Autonomous System

AS9591 National Institute for Fusion Science

BusinessActiveJapanAPNIC

AS9591 (NIFS) is a business network operated by National Institute for Fusion Science in Japan, registered with APNIC. It has 2 IPv4 prefixes with 65,792 addresses, which makes it the 3,451st largest of 82,141 active autonomous systems by IPv4 space.

IPv4 addresses65,792in 2 prefixes
IPv6 prefixes0none
Size rank#3,451of 82,141 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationNational Institute for Fusion Science
AS nameNIFS
Websitenifs.ac.jp
Country Japan (JP)
Network typeBusiness
RegistryAPNIC
Abuse contacthostmaster@nic.ad.jp
Registered—
Last updated2024-10-23

IPv4 prefixes

2 prefixes · 65,792 addresses
NetworkAddressesFirst – last address
133.75.0.0/1665,536133.75.0.0 – 133.75.255.255
133.75.232.0/24256133.75.232.0 – 133.75.232.255

IPv6 prefixes

No IPv6 prefixes.

Query AS9591 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=AS9591&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS9591, with or without a key:

curl "https://api.ipapi.is/?q=133.75.0.1"

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