121.196.0.0/14 Hangzhou Alibaba Advertising Co.,Ltd.
Announced by AS37963 Hangzhou Alibaba Advertising Co.,Ltd. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 121.196.0.0/14
Prefix
Origin
AS37963 ALIBABA-CN-NET
RPKI
RPKI valid
Size
262,144 addresses
Less specific
none
More specifics
4
IRR route objects
3 exact, 0 covering
In RouteViews
2026-10-12 20:02 UTC
Paths
How 121.196.0.0/14 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 17621 37963
| Origin | AS37963 Hangzhou Alibaba Advertising Co.,Ltd. |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 4d 17h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 1299 4837 17621 37963
| Origin | AS37963 Hangzhou Alibaba Advertising Co.,Ltd. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 5d 1h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4837 17621 37963
| Origin | AS37963 Hangzhou Alibaba Advertising Co.,Ltd. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 1h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS37963 to originate 121.196.0.0/14 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 121.196.0.0/14 | /24 | AS37963 ALIBABA-CN-NET | 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 |
|---|---|---|---|---|
| 121.196.0.0/14 | AS37963 ALIBABA-CN-NET | APNIC | Hangzhou Alibaba Advertising Co.,Ltd. | MAINT-CNNIC-AP |
| 121.196.0.0/14 | AS45102 ALIBABA-CN-NET | APNIC | Alibaba (US) Technology Co., Ltd. | MAINT-CNNIC-AP |
| 121.196.0.0/14 | AS4134 CHINANET-BACKBONE | LEVEL3 | Proxy-registered route object | XINGXUNTECHLTD-MNT |
More specific
Prefixes inside 121.196.0.0/14
4 announced prefixes fall inside this one.