NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

22 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 6
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
2010-02-11 224-355-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2010-02-11 224-355-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2010-02-11 224-355-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2010-02-11 224-355-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2010-02-11 224-475-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MUNDELEIN IL
2010-02-11 224-585-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PARK RIDGE IL
2010-02-11 224-778-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUNDELEIN IL
2010-02-10 224-216-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WINNETKA IL
2010-02-10 224-306-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E NORTHBROOK IL
2010-02-10 224-357-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CARY IL
2010-02-10 224-366-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELK GROVE IL
2010-02-10 224-377-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HALF DAY IL
2010-02-10 224-603-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ANTIOCH IL
2010-02-10 224-698-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ROSELLE IL
2010-02-10 224-698-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ROSELLE IL
2010-02-10 224-698-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ROSELLE IL
2010-02-03 224-513-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LIBERTYVL IL
2010-02-03 224-633-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BARRINGTON IL
2010-02-03 224-789-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ZION IL
2010-02-02 224-286-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LAKEZURICH IL
2010-02-02 224-444-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LAKE VILLA IL
2010-02-02 224-544-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LAKEFOREST IL
2010-01-28 224-361-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2010-01-28 224-361-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2010-01-28 224-523-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2010-01-28 224-531-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2010-01-14 224-241-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2010-01-11 224-280-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2010-01-11 224-280-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2010-01-05 224-829-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2009-12-15 224-829-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2009-11-16 224-374-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2009-11-16 224-456-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2009-11-16 224-456-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2009-11-16 224-636-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2009-11-16 224-645-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2009-11-16 224-645-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2009-11-10 224-243-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOX LAKE IL
2009-11-10 224-243-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOX LAKE IL
2009-11-10 224-531-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2009-11-10 224-938-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2009-11-05 224-619-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J DEERFIELD IL
2009-11-04 224-338-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ROUND LAKE IL
2009-11-04 224-777-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J HAMPSHIRE IL
2009-11-03 224-216-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J WINNETKA IL
2009-11-02 224-377-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J HALF DAY IL
2009-11-02 224-544-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J LAKEFOREST IL
2009-11-02 224-655-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J BARRINGTON IL
2009-11-02 224-990-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J PLATO CTR IL
2009-10-29 224-677-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J LAKEZURICH 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.