121.52.208.0/20 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 AS4847
Summary
What the table says about 121.52.208.0/20
Prefix
Origin
AS4808 CHINA169-BJ
RPKI
RPKI valid
Size
4,096 addresses
Less specific
none
More specifics
1
IRR route objects
4 exact, 0 covering
In RouteViews
2026-10-14 16:02 UTC
Paths
How 121.52.208.0/20 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 4847
| Origin | AS4847 China Networks Inter-Exchange |
| Origin code | incomplete |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 6d 15h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 4134 4847
| Origin | AS4847 China Networks Inter-Exchange |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 6d 23h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4134 4847
| Origin | AS4847 China Networks Inter-Exchange |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 6d 23h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS4808 to originate 121.52.208.0/20 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 121.52.208.0/20 | /24 | AS4808 CHINA169-BJ | APNIC |
| 121.52.208.0/20 | /24 | AS4847 CNIX-AP | APNIC |
| 121.52.208.0/20 | /24 | AS24404 CNISP-UNION | APNIC |
| 121.52.208.0/20 | /24 | AS56048 CMNET-BEIJING-AP | APNIC |
IRR
Route objects
Registered in the IRR for this prefix and the ones covering it. Look it up live.
| Route | Origin | Source | Description | Maintained by |
|---|---|---|---|---|
| 121.52.208.0/20 | AS4134 CHINANET-BACKBONE | LEVEL3 | Proxy-registered route object | XINGXUNTECHLTD-MNT |
| 121.52.208.0/20 | AS4808 CHINA169-BJ | LEVEL3 | Proxy-registered route object | XINGXUNTECHLTD-MNT |
| 121.52.208.0/20 | AS4847 CNIX-AP | RADB | regist for beijingtongniuxinxi | MAINT-AS4847 |
| 121.52.208.0/20 | AS56048 CMNET-BEIJING-AP | RADB | CMI (Customer Route) | MAINT-AS58453 |
More specific
Prefixes inside 121.52.208.0/20
1 announced prefix fall inside this one.