39.104.0.0/16 - Hangzhou Alibaba Advertising (AS37963)
CIDR
39.104.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇨🇳 China
City
Beijing
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 39.104.0.0/16 | AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd. | Valid | - | 2026-10-12 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 39.104.0.0/14 | AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd. | Valid | - | 2026-10-12 |
| 39.104.0.0/15 | AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd. | Valid | - | 2026-10-12 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 39.104.0.0/14 | AS37963 | /24 | apnic |
Transfer History
Registry transfers of 39.104.0.0/16, blocks inside it, or blocks containing it.
- 39.104.0.0/14Transfer ·
- 39.96.0.0/12Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 39.104.0.0/14 | Transfer | |||
| 39.96.0.0/12 | Transfer |
Related Prefixes
More prefixes of AS37963
All prefixes of AS37963 →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/39.104.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/39.104.0.0/16" | jq
External Links