NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 815
VERSATEL LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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
2013-04-04 815-466-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E GRANT PARK IL
2013-04-04 815-472-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MOMENCE IL
2013-04-04 815-507-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MOMENCE IL
2013-04-03 815-255-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MINOOKA IL
2013-04-03 815-255-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MINOOKA IL
2013-04-03 815-320-5XXX 5000–5999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E NEW LENOX IL
2013-04-03 815-374-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E DWIGHT IL
2013-04-03 815-374-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E DWIGHT IL
2013-04-03 815-388-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MCHENRY IL
2013-04-03 815-426-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E HERSCHER IL
2013-04-03 815-426-4XXX 4000–4999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E HERSCHER IL
2013-04-03 815-427-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E ST ANNE IL
2013-04-03 815-427-3XXX 3000–3999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E ST ANNE IL
2013-04-03 815-463-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E NEW LENOX IL
2013-04-03 815-556-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PLAINFIELD IL
2013-04-03 815-585-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MORRIS IL
2013-04-03 815-585-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MORRIS IL
2013-04-03 815-665-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E OTTAWA IL
2013-04-03 815-665-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E OTTAWA IL
2013-04-03 815-679-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MCHENRY IL
2013-04-03 815-680-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MANHATTAN IL
2013-04-03 815-680-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MANHATTAN IL
2013-04-03 815-691-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E UTICA IL
2013-04-03 815-691-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E UTICA IL
2013-04-03 815-733-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PLAINFIELD IL
2013-04-03 815-887-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E HARVARD IL
2013-04-03 815-887-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E HARVARD IL
2013-04-03 815-916-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PLATTVILLE IL
2013-04-03 815-916-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PLATTVILLE IL
2013-04-03 815-923-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E UNION IL
2013-04-03 815-923-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E UNION IL
2013-04-03 815-940-5XXX 5000–5999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E GARDNER IL
2013-04-03 815-940-6XXX 6000–6999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E GARDNER IL
2013-04-02 815-634-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COAL CITY IL
2013-04-02 815-634-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COAL CITY IL
2013-03-20 815-491-1XXX 1000–1999Assigned NUSO, LLC 551G ROCKFORD IL
2013-03-19 815-415-1XXX 1000–1999Assigned ONVOY, LLC 224C SENECA IL
2013-03-13 815-329-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ROCKFORD IL
2013-02-18 815-216-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E KANKAKEE IL
2013-02-13 815-618-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 FREEPORT IL
2013-02-13 815-908-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 FREEPORT IL
2013-01-25 815-237-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C GARDNER IL
2013-01-25 815-465-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C GRANT PARK IL
2013-01-15 815-900-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCHENRY IL
2013-01-03 815-348-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E KANKAKEE IL
2013-01-03 815-797-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SOMONAUK IL
2013-01-02 815-321-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 WOODSTOCK IL
2012-12-17 815-401-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J KANKAKEE IL
2012-12-14 815-705-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K MORRIS IL
2012-11-30 815-255-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MINOOKA 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.