157.82.0.0/16
🇯🇵CIDR
157.82.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇯🇵 Japan
City
Chiyoda
RIR
APNIC
Status
allocated
Allocated
3/23/1992
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 157.82.0.0/16 | AS2501UTnet - The University of Tokyo | No ROA | RADB | 5/30/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 157.82.112.0/21 | AS2501UTnet - The University of Tokyo | No ROA | — | 5/30/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS2501 | RADB | MAINT-AS2500 | 11/13/2023 |
Origin ASN
AS2501
UTnet - The University of Tokyo
Geolocation
API
Open https://api.ipctl.io/v1/prefix/157.82.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/157.82.0.0/16" | jq
External Links