203.209.224.0/19 - Hangzhou Alibaba Advertising (AS37963)
CIDR
203.209.224.0/19
IP Version
IPv4
Addresses
8.1K
Mask
/19 (255.255.224.0)
Country
🇨🇳 China
City
Hangzhou
RIR
APNIC
Status
allocated
Allocated
2006-01-20
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.209.224.0/19 | AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd. | Valid | APNIC | 2026-10-13 |
More-Specific Announcements
21 more-specific announcementsRelated Prefixes
Geolocation
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the APNIC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/203.209.224.0/19Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.209.224.0/19" | jq
External Links