Autonomous System

AS131159 Yamagata University

EducationActiveJapanJPNIC

AS131159 (AS-YAMAGATAU) is an education network operated by Yamagata University in Japan, registered with JPNIC. It has 6 IPv4 prefixes with 123,392 addresses and 1 IPv6 prefix, which makes it the 2,044th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses123,392in 6 prefixes
IPv6 prefixes1≈ 1.2 × 10²⁴ addresses
Size rank#2,044of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationYamagata University
AS nameAS-YAMAGATAU
Websiteyamagata-u.ac.jp
Country Japan (JP)
Network typeEducation
RegistryJPNIC
Abuse contacthostmaster@idnic.net
Registered—
Last updated2011-11-01

IPv4 prefixes

6 prefixes · 123,392 addresses
NetworkAddressesFirst – last address
133.24.0.0/1665,536133.24.0.0 – 133.24.255.255
133.24.0.0/1816,384133.24.0.0 – 133.24.63.255
133.24.64.0/1816,384133.24.64.0 – 133.24.127.255
133.24.128.0/1816,384133.24.128.0 – 133.24.191.255
133.24.192.0/198,192133.24.192.0 – 133.24.223.255
133.24.248.0/23512133.24.248.0 – 133.24.249.255

IPv6 prefixes

1 prefix
  • 2001:df0:25e::/48

Query AS131159 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS131159&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS131159, with or without a key:

curl "https://api.ipapi.is/?q=133.24.0.1"

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