ResearchRouting table, looking glass, RPKI & IRR

123.103.4.0/22 China Unicom Beijing Province Network

Announced by AS4808 China Unicom Beijing Province Network. RPKI valid Seen by 5 of our 5 looking glass sessions. Also originated by AS23724

What the table says about 123.103.4.0/22

Origin
AS4808 CHINA169-BJ
RPKI
RPKI valid
Size
1,024 addresses
Less specific
none
More specifics
0
IRR route objects
3 exact, 0 covering
In RouteViews
2026-10-14 00:02 UTC

How 123.103.4.0/22 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 174 4134 23724
OriginAS23724 IDC, China Telecommunications Corporation
Origin codeIGP
Communities174:21001 174:22013 36601:150 36601:174 36601:2001
Updated5d 21h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 4134 23724
OriginAS23724 IDC, China Telecommunications Corporation
Origin codeIGP
Communities903:900 903:13760
Updated6d 5h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4134 23724
OriginAS23724 IDC, China Telecommunications Corporation
Origin codeIGP
Communities36295:100
Updated6d 5h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 4134 23724
OriginAS23724 IDC, China Telecommunications Corporation
Origin codeIGP
Communitiesnone
Updated6d 5h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 4134 23724
OriginAS23724 IDC, China Telecommunications Corporation
Origin codeIGP
Communities174:21001 174:22013 36295:100 36295:174
Updated9d 22h ago

Route origin authorizations

Covered by a ROA authorizing AS4808 to originate 123.103.4.0/22 up to /22. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
123.103.4.0/22/22AS4808 CHINA169-BJAPNIC
123.103.4.0/22/22AS9808 CHINAMOBILE-CNAPNIC
123.103.4.0/22/22AS23724 CHINANET-IDC-BJ-APAPNIC

Route objects

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

RouteOriginSourceDescriptionMaintained by
123.103.4.0/22AS4134 CHINANET-BACKBONELEVEL3Proxy-registered route objectXINGXUNTECHLTD-MNT
123.103.4.0/22AS9808 CHINAMOBILE-CNRADBCMI (Customer Route)MAINT-AS58453
123.103.4.0/22AS23724 CHINANET-IDC-BJ-APRADBChina Telecom Beijing Co. Ltd.MAINT-AS23724

Check 123.103.4.0/22 live