AS2497 IIJ

Internet Initiative Japan Inc.

Not flagged: treated as regular traffic

AS2497 is not on Fraudex's VPN, proxy and datacenter list, so its IPs are treated like ordinary home, mobile or business connections. A single address can still be flagged if it is a Tor exit relay.

CountryJapan
IPv4 ranges125
IPv4 addresses3,909,120
IPv6 ranges6
Tor exits now0

Check an IP from AS2497

Look up any address in real time with the free IP checker, or from your own code:

curl "https://fraudex.xyz/api/check?ip=23.131.136.0" \
  -H "X-API-Key: fx_your_key"

The answer includes the network (AS2497), the country and a VPN, proxy, Tor and bot verdict, in under a millisecond. Plans start at $40 for 30 days of unlimited lookups.

IPv4 ranges announced by AS2497

Showing the first 100 of 125 ranges.

First IPLast IPCIDRAddresses
23.131.136.023.131.136.25523.131.136.0/24256
23.159.40.023.159.40.25523.159.40.0/24256
23.183.56.023.183.56.25523.183.56.0/24256
49.239.64.049.239.127.25549.239.64.0/1816,384
58.138.0.058.138.191.25558.138.0.0/17, 58.138.128.0/1849,152
61.122.224.061.122.239.25561.122.224.0/204,096
61.211.96.061.211.127.25561.211.96.0/198,192
101.128.128.0101.128.255.255101.128.128.0/1732,768
103.2.57.0103.2.59.255103.2.57.0/24, 103.2.58.0/23768
103.5.23.0103.5.23.255103.5.23.0/24256
103.26.166.0103.26.167.255103.26.166.0/23512
113.197.128.0113.197.255.255113.197.128.0/1732,768
116.118.192.0116.118.207.255116.118.192.0/204,096
118.151.0.0118.151.191.255118.151.0.0/17, 118.151.128.0/1849,152
119.10.192.0119.10.255.255119.10.192.0/1816,384
121.50.160.0121.50.167.255121.50.160.0/212,048
121.102.0.0121.102.255.255121.102.0.0/1665,536
121.200.200.0121.200.207.255121.200.200.0/212,048
124.41.0.0124.41.191.255124.41.0.0/17, 124.41.128.0/1849,152
124.147.64.0124.147.127.255124.147.64.0/1816,384
125.30.0.0125.30.255.255125.30.0.0/1665,536
129.249.0.0129.249.255.255129.249.0.0/1665,536
131.248.0.0131.248.255.255131.248.0.0/1665,536
132.179.0.0132.179.255.255132.179.0.0/1665,536
133.110.0.0133.111.255.255133.110.0.0/15131,072
133.127.0.0133.127.255.255133.127.0.0/1665,536
133.137.0.0133.137.255.255133.137.0.0/1665,536
133.142.0.0133.142.255.255133.142.0.0/1665,536
133.159.0.0133.159.255.255133.159.0.0/1665,536
133.169.0.0133.169.11.255133.169.0.0/21, 133.169.8.0/223,072
133.173.0.0133.173.255.255133.173.0.0/1665,536
133.183.96.0133.183.103.255133.183.96.0/212,048
133.183.106.0133.183.106.255133.183.106.0/24256
133.183.128.0133.183.159.255133.183.128.0/198,192
133.194.0.0133.194.254.255133.194.0.0/17, 133.194.128.0/18, 133.194.192.0/19, 133.194.224.0/20 +465,280
133.215.0.0133.215.255.255133.215.0.0/1665,536
133.218.0.0133.218.255.255133.218.0.0/1665,536
133.221.0.0133.221.3.255133.221.0.0/221,024
133.221.4.0133.221.255.255133.221.4.0/22, 133.221.8.0/21, 133.221.16.0/20, 133.221.32.0/19 +264,512
133.236.0.0133.236.255.255133.236.0.0/1665,536
133.238.8.0133.238.63.255133.238.8.0/21, 133.238.16.0/20, 133.238.32.0/1914,336
133.238.128.0133.238.255.255133.238.128.0/1732,768
133.245.0.0133.245.255.255133.245.0.0/1665,536
133.254.0.0133.254.255.255133.254.0.0/1665,536
134.237.0.0134.237.255.255134.237.0.0/1665,536
138.107.0.0138.107.255.255138.107.0.0/1665,536
139.152.0.0139.152.11.255139.152.0.0/21, 139.152.8.0/223,072
139.152.12.0139.152.15.255139.152.12.0/221,024
139.152.16.0139.152.255.255139.152.16.0/20, 139.152.32.0/19, 139.152.64.0/18, 139.152.128.0/1761,440
143.94.0.0143.94.217.255143.94.0.0/17, 143.94.128.0/18, 143.94.192.0/20, 143.94.208.0/21 +155,808
143.94.218.0143.94.255.255143.94.218.0/23, 143.94.220.0/22, 143.94.224.0/199,728
143.125.0.0143.125.211.255143.125.0.0/17, 143.125.128.0/18, 143.125.192.0/20, 143.125.208.0/2254,272
150.23.0.0150.23.255.255150.23.0.0/1665,536
150.31.0.0150.31.255.255150.31.0.0/1665,536
150.61.5.0150.61.5.255150.61.5.0/24256
150.61.54.0150.61.55.255150.61.54.0/23512
150.87.0.0150.87.255.255150.87.0.0/1665,536
150.90.0.0150.90.255.255150.90.0.0/1665,536
157.65.8.0157.65.15.255157.65.8.0/212,048
157.65.176.0157.65.183.255157.65.176.0/212,048
157.65.192.0157.65.199.255157.65.192.0/212,048
157.67.0.0157.67.255.255157.67.0.0/1665,536
160.13.0.0160.13.255.255160.13.0.0/1665,536
160.17.0.0160.17.255.255160.17.0.0/1665,536
163.49.0.0163.49.255.255163.49.0.0/1665,536
163.55.0.0163.55.255.255163.55.0.0/1665,536
163.140.0.0163.140.255.255163.140.0.0/1665,536
163.218.0.0163.218.255.255163.218.0.0/1665,536
167.169.0.0167.169.255.255167.169.0.0/1665,536
172.122.0.0172.123.255.255172.122.0.0/15131,072
182.54.240.0182.54.243.255182.54.240.0/221,024
192.47.161.0192.47.161.255192.47.161.0/24256
192.50.252.0192.50.253.255192.50.252.0/23512
192.70.131.0192.70.131.255192.70.131.0/24256
192.244.8.0192.244.15.255192.244.8.0/212,048
202.15.44.0202.15.45.255202.15.44.0/23512
202.19.224.0202.19.231.255202.19.224.0/212,048
202.22.208.0202.22.223.255202.22.208.0/204,096
202.24.192.0202.24.196.255202.24.192.0/22, 202.24.196.0/241,280
202.32.0.0202.32.255.255202.32.0.0/1665,536
202.48.108.0202.48.109.255202.48.108.0/23512
202.141.192.0202.141.207.255202.141.192.0/204,096
202.214.0.0202.214.255.255202.214.0.0/1665,536
202.221.0.0202.221.255.255202.221.0.0/1665,536
202.224.128.0202.224.191.255202.224.128.0/1816,384
202.232.0.0202.232.255.255202.232.0.0/1665,536
202.238.128.0202.238.255.255202.238.128.0/1732,768
202.242.16.0202.242.17.255202.242.16.0/23512
202.244.222.0202.244.222.255202.244.222.0/24256
202.245.176.0202.245.191.255202.245.176.0/204,096
202.250.154.0202.250.155.255202.250.154.0/23512
202.251.0.0202.251.31.255202.251.0.0/198,192
202.253.160.0202.253.163.255202.253.160.0/221,024
203.139.224.0203.139.255.255203.139.224.0/198,192
203.180.0.0203.180.255.255203.180.0.0/1665,536
206.132.160.0206.132.175.255206.132.160.0/204,096
210.128.0.0210.128.255.255210.128.0.0/1665,536
210.130.0.0210.130.209.255210.130.0.0/17, 210.130.128.0/18, 210.130.192.0/20, 210.130.208.0/2353,760
210.130.211.0210.130.223.255210.130.211.0/24, 210.130.212.0/22, 210.130.216.0/213,328
210.130.225.0210.130.255.255210.130.225.0/24, 210.130.226.0/23, 210.130.228.0/22, 210.130.232.0/21 +17,936

IPv6 ranges announced by AS2497

First IPLast IPCIDR
2001:240::2001:240:ffff:ffff:ffff:ffff:ffff:ffff2001:240::/32
2001:300::2001:300:ffff:ffff:ffff:ffff:ffff:ffff2001:300::/32
2001:48b0::2001:48b0:ffff:ffff:ffff:ffff:ffff:ffff2001:48b0::/32
2400:3980::2400:3980:ffff:ffff:ffff:ffff:ffff:ffff2400:3980::/32
2403:5700::2403:5700:1:ffff:ffff:ffff:ffff:ffff2403:5700::/47
240a:71:8000::240a:71:9fff:ffff:ffff:ffff:ffff:ffff240a:71:8000::/35

Questions about AS2497

Is AS2497 a VPN or hosting network?

Fraudex does not list AS2497 (IIJ) as a VPN, proxy or hosting network. Its addresses are treated as regular traffic, apart from any Tor exit relays.

Which country is AS2497 registered in?

AS2497 is registered in Japan. Individual addresses can be used elsewhere, so check the IP itself when location matters.

How many IP addresses does AS2497 have?

It announces 125 IPv4 ranges with 3,909,120 addresses in total, plus 6 IPv6 ranges.

How do I block traffic from AS2497?

Blocking a whole network by number goes stale as ranges change hands. It is more reliable to check each visitor's IP when they sign up, log in or pay: the Fraudex API returns the network and a VPN and bot verdict, so you can block, challenge or just log flagged traffic. See why an IP blocking API pays for itself.

Other large networks in Japan

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