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
2009-04-29 224-783-3XXX 3000–3999Assigned ILLINOIS BELL TEL CO 9329 ELGIN IL
2009-04-29 224-783-4XXX 4000–4999Assigned ILLINOIS BELL TEL CO 9329 ELGIN IL
2009-04-29 224-783-5XXX 5000–5999Assigned ILLINOIS BELL TEL CO 9329 ELGIN IL
2009-04-29 224-783-6XXX 6000–6999Assigned ILLINOIS BELL TEL CO 9329 ELGIN IL
2009-04-29 224-783-7XXX 7000–7999Assigned ILLINOIS BELL TEL CO 9329 ELGIN IL
2009-04-29 224-783-8XXX 8000–8999Assigned ILLINOIS BELL TEL CO 9329 ELGIN IL
2009-04-29 224-783-9XXX 9000–9999Assigned ILLINOIS BELL TEL CO 9329 ELGIN IL
2009-04-27 224-633-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARRINGTON IL
2009-04-23 224-725-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2009-04-23 224-725-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2009-04-17 224-730-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ZION IL
2009-04-16 224-829-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2009-04-08 224-531-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2009-04-03 224-542-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHEELING IL
2009-04-02 224-433-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LIBERTYVL IL
2009-04-01 224-725-4XXX 4000–4999Assigned ONVOY, LLC 224C DESPLAINES IL
2009-03-27 224-544-1XXX 1000–1999Assigned ONVOY, LLC 224C LAKEFOREST IL
2009-03-26 224-325-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELGIN IL
2009-03-26 224-325-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELGIN IL
2009-03-25 224-829-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ALGONQUIN IL
2009-02-12 224-357-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 CARY IL
2009-01-30 224-515-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEERFIELD IL
2009-01-28 224-353-0XXX 0000–0999Assigned ONVOY, LLC 224C ROSELLE IL
2009-01-26 224-325-3XXX 3000–3999Assigned ACCESS ONE, INC. - IL 5447 ELGIN IL
2009-01-26 224-698-2XXX 2000–2999Assigned ACCESS ONE, INC. - IL 5447 ROSELLE IL
2009-01-26 224-725-5XXX 5000–5999Assigned ACCESS ONE, INC. - IL 5447 DESPLAINES IL
2009-01-23 224-475-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUNDELEIN IL
2009-01-23 224-475-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUNDELEIN IL
2009-01-22 224-676-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J WHEELING IL
2009-01-22 224-795-5XXX 5000–5999Assigned ONVOY, LLC 224C ARLIGTNHTS IL
2009-01-16 224-216-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WINNETKA IL
2009-01-15 224-829-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2009-01-15 224-829-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2009-01-07 224-542-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHEELING IL
2009-01-07 224-542-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHEELING IL
2009-01-07 224-592-2XXX 2000–2999Assigned ILLINOIS BELL TEL CO 9329 SKOKIE IL
2009-01-07 224-592-3XXX 3000–3999Assigned ILLINOIS BELL TEL CO 9329 SKOKIE IL
2008-12-16 224-325-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2008-12-16 224-325-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2008-12-16 224-325-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2008-12-16 224-325-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2008-12-16 224-725-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DESPLAINES IL
2008-12-16 224-795-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2008-12-16 224-795-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2008-12-10 224-523-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2008-12-10 224-523-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2008-12-10 224-523-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2008-12-10 224-523-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2008-12-10 224-523-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ELGIN IL
2008-12-10 224-523-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 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.