ResearchRouting table, looking glass, RPKI & IRR

221.4.32.0/19 China Unicom Guangzhou network

Announced by AS17622 China Unicom Guangzhou network. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 221.4.32.0/19

Prefix
221.4.32.0/19
Origin
AS17622 CNCGROUP-GZ
RPKI
RPKI valid
Size
8,192 addresses
Less specific
221.4.0.0/16 AS17816 CHINA169-GZ
More specifics
9
IRR route objects
4 exact, 3 covering
Origin since
2026-10-17 20:01 UTC
Paths

How 221.4.32.0/19 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 4837×2 17622
OriginAS17622 China Unicom Guangzhou network
Origin codeIGP
Communities174:21001 174:22013 36601:150 36601:174 36601:2001
Updated3d 20h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 4837 17622
OriginAS17622 China Unicom Guangzhou network
Origin codeIGP
Communities903:900 903:13760
Updated10d 7h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 4837 17622
OriginAS17622 China Unicom Guangzhou network
Origin codeIGP
Communities6461:5997 36295:100 36295:6461
Updated2d 12h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 4837 17622
OriginAS17622 China Unicom Guangzhou network
Origin codeIGP
Communitiesnone
Updated10d 7h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 4837×2 17622
OriginAS17622 China Unicom Guangzhou network
Origin codeIGP
Communities174:21001 174:22013 36295:100 36295:174
Updated14d 0h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS17622 to originate 221.4.32.0/19 up to /19. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
221.4.32.0/19/19AS17622 CNCGROUP-GZAPNIC
221.4.0.0/16/16AS17816 CHINA169-GZAPNIC
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
221.4.32.0/19AS17622 CNCGROUP-GZAPNICChina Unicom CHINA169 NetworkMAINT-CNCGROUP-RR
221.4.32.0/19AS17816 CHINA169-GZLEVEL3Proxy-registered route objectLEVEL3-MNT
221.4.32.0/19AS17622 CNCGROUP-GZNTTCOMCMI IP TransitMAINT-CMI-INT-HK
221.4.32.0/19AS17622 CNCGROUP-GZRADBCMI (Customer Route)MAINT-AS58453
221.4.0.0/16 coveringAS17816 CHINA169-GZAPNICCNC Group CHINA169 Guangdong Province NetworkMAINT-CNCGROUP-RR
221.4.0.0/16 coveringAS17816 CHINA169-GZNTTCOMCMI IP TransitMAINT-CMI-INT-HK
221.4.0.0/16 coveringAS17816 CHINA169-GZRADBCMI (Customer Route)MAINT-AS58453
Less specific

Covering prefixes

Announced prefixes that contain this one, most specific first.

221.4.0.0/16 AS17816 CHINA169-GZ
More specific

Prefixes inside 221.4.32.0/19

9 announced prefixes fall inside this one.

Show the 9 prefixes
221.4.32.0/20 AS17622 CNCGROUP-GZ221.4.33.0/24 AS17622 CNCGROUP-GZ221.4.40.0/22 AS17622 CNCGROUP-GZ221.4.40.0/24 AS17622 CNCGROUP-GZ221.4.41.0/24 AS17622 CNCGROUP-GZ221.4.42.0/24 AS17622 CNCGROUP-GZ221.4.48.0/20 AS17622 CNCGROUP-GZ221.4.54.0/24 AS17622 CNCGROUP-GZ221.4.61.0/24 AS17622 CNCGROUP-GZ
Tools

Check 221.4.32.0/19 live

Looking glassIP to ASN APIRPKI APIIRR API