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
2010-11-01 224-279-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WHEELING IL
2010-11-01 224-419-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2010-11-01 224-419-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2010-11-01 224-543-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HALF DAY IL
2010-11-01 224-699-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DUNDEE IL
2010-11-01 224-999-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E EVANSTON IL
2010-10-27 224-220-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 DESPLAINES IL
2010-10-27 224-619-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 DEERFIELD IL
2010-10-25 224-572-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2010-10-20 224-829-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2010-10-19 224-358-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUNDELEIN IL
2010-10-19 224-358-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUNDELEIN IL
2010-10-15 224-202-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ARLIGTNHTS IL
2010-10-15 224-202-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ARLIGTNHTS IL
2010-10-15 224-323-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ARLIGTNHTS IL
2010-10-15 224-323-9XXX 9000–9999Assigned ONVOY, LLC 224C ARLIGTNHTS IL
2010-10-15 224-387-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ARLIGTNHTS IL
2010-10-15 224-587-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ARLIGTNHTS IL
2010-10-14 224-239-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2010-10-11 224-279-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHEELING IL
2010-10-11 224-279-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHEELING IL
2010-10-07 224-276-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2010-10-07 224-276-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2010-09-30 224-202-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ARLIGTNHTS IL
2010-09-30 224-244-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DESPLAINES IL
2010-09-30 224-338-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ROUND LAKE IL
2010-09-30 224-360-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MUNDELEIN IL
2010-09-30 224-372-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LAKE VILLA IL
2010-09-30 224-585-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PARK RIDGE IL
2010-09-30 224-634-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BARRINGTON IL
2010-09-30 224-650-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HUNTLEY IL
2010-09-30 224-935-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SKOKIE IL
2010-09-28 224-419-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2010-09-24 224-244-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DESPLAINES IL
2010-09-23 224-935-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SKOKIE IL
2010-09-16 224-210-6XXX 6000–6999Assigned ONVOY, LLC 224C ARLIGTNHTS IL
2010-09-03 224-202-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ARLIGTNHTS IL
2010-09-03 224-277-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2010-09-03 224-277-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2010-09-03 224-634-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARRINGTON IL
2010-09-03 224-637-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C WAUKEGAN IL
2010-09-03 224-935-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SKOKIE IL
2010-09-01 224-513-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J LIBERTYVL IL
2010-08-30 224-221-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2010-08-30 224-221-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2010-08-30 224-223-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2010-08-24 224-637-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2010-08-23 224-241-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ALGONQUIN IL
2010-08-20 224-360-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MUNDELEIN IL
2010-08-16 224-888-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CARY 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.