HomePrefix Lookup131.113.0.0/16

131.113.0.0/16

🇯🇵
IPv4APNICallocatedAS38635KEIO-NET - Keio UniversityNo ROA
CIDR
131.113.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇯🇵 Japan
City
Chiyoda
RIR
APNIC
Status
allocated
Allocated
11/15/1988

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
131.113.0.0/16AS38635KEIO-NET - Keio UniversityNo ROA
RADB
5/30/2026

IRR Route Objects

1
OriginRegistryMaintainerModified
AS38635RADBMAINT-AS3863511/13/2023
Origin ASN
AS38635
KEIO-NET - Keio University
Geolocation
Country🇯🇵JapanJP
RegionTokyo
CityChiyoda
Coordinates35.6906, 139.7700 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/131.113.0.0/16

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/131.113.0.0/16" | jq
External Links
RIPEstat Hurricane Electric BGP