ResearchRouting table, looking glass, RPKI & IRR

112.137.140.0/24 VietNam National University Ha Noi

Announced by AS45542 VietNam National University Ha Noi. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 112.137.140.0/24

Prefix
112.137.140.0/24
Origin
AS45542 VNU-AS-VN
RPKI
RPKI valid
Size
256 addresses
Less specific
112.137.128.0/20 AS45542 VNU-AS-VN
More specifics
0
IRR route objects
2 exact, 12 covering
In RouteViews
2026-10-16 08:02 UTC
Paths

How 112.137.140.0/24 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 58453 45899 24173 45542
OriginAS45542 VietNam National University Ha Noi
Origin codeIGP
Communities174:21001 174:22013 36601:150 36601:174 36601:2001
Updated8d 6h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 58453 45899 24173 45542
OriginAS45542 VietNam National University Ha Noi
Origin codeIGP
Communities903:900 903:13760
Updated8d 14h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 24173 45542
OriginAS45542 VietNam National University Ha Noi
Origin codeIGP
Communities36295:100
Updated8d 6h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 24173 45542
OriginAS45542 VietNam National University Ha Noi
Origin codeIGP
Communitiesnone
Updated8d 6h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 58453 45899 24173 45542
OriginAS45542 VietNam National University Ha Noi
Origin codeIGP
Communities174:21001 174:22013 36295:100 36295:174
Updated9d 10h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS45542 to originate 112.137.128.0/20 up to /24. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
112.137.128.0/20/24AS45542 VNU-AS-VNAPNIC
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
112.137.140.0/24AS45542 VNU-AS-VNAPNICVNU-VNMAINT-VN-VNNIC
112.137.140.0/24AS45542 VNU-AS-VNRADBProxy-registered route objectMAINT-HGC-INTL
112.137.140.0/23 coveringAS45542 VNU-AS-VNAPNICVNU-VNMAINT-VN-VNNIC
112.137.140.0/23 coveringAS45542 VNU-AS-VNNTTCOMVNU-VNNIC-VNMAINT-VDC
112.137.140.0/23 coveringAS45542 VNU-AS-VNRADBProxy-registered route objectMAINT-HGC-INTL
112.137.140.0/22 coveringAS45542 VNU-AS-VNAPNICVNU-VNMAINT-VN-VNNIC
112.137.140.0/22 coveringAS45542 VNU-AS-VNNTTCOMVNU-VNNIC-VNMAINT-VDC
112.137.140.0/22 coveringAS45542 VNU-AS-VNRADBProxy-registered route objectMAINT-HGC-INTL
112.137.136.0/21 coveringAS45542 VNU-AS-VNAPNICVNU-VNMAINT-VN-VNNIC
112.137.136.0/21 coveringAS45542 VNU-AS-VNNTTCOMVNU-VNNIC-VNMAINT-VDC
112.137.136.0/21 coveringAS45542 VNU-AS-VNRADBProxy-registered route objectMAINT-HGC-INTL
112.137.128.0/20 coveringAS45542 VNU-AS-VNAPNICVNU-VNMAINT-VN-VNNIC
112.137.128.0/20 coveringAS45542 VNU-AS-VNNTTCOMVNU-VNNIC-VNMAINT-VDC
112.137.128.0/20 coveringAS45542 VNU-AS-VNRADBVNPT-Customer-TCHQ-AS-VNMAINT-AS45899
Less specific

Covering prefixes

Announced prefixes that contain this one, most specific first.

112.137.128.0/20 AS45542 VNU-AS-VN
Tools

Check 112.137.140.0/24 live

Looking glassIP to ASN APIRPKI APIIRR API