203.64.176.0/21
🇹🇼CIDR
203.64.176.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇹🇼 Taiwan
City
Miaoli
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.64.176.0/21 | AS9916NCTU-TW - National Yang Ming Chiao Tung University | Valid | — | 5/31/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.64.0.0/16 | AS1659ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center | Valid | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/203.64.176.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.64.176.0/21" | jq
External Links