203.72.80.0/21 - National Dong Hwa University (AS17711)
CIDR
203.72.80.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇹🇼 Taiwan
City
Taipei
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.72.80.0/21 | AS17711 NDHU-TW - National Dong Hwa University | Valid | - | 2026-10-12 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.72.0.0/16 | AS1659 ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center | Valid | - | 2026-10-12 |
Related Prefixes
More prefixes of AS17711
All prefixes of AS17711 →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/203.72.80.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.72.80.0/21" | jq
External Links