180.131.136.0/21
🇯🇵CIDR
180.131.136.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇯🇵 Japan
City
Chiyoda City
RIR
APNIC
Status
allocated
Allocated
3/23/2011
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 180.131.136.0/21 | AS131921GMOCL - GMO GlobalSign Holdings K.K. | Valid | — | 5/30/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 180.131.136.0/22 | AS131921GMOCL - GMO GlobalSign Holdings K.K. | Valid | — | 5/30/2026 |
| 180.131.140.0/22 | AS131921GMOCL - GMO GlobalSign Holdings K.K. | Valid | — | 5/30/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 180.131.136.0/21 | AS131921 | /24 | apnic |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/180.131.136.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/180.131.136.0/21" | jq
External Links