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
2004-08-24 224-212-6XXX 6000–6999Assigned ILLINOIS BELL TEL CO 9329 LAKEFOREST IL
2004-08-24 224-212-7XXX 7000–7999Assigned ILLINOIS BELL TEL CO 9329 LAKEFOREST IL
2004-08-24 224-569-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K HUNTLEY IL
2004-08-24 224-612-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K DESPLAINES IL
2004-08-21 224-639-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2004-08-21 224-639-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2004-08-21 224-639-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2004-08-21 224-639-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2004-08-21 224-639-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2004-08-10 224-612-6XXX 6000–6999Assigned RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 8702 DESPLAINES IL
2004-08-10 224-639-4XXX 4000–4999Assigned RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 8702 NORTHBROOK IL
2004-08-09 224-207-4XXX 4000–4999Assigned ONVOY, LLC 224C LIBERTYVL IL
2004-08-09 224-208-1XXX 1000–1999Assigned ONVOY, LLC 224C BARTLETT IL
2004-08-09 224-212-1XXX 1000–1999Assigned ONVOY, LLC 224C LAKEFOREST IL
2004-08-09 224-232-5XXX 5000–5999Assigned ONVOY, LLC 224C ARLIGTNHTS IL
2004-08-09 224-293-6XXX 6000–6999Assigned ONVOY, LLC 224C DUNDEE IL
2004-08-09 224-521-1XXX 1000–1999Assigned ONVOY, LLC 224C GLENVIEW IL
2004-08-09 224-577-0XXX 0000–0999Assigned ONVOY, LLC 224C ROUND LAKE IL
2004-08-09 224-612-5XXX 5000–5999Assigned ONVOY, LLC 224C DESPLAINES IL
2004-08-09 224-629-4XXX 4000–4999Assigned ONVOY, LLC 224C ELGIN IL
2004-08-09 224-632-4XXX 4000–4999Assigned ONVOY, LLC 224C DEERFIELD IL
2004-08-09 224-659-7XXX 7000–7999Assigned ONVOY, LLC 224C ELK GROVE IL
2004-07-27 224-612-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2004-07-27 224-612-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2004-07-27 224-612-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2004-07-27 224-612-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2004-07-21 224-639-1XXX 1000–1999Assigned ONVOY, LLC 224C NORTHBROOK IL
2004-07-13 224-430-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2004-06-18 224-208-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K BARTLETT IL
2004-06-18 224-293-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K DUNDEE IL
2004-06-18 224-521-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K GLENVIEW IL
2004-06-18 224-765-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K HIGHLANDPK IL
2004-06-17 224-265-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K ELK GROVE IL
2004-06-14 224-383-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2004-06-14 224-383-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2004-06-04 224-238-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2004-06-04 224-238-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2004-06-03 224-430-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2004-05-25 224-207-0XXX 0000–0999Assigned FIRST COMMUNICATIONS, LLC 460K LIBERTYVL IL
2004-05-25 224-207-1XXX 1000–1999Assigned FIRST COMMUNICATIONS, LLC 460K LIBERTYVL IL
2004-05-25 224-207-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K LIBERTYVL IL
2004-05-25 224-207-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K LIBERTYVL IL
2004-05-25 224-207-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K LIBERTYVL IL
2004-05-25 224-207-9XXX 9000–9999Assigned FIRST COMMUNICATIONS, LLC 460K LIBERTYVL IL
2004-05-25 224-383-0XXX 0000–0999Assigned FIRST COMMUNICATIONS, LLC 460K NORTHBROOK IL
2004-05-25 224-383-1XXX 1000–1999Assigned FIRST COMMUNICATIONS, LLC 460K NORTHBROOK IL
2004-05-25 224-383-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K NORTHBROOK IL
2004-05-25 224-383-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K NORTHBROOK IL
2004-05-25 224-383-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K NORTHBROOK IL
2004-05-25 224-383-9XXX 9000–9999Assigned FIRST COMMUNICATIONS, LLC 460K NORTHBROOK 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.