NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

21 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2011-06-07 224-699-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DUNDEE IL
2011-06-07 224-733-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2011-05-27 224-230-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2011-05-27 224-230-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2011-05-27 224-230-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2011-05-27 224-880-2XXX 2000–2999Assigned ILLINOIS BELL TEL CO 9329 LAKEFOREST IL
2011-05-27 224-880-3XXX 3000–3999Assigned ILLINOIS BELL TEL CO 9329 LAKEFOREST IL
2011-05-27 224-880-4XXX 4000–4999Assigned ILLINOIS BELL TEL CO 9329 LAKEFOREST IL
2011-05-26 224-227-1XXX 1000–1999Assigned FIRST COMMUNICATIONS, LLC 460K ELGIN IL
2011-05-26 224-227-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K ELGIN IL
2011-05-26 224-358-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUNDELEIN IL
2011-05-19 224-304-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ZION IL
2011-05-19 224-323-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ARLIGTNHTS IL
2011-05-19 224-323-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ARLIGTNHTS IL
2011-05-19 224-338-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ROUND LAKE IL
2011-05-19 224-372-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LAKE VILLA IL
2011-05-19 224-600-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ALGONQUIN IL
2011-05-19 224-655-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BARRINGTON IL
2011-05-19 224-733-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2011-05-12 224-279-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHEELING IL
2011-05-12 224-279-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHEELING IL
2011-05-12 224-600-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2011-05-11 224-276-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELGIN IL
2011-05-11 224-276-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELGIN IL
2011-05-11 224-276-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELGIN IL
2011-05-11 224-300-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DEERFIELD IL
2011-05-11 224-419-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2011-05-11 224-419-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2011-05-06 224-244-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DESPLAINES IL
2011-05-05 224-227-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2011-05-03 224-585-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J PARK RIDGE IL
2011-04-28 224-276-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2011-04-12 224-358-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUNDELEIN IL
2011-04-11 224-276-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2011-04-07 224-600-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2011-03-24 224-900-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHEELING IL
2011-03-22 224-765-3XXX 3000–3999Assigned ACCESS ONE, INC. - IL 5447 HIGHLANDPK IL
2011-03-18 224-358-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUNDELEIN IL
2011-03-16 224-216-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WINNETKA IL
2011-03-16 224-300-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEERFIELD IL
2011-03-08 224-733-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2011-03-08 224-733-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2011-03-08 224-800-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2011-03-08 224-800-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2011-03-07 224-777-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J HAMPSHIRE IL
2011-03-04 224-650-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HUNTLEY IL
2011-03-01 224-400-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2011-03-01 224-400-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2011-03-01 224-400-9XXX 9000–9999Assigned ONVOY, LLC 224C ARLIGTNHTS IL
2011-03-01 224-572-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.