IPv4 Subnet Calculator
Enter an IP with a CIDR prefix or a subnet mask to see its network, broadcast, host range, and host count. You can also split the network into smaller subnets.
private IP (RFC 1918)10.90.0.0/15
network10.90.0.0/15
broadcast10.91.255.255
first host10.90.0.1
last host10.91.255.254
subnet mask255.254.0.0
wildcard0.1.255.255
addresses131,072
usable hosts131,070
classA
ipcalc 10.90.0.0/15
address00001010.01011010.00000000.00000000
subnet mask11111111.11111110.00000000.00000000
network00001010.01011010.00000000.00000000
broadcast00001010.01011011.11111111.11111111
green = network part, grey = host part
hex0x0a5a0000
decimal173670400
reverse dns0.0.90.10.in-addr.arpa
ipv4-mapped::ffff:a5a:0
/15 split into /23 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.90.0.0/23 | 10.90.0.1 – 10.90.1.254 | 10.90.1.255 |
| 2 | 10.90.2.0/23 | 10.90.2.1 – 10.90.3.254 | 10.90.3.255 |
| 3 | 10.90.4.0/23 | 10.90.4.1 – 10.90.5.254 | 10.90.5.255 |
| 4 | 10.90.6.0/23 | 10.90.6.1 – 10.90.7.254 | 10.90.7.255 |
| 5 | 10.90.8.0/23 | 10.90.8.1 – 10.90.9.254 | 10.90.9.255 |
| 6 | 10.90.10.0/23 | 10.90.10.1 – 10.90.11.254 | 10.90.11.255 |
| 7 | 10.90.12.0/23 | 10.90.12.1 – 10.90.13.254 | 10.90.13.255 |
| 8 | 10.90.14.0/23 | 10.90.14.1 – 10.90.15.254 | 10.90.15.255 |
| 9 | 10.90.16.0/23 | 10.90.16.1 – 10.90.17.254 | 10.90.17.255 |
| 10 | 10.90.18.0/23 | 10.90.18.1 – 10.90.19.254 | 10.90.19.255 |
| 11 | 10.90.20.0/23 | 10.90.20.1 – 10.90.21.254 | 10.90.21.255 |
| 12 | 10.90.22.0/23 | 10.90.22.1 – 10.90.23.254 | 10.90.23.255 |
| 13 | 10.90.24.0/23 | 10.90.24.1 – 10.90.25.254 | 10.90.25.255 |
| 14 | 10.90.26.0/23 | 10.90.26.1 – 10.90.27.254 | 10.90.27.255 |
| 15 | 10.90.28.0/23 | 10.90.28.1 – 10.90.29.254 | 10.90.29.255 |
| 16 | 10.90.30.0/23 | 10.90.30.1 – 10.90.31.254 | 10.90.31.255 |
| 17 | 10.90.32.0/23 | 10.90.32.1 – 10.90.33.254 | 10.90.33.255 |
| 18 | 10.90.34.0/23 | 10.90.34.1 – 10.90.35.254 | 10.90.35.255 |
| 19 | 10.90.36.0/23 | 10.90.36.1 – 10.90.37.254 | 10.90.37.255 |
| 20 | 10.90.38.0/23 | 10.90.38.1 – 10.90.39.254 | 10.90.39.255 |
| 21 | 10.90.40.0/23 | 10.90.40.1 – 10.90.41.254 | 10.90.41.255 |
| 22 | 10.90.42.0/23 | 10.90.42.1 – 10.90.43.254 | 10.90.43.255 |
| 23 | 10.90.44.0/23 | 10.90.44.1 – 10.90.45.254 | 10.90.45.255 |
| 24 | 10.90.46.0/23 | 10.90.46.1 – 10.90.47.254 | 10.90.47.255 |
| 25 | 10.90.48.0/23 | 10.90.48.1 – 10.90.49.254 | 10.90.49.255 |
| 26 | 10.90.50.0/23 | 10.90.50.1 – 10.90.51.254 | 10.90.51.255 |
| 27 | 10.90.52.0/23 | 10.90.52.1 – 10.90.53.254 | 10.90.53.255 |
| 28 | 10.90.54.0/23 | 10.90.54.1 – 10.90.55.254 | 10.90.55.255 |
| 29 | 10.90.56.0/23 | 10.90.56.1 – 10.90.57.254 | 10.90.57.255 |
| 30 | 10.90.58.0/23 | 10.90.58.1 – 10.90.59.254 | 10.90.59.255 |
| 31 | 10.90.60.0/23 | 10.90.60.1 – 10.90.61.254 | 10.90.61.255 |
| 32 | 10.90.62.0/23 | 10.90.62.1 – 10.90.63.254 | 10.90.63.255 |
| 33 | 10.90.64.0/23 | 10.90.64.1 – 10.90.65.254 | 10.90.65.255 |
| 34 | 10.90.66.0/23 | 10.90.66.1 – 10.90.67.254 | 10.90.67.255 |
| 35 | 10.90.68.0/23 | 10.90.68.1 – 10.90.69.254 | 10.90.69.255 |
| 36 | 10.90.70.0/23 | 10.90.70.1 – 10.90.71.254 | 10.90.71.255 |
| 37 | 10.90.72.0/23 | 10.90.72.1 – 10.90.73.254 | 10.90.73.255 |
| 38 | 10.90.74.0/23 | 10.90.74.1 – 10.90.75.254 | 10.90.75.255 |
| 39 | 10.90.76.0/23 | 10.90.76.1 – 10.90.77.254 | 10.90.77.255 |
| 40 | 10.90.78.0/23 | 10.90.78.1 – 10.90.79.254 | 10.90.79.255 |
| 41 | 10.90.80.0/23 | 10.90.80.1 – 10.90.81.254 | 10.90.81.255 |
| 42 | 10.90.82.0/23 | 10.90.82.1 – 10.90.83.254 | 10.90.83.255 |
| 43 | 10.90.84.0/23 | 10.90.84.1 – 10.90.85.254 | 10.90.85.255 |
| 44 | 10.90.86.0/23 | 10.90.86.1 – 10.90.87.254 | 10.90.87.255 |
| 45 | 10.90.88.0/23 | 10.90.88.1 – 10.90.89.254 | 10.90.89.255 |
| 46 | 10.90.90.0/23 | 10.90.90.1 – 10.90.91.254 | 10.90.91.255 |
| 47 | 10.90.92.0/23 | 10.90.92.1 – 10.90.93.254 | 10.90.93.255 |
| 48 | 10.90.94.0/23 | 10.90.94.1 – 10.90.95.254 | 10.90.95.255 |
| 49 | 10.90.96.0/23 | 10.90.96.1 – 10.90.97.254 | 10.90.97.255 |
| 50 | 10.90.98.0/23 | 10.90.98.1 – 10.90.99.254 | 10.90.99.255 |
| 51 | 10.90.100.0/23 | 10.90.100.1 – 10.90.101.254 | 10.90.101.255 |
| 52 | 10.90.102.0/23 | 10.90.102.1 – 10.90.103.254 | 10.90.103.255 |
| 53 | 10.90.104.0/23 | 10.90.104.1 – 10.90.105.254 | 10.90.105.255 |
| 54 | 10.90.106.0/23 | 10.90.106.1 – 10.90.107.254 | 10.90.107.255 |
| 55 | 10.90.108.0/23 | 10.90.108.1 – 10.90.109.254 | 10.90.109.255 |
| 56 | 10.90.110.0/23 | 10.90.110.1 – 10.90.111.254 | 10.90.111.255 |
| 57 | 10.90.112.0/23 | 10.90.112.1 – 10.90.113.254 | 10.90.113.255 |
| 58 | 10.90.114.0/23 | 10.90.114.1 – 10.90.115.254 | 10.90.115.255 |
| 59 | 10.90.116.0/23 | 10.90.116.1 – 10.90.117.254 | 10.90.117.255 |
| 60 | 10.90.118.0/23 | 10.90.118.1 – 10.90.119.254 | 10.90.119.255 |
| 61 | 10.90.120.0/23 | 10.90.120.1 – 10.90.121.254 | 10.90.121.255 |
| 62 | 10.90.122.0/23 | 10.90.122.1 – 10.90.123.254 | 10.90.123.255 |
| 63 | 10.90.124.0/23 | 10.90.124.1 – 10.90.125.254 | 10.90.125.255 |
| 64 | 10.90.126.0/23 | 10.90.126.1 – 10.90.127.254 | 10.90.127.255 |
| 65 | 10.90.128.0/23 | 10.90.128.1 – 10.90.129.254 | 10.90.129.255 |
| 66 | 10.90.130.0/23 | 10.90.130.1 – 10.90.131.254 | 10.90.131.255 |
| 67 | 10.90.132.0/23 | 10.90.132.1 – 10.90.133.254 | 10.90.133.255 |
| 68 | 10.90.134.0/23 | 10.90.134.1 – 10.90.135.254 | 10.90.135.255 |
| 69 | 10.90.136.0/23 | 10.90.136.1 – 10.90.137.254 | 10.90.137.255 |
| 70 | 10.90.138.0/23 | 10.90.138.1 – 10.90.139.254 | 10.90.139.255 |
| 71 | 10.90.140.0/23 | 10.90.140.1 – 10.90.141.254 | 10.90.141.255 |
| 72 | 10.90.142.0/23 | 10.90.142.1 – 10.90.143.254 | 10.90.143.255 |
| 73 | 10.90.144.0/23 | 10.90.144.1 – 10.90.145.254 | 10.90.145.255 |
| 74 | 10.90.146.0/23 | 10.90.146.1 – 10.90.147.254 | 10.90.147.255 |
| 75 | 10.90.148.0/23 | 10.90.148.1 – 10.90.149.254 | 10.90.149.255 |
| 76 | 10.90.150.0/23 | 10.90.150.1 – 10.90.151.254 | 10.90.151.255 |
| 77 | 10.90.152.0/23 | 10.90.152.1 – 10.90.153.254 | 10.90.153.255 |
| 78 | 10.90.154.0/23 | 10.90.154.1 – 10.90.155.254 | 10.90.155.255 |
| 79 | 10.90.156.0/23 | 10.90.156.1 – 10.90.157.254 | 10.90.157.255 |
| 80 | 10.90.158.0/23 | 10.90.158.1 – 10.90.159.254 | 10.90.159.255 |
| 81 | 10.90.160.0/23 | 10.90.160.1 – 10.90.161.254 | 10.90.161.255 |
| 82 | 10.90.162.0/23 | 10.90.162.1 – 10.90.163.254 | 10.90.163.255 |
| 83 | 10.90.164.0/23 | 10.90.164.1 – 10.90.165.254 | 10.90.165.255 |
| 84 | 10.90.166.0/23 | 10.90.166.1 – 10.90.167.254 | 10.90.167.255 |
| 85 | 10.90.168.0/23 | 10.90.168.1 – 10.90.169.254 | 10.90.169.255 |
| 86 | 10.90.170.0/23 | 10.90.170.1 – 10.90.171.254 | 10.90.171.255 |
| 87 | 10.90.172.0/23 | 10.90.172.1 – 10.90.173.254 | 10.90.173.255 |
| 88 | 10.90.174.0/23 | 10.90.174.1 – 10.90.175.254 | 10.90.175.255 |
| 89 | 10.90.176.0/23 | 10.90.176.1 – 10.90.177.254 | 10.90.177.255 |
| 90 | 10.90.178.0/23 | 10.90.178.1 – 10.90.179.254 | 10.90.179.255 |
| 91 | 10.90.180.0/23 | 10.90.180.1 – 10.90.181.254 | 10.90.181.255 |
| 92 | 10.90.182.0/23 | 10.90.182.1 – 10.90.183.254 | 10.90.183.255 |
| 93 | 10.90.184.0/23 | 10.90.184.1 – 10.90.185.254 | 10.90.185.255 |
| 94 | 10.90.186.0/23 | 10.90.186.1 – 10.90.187.254 | 10.90.187.255 |
| 95 | 10.90.188.0/23 | 10.90.188.1 – 10.90.189.254 | 10.90.189.255 |
| 96 | 10.90.190.0/23 | 10.90.190.1 – 10.90.191.254 | 10.90.191.255 |
| 97 | 10.90.192.0/23 | 10.90.192.1 – 10.90.193.254 | 10.90.193.255 |
| 98 | 10.90.194.0/23 | 10.90.194.1 – 10.90.195.254 | 10.90.195.255 |
| 99 | 10.90.196.0/23 | 10.90.196.1 – 10.90.197.254 | 10.90.197.255 |
| 100 | 10.90.198.0/23 | 10.90.198.1 – 10.90.199.254 | 10.90.199.255 |
| 101 | 10.90.200.0/23 | 10.90.200.1 – 10.90.201.254 | 10.90.201.255 |
| 102 | 10.90.202.0/23 | 10.90.202.1 – 10.90.203.254 | 10.90.203.255 |
| 103 | 10.90.204.0/23 | 10.90.204.1 – 10.90.205.254 | 10.90.205.255 |
| 104 | 10.90.206.0/23 | 10.90.206.1 – 10.90.207.254 | 10.90.207.255 |
| 105 | 10.90.208.0/23 | 10.90.208.1 – 10.90.209.254 | 10.90.209.255 |
| 106 | 10.90.210.0/23 | 10.90.210.1 – 10.90.211.254 | 10.90.211.255 |
| 107 | 10.90.212.0/23 | 10.90.212.1 – 10.90.213.254 | 10.90.213.255 |
| 108 | 10.90.214.0/23 | 10.90.214.1 – 10.90.215.254 | 10.90.215.255 |
| 109 | 10.90.216.0/23 | 10.90.216.1 – 10.90.217.254 | 10.90.217.255 |
| 110 | 10.90.218.0/23 | 10.90.218.1 – 10.90.219.254 | 10.90.219.255 |
| 111 | 10.90.220.0/23 | 10.90.220.1 – 10.90.221.254 | 10.90.221.255 |
| 112 | 10.90.222.0/23 | 10.90.222.1 – 10.90.223.254 | 10.90.223.255 |
| 113 | 10.90.224.0/23 | 10.90.224.1 – 10.90.225.254 | 10.90.225.255 |
| 114 | 10.90.226.0/23 | 10.90.226.1 – 10.90.227.254 | 10.90.227.255 |
| 115 | 10.90.228.0/23 | 10.90.228.1 – 10.90.229.254 | 10.90.229.255 |
| 116 | 10.90.230.0/23 | 10.90.230.1 – 10.90.231.254 | 10.90.231.255 |
| 117 | 10.90.232.0/23 | 10.90.232.1 – 10.90.233.254 | 10.90.233.255 |
| 118 | 10.90.234.0/23 | 10.90.234.1 – 10.90.235.254 | 10.90.235.255 |
| 119 | 10.90.236.0/23 | 10.90.236.1 – 10.90.237.254 | 10.90.237.255 |
| 120 | 10.90.238.0/23 | 10.90.238.1 – 10.90.239.254 | 10.90.239.255 |
| 121 | 10.90.240.0/23 | 10.90.240.1 – 10.90.241.254 | 10.90.241.255 |
| 122 | 10.90.242.0/23 | 10.90.242.1 – 10.90.243.254 | 10.90.243.255 |
| 123 | 10.90.244.0/23 | 10.90.244.1 – 10.90.245.254 | 10.90.245.255 |
| 124 | 10.90.246.0/23 | 10.90.246.1 – 10.90.247.254 | 10.90.247.255 |
| 125 | 10.90.248.0/23 | 10.90.248.1 – 10.90.249.254 | 10.90.249.255 |
| 126 | 10.90.250.0/23 | 10.90.250.1 – 10.90.251.254 | 10.90.251.255 |
| 127 | 10.90.252.0/23 | 10.90.252.1 – 10.90.253.254 | 10.90.253.255 |
| 128 | 10.90.254.0/23 | 10.90.254.1 – 10.90.255.254 | 10.90.255.255 |
| 129 | 10.91.0.0/23 | 10.91.0.1 – 10.91.1.254 | 10.91.1.255 |
| 130 | 10.91.2.0/23 | 10.91.2.1 – 10.91.3.254 | 10.91.3.255 |
| 131 | 10.91.4.0/23 | 10.91.4.1 – 10.91.5.254 | 10.91.5.255 |
| 132 | 10.91.6.0/23 | 10.91.6.1 – 10.91.7.254 | 10.91.7.255 |
| 133 | 10.91.8.0/23 | 10.91.8.1 – 10.91.9.254 | 10.91.9.255 |
| 134 | 10.91.10.0/23 | 10.91.10.1 – 10.91.11.254 | 10.91.11.255 |
| 135 | 10.91.12.0/23 | 10.91.12.1 – 10.91.13.254 | 10.91.13.255 |
| 136 | 10.91.14.0/23 | 10.91.14.1 – 10.91.15.254 | 10.91.15.255 |
| 137 | 10.91.16.0/23 | 10.91.16.1 – 10.91.17.254 | 10.91.17.255 |
| 138 | 10.91.18.0/23 | 10.91.18.1 – 10.91.19.254 | 10.91.19.255 |
| 139 | 10.91.20.0/23 | 10.91.20.1 – 10.91.21.254 | 10.91.21.255 |
| 140 | 10.91.22.0/23 | 10.91.22.1 – 10.91.23.254 | 10.91.23.255 |
| 141 | 10.91.24.0/23 | 10.91.24.1 – 10.91.25.254 | 10.91.25.255 |
| 142 | 10.91.26.0/23 | 10.91.26.1 – 10.91.27.254 | 10.91.27.255 |
| 143 | 10.91.28.0/23 | 10.91.28.1 – 10.91.29.254 | 10.91.29.255 |
| 144 | 10.91.30.0/23 | 10.91.30.1 – 10.91.31.254 | 10.91.31.255 |
| 145 | 10.91.32.0/23 | 10.91.32.1 – 10.91.33.254 | 10.91.33.255 |
| 146 | 10.91.34.0/23 | 10.91.34.1 – 10.91.35.254 | 10.91.35.255 |
| 147 | 10.91.36.0/23 | 10.91.36.1 – 10.91.37.254 | 10.91.37.255 |
| 148 | 10.91.38.0/23 | 10.91.38.1 – 10.91.39.254 | 10.91.39.255 |
| 149 | 10.91.40.0/23 | 10.91.40.1 – 10.91.41.254 | 10.91.41.255 |
| 150 | 10.91.42.0/23 | 10.91.42.1 – 10.91.43.254 | 10.91.43.255 |
| 151 | 10.91.44.0/23 | 10.91.44.1 – 10.91.45.254 | 10.91.45.255 |
| 152 | 10.91.46.0/23 | 10.91.46.1 – 10.91.47.254 | 10.91.47.255 |
| 153 | 10.91.48.0/23 | 10.91.48.1 – 10.91.49.254 | 10.91.49.255 |
| 154 | 10.91.50.0/23 | 10.91.50.1 – 10.91.51.254 | 10.91.51.255 |
| 155 | 10.91.52.0/23 | 10.91.52.1 – 10.91.53.254 | 10.91.53.255 |
| 156 | 10.91.54.0/23 | 10.91.54.1 – 10.91.55.254 | 10.91.55.255 |
| 157 | 10.91.56.0/23 | 10.91.56.1 – 10.91.57.254 | 10.91.57.255 |
| 158 | 10.91.58.0/23 | 10.91.58.1 – 10.91.59.254 | 10.91.59.255 |
| 159 | 10.91.60.0/23 | 10.91.60.1 – 10.91.61.254 | 10.91.61.255 |
| 160 | 10.91.62.0/23 | 10.91.62.1 – 10.91.63.254 | 10.91.63.255 |
| 161 | 10.91.64.0/23 | 10.91.64.1 – 10.91.65.254 | 10.91.65.255 |
| 162 | 10.91.66.0/23 | 10.91.66.1 – 10.91.67.254 | 10.91.67.255 |
| 163 | 10.91.68.0/23 | 10.91.68.1 – 10.91.69.254 | 10.91.69.255 |
| 164 | 10.91.70.0/23 | 10.91.70.1 – 10.91.71.254 | 10.91.71.255 |
| 165 | 10.91.72.0/23 | 10.91.72.1 – 10.91.73.254 | 10.91.73.255 |
| 166 | 10.91.74.0/23 | 10.91.74.1 – 10.91.75.254 | 10.91.75.255 |
| 167 | 10.91.76.0/23 | 10.91.76.1 – 10.91.77.254 | 10.91.77.255 |
| 168 | 10.91.78.0/23 | 10.91.78.1 – 10.91.79.254 | 10.91.79.255 |
| 169 | 10.91.80.0/23 | 10.91.80.1 – 10.91.81.254 | 10.91.81.255 |
| 170 | 10.91.82.0/23 | 10.91.82.1 – 10.91.83.254 | 10.91.83.255 |
| 171 | 10.91.84.0/23 | 10.91.84.1 – 10.91.85.254 | 10.91.85.255 |
| 172 | 10.91.86.0/23 | 10.91.86.1 – 10.91.87.254 | 10.91.87.255 |
| 173 | 10.91.88.0/23 | 10.91.88.1 – 10.91.89.254 | 10.91.89.255 |
| 174 | 10.91.90.0/23 | 10.91.90.1 – 10.91.91.254 | 10.91.91.255 |
| 175 | 10.91.92.0/23 | 10.91.92.1 – 10.91.93.254 | 10.91.93.255 |
| 176 | 10.91.94.0/23 | 10.91.94.1 – 10.91.95.254 | 10.91.95.255 |
| 177 | 10.91.96.0/23 | 10.91.96.1 – 10.91.97.254 | 10.91.97.255 |
| 178 | 10.91.98.0/23 | 10.91.98.1 – 10.91.99.254 | 10.91.99.255 |
| 179 | 10.91.100.0/23 | 10.91.100.1 – 10.91.101.254 | 10.91.101.255 |
| 180 | 10.91.102.0/23 | 10.91.102.1 – 10.91.103.254 | 10.91.103.255 |
| 181 | 10.91.104.0/23 | 10.91.104.1 – 10.91.105.254 | 10.91.105.255 |
| 182 | 10.91.106.0/23 | 10.91.106.1 – 10.91.107.254 | 10.91.107.255 |
| 183 | 10.91.108.0/23 | 10.91.108.1 – 10.91.109.254 | 10.91.109.255 |
| 184 | 10.91.110.0/23 | 10.91.110.1 – 10.91.111.254 | 10.91.111.255 |
| 185 | 10.91.112.0/23 | 10.91.112.1 – 10.91.113.254 | 10.91.113.255 |
| 186 | 10.91.114.0/23 | 10.91.114.1 – 10.91.115.254 | 10.91.115.255 |
| 187 | 10.91.116.0/23 | 10.91.116.1 – 10.91.117.254 | 10.91.117.255 |
| 188 | 10.91.118.0/23 | 10.91.118.1 – 10.91.119.254 | 10.91.119.255 |
| 189 | 10.91.120.0/23 | 10.91.120.1 – 10.91.121.254 | 10.91.121.255 |
| 190 | 10.91.122.0/23 | 10.91.122.1 – 10.91.123.254 | 10.91.123.255 |
| 191 | 10.91.124.0/23 | 10.91.124.1 – 10.91.125.254 | 10.91.125.255 |
| 192 | 10.91.126.0/23 | 10.91.126.1 – 10.91.127.254 | 10.91.127.255 |
| 193 | 10.91.128.0/23 | 10.91.128.1 – 10.91.129.254 | 10.91.129.255 |
| 194 | 10.91.130.0/23 | 10.91.130.1 – 10.91.131.254 | 10.91.131.255 |
| 195 | 10.91.132.0/23 | 10.91.132.1 – 10.91.133.254 | 10.91.133.255 |
| 196 | 10.91.134.0/23 | 10.91.134.1 – 10.91.135.254 | 10.91.135.255 |
| 197 | 10.91.136.0/23 | 10.91.136.1 – 10.91.137.254 | 10.91.137.255 |
| 198 | 10.91.138.0/23 | 10.91.138.1 – 10.91.139.254 | 10.91.139.255 |
| 199 | 10.91.140.0/23 | 10.91.140.1 – 10.91.141.254 | 10.91.141.255 |
| 200 | 10.91.142.0/23 | 10.91.142.1 – 10.91.143.254 | 10.91.143.255 |
| 201 | 10.91.144.0/23 | 10.91.144.1 – 10.91.145.254 | 10.91.145.255 |
| 202 | 10.91.146.0/23 | 10.91.146.1 – 10.91.147.254 | 10.91.147.255 |
| 203 | 10.91.148.0/23 | 10.91.148.1 – 10.91.149.254 | 10.91.149.255 |
| 204 | 10.91.150.0/23 | 10.91.150.1 – 10.91.151.254 | 10.91.151.255 |
| 205 | 10.91.152.0/23 | 10.91.152.1 – 10.91.153.254 | 10.91.153.255 |
| 206 | 10.91.154.0/23 | 10.91.154.1 – 10.91.155.254 | 10.91.155.255 |
| 207 | 10.91.156.0/23 | 10.91.156.1 – 10.91.157.254 | 10.91.157.255 |
| 208 | 10.91.158.0/23 | 10.91.158.1 – 10.91.159.254 | 10.91.159.255 |
| 209 | 10.91.160.0/23 | 10.91.160.1 – 10.91.161.254 | 10.91.161.255 |
| 210 | 10.91.162.0/23 | 10.91.162.1 – 10.91.163.254 | 10.91.163.255 |
| 211 | 10.91.164.0/23 | 10.91.164.1 – 10.91.165.254 | 10.91.165.255 |
| 212 | 10.91.166.0/23 | 10.91.166.1 – 10.91.167.254 | 10.91.167.255 |
| 213 | 10.91.168.0/23 | 10.91.168.1 – 10.91.169.254 | 10.91.169.255 |
| 214 | 10.91.170.0/23 | 10.91.170.1 – 10.91.171.254 | 10.91.171.255 |
| 215 | 10.91.172.0/23 | 10.91.172.1 – 10.91.173.254 | 10.91.173.255 |
| 216 | 10.91.174.0/23 | 10.91.174.1 – 10.91.175.254 | 10.91.175.255 |
| 217 | 10.91.176.0/23 | 10.91.176.1 – 10.91.177.254 | 10.91.177.255 |
| 218 | 10.91.178.0/23 | 10.91.178.1 – 10.91.179.254 | 10.91.179.255 |
| 219 | 10.91.180.0/23 | 10.91.180.1 – 10.91.181.254 | 10.91.181.255 |
| 220 | 10.91.182.0/23 | 10.91.182.1 – 10.91.183.254 | 10.91.183.255 |
| 221 | 10.91.184.0/23 | 10.91.184.1 – 10.91.185.254 | 10.91.185.255 |
| 222 | 10.91.186.0/23 | 10.91.186.1 – 10.91.187.254 | 10.91.187.255 |
| 223 | 10.91.188.0/23 | 10.91.188.1 – 10.91.189.254 | 10.91.189.255 |
| 224 | 10.91.190.0/23 | 10.91.190.1 – 10.91.191.254 | 10.91.191.255 |
| 225 | 10.91.192.0/23 | 10.91.192.1 – 10.91.193.254 | 10.91.193.255 |
| 226 | 10.91.194.0/23 | 10.91.194.1 – 10.91.195.254 | 10.91.195.255 |
| 227 | 10.91.196.0/23 | 10.91.196.1 – 10.91.197.254 | 10.91.197.255 |
| 228 | 10.91.198.0/23 | 10.91.198.1 – 10.91.199.254 | 10.91.199.255 |
| 229 | 10.91.200.0/23 | 10.91.200.1 – 10.91.201.254 | 10.91.201.255 |
| 230 | 10.91.202.0/23 | 10.91.202.1 – 10.91.203.254 | 10.91.203.255 |
| 231 | 10.91.204.0/23 | 10.91.204.1 – 10.91.205.254 | 10.91.205.255 |
| 232 | 10.91.206.0/23 | 10.91.206.1 – 10.91.207.254 | 10.91.207.255 |
| 233 | 10.91.208.0/23 | 10.91.208.1 – 10.91.209.254 | 10.91.209.255 |
| 234 | 10.91.210.0/23 | 10.91.210.1 – 10.91.211.254 | 10.91.211.255 |
| 235 | 10.91.212.0/23 | 10.91.212.1 – 10.91.213.254 | 10.91.213.255 |
| 236 | 10.91.214.0/23 | 10.91.214.1 – 10.91.215.254 | 10.91.215.255 |
| 237 | 10.91.216.0/23 | 10.91.216.1 – 10.91.217.254 | 10.91.217.255 |
| 238 | 10.91.218.0/23 | 10.91.218.1 – 10.91.219.254 | 10.91.219.255 |
| 239 | 10.91.220.0/23 | 10.91.220.1 – 10.91.221.254 | 10.91.221.255 |
| 240 | 10.91.222.0/23 | 10.91.222.1 – 10.91.223.254 | 10.91.223.255 |
| 241 | 10.91.224.0/23 | 10.91.224.1 – 10.91.225.254 | 10.91.225.255 |
| 242 | 10.91.226.0/23 | 10.91.226.1 – 10.91.227.254 | 10.91.227.255 |
| 243 | 10.91.228.0/23 | 10.91.228.1 – 10.91.229.254 | 10.91.229.255 |
| 244 | 10.91.230.0/23 | 10.91.230.1 – 10.91.231.254 | 10.91.231.255 |
| 245 | 10.91.232.0/23 | 10.91.232.1 – 10.91.233.254 | 10.91.233.255 |
| 246 | 10.91.234.0/23 | 10.91.234.1 – 10.91.235.254 | 10.91.235.255 |
| 247 | 10.91.236.0/23 | 10.91.236.1 – 10.91.237.254 | 10.91.237.255 |
| 248 | 10.91.238.0/23 | 10.91.238.1 – 10.91.239.254 | 10.91.239.255 |
| 249 | 10.91.240.0/23 | 10.91.240.1 – 10.91.241.254 | 10.91.241.255 |
| 250 | 10.91.242.0/23 | 10.91.242.1 – 10.91.243.254 | 10.91.243.255 |
| 251 | 10.91.244.0/23 | 10.91.244.1 – 10.91.245.254 | 10.91.245.255 |
| 252 | 10.91.246.0/23 | 10.91.246.1 – 10.91.247.254 | 10.91.247.255 |
| 253 | 10.91.248.0/23 | 10.91.248.1 – 10.91.249.254 | 10.91.249.255 |
| 254 | 10.91.250.0/23 | 10.91.250.1 – 10.91.251.254 | 10.91.251.255 |
| 255 | 10.91.252.0/23 | 10.91.252.1 – 10.91.253.254 | 10.91.253.255 |
| 256 | 10.91.254.0/23 | 10.91.254.1 – 10.91.255.254 | 10.91.255.255 |
01 / table
IPv4 CIDR prefix table.
Click a prefix longer than your network to split it into subnets.
| prefix | subnet mask | addresses | hosts | in your /15 |
|---|---|---|---|---|
| /0 | 0.0.0.0 | 4,294,967,296 | 4,294,967,294 | - |
| /1 | 128.0.0.0 | 2,147,483,648 | 2,147,483,646 | - |
| /2 | 192.0.0.0 | 1,073,741,824 | 1,073,741,822 | - |
| /3 | 224.0.0.0 | 536,870,912 | 536,870,910 | - |
| /4 | 240.0.0.0 | 268,435,456 | 268,435,454 | - |
| /5 | 248.0.0.0 | 134,217,728 | 134,217,726 | - |
| /6 | 252.0.0.0 | 67,108,864 | 67,108,862 | - |
| /7 | 254.0.0.0 | 33,554,432 | 33,554,430 | - |
| /8 | 255.0.0.0 | 16,777,216 | 16,777,214 | - |
| /9 | 255.128.0.0 | 8,388,608 | 8,388,606 | - |
| /10 | 255.192.0.0 | 4,194,304 | 4,194,302 | - |
| /11 | 255.224.0.0 | 2,097,152 | 2,097,150 | - |
| /12 | 255.240.0.0 | 1,048,576 | 1,048,574 | - |
| /13 | 255.248.0.0 | 524,288 | 524,286 | - |
| /14 | 255.252.0.0 | 262,144 | 262,142 | - |
| /15 | 255.254.0.0 | 131,072 | 131,070 | 1 |
| /16 | 255.255.0.0 | 65,536 | 65,534 | 2 split → |
| /17 | 255.255.128.0 | 32,768 | 32,766 | 4 split → |
| /18 | 255.255.192.0 | 16,384 | 16,382 | 8 split → |
| /19 | 255.255.224.0 | 8,192 | 8,190 | 16 split → |
| /20 | 255.255.240.0 | 4,096 | 4,094 | 32 split → |
| /21 | 255.255.248.0 | 2,048 | 2,046 | 64 split → |
| /22 | 255.255.252.0 | 1,024 | 1,022 | 128 split → |
| /23 | 255.255.254.0 | 512 | 510 | 256 split → |
| /24 | 255.255.255.0 | 256 | 254 | 512 split → |
| /25 | 255.255.255.128 | 128 | 126 | 1,024 split → |
| /26 | 255.255.255.192 | 64 | 62 | 2,048 split → |
| /27 | 255.255.255.224 | 32 | 30 | 4,096 split → |
| /28 | 255.255.255.240 | 16 | 14 | 8,192 split → |
| /29 | 255.255.255.248 | 8 | 6 | 16,384 split → |
| /30 | 255.255.255.252 | 4 | 2 | 32,768 split → |
| /31 | 255.255.255.254 | 2 | 2 | 65,536 split → |
| /32 | 255.255.255.255 | 1 | 1 | 131,072 split → |
02 / faq
About this calculator.
How do I use this subnet calculator?
▼
Type an IP address followed by a prefix, like 192.168.1.10/24, or by a subnet mask, like 192.168.1.10 255.255.255.0. Without a prefix it uses /24. Click a row in the table to split the network into smaller subnets.
Why are usable hosts always 2 fewer?
▼
The first address in a subnet is the network address and the last is the broadcast address, so neither can go to a device. The exceptions are /31 (point-to-point links, RFC 3021) and /32 (a single address), which use every address.
Can I use it from a terminal?
▼
Yes. curl 'ipku.in/en/tools/ipv4-subnet-calculator?q=192.168.1.10/24' returns the result as plain text.