Data as of Nov 13, 2026

207.41.183.72/29

Anonymizer · ISP proxy

GTT Communications Inc. · space held by Cogent Communications, LLC

Announcement
No RPKI
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
record created Jan 24, 1996 · reallocated to I-2000, Inc.
2 · Leased from
its owner, directly
3 · Announced by
AS3257 GTT Communications Inc.
since Nov 2019 · 7.0 yr ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

Owners leasing their own space

NameIn 207.41.183.72/29/24s
Cogent Communications, LLC
8100%
1

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromProxy exitsHolderRPKI
207.40.0.0/14
since May 2024
AS174Internet providerIP broker Rackdog (part)42Cogent Communications, LLC

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
207.40.0.0/14262,144COGENT-207-40-0Cogent Communications, LLC (COGC) · USDirect AllocationJan 24, 1996abuse@cogentco.com
└ 207.41.160.0/198,192SPRINT-CF29BFI-2000, Inc. (I2I) · USReallocated—abuse@gtt.net
└ 207.41.183.72/298TRNS-HFNHudson Fiber Network, Inc (HFN-3) · USReassignedApr 30, 2014ofn-noc@extenetsystems.com

Network & registry

Routing timeline

Covering aggregate above, the prefix's own history below

207.41.160.0/19

Routing history

Pattern
Stable
First seen
May 2005
Current origin since
Nov 2019 · 7.0 yr
Origin networks
2
Last change of origin
Nov 2019
Recorded history

History

Handoffs
1