Data as of Nov 10, 2026
Autonomous system

AS394621

Stack41, llc.

Announces 2,304 addresses in 10 prefixes. None of it is anonymizer space.

Type
Hosting
US

Announced prefixes

Arrived
PrefixTypeHolderRPKI
50.227.99.0/24
since Oct 2017
HostingComcast Cable Communications, LLC
148.59.37.0/24
since Oct 2018
Hosting
148.59.133.0/24
since Nov 2016
Hosting
161.38.16.0/22
since Oct 2019
Hosting
161.38.16.0/24
since Feb 2024
Hosting
161.38.17.0/24
since Feb 2024
Hosting
161.38.18.0/24
since Feb 2024
Hosting
161.38.19.0/24
since Feb 2024
Hosting
162.223.125.0/24
since Oct 2023
HostingISC International, Ltd.
207.166.139.0/24
since Apr 2025
HostingData Holdings

Network & history

Routing patterns

How its announcements have moved

Arrivals

Year each prefix's current origin began announcing it