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Data as of Nov 7, 2026

172.121.199.0/24

Anonymizer · ISP proxy1 residential-proxy exit · 30 days

GTT Communications Inc. · space held by EGIHosting

Announcement
172.121.192.0/19
RPKI valid
Announced by
AS3257
Type
ISP proxy
Risk
90 / 100 · Critical

Residential-proxy exits

Proxy exits
1
0.39% of its addresses · 30 days
Providers
1
selling exits here
Oct 8, 2026 – Nov 6, 2026

Exits seen per day

1 observation

Proxy providers listing exits

  • GSocks
IPv4 market

Path

1 · Holder
EGIHosting
record created Jun 23, 2015
2 · Leased from
EGIHosting
its owner, directly
3 · Announced by
AS3257 GTT Communications Inc.
since Sep 2021 · 5.1 yr ago
4 · Use
Proxy providersnamed Oxylabs
ISP proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 172.121.199.0/24/24s
OxylabsTesonet
256100%
1
Leased from

Owners leasing their own space

NameIn 172.121.199.0/24/24s
EGIHosting
256100%
1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 172.121.192.0/19

Prefix
172.121.192.0/19
Announced by
AS3257 GTT Communications Inc.
Type
ISP proxy
Anonymizer addresses
all
Operator
Proxy providerssold by Oxylabs
Leased from
Lessor EGIHosting
Proxy exits
7
RPKI
RPKI valid
Netname
EGN-23
Registrant
EGIHosting
RIR
ARIN
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