140.133.0.0/16
🇹🇼IPv4APNICallocated RPKI Valid
CIDR
140.133.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇹🇼 Taiwan
City
Taipei
RIR
APNIC
Status
allocated
Allocated
12/29/1992
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not currently announced in BGP. See covering prefix below. | ||||
Covering Prefix
8 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 140.128.0.0/13 | AS1659ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center | Valid | — | 5/31/2026 |
| 140.133.32.0/19 | AS1659ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center | Invalid | — | 5/31/2026 |
| 140.133.32.0/19 | AS17713NSYSU-TW - Ministry of Education Computer Center | Valid | — | 5/31/2026 |
| 140.133.64.0/20 | AS17713NSYSU-TW - Ministry of Education Computer Center | Valid | — | 5/31/2026 |
| 140.133.0.0/20 | AS18177NCKU-TW - National Cheng Kung University | Valid | — | 5/31/2026 |
| 140.133.80.0/21 | AS17713NSYSU-TW - Ministry of Education Computer Center | Valid | — | 5/31/2026 |
| 140.133.88.0/22 | AS17713NSYSU-TW - Ministry of Education Computer Center | Valid | — | 5/31/2026 |
| 140.133.92.0/23 | AS17713NSYSU-TW - Ministry of Education Computer Center | Valid | — | 5/31/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 140.128.0.0/13 | AS1659 | /13 | apnic |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/140.133.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/140.133.0.0/16" | jq
External Links