Internet Initiative Japan Inc. operates AS2497: 212 IPv4 prefixes covering 4,081,408 addresses, most of them in 
Japan.
By IPv4 addresses the network ranks #121 worldwide and #7 of 848 networks in Japan. That is 2.0% of the country’s IPv4 space.
The network spreads across 3 countries: Japan 100%, United States 0.17%, Singapore 0.02%.
The largest block is 172.122.0.0 to 172.123.255.255 with 131,072 addresses, geolocated to Chiyoda City.
- IPv4 addresses
- 4,081,408
- IPv4 prefixes
- 212
- World rank
- #121
- Country share
- 2.0%
- IPv6 ranges
- 5
Addresses by country
- Japan 100%
United States 0.17%
Singapore 0.02%
Largest blocks
- 172.122.0.0 Chiyoda City131,072
- 133.110.0.0 Chiyoda City131,072
- 219.119.0.0 Osaka65,536
- 210.149.0.0 Chiyoda City65,536
- 210.138.0.0 Chiyoda City65,536
- 210.128.0.0 Chiyoda City65,536
- 203.180.0.0 Chiyoda City65,536
- 202.232.0.0 Chiyoda City65,536
Networks of similar size
- AS13489 EPM Telecomunicaciones S.A. E.S.P.
4,230,656 - AS55836 Reliance Jio Infocomm Limited
4,225,024 - AS3257 GTT Communications Inc.4,204,800
- AS16625 Akamai Technologies, Inc.4,132,352
- AS11003 The Procter and Gamble Company4,059,392
- AS20057 AT&T Enterprises, LLC4,014,592
- AS22927 Telefonica de Argentina
3,989,272 - AS13285 TalkTalk Communications Limited
3,954,944
IPv4 prefixes
- 14.137.235.0/24
- 14.137.243.0/24
- 23.131.136.0/24
- 23.159.40.0/24
- 23.183.56.0/24
- 45.38.103.0/24
- 45.38.104.0/24
- 45.39.42.0/24
- 45.39.47.0/24
- 45.39.102.0/24
- 45.39.159.0/24
- 45.39.227.0/24
- 49.239.64.0/18
- 58.138.0.0/17
- 58.138.128.0/18
- 61.122.224.0/20
- 61.124.0.0/19
- 61.211.96.0/19
- 79.170.199.0/24
- 80.47.64.0/20
- 81.203.0.0/16
- 89.30.176.0/23
- 101.128.128.0/17
- 103.2.57.0/24
- 103.2.58.0/23
- 103.5.23.0/24
- 103.26.166.0/23
- 103.76.87.0/24
- 103.140.136.0/23
- 104.164.85.0/24
- 104.164.92.0/24
- 104.164.100.0/24
- 104.164.132.0/23
- 104.165.87.0/24
- 104.165.174.0/24
- 104.165.254.0/24
- 104.252.22.0/24
- 104.252.84.0/22
- 104.252.125.0/24
- 104.252.126.0/24
- 104.252.132.0/24
- 104.253.94.0/24
- 104.253.98.0/24
- 104.253.239.0/24
- 109.66.30.0/23
- 113.197.128.0/17
- 116.118.192.0/20
- 118.151.0.0/17
- 118.151.128.0/18
- 119.10.192.0/18
- 121.50.160.0/21
- 121.102.0.0/16
- 121.200.200.0/21
- 124.41.0.0/17
- 124.41.128.0/18
- 124.147.64.0/18
- 125.30.0.0/16
- 129.249.0.0/16
- 131.248.0.0/16
- 132.179.0.0/16
- 133.110.0.0/15
- 133.127.0.0/16
- 133.137.0.0/16
- 133.142.0.0/16
- 133.157.32.0/19
- 133.157.72.0/21
- 133.157.80.0/20
- 133.157.96.0/21
- 133.159.0.0/16
- 133.169.0.0/21
- 133.169.8.0/22
- 133.173.0.0/16
- 133.183.96.0/21
- 133.183.106.0/24
- 133.183.128.0/19
- 133.194.0.0/17
- 133.194.128.0/18
- 133.194.192.0/19
- 133.194.224.0/20
- 133.194.240.0/21
- 133.194.248.0/22
- 133.194.252.0/23
- 133.194.254.0/24
- 133.215.0.0/16
- 133.218.0.0/16
- 133.221.0.0/16
- 133.236.0.0/16
- 133.238.8.0/21
- 133.238.16.0/20
- 133.238.32.0/19
- 133.238.128.0/17
- 133.245.0.0/16
- 133.254.0.0/16
- 134.237.0.0/16
- 138.107.0.0/16
- 139.152.0.0/16
- 142.252.252.0/22
- 143.94.0.0/16
- 143.125.0.0/17
- 143.125.128.0/18
- 143.125.192.0/20
- 143.125.208.0/22
- 150.23.0.0/16
- 150.31.0.0/16
- 150.61.5.0/24
- 150.61.54.0/23
- 150.87.0.0/16
- 150.90.0.0/16
- 157.65.8.0/21
- 157.65.176.0/21
- 157.65.192.0/21
- 157.67.0.0/16
- 160.13.0.0/16
- 160.17.0.0/16
- 160.244.0.0/16
- 163.49.0.0/16
- 163.55.0.0/16
- 163.140.0.0/16
- 163.218.0.0/16
- 164.37.196.0/23
- 167.169.0.0/16
- 172.120.14.0/24
- 172.120.69.0/24
- 172.121.39.0/24
- 172.122.0.0/15
- 178.239.124.0/23
- 178.239.126.0/24
- 182.54.240.0/22
- 192.6.164.0/23
- 192.47.161.0/24
- 192.50.252.0/23
- 192.70.131.0/24
- 192.244.8.0/21
- 202.15.44.0/23
- 202.19.224.0/21
- 202.22.208.0/20
- 202.24.192.0/22
- 202.24.196.0/24
- 202.32.0.0/16
- 202.48.108.0/23
- 202.141.192.0/20
- 202.155.129.0/24
- 202.155.130.0/24
- 202.214.0.0/16
- 202.221.0.0/16
- 202.224.128.0/18
- 202.232.0.0/16
- 202.238.128.0/17
- 202.242.16.0/23
- 202.244.222.0/24
- 202.245.176.0/20
- 202.250.154.0/23
- 202.251.0.0/19
- 202.253.160.0/22
- 203.139.224.0/19
- 203.180.0.0/16
- 206.132.160.0/20
- 210.128.0.0/16
- 210.130.0.0/17
- 210.130.128.0/18
- 210.130.192.0/20
- 210.130.208.0/23
- 210.130.211.0/24
- 210.130.212.0/22
- 210.130.216.0/21
- 210.130.225.0/24
- 210.130.226.0/23
- 210.130.228.0/22
- 210.130.232.0/21
- 210.130.240.0/20
- 210.133.192.0/18
- 210.138.0.0/16
- 210.141.16.0/20
- 210.148.0.0/17
- 210.148.132.0/22
- 210.148.136.0/21
- 210.148.144.0/20
- 210.148.160.0/19
- 210.148.192.0/19
- 210.148.224.0/20
- 210.148.240.0/21
- 210.148.248.0/22
- 210.148.252.0/23
- 210.148.254.0/24
- 210.149.0.0/16
- 210.173.0.0/19
- 210.233.160.0/24
- 210.233.162.0/23
- 210.233.165.0/24
- 210.233.166.0/23
- 210.233.168.0/22
- 210.233.173.0/24
- 210.233.174.0/23
- 210.233.176.0/21
- 210.233.184.0/22
- 210.233.188.0/23
- 210.233.190.0/24
- 211.14.32.0/19
- 216.98.96.0/19
- 218.42.160.0/19
- 218.228.96.0/19
- 219.105.0.0/19
- 219.111.0.0/17
- 219.119.0.0/16
- 219.121.160.0/19
- 219.126.128.0/17
- 220.100.0.0/17
- 220.100.192.0/18
- 220.156.0.0/17
- 220.156.128.0/19
- 220.208.192.0/19
- 220.210.128.0/18
Questions and answers
Who owns AS2497?
Autonomous system AS2497 is operated by Internet Initiative Japan Inc..
How many IP addresses does AS2497 have?
The network holds 4,081,408 IPv4 addresses in 212 prefixes, plus 5 IPv6 ranges.
Which country is AS2497 in?
The main country is Japan, with addresses in 2 more countries.
How big is AS2497?
By IPv4 addresses it ranks #121 worldwide.
What is the largest address block of AS2497?
172.122.0.0 to 172.123.255.255, 131,072 addresses.