NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 847
PEERLESS NETWORK OF ILLINOIS, LLC - IL 51
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
2026-06-16 847-972-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E SKOKIE IL
2024-10-21 847-900-3XXX 3000–3999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E GRAYSLAKE IL
2024-08-28 847-972-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E SKOKIE IL
2024-01-22 847-500-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E LAKEFOREST IL
2023-08-17 847-701-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PALATINE IL
2021-09-02 847-792-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E HAMPSHIRE IL
2019-08-09 847-610-6XXX 6000–6999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E ROSELLE IL
2019-05-13 847-851-4XXX 4000–4999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E DUNDEE IL
2019-04-18 847-649-6XXX 6000–6999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E DUNDEE IL
2018-10-24 847-999-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E WINNETKA IL
2018-10-10 847-349-4XXX 4000–4999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FRANKLINPK IL
2016-11-15 847-648-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E ROSELLE IL
2016-11-15 847-957-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E BENSENVL IL
2015-11-09 847-238-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E BENSENVL IL
2015-11-09 847-534-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E ROSELLE IL
2013-04-04 847-232-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PARK RIDGE IL
2013-04-04 847-232-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PARK RIDGE IL
2013-04-04 847-469-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E WAUCONDA IL
2013-04-04 847-469-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E WAUCONDA IL
2013-04-04 847-496-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PALATINE IL
2013-04-04 847-582-4XXX 4000–4999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E LAKEFOREST IL
2013-04-04 847-654-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PALATINE IL
2013-04-04 847-796-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E LAKEZURICH IL
2013-04-04 847-796-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E LAKEZURICH IL
2013-04-03 847-233-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FRANKLINPK IL
2013-04-03 847-258-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E ELK GROVE IL
2013-04-03 847-264-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E ELK GROVE IL
2013-04-03 847-383-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E HALF DAY IL
2013-04-03 847-383-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E HALF DAY IL
2013-04-03 847-396-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E DUNDEE IL
2013-04-03 847-551-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E DUNDEE IL
2013-04-03 847-572-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E DEERFIELD IL
2013-04-03 847-597-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E DEERFIELD IL
2013-04-03 847-780-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E HIGHLANDPK IL
2013-04-03 847-780-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E HIGHLANDPK IL
2013-04-03 847-786-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E GLENCOE IL
2013-04-03 847-786-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E GLENCOE IL
2013-04-03 847-901-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E GLENVIEW IL
2013-04-03 847-904-6XXX 6000–6999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E GLENVIEW IL
2013-04-03 847-916-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FRANKLINPK IL
2012-08-23 847-443-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2012-08-23 847-443-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2012-08-23 847-443-2XXX 2000–2999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2012-08-23 847-443-3XXX 3000–3999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2012-08-23 847-443-5XXX 5000–5999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2011-08-25 847-600-4XXX 4000–4999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E SKOKIE IL
2011-07-12 847-440-2XXX 2000–2999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E EVANSTON IL
2010-06-14 847-886-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E ROUND LAKE IL
2009-11-30 847-423-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E SKOKIE IL
2005-04-08 847-944-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E ROSELLE 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.