ResearchRouting table, looking glass, RPKI & IRR

223.121.4.0/22 China Mobile International Limited

Announced by AS58453 China Mobile International Limited. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 223.121.4.0/22

Prefix
223.121.4.0/22
Origin
AS58453 CMI-INT-HK
RPKI
RPKI valid
Size
1,024 addresses
Less specific
223.121.0.0/17 AS58453 CMI-INT-HK
More specifics
0
IRR route objects
2 exact, 10 covering
In RouteViews
2026-10-12 20:02 UTC
Paths

How 223.121.4.0/22 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 13760 58453
OriginAS58453 China Mobile International Limited
Origin codeIGP
Communities13760:3002 36601:150 36601:2001 36601:13760
Updated4d 20h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 58453
OriginAS58453 China Mobile International Limited
Origin codeIGP
Communities903:900 903:13760
Updated5d 4h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 58453
OriginAS58453 China Mobile International Limited
Origin codeIGP
Communities36295:100
Updated5d 4h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 174 58453
OriginAS58453 China Mobile International Limited
Origin codeIGP
Communities174:21101 174:22012
Updated5d 4h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 58453
OriginAS58453 China Mobile International Limited
Origin codeIGP
Communities174:21101 174:22012 36295:100 36295:174
Updated8d 21h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS58453 to originate 223.121.0.0/17 up to /24. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
223.121.0.0/17/24AS58453 CMI-INT-HKAPNIC
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
223.121.4.0/22AS58453 CMI-INT-HKAPNICChina Mobile International Limited Level 30, Tower 1 Kowloon Commerce Centre No. 51 Kwai Cheong RoadMAINT-CMI-INT-HK
223.121.4.0/22AS58453 CMI-INT-HKRADBChina Mobile International LimitedMAINT-AS58453
223.121.0.0/21 coveringAS58453 CMI-INT-HKAPNICChina Mobile International Limited Level 30, Tower 1 Kowloon Commerce Centre No. 51 Kwai Cheong RoadMAINT-CMI-INT-HK
223.121.0.0/20 coveringAS58453 CMI-INT-HKAPNICChina Mobile International Limited Level 30, Tower 1 Kowloon Commerce Centre No. 51 Kwai Cheong RoadMAINT-CMI-INT-HK
223.121.0.0/19 coveringAS58453 CMI-INT-HKAPNICChina Mobile International Limited Level 30, Tower 1 Kowloon Commerce Centre No. 51 Kwai Cheong RoadMAINT-CMI-INT-HK
223.121.0.0/18 coveringAS58453 CMI-INT-HKAPNICChina Mobile International Limited Level 30, Tower 1 Kowloon Commerce Centre No. 51 Kwai Cheong RoadMAINT-CMI-INT-HK
223.121.0.0/17 coveringAS58453 CMI-INT-HKAPNICChina Mobile International Limited Level 30, Tower 1 Kowloon Commerce Centre No. 51 Kwai Cheong RoadMAINT-CMI-INT-HK
223.121.0.0/16 coveringAS58453 CMI-INT-HKRADBChina Mobile International LimitedMAINT-AS58453
223.120.0.0/15 coveringAS58453 CMI-INT-HKRADBChina Mobile International LimitedMAINT-AS58453
223.112.0.0/12 coveringAS9808 CHINAMOBILE-CNNTTCOMCMI IP TransitMAINT-CMI-INT-HK
223.112.0.0/12 coveringAS9808 CHINAMOBILE-CNRADBCMI (Customer Route)MAINT-AS58453
223.64.0.0/10 coveringAS9808 CHINAMOBILE-CNRADBCMI (Customer Route)MAINT-AS58453
Less specific

Covering prefixes

Announced prefixes that contain this one, most specific first.

223.121.0.0/17 AS58453 CMI-INT-HK223.64.0.0/10 AS9808 CHINAMOBILE-CN
Tools

Check 223.121.4.0/22 live

Looking glassIP to ASN APIRPKI APIIRR API