131,072
IPv4 Addresses
2
Network Blocks (/16)
University of Tsukuba (AS37917) is a network operator registered in 🇯🇵 Japan. It announces approximately 131,072 IPv4 addresses across 2 /16 network blocks. The complete list of network ranges is shown below — click any address to view its full geolocation and network report.
📡 IP Address Ranges
2 blocks · 512 /24 networks130.158.0.0130.158.1.0130.158.2.0130.158.3.0130.158.4.0130.158.5.0130.158.6.0130.158.7.0130.158.8.0130.158.9.0130.158.10.0130.158.11.0130.158.12.0130.158.13.0130.158.14.0130.158.15.0130.158.16.0130.158.17.0130.158.18.0130.158.19.0130.158.20.0130.158.21.0130.158.22.0130.158.23.0130.158.24.0130.158.25.0130.158.26.0130.158.27.0130.158.28.0130.158.29.0130.158.30.0130.158.31.0130.158.32.0130.158.33.0130.158.34.0130.158.35.0130.158.36.0130.158.37.0130.158.38.0130.158.39.0130.158.40.0130.158.41.0130.158.42.0130.158.43.0130.158.44.0130.158.45.0130.158.46.0130.158.47.0130.158.48.0130.158.49.0130.158.50.0130.158.51.0130.158.52.0130.158.53.0130.158.54.0130.158.55.0130.158.56.0130.158.57.0130.158.58.0130.158.59.0130.158.60.0130.158.61.0130.158.62.0130.158.63.0130.158.64.0130.158.65.0130.158.66.0130.158.67.0130.158.68.0130.158.69.0130.158.70.0130.158.71.0130.158.72.0130.158.73.0130.158.74.0130.158.75.0130.158.76.0130.158.77.0130.158.78.0130.158.79.0130.158.80.0130.158.81.0130.158.82.0130.158.83.0130.158.84.0130.158.85.0130.158.86.0130.158.87.0130.158.88.0130.158.89.0130.158.90.0130.158.91.0130.158.92.0130.158.93.0130.158.94.0130.158.95.0130.158.96.0130.158.97.0130.158.98.0130.158.99.0130.158.100.0130.158.101.0130.158.102.0130.158.103.0130.158.104.0130.158.105.0130.158.106.0130.158.107.0130.158.108.0130.158.109.0130.158.110.0130.158.111.0130.158.112.0130.158.113.0130.158.114.0130.158.115.0130.158.116.0130.158.117.0130.158.118.0130.158.119.0130.158.120.0130.158.121.0130.158.122.0130.158.123.0130.158.124.0130.158.125.0130.158.126.0130.158.127.0130.158.128.0130.158.129.0130.158.130.0130.158.131.0130.158.132.0130.158.133.0130.158.134.0130.158.135.0130.158.136.0130.158.137.0130.158.138.0130.158.139.0130.158.140.0130.158.141.0130.158.142.0130.158.143.0130.158.144.0130.158.145.0130.158.146.0130.158.147.0130.158.148.0130.158.149.0130.158.150.0130.158.151.0130.158.152.0130.158.153.0130.158.154.0130.158.155.0130.158.156.0130.158.157.0130.158.158.0130.158.159.0130.158.160.0130.158.161.0130.158.162.0130.158.163.0130.158.164.0130.158.165.0130.158.166.0130.158.167.0130.158.168.0130.158.169.0130.158.170.0130.158.171.0130.158.172.0130.158.173.0130.158.174.0130.158.175.0130.158.176.0130.158.177.0130.158.178.0130.158.179.0130.158.180.0130.158.181.0130.158.182.0130.158.183.0130.158.184.0130.158.185.0130.158.186.0130.158.187.0130.158.188.0130.158.189.0130.158.190.0130.158.191.0130.158.192.0130.158.193.0130.158.194.0130.158.195.0130.158.196.0130.158.197.0130.158.198.0130.158.199.0130.158.200.0130.158.201.0130.158.202.0130.158.203.0130.158.204.0130.158.205.0130.158.206.0130.158.207.0130.158.208.0130.158.209.0130.158.210.0130.158.211.0130.158.212.0130.158.213.0130.158.214.0130.158.215.0130.158.216.0130.158.217.0130.158.218.0130.158.219.0130.158.220.0130.158.221.0130.158.222.0130.158.223.0130.158.224.0130.158.225.0130.158.226.0130.158.227.0130.158.228.0130.158.229.0130.158.230.0130.158.231.0130.158.232.0130.158.233.0130.158.234.0130.158.235.0130.158.236.0130.158.237.0130.158.238.0130.158.239.0130.158.240.0130.158.241.0130.158.242.0130.158.243.0130.158.244.0130.158.245.0130.158.246.0130.158.247.0130.158.248.0130.158.249.0130.158.250.0130.158.251.0130.158.252.0130.158.253.0130.158.254.0130.158.255.0133.51.0.0133.51.1.0133.51.2.0133.51.3.0133.51.4.0133.51.5.0133.51.6.0133.51.7.0133.51.8.0133.51.9.0133.51.10.0133.51.11.0133.51.12.0133.51.13.0133.51.14.0133.51.15.0133.51.16.0133.51.17.0133.51.18.0133.51.19.0133.51.20.0133.51.21.0133.51.22.0133.51.23.0133.51.24.0133.51.25.0133.51.26.0133.51.27.0133.51.28.0133.51.29.0133.51.30.0133.51.31.0133.51.32.0133.51.33.0133.51.34.0133.51.35.0133.51.36.0133.51.37.0133.51.38.0133.51.39.0133.51.40.0133.51.41.0133.51.42.0133.51.43.0133.51.44.0133.51.45.0133.51.46.0133.51.47.0133.51.48.0133.51.49.0133.51.50.0133.51.51.0133.51.52.0133.51.53.0133.51.54.0133.51.55.0133.51.56.0133.51.57.0133.51.58.0133.51.59.0133.51.60.0133.51.61.0133.51.62.0133.51.63.0133.51.64.0133.51.65.0133.51.66.0133.51.67.0133.51.68.0133.51.69.0133.51.70.0133.51.71.0133.51.72.0133.51.73.0133.51.74.0133.51.75.0133.51.76.0133.51.77.0133.51.78.0133.51.79.0133.51.80.0133.51.81.0133.51.82.0133.51.83.0133.51.84.0133.51.85.0133.51.86.0133.51.87.0133.51.88.0133.51.89.0133.51.90.0133.51.91.0133.51.92.0133.51.93.0133.51.94.0133.51.95.0133.51.96.0133.51.97.0133.51.98.0133.51.99.0133.51.100.0133.51.101.0133.51.102.0133.51.103.0133.51.104.0133.51.105.0133.51.106.0133.51.107.0133.51.108.0133.51.109.0133.51.110.0133.51.111.0133.51.112.0133.51.113.0133.51.114.0133.51.115.0133.51.116.0133.51.117.0133.51.118.0133.51.119.0133.51.120.0133.51.121.0133.51.122.0133.51.123.0133.51.124.0133.51.125.0133.51.126.0133.51.127.0133.51.128.0133.51.129.0133.51.130.0133.51.131.0133.51.132.0133.51.133.0133.51.134.0133.51.135.0133.51.136.0133.51.137.0133.51.138.0133.51.139.0133.51.140.0133.51.141.0133.51.142.0133.51.143.0133.51.144.0133.51.145.0133.51.146.0133.51.147.0133.51.148.0133.51.149.0133.51.150.0133.51.151.0133.51.152.0133.51.153.0133.51.154.0133.51.155.0133.51.156.0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