ResearchRouting table, looking glass, RPKI & IRR

175.159.200.0/21 City University of Hong Kong

Announced by AS4158 City University of Hong Kong. RPKI not found Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 175.159.200.0/21

Prefix
175.159.200.0/21
Origin
AS4158 CITYUNI-AS-AP
RPKI
RPKI not found
Size
2,048 addresses
Less specific
none
More specifics
0
IRR route objects
7 exact, 1 covering
In RouteViews
2026-10-12 16:02 UTC
Paths

How 175.159.200.0/21 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 3491 17824 3662 4158×3
OriginAS4158 City University of Hong Kong
Origin codeIGP
Communities174:21000 174:22013 36601:150 36601:174 36601:2001
Updated4d 14h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 3491 17824 3662 4158×3
OriginAS4158 City University of Hong Kong
Origin codeIGP
Communities903:900 903:13760
Updated4d 23h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4635 3662 4158
OriginAS4158 City University of Hong Kong
Origin codeIGP
Communities36295:100
Updated4d 23h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 4635 3662 4158
OriginAS4158 City University of Hong Kong
Origin codeIGP
Communitiesnone
Updated4d 23h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 3491 17824 3662 4158×3
OriginAS4158 City University of Hong Kong
Origin codeIGP
Communities174:21000 174:22013 36295:100 36295:174
Updated8d 16h 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
175.159.200.0/21AS4158 CITYUNI-AS-APNTTCOMProxy-registered route objectMAINT-AS9304
175.159.200.0/21AS9269 HKBN-AS-APNTTCOMHKBN as object (AS9269)MAINT-HKBN
175.159.200.0/21AS3662 HARNETRADBHKBN(customer route)MAINT-AS9269
175.159.200.0/21AS4158 CITYUNI-AS-APRADBPACNET (proxy-registered route object)MAINT-AS4637
175.159.200.0/21AS9269 HKBN-AS-APRADBHKBN(customer route)MAINT-AS9269
175.159.200.0/21AS10103 HKBN-AS-APRADBHKBN(customer route)MAINT-AS9269
175.159.200.0/21AS45474 NEXUSGUARD-AS-APRADBNexusguard (Customer Route)MAINT-AS45474
175.159.192.0/19 coveringAS4616 HKPOLYU-HKRADBHKBNMAINT-AS4766
Tools

Check 175.159.200.0/21 live

Looking glassIP to ASN APIRPKI APIIRR API