NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 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 847
ONVOY, LLC 2
BANDWIDTH.COM CLEC, LLC - IL 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
2004-08-24 847-457-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K LAKEFOREST IL
2004-08-24 847-474-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K CARY IL
2004-08-24 847-497-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K PISTAKHLDS IL
2004-08-24 847-586-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K DUNDEE IL
2004-08-24 847-616-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K BENSENVL IL
2004-08-24 847-629-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K FOX LAKE IL
2004-08-24 847-861-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K HIGHLANDPK IL
2004-08-21 847-230-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ROSELLE IL
2004-08-18 847-890-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-08-16 847-354-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ELK GROVE IL
2004-08-13 847-230-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K ROSELLE IL
2004-08-13 847-890-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J ARLIGTNHTS IL
2004-08-13 847-930-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J ELGIN IL
2004-08-11 847-849-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2004-08-11 847-849-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2004-08-11 847-897-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2004-08-10 847-852-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BARRINGTON IL
2004-08-10 847-904-8XXX 8000–8999Assigned RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 8702 GLENVIEW IL
2004-08-09 847-241-1XXX 1000–1999Assigned ONVOY, LLC 224C PALATINE IL
2004-08-09 847-250-4XXX 4000–4999Assigned ONVOY, LLC 224C ITASCA IL
2004-08-09 847-350-6XXX 6000–6999Assigned ONVOY, LLC 224C BENSENVL IL
2004-08-09 847-416-8XXX 8000–8999Assigned ONVOY, LLC 224C WAUCONDA IL
2004-08-09 847-512-3XXX 3000–3999Assigned ONVOY, LLC 224C WILMETTE IL
2004-08-09 847-613-1XXX 1000–1999Assigned ONVOY, LLC 224C HALF DAY IL
2004-08-09 847-613-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 HALF DAY IL
2004-08-09 847-643-9XXX 9000–9999Assigned ONVOY, LLC 224C MUNDELEIN IL
2004-08-09 847-665-1XXX 1000–1999Assigned ONVOY, LLC 224C GRAYSLAKE IL
2004-08-09 847-693-3XXX 3000–3999Assigned ONVOY, LLC 224C WAUKEGAN IL
2004-08-09 847-716-2XXX 2000–2999Assigned ONVOY, LLC 224C WINNETKA IL
2004-08-09 847-719-6XXX 6000–6999Assigned ONVOY, LLC 224C LAKEZURICH IL
2004-08-09 847-801-5XXX 5000–5999Assigned ONVOY, LLC 224C FRANKLINPK IL
2004-08-09 847-805-9XXX 9000–9999Assigned ONVOY, LLC 224C ROSELLE IL
2004-08-09 847-829-8XXX 8000–8999Assigned ONVOY, LLC 224C CARY IL
2004-08-09 847-850-7XXX 7000–7999Assigned ONVOY, LLC 224C WHEELING IL
2004-08-09 847-852-1XXX 1000–1999Assigned ONVOY, LLC 224C BARRINGTON IL
2004-08-09 847-859-1XXX 1000–1999Assigned ONVOY, LLC 224C EVANSTON IL
2004-08-09 847-861-1XXX 1000–1999Assigned ONVOY, LLC 224C HIGHLANDPK IL
2004-08-09 847-939-6XXX 6000–6999Assigned ONVOY, LLC 224C PARK RIDGE IL
2004-08-09 847-960-1XXX 1000–1999Assigned ONVOY, LLC 224C ALGONQUIN IL
2004-08-09 847-972-2XXX 2000–2999Assigned ONVOY, LLC 224C SKOKIE IL
2004-08-05 847-859-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J EVANSTON IL
2004-07-30 847-483-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-07-19 847-890-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-07-06 847-544-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2004-07-01 847-961-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUNTLEY IL
2004-06-24 847-544-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K DESPLAINES IL
2004-06-24 847-643-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K MUNDELEIN IL
2004-06-24 847-849-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K NORTHBROOK IL
2004-06-24 847-944-1XXX 1000–1999Assigned FIRST COMMUNICATIONS, LLC 460K ROSELLE IL
2004-06-22 847-915-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 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.