned FIRST COMMUNICATIONS, LLC 460K LIBERTYVL IL
2012-06-06 224-999-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J EVANSTON IL
2012-06-01 224-227-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL

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.