47.245.0.0/18 - Alibaba (US) Technology (AS45102)
CIDR
47.245.0.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇯🇵 Japan
City
Shibuya City
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 47.245.0.0/18 | AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd. | Valid | Other IRR | 2026-10-11 |
More-Specific Announcements
2 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 47.245.0.0/19 | AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd. | Valid | - | 2026-10-11 |
| 47.245.32.0/19 | AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd. | Valid | - | 2026-10-11 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS45102 | Other IRR | MAINT-ALIBABA-CLOUD | 2024-07-19 |
Transfer History
Registry transfers of 47.245.0.0/18, blocks inside it, or blocks containing it.
- 47.244.0.0/15Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 47.244.0.0/15 | Transfer |
Related Prefixes
More prefixes of AS45102
All prefixes of AS45102 →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 ARIN regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/47.245.0.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/47.245.0.0/18" | jq
External Links