Data as of Nov 7, 2026

206.231.224.0/24

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 Nov 6, 1995 · reallocated to I-2000, Inc. Jan 29, 1996
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 206.231.224.0/24/24s
Cogent Communications, LLC
256100%
1

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesProxy exitsHolderRPKI
206.228.0.0/14
since May 2024
AS174Internet provider16,3846.3%ISP proxy14
4 always on
Cogent Communications, LLC

Registrations in this block

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

RangeAddressesNetnameHolderTypeCreatedAbuse contact
206.228.0.0/14262,144COGENT-206-228-0Cogent Communications, LLC (COGC) · USDirect AllocationNov 6, 1995abuse@cogentco.com
└ 206.231.224.0/204,096SPRINT-CEE7EFI-2000, Inc. (I2I) · USReallocatedJan 29, 1996abuse@gtt.net
└ 206.231.224.0/24256I2000-NET8I-2000, Inc (C00007803) · USReassignedFeb 9, 1996abuse@gtt.net
via SPRINT-CEE7EF

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

Announced by

Covering announcement 206.231.224.0/20

Prefix
206.231.224.0/20
Announced by
AS3257 GTT Communications Inc.
Type
ISP proxy
Anonymizer addresses
all
RPKI
No RPKI
Netname
SPRINT-CEE7EF
Registrant
I-2000, Inc.
RIR
ARIN
IPv4 market

Holder

Organization
Cogent Communications, LLC
Handle
COGC
Range
206.228.0.0/14
Registration type
Direct Allocation
Record created
Nov 6, 1995
Legacy
yes
Reallocated to
I-2000, Inc. (I2I)
Reallocated range
206.231.224.0/20
Reallocated
Jan 29, 1996
Origin network

AS3257

US
Name
GTT Communications Inc.
Type
Internet provider
Registered
Sep 30, 1994
Domain
gtt.net
Website
www.gtt.net
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed
VPN servers
244