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
2006-07-17 224-944-8XXX 8000–8999Assigned METROPCS, INC. 5562 WAUKEGAN IL
2006-07-17 224-944-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2006-07-14 224-238-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2006-07-14 224-436-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LAKEFOREST IL
2006-07-10 224-735-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ARLIGTNHTS IL
2006-07-07 224-225-2XXX 2000–2999Assigned ACCESS ONE, INC. - IL 5447 FOX LAKE IL
2006-07-07 224-267-6XXX 6000–6999Assigned ACCESS ONE, INC. - IL 5447 ANTIOCH IL
2006-07-07 224-512-8XXX 8000–8999Assigned ACCESS ONE, INC. - IL 5447 BARRINGTON IL
2006-07-07 224-677-7XXX 7000–7999Assigned ACCESS ONE, INC. - IL 5447 LAKEZURICH IL
2006-07-06 224-353-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K ROSELLE IL
2006-07-03 224-603-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K ANTIOCH IL
2006-07-03 224-730-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K ZION IL
2006-06-30 224-222-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ELK GROVE IL
2006-06-30 224-222-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ELK GROVE IL
2006-06-30 224-222-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ELK GROVE IL
2006-06-30 224-222-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ELK GROVE IL
2006-06-30 224-222-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ELK GROVE IL
2006-06-27 224-357-5XXX 5000–5999Assigned ACCESS ONE, INC. - IL 5447 CARY IL
2006-06-23 224-735-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2006-06-23 224-735-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2006-06-23 224-735-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2006-06-22 224-260-3XXX 3000–3999Assigned ACCESS ONE, INC. - IL 5447 GLENVIEW IL
2006-06-22 224-377-2XXX 2000–2999Assigned ACCESS ONE, INC. - IL 5447 HALF DAY IL
2006-06-22 224-399-8XXX 8000–8999Assigned ACCESS ONE, INC. - IL 5447 WAUKEGAN IL
2006-06-19 224-222-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ELK GROVE IL
2006-06-19 224-222-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J ELK GROVE IL
2006-06-19 224-222-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J ELK GROVE IL
2006-06-16 224-730-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ZION IL
2006-06-06 224-388-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2006-06-01 224-588-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WHEELING IL
2006-05-31 224-654-2XXX 2000–2999Assigned ILLINOIS BELL TEL CO 9329 HUNTLEY IL
2006-05-26 224-381-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C WAUKEGAN IL
2006-05-24 224-388-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2006-05-24 224-433-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LIBERTYVL IL
2006-05-24 224-433-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LIBERTYVL IL
2006-05-23 224-554-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 DEERFIELD IL
2006-05-23 224-554-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 DEERFIELD IL
2006-05-23 224-554-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 DEERFIELD IL
2006-05-23 224-554-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 DEERFIELD IL
2006-05-23 224-554-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 DEERFIELD IL
2006-05-23 224-554-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 DEERFIELD IL
2006-05-23 224-554-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 DEERFIELD IL
2006-05-22 224-688-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-05-22 224-688-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-05-22 224-688-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-05-22 224-688-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-05-22 224-688-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-05-22 224-688-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-05-22 224-688-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-05-22 224-688-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK 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.