ASN Information - AS2501

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General Information

Name: The University of Tokyo
Domain: u-tokyo.ac.jp
Country: JP
Type: education
Registry: JPNIC

Prefix Counts

IPv4 Count: 200,704
IPv6 Count: 79,229,371,440,083,952,222,718,656,512

IPv4 Prefixes


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CIDR Country Network Name Organization Registry Status Size
130.69.0.0/16 JP UTNET University of Tokyo APNIC ALLOCATED PORTABLE 65,536
133.11.0.0/16 JP JPNIC-NET-JP-ERX Japan Network Information Center APNIC ALLOCATED PORTABLE 65,536
157.82.0.0/16 JP UTNET University of Tokyo APNIC ALLOCATED PORTABLE 65,536
192.51.208.0/20 JP UTSNET-CIDR-BLK-JP University of Tokyo JPNIC 4,096

IPv6 Prefixes


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Deprecated: htmlspecialchars(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/beta.cheervision.co/ipinfo/asn/index.php on line 745
CIDR Country Network Name Organization Registry Status
2404:d540::/32 JP HGC1-CIDR-BLK-JP The University of Tokyo JPNIC
2404:d540:1::/48 JP UTNET-V6 THE UNIVERSITY OF TOKYO JPNIC

Network Relationships

Upstreams: AS2500, AS2907