Data as of Nov 9, 2026

172.121.164.0/24

Anonymizer · ISP proxy3 residential-proxy exits · 30 days

GTT Communications Inc. · space held by EGIHosting

Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical

Residential-proxy exits

Proxy exits
3
1.2% of its addresses · 30 days
Providers
2
selling exits here
Oct 10, 2026 – Nov 8, 2026

Exits seen per day

3 observations

Proxy providers listing exits

  • B2Proxy
  • KindProxy
IPv4 market

Path

1 · Holder
record created Jun 23, 2015
2 · Leased from
its owner, directly
3 · Announced by
AS3257 GTT Communications Inc.
since Apr 2024 · 2.5 yr ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

Owners leasing their own space

NameIn 172.121.164.0/24/24s
EGIHosting
256100%
1

Lineage

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

172.121.164.0/24

From the registry to its use

  1. Jun 23, 2015
    Registry record
    EGIHosting
    Direct Allocation
    172.120.0.0/15
  2. Apr 23, 2024
    Route object
    AS3257 GTT Communications Inc.
    RADB route object for AS3257 GTT Communications Inc., maintainer MAINT-AS18779
  3. Apr 23, 2024– today
    Announced
    AS3257 GTT Communications Inc.
    Internet provider
  4. today
    Leased from
    EGIHosting
    Lessor

Network & registry

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
239