ResearchRouting table, looking glass, RPKI & IRR

162.57.128.0/17 MDU Resources Group, Inc.

Announced by AS64226 MDU Resources Group, Inc. RPKI not found Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 162.57.128.0/17

Prefix
162.57.128.0/17
Origin
AS64226 MDURESOURCES
RPKI
RPKI not found
Size
32,768 addresses
Less specific
162.57.0.0/16 AS64226 MDURESOURCES
More specifics
12
IRR route objects
1 exact, 1 covering
In RouteViews
2026-10-14 20:02 UTC
Paths

How 162.57.128.0/17 is reached

Every path our looking glass collectors hold for this exact prefix. Open one for its attributes, or see them all side by side in the looking glass.

AS36601 TNT (TNT - Tampa, FL)Collector-1-TAMPA-FL36601 174 3257 26794 64226
OriginAS64226 MDU Resources Group, Inc.
Origin codeIGP
Communities174:21000 174:22013 36601:150 36601:174 36601:2001
Updated16h 8m ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 6939 26794 64226
OriginAS64226 MDU Resources Group, Inc.
Origin codeIGP
Communities903:900 903:13760
Updated7d 2h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 26794 64226
OriginAS64226 MDU Resources Group, Inc.
Origin codeIGP
Communities36295:100
Updated7d 2h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 26794 64226
OriginAS64226 MDU Resources Group, Inc.
Origin codeIGP
Communitiesnone
Updated7d 2h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 1299 26794 64226
OriginAS64226 MDU Resources Group, Inc.
Origin codeIGP
Communities174:21000 174:22013 36295:100 36295:174
Updated10d 20h ago
RPKI

Route origin authorizations

No ROA covers this prefix, so RPKI has nothing to say about who may originate it. Validate another origin.

IRR

Route objects

Registered in the IRR for this prefix and the ones covering it. Look it up live.

RouteOriginSourceDescriptionMaintained by
162.57.128.0/17AS26794 DCN-ASRADBMDUMAINT-AS26794
162.57.0.0/16 coveringAS26794 DCN-ASRADBMDUMAINT-AS26794
Less specific

Covering prefixes

Announced prefixes that contain this one, most specific first.

162.57.0.0/16 AS64226 MDURESOURCES
More specific

Prefixes inside 162.57.128.0/17

12 announced prefixes fall inside this one.

Show the 12 prefixes
162.57.128.0/18 AS64226 MDURESOURCES162.57.146.0/23 AS15305 SYRINGANETWORKS162.57.192.0/18 AS64226 MDURESOURCES162.57.232.0/24 AS64226 MDURESOURCES162.57.235.0/24 AS64226 MDURESOURCES162.57.236.0/24 AS64226 MDURESOURCES162.57.239.0/24 AS64226 MDURESOURCES162.57.241.0/24 AS64226 MDURESOURCES162.57.242.0/24 AS64226 MDURESOURCES162.57.243.0/24 AS64226 MDURESOURCES162.57.244.0/24 AS64226 MDURESOURCES162.57.245.0/24 AS64226 MDURESOURCES
Tools

Check 162.57.128.0/17 live

Looking glassIP to ASN APIRPKI APIIRR API