47.253.0.0/17 - ALIBABA CN NET Alibaba US Technology (AS45102)
CIDR
47.253.0.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇺🇸 United States
City
Charlottesville
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 |
|---|---|---|---|---|
| 47.253.0.0/17 | AS45102 ALIBABA-CN-NET Alibaba US Technology Co., Ltd. | Valid | Other IRR | 2026-10-11 |
Related Announcements
1 less-specific, 4 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 47.253.0.0/16 | AS45102 ALIBABA-CN-NET Alibaba US Technology Co., Ltd. | Valid | - | 2026-10-11 |
| 47.253.124.0/24 | AS134963 ASEPL-AS-AP Alibaba Cloud Singapore Private Limited | Valid | - | 2026-10-11 |
| 47.253.125.0/24 | AS134963 ASEPL-AS-AP Alibaba Cloud Singapore Private Limited | Valid | - | 2026-10-11 |
| 47.253.126.0/24 | AS134963 ASEPL-AS-AP Alibaba Cloud Singapore Private Limited | Valid | - | 2026-10-11 |
| 47.253.127.0/24 | AS134963 ASEPL-AS-AP Alibaba Cloud Singapore Private Limited | 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 47.253.0.0/17, blocks inside it, or blocks containing it.
- 47.252.0.0/15Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 47.252.0.0/15 | 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/47.253.0.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/47.253.0.0/17" | jq
External Links