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ASN Lookup Tool
AS131159 AS-YAMAGATAU

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS131159
Organisation
Yamagata University
Name
AS-YAMAGATAU
Total IPv4 Addresses
65,536
Total IPv4 Prefixes
16
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#3,147 out of 79,076
Registry
Jpnic
Registered Country
JP flagJP
Registered Country Name
Japan
Registered Date
Registration Last Change
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS2907
JP flagfor assignment to JPNIC members
AS150369
JP flagTelHi Corporation Niu-Building 2F,2-1-17,Nihonba..
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

PrefixRange FromRange To
133.24.0.0/18133.24.0.0133.24.63.255
133.24.64.0/21133.24.64.0133.24.71.255
133.24.72.0/23133.24.72.0133.24.73.255
133.24.74.0/24133.24.74.0133.24.74.255
133.24.75.0/24133.24.75.0133.24.75.255
Showing 5 of 16
IPv6 Active Prefixes
PrefixRange FromRange To
2001:df0:25e::/482001:df0:25e::2001:df0:25e:ffff:ffff:ffff:ffff:ffff