Data as of Nov 7, 2026
Autonomous system

AS64226

MDU Resources Group, Inc.

Announces 65,536 addresses in 16 prefixes. None of it is anonymizer space.

Type
Business
US

Announced prefixes

Arrived
PrefixTypeRPKI
162.57.0.0/16
since Oct 2018
Business
162.57.0.0/17
since Aug 2016
Business
162.57.0.0/18
since Feb 2020
Business
162.57.64.0/18
since Feb 2020
Business
162.57.128.0/17
since Aug 2016
Business
162.57.128.0/18
since Feb 2020
Business
162.57.192.0/18
since Feb 2020
Business
162.57.232.0/24
since Feb 2023
Business
162.57.235.0/24
since Feb 2023
Business
162.57.236.0/24
since Feb 2023
Business
162.57.239.0/24
since Feb 2023
Business
162.57.241.0/24
since Feb 2023
Business
162.57.242.0/24
since Feb 2023
Business
162.57.243.0/24
since Feb 2023
Business
162.57.244.0/24
since Feb 2023
Business
162.57.245.0/24
since Mar 2026
Business

Network & history

Routing patterns

How its announcements have moved

Arrivals

Year each prefix's current origin began announcing it