Data as of Nov 12, 2026
121.0.16.0/21
No anonymizer space · no proxy exits in 30 daysHangzhou Alibaba Advertising Co.,Ltd.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 121.0.16.0/20 since May 2017 | AS37963 | Hosting | Hangzhou Alibaba Advertising Co.,Ltd. |
Network & registry
Origin network
AS37963
CN
- Name
- Hangzhou Alibaba Advertising Co.,Ltd.
- Type
- Hosting
- Registered
- Mar 8, 2006
- Domain
- alibabagroup.com
- Website
- alibabagroup.com/
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Feb 2007
- Current origin since
- Feb 2007 · 20 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 121.0.16.0/20 | AS37963 | /24 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS37963 | RADB | CMI (Customer Route) | MAINT-AS58453 | Nov 9, 2026 |
Whois
Registration for this announcement
- Range
- 121.
0. 16. 0/ 20 - Netname
- ALIBABA-CN-NET
- Registrant
- Hangzhou Alibaba Advertising Co.,Ltd.
- Registrant country
- CN
- Organization
- Hangzhou Alibaba Advertising Co.,Ltd.
- Org country
- CN
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Nov 28, 2023
- Maintainer
- MAINT-CNNIC-AP
- RIR
- APNIC
- Country
- CN
- Delegated
- Sep 25, 2006
- Status
- assigned
Report abuse
Abuse contact
- ipas@
cnnic. cn - Name
- ABUSE CNNICCN
- Handle
- AC1601-AP