Autonomous System

AS55379 Hosei University

EducationActiveJapanJPNIC

AS55379 (hosei-net) is an education network operated by Hosei University in Japan, registered with JPNIC. It has 3 IPv4 prefixes with 131,072 addresses and 3 IPv6 prefixes, which makes it the 1,959th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses131,072in 3 prefixes
IPv6 prefixes3≈ 2.4 × 10²⁴ addresses
Size rank#1,959of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationHosei University
AS namehosei-net
Websitehosei.ac.jp
Country Japan (JP)
Network typeEducation
RegistryJPNIC
Abuse contact—
Registered—
Last updated2010-05-12

IPv4 prefixes

3 prefixes · 131,072 addresses
NetworkAddressesFirst – last address
133.25.0.0/1665,536133.25.0.0 – 133.25.255.255
133.25.0.0/1732,768133.25.0.0 – 133.25.127.255
133.25.128.0/1732,768133.25.128.0 – 133.25.255.255

IPv6 prefixes

3 prefixes
  • 2001:df3:6500::/48
  • 2001:df3:6500::/49
  • 2001:df3:6500:8000::/49

Query AS55379 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=AS55379&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS55379, with or without a key:

curl "https://api.ipapi.is/?q=133.25.0.1"

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