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Data as of Nov 7, 2026

207.41.160.0/19

Anonymizer · ISP proxy

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

Announcement
this exact prefix
No RPKI
Announced by
AS3257
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Jan 24, 1996 · reallocated to I-2000, Inc.
2 · Leased from
Cogent Communications, LLC
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 207.41.160.0/19/24s
Cogent Communications, LLC
8,192100%
32

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

207.41.160.0/19

From the registry to its use

  1. Jan 24, 1996
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    207.40.0.0/14
  2. Mar 17, 2000
    Route object
    AS14866 VOI Net Inc.
    RADB route object for AS14866 VOI Net Inc., maintainer MAINT-AS1828
    207.41.173.0/24
  3. May 9, 2005– May 16, 2024
    Announced
    AS1239 Cogent Communications, LLC
    as part of 207.40.0.0/14
    207.40.0.0/14
  4. May 9, 2005– Nov 27, 2019
    Announced
    AS6459 I-2000, Inc.
  5. Nov 14, 2019
    Route object
    AS3257 GTT Communications Inc.
    RADB route object for AS3257 GTT Communications Inc., maintainer MAINT-AS3257
  6. Nov 16, 2019– today
    Announced
    AS3257 GTT Communications Inc.
    Internet provider
  7. May 5, 2024– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 207.40.0.0/14
    207.40.0.0/14
  8. today
    Reallocated
    I-2000, Inc.
    Reallocated
    207.41.160.0/19

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesProxy exitsHolderRPKI
207.40.0.0/14
since May 2024
AS174Internet provider28,67211%ISP proxy43
2 always on
Cogent Communications, LLC

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, 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
└ 207.41.163.160/2732FC-TB-NETThe Falconwood Corporation (C02179623) · USReassignedMar 9, 2009abuse@gtt.net
via SPRINT-CF29BF
└ 207.41.163.192/2664FC-TB-NETThe Falconwood Corporation (C02180648) · USReassignedMar 10, 2009abuse@gtt.net
via SPRINT-CF29BF
└ 207.41.166.0/24256I-2000-NET11I-2000, Inc. (I2I) · USReassignedApr 29, 1996abuse@gtt.net
└ 207.41.182.216/298TRNS-HFNHudson Fiber Network, Inc (HFN-3) · USReassignedApr 30, 2014ofn-noc@extenetsystems.com
└ 207.41.183.56/298TRNS-HFNHudson Fiber Network, Inc (HFN-3) · USReassignedApr 30, 2014ofn-noc@extenetsystems.com
└ 207.41.183.72/298TRNS-HFNHudson Fiber Network, Inc (HFN-3) · USReassignedApr 30, 2014ofn-noc@extenetsystems.com
└ 207.41.183.80/298TRNS-HFNHudson Fiber Network, Inc (HFN-3) · USReassignedApr 30, 2014ofn-noc@extenetsystems.com
└ 207.41.183.88/298TRNS-HFNHudson Fiber Network, Inc (HFN-3) · USReassignedApr 30, 2014ofn-noc@extenetsystems.com
└ 207.41.187.200/298TRNS-HFNHudson Fiber Network, Inc (HFN-3) · USReassignedApr 30, 2014ofn-noc@extenetsystems.com
└ 207.41.188.144/298TRNS-HFNHudson Fiber Network, Inc (HFN-3) · USReassignedApr 30, 2014ofn-noc@extenetsystems.com

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

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Cogent Communications, LLC
Handle
COGC
Range
207.40.0.0/14
Registration type
Direct Allocation
Record created
Jan 24, 1996
Legacy
yes
Reallocated to
I-2000, Inc. (I2I)
Reallocated range
207.41.160.0/19
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