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
2021-02-02 224-263-6XXX 6000–6999Assigned ONVOY, LLC 224C HUNTLEY IL
2021-02-02 224-263-7XXX 7000–7999Assigned ONVOY, LLC 224C HUNTLEY IL
2021-02-02 224-328-5XXX 5000–5999Assigned ONVOY, LLC 224C WINNETKA IL
2021-02-02 224-328-6XXX 6000–6999Assigned ONVOY, LLC 224C WINNETKA IL
2021-02-02 224-328-7XXX 7000–7999Assigned ONVOY, LLC 224C WINNETKA IL
2021-02-02 224-335-4XXX 4000–4999Assigned ONVOY, LLC 224C ANTIOCH IL
2021-02-02 224-335-5XXX 5000–5999Assigned ONVOY, LLC 224C ANTIOCH IL
2021-02-02 224-335-6XXX 6000–6999Assigned ONVOY, LLC 224C ANTIOCH IL
2021-02-02 224-344-5XXX 5000–5999Assigned ONVOY, LLC 224C WILMETTE IL
2021-02-02 224-344-6XXX 6000–6999Assigned ONVOY, LLC 224C WILMETTE IL
2021-02-02 224-344-7XXX 7000–7999Assigned ONVOY, LLC 224C WILMETTE IL
2021-02-02 224-488-3XXX 3000–3999Assigned ONVOY, LLC 224C GLENVIEW IL
2021-02-02 224-516-1XXX 1000–1999Assigned ONVOY, LLC 224C LAKEFOREST IL
2021-02-02 224-516-3XXX 3000–3999Assigned ONVOY, LLC 224C LAKEFOREST IL
2021-02-02 224-516-5XXX 5000–5999Assigned ONVOY, LLC 224C LAKEFOREST IL
2021-02-02 224-530-6XXX 6000–6999Assigned ONVOY, LLC 224C PLATO CTR IL
2021-02-02 224-530-7XXX 7000–7999Assigned ONVOY, LLC 224C PLATO CTR IL
2021-02-02 224-922-5XXX 5000–5999Assigned ONVOY, LLC 224C GLENCOE IL
2021-02-02 224-922-6XXX 6000–6999Assigned ONVOY, LLC 224C GLENCOE IL
2021-01-30 224-842-6XXX 6000–6999Assigned ONVOY, LLC 224C LIBERTYVL IL
2021-01-30 224-842-7XXX 7000–7999Assigned ONVOY, LLC 224C LIBERTYVL IL
2021-01-27 224-285-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEERFIELD IL
2021-01-26 224-370-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2021-01-26 224-370-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2021-01-26 224-370-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2021-01-26 224-370-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2021-01-19 224-955-3XXX 3000–3999Assigned ONVOY, LLC 224C ROSELLE IL
2021-01-19 224-955-4XXX 4000–4999Assigned ONVOY, LLC 224C ROSELLE IL
2021-01-19 224-955-6XXX 6000–6999Assigned ONVOY, LLC 224C ROSELLE IL
2021-01-19 224-955-7XXX 7000–7999Assigned ONVOY, LLC 224C ROSELLE IL
2021-01-19 224-955-8XXX 8000–8999Assigned ONVOY, LLC 224C ROSELLE IL
2021-01-15 224-349-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2021-01-15 224-349-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2021-01-15 224-349-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2021-01-15 224-349-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2021-01-15 224-349-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2021-01-15 224-349-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2021-01-15 224-369-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2021-01-15 224-369-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2021-01-15 224-369-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2021-01-15 224-369-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2021-01-12 224-488-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2021-01-12 224-488-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2021-01-12 224-933-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ROUND LAKE IL
2021-01-12 224-933-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ROUND LAKE IL
2021-01-12 224-946-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2021-01-12 224-946-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2021-01-12 224-946-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2021-01-11 224-566-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2021-01-11 224-566-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN 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.