Autonomous System

AS2497 Internet Initiative Japan Inc.

ISPActiveJapanJPNIC

AS2497 (IIJ) is an ISP network operated by Internet Initiative Japan Inc. in Japan, registered with JPNIC. It has 237 IPv4 prefixes with 4,151,296 addresses and 11 IPv6 prefixes, which makes it the 151st largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses4,151,296in 237 prefixes
IPv6 prefixes11≈ 3.3 × 10²⁹ addresses
Size rank#151of 82,200 active ASNs
Abuser scoreVery Low0.02% of its addresses flagged · method

Details

OrganizationInternet Initiative Japan Inc. · hosting provider profile
AS nameIIJ
Websiteiij.ad.jp
Country Japan (JP)
Network typeISP
RegistryJPNIC
Abuse contact—
Registered—
Last updated2005-06-03

IPv4 prefixes

237 prefixes · 4,151,296 addresses
NetworkAddressesFirst – last address
172.122.0.0/15131,072172.122.0.0 – 172.123.255.255
81.203.0.0/1665,53681.203.0.0 – 81.203.255.255
121.102.0.0/1665,536121.102.0.0 – 121.102.255.255
125.30.0.0/1665,536125.30.0.0 – 125.30.255.255
129.249.0.0/1665,536129.249.0.0 – 129.249.255.255
131.248.0.0/1665,536131.248.0.0 – 131.248.255.255
132.179.0.0/1665,536132.179.0.0 – 132.179.255.255
133.110.0.0/1665,536133.110.0.0 – 133.110.255.255
133.111.0.0/1665,536133.111.0.0 – 133.111.255.255
133.127.0.0/1665,536133.127.0.0 – 133.127.255.255
133.137.0.0/1665,536133.137.0.0 – 133.137.255.255
133.142.0.0/1665,536133.142.0.0 – 133.142.255.255
133.159.0.0/1665,536133.159.0.0 – 133.159.255.255
133.173.0.0/1665,536133.173.0.0 – 133.173.255.255
133.215.0.0/1665,536133.215.0.0 – 133.215.255.255
133.218.0.0/1665,536133.218.0.0 – 133.218.255.255
133.221.0.0/1665,536133.221.0.0 – 133.221.255.255
133.236.0.0/1665,536133.236.0.0 – 133.236.255.255
133.245.0.0/1665,536133.245.0.0 – 133.245.255.255
133.254.0.0/1665,536133.254.0.0 – 133.254.255.255
134.237.0.0/1665,536134.237.0.0 – 134.237.255.255
138.107.0.0/1665,536138.107.0.0 – 138.107.255.255
139.152.0.0/1665,536139.152.0.0 – 139.152.255.255
143.94.0.0/1665,536143.94.0.0 – 143.94.255.255
150.23.0.0/1665,536150.23.0.0 – 150.23.255.255
The 25 largest of 237. The API and the database have all of them.

IPv6 prefixes

11 prefixes
  • 2001:240::/32
  • 2001:300::/32
  • 2001:48b0::/32
  • 2400:3980::/32
  • 240a:71:8000::/36
  • 240a:71:9000::/36
  • 2401:ce20:c::/48
  • 2401:ce20:d::/48
  • 2401:ce20:e::/48
  • 2403:5700::/48
  • 2403:5700:1::/48

Query AS2497 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=AS2497&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS2497, with or without a key:

curl "https://api.ipapi.is/?q=172.122.0.1"

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