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ASN Lookup Tool
AS55390 TUSNET

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS55390
Organisation
Tokyo University of Science
Name
TUSNET
Total IPv4 Addresses
65,536
Total IPv4 Prefixes
2
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#3,128 out of 78,887
Registry
Jpnic
Registered Country
JP flagJP
Registered Country Name
Japan
Registered Date
Registration Last Change
Receiving From
ASN
Organisation
AS2907
JP flagfor assignment to JPNIC members
AS9993
JP flagITOCHU Techno-Solutions Corporation
IPv4 Active Prefixes
PrefixRange FromRange To
133.31.0.0/17133.31.0.0133.31.127.255
133.31.128.0/17133.31.128.0133.31.255.255
IPv6 Active Prefixes
PrefixRange FromRange To
2001:df0:cf::/482001:df0:cf::2001:df0:cf:ffff:ffff:ffff:ffff:ffff