HomePrefix Lookup192.51.208.0/20

192.51.208.0/20

🇯🇵
IPv4APNICallocatedAS2501UTnet - The University of TokyoNo ROA
CIDR
192.51.208.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇯🇵 Japan
City
Chiyoda City
RIR
APNIC
Status
allocated
Allocated
8/6/1993

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
192.51.208.0/20AS2501UTnet - The University of TokyoNo ROA
RADB
6/1/2026

IRR Route Objects

1
OriginRegistryMaintainerModified
AS2501RADBMAINT-AS250011/13/2023
Origin ASN
AS2501
UTnet - The University of Tokyo
Geolocation
Country🇯🇵JapanJP
RegionTokyo
CityChiyoda City
Coordinates35.6916, 139.7680 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/192.51.208.0/20

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

curl -s "https://api.ipctl.io/v1/prefix/192.51.208.0/20" | jq
External Links
RIPEstat Hurricane Electric BGP