ResearchRouting table, looking glass, RPKI & IRR

222.201.0.0/16 CERNET2 IX at South China University of Technology

Announced by AS24357 CERNET2 IX at South China University of Technology. RPKI not found Seen by 5 of our 5 looking glass sessions. Also originated by AS4538

Summary

What the table says about 222.201.0.0/16

Prefix
222.201.0.0/16
Origin
AS24357 CNGI-GZ-IX-AS-AP
RPKI
RPKI not found
Size
65,536 addresses
Less specific
222.192.0.0/12 AS4538 ERX-CERNET-BKB
More specifics
16
IRR route objects
0 exact, 2 covering
In RouteViews
2026-10-12 16:02 UTC
Paths

How 222.201.0.0/16 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 23764 4538×2
OriginAS4538 China Education and Research Network Center
Origin codeIGP
Communities174:21101 174:22005 36601:150 36601:174 36601:2001
Updated4d 14h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 23764 4538×2
OriginAS4538 China Education and Research Network Center
Origin codeIGP
Communities903:900 903:13760
Updated4d 22h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4635 4538
OriginAS4538 China Education and Research Network Center
Origin codeIGP
Communities36295:100
Updated4d 22h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 4635 4538
OriginAS4538 China Education and Research Network Center
Origin codeIGP
Communitiesnone
Updated4d 22h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 23764 4538×2
OriginAS4538 China Education and Research Network Center
Origin codeIGP
Communities174:21101 174:22005 36295:100 36295:174
Updated8d 15h 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
222.200.0.0/14 coveringAS4538 ERX-CERNET-BKBAPNICCERNETMAINT-CERNET-AP
222.192.0.0/12 coveringAS4538 ERX-CERNET-BKBRADBPACNET (proxy-registered route object)MAINT-AS4637
Less specific

Covering prefixes

Announced prefixes that contain this one, most specific first.

222.192.0.0/12 AS4538 ERX-CERNET-BKB
More specific

Prefixes inside 222.201.0.0/16

16 announced prefixes fall inside this one.

Show the 16 prefixes
222.201.0.0/20 AS4538 ERX-CERNET-BKB222.201.24.0/22 AS4538 ERX-CERNET-BKB222.201.28.0/22 AS4538 ERX-CERNET-BKB222.201.30.0/24 AS4538 ERX-CERNET-BKB222.201.31.0/24 AS4538 ERX-CERNET-BKB222.201.32.0/19 AS4538 ERX-CERNET-BKB222.201.64.0/19 AS4538 ERX-CERNET-BKB222.201.96.0/19 AS4538 ERX-CERNET-BKB222.201.128.0/18 AS4538 ERX-CERNET-BKB222.201.128.0/20 AS4538 ERX-CERNET-BKB222.201.144.0/21 AS4538 ERX-CERNET-BKB222.201.152.0/21 AS4538 ERX-CERNET-BKB222.201.160.0/19 AS4538 ERX-CERNET-BKB222.201.192.0/19 AS4538 ERX-CERNET-BKB222.201.192.0/20 AS4538 ERX-CERNET-BKB222.201.224.0/19 AS4538 ERX-CERNET-BKB
Tools

Check 222.201.0.0/16 live

Looking glassIP to ASN APIRPKI APIIRR API