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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2014-03-20 224-601-8XXX 8000–8999Assigned ONVOY, LLC 224C SKOKIE IL
2014-03-19 224-814-5XXX 5000–5999Assigned ONVOY, LLC 224C ROUND LAKE IL
2014-03-17 224-864-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MUNDELEIN IL
2014-03-14 224-858-5XXX 5000–5999Assigned ONVOY, LLC 224C HUNTLEY IL
2014-03-13 224-334-3XXX 3000–3999Assigned ONVOY, LLC 224C ARLIGTNHTS IL
2014-03-11 224-704-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2014-03-11 224-704-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2014-03-11 224-704-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2014-03-11 224-704-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2014-03-11 224-704-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2014-03-11 224-788-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J ANTIOCH IL
2014-03-06 224-334-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-03-06 224-334-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-03-06 224-334-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-03-06 224-334-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-03-06 224-334-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-03-05 224-814-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ROUND LAKE IL
2014-02-27 224-408-3XXX 3000–3999Assigned ONVOY, LLC 224C WILMETTE IL
2014-02-19 224-218-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HAMPSHIRE IL
2014-02-19 224-310-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ARLIGTNHTS IL
2014-02-19 224-377-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HALF DAY IL
2014-02-19 224-424-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LIBERTYVL IL
2014-02-19 224-424-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LIBERTYVL IL
2014-02-19 224-888-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CARY IL
2014-02-19 224-993-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUCONDA IL
2014-02-13 224-404-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF ILLINOIS, LLC - IL 138G ELK GROVE IL
2014-02-11 224-404-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ELK GROVE IL
2014-02-06 224-633-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BARRINGTON IL
2014-02-04 224-326-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E NORTHBROOK IL
2014-02-04 224-326-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E NORTHBROOK IL
2014-02-04 224-326-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E NORTHBROOK IL
2014-02-04 224-326-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E NORTHBROOK IL
2014-01-30 224-777-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HAMPSHIRE IL
2014-01-30 224-901-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PISTAKHLDS IL
2014-01-30 224-990-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PLATO CTR IL
2014-01-29 224-310-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ARLIGTNHTS IL
2014-01-29 224-318-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ARLIGTNHTS IL
2014-01-29 224-677-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J LAKEZURICH IL
2014-01-29 224-706-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LAKEFOREST IL
2014-01-29 224-707-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HIGHLANDPK IL
2014-01-29 224-707-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HIGHLANDPK IL
2014-01-29 224-774-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ZION IL
2014-01-23 224-408-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WILMETTE IL
2014-01-23 224-432-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GLENVIEW IL
2014-01-23 224-702-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ZION IL
2014-01-23 224-702-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ZION IL
2014-01-23 224-702-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ZION IL
2014-01-14 224-407-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELGIN IL
2014-01-14 224-407-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELGIN IL
2014-01-14 224-407-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELGIN 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.