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)10.24.0.0/13
network10.24.0.0/13
broadcast10.31.255.255
first host10.24.0.1
last host10.31.255.254
subnet mask255.248.0.0
wildcard0.7.255.255
addresses524,288
usable hosts524,286
classA
ipcalc 10.24.0.0/13
address00001010.00011000.00000000.00000000
subnet mask11111111.11111000.00000000.00000000
network00001010.00011000.00000000.00000000
broadcast00001010.00011111.11111111.11111111
green = network part, grey = host part
hex0x0a180000
decimal169345024
reverse dns0.0.24.10.in-addr.arpa
ipv4-mapped::ffff:a18:0
/13 split into /21 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.24.0.0/21 | 10.24.0.1 – 10.24.7.254 | 10.24.7.255 |
| 2 | 10.24.8.0/21 | 10.24.8.1 – 10.24.15.254 | 10.24.15.255 |
| 3 | 10.24.16.0/21 | 10.24.16.1 – 10.24.23.254 | 10.24.23.255 |
| 4 | 10.24.24.0/21 | 10.24.24.1 – 10.24.31.254 | 10.24.31.255 |
| 5 | 10.24.32.0/21 | 10.24.32.1 – 10.24.39.254 | 10.24.39.255 |
| 6 | 10.24.40.0/21 | 10.24.40.1 – 10.24.47.254 | 10.24.47.255 |
| 7 | 10.24.48.0/21 | 10.24.48.1 – 10.24.55.254 | 10.24.55.255 |
| 8 | 10.24.56.0/21 | 10.24.56.1 – 10.24.63.254 | 10.24.63.255 |
| 9 | 10.24.64.0/21 | 10.24.64.1 – 10.24.71.254 | 10.24.71.255 |
| 10 | 10.24.72.0/21 | 10.24.72.1 – 10.24.79.254 | 10.24.79.255 |
| 11 | 10.24.80.0/21 | 10.24.80.1 – 10.24.87.254 | 10.24.87.255 |
| 12 | 10.24.88.0/21 | 10.24.88.1 – 10.24.95.254 | 10.24.95.255 |
| 13 | 10.24.96.0/21 | 10.24.96.1 – 10.24.103.254 | 10.24.103.255 |
| 14 | 10.24.104.0/21 | 10.24.104.1 – 10.24.111.254 | 10.24.111.255 |
| 15 | 10.24.112.0/21 | 10.24.112.1 – 10.24.119.254 | 10.24.119.255 |
| 16 | 10.24.120.0/21 | 10.24.120.1 – 10.24.127.254 | 10.24.127.255 |
| 17 | 10.24.128.0/21 | 10.24.128.1 – 10.24.135.254 | 10.24.135.255 |
| 18 | 10.24.136.0/21 | 10.24.136.1 – 10.24.143.254 | 10.24.143.255 |
| 19 | 10.24.144.0/21 | 10.24.144.1 – 10.24.151.254 | 10.24.151.255 |
| 20 | 10.24.152.0/21 | 10.24.152.1 – 10.24.159.254 | 10.24.159.255 |
| 21 | 10.24.160.0/21 | 10.24.160.1 – 10.24.167.254 | 10.24.167.255 |
| 22 | 10.24.168.0/21 | 10.24.168.1 – 10.24.175.254 | 10.24.175.255 |
| 23 | 10.24.176.0/21 | 10.24.176.1 – 10.24.183.254 | 10.24.183.255 |
| 24 | 10.24.184.0/21 | 10.24.184.1 – 10.24.191.254 | 10.24.191.255 |
| 25 | 10.24.192.0/21 | 10.24.192.1 – 10.24.199.254 | 10.24.199.255 |
| 26 | 10.24.200.0/21 | 10.24.200.1 – 10.24.207.254 | 10.24.207.255 |
| 27 | 10.24.208.0/21 | 10.24.208.1 – 10.24.215.254 | 10.24.215.255 |
| 28 | 10.24.216.0/21 | 10.24.216.1 – 10.24.223.254 | 10.24.223.255 |
| 29 | 10.24.224.0/21 | 10.24.224.1 – 10.24.231.254 | 10.24.231.255 |
| 30 | 10.24.232.0/21 | 10.24.232.1 – 10.24.239.254 | 10.24.239.255 |
| 31 | 10.24.240.0/21 | 10.24.240.1 – 10.24.247.254 | 10.24.247.255 |
| 32 | 10.24.248.0/21 | 10.24.248.1 – 10.24.255.254 | 10.24.255.255 |
| 33 | 10.25.0.0/21 | 10.25.0.1 – 10.25.7.254 | 10.25.7.255 |
| 34 | 10.25.8.0/21 | 10.25.8.1 – 10.25.15.254 | 10.25.15.255 |
| 35 | 10.25.16.0/21 | 10.25.16.1 – 10.25.23.254 | 10.25.23.255 |
| 36 | 10.25.24.0/21 | 10.25.24.1 – 10.25.31.254 | 10.25.31.255 |
| 37 | 10.25.32.0/21 | 10.25.32.1 – 10.25.39.254 | 10.25.39.255 |
| 38 | 10.25.40.0/21 | 10.25.40.1 – 10.25.47.254 | 10.25.47.255 |
| 39 | 10.25.48.0/21 | 10.25.48.1 – 10.25.55.254 | 10.25.55.255 |
| 40 | 10.25.56.0/21 | 10.25.56.1 – 10.25.63.254 | 10.25.63.255 |
| 41 | 10.25.64.0/21 | 10.25.64.1 – 10.25.71.254 | 10.25.71.255 |
| 42 | 10.25.72.0/21 | 10.25.72.1 – 10.25.79.254 | 10.25.79.255 |
| 43 | 10.25.80.0/21 | 10.25.80.1 – 10.25.87.254 | 10.25.87.255 |
| 44 | 10.25.88.0/21 | 10.25.88.1 – 10.25.95.254 | 10.25.95.255 |
| 45 | 10.25.96.0/21 | 10.25.96.1 – 10.25.103.254 | 10.25.103.255 |
| 46 | 10.25.104.0/21 | 10.25.104.1 – 10.25.111.254 | 10.25.111.255 |
| 47 | 10.25.112.0/21 | 10.25.112.1 – 10.25.119.254 | 10.25.119.255 |
| 48 | 10.25.120.0/21 | 10.25.120.1 – 10.25.127.254 | 10.25.127.255 |
| 49 | 10.25.128.0/21 | 10.25.128.1 – 10.25.135.254 | 10.25.135.255 |
| 50 | 10.25.136.0/21 | 10.25.136.1 – 10.25.143.254 | 10.25.143.255 |
| 51 | 10.25.144.0/21 | 10.25.144.1 – 10.25.151.254 | 10.25.151.255 |
| 52 | 10.25.152.0/21 | 10.25.152.1 – 10.25.159.254 | 10.25.159.255 |
| 53 | 10.25.160.0/21 | 10.25.160.1 – 10.25.167.254 | 10.25.167.255 |
| 54 | 10.25.168.0/21 | 10.25.168.1 – 10.25.175.254 | 10.25.175.255 |
| 55 | 10.25.176.0/21 | 10.25.176.1 – 10.25.183.254 | 10.25.183.255 |
| 56 | 10.25.184.0/21 | 10.25.184.1 – 10.25.191.254 | 10.25.191.255 |
| 57 | 10.25.192.0/21 | 10.25.192.1 – 10.25.199.254 | 10.25.199.255 |
| 58 | 10.25.200.0/21 | 10.25.200.1 – 10.25.207.254 | 10.25.207.255 |
| 59 | 10.25.208.0/21 | 10.25.208.1 – 10.25.215.254 | 10.25.215.255 |
| 60 | 10.25.216.0/21 | 10.25.216.1 – 10.25.223.254 | 10.25.223.255 |
| 61 | 10.25.224.0/21 | 10.25.224.1 – 10.25.231.254 | 10.25.231.255 |
| 62 | 10.25.232.0/21 | 10.25.232.1 – 10.25.239.254 | 10.25.239.255 |
| 63 | 10.25.240.0/21 | 10.25.240.1 – 10.25.247.254 | 10.25.247.255 |
| 64 | 10.25.248.0/21 | 10.25.248.1 – 10.25.255.254 | 10.25.255.255 |
| 65 | 10.26.0.0/21 | 10.26.0.1 – 10.26.7.254 | 10.26.7.255 |
| 66 | 10.26.8.0/21 | 10.26.8.1 – 10.26.15.254 | 10.26.15.255 |
| 67 | 10.26.16.0/21 | 10.26.16.1 – 10.26.23.254 | 10.26.23.255 |
| 68 | 10.26.24.0/21 | 10.26.24.1 – 10.26.31.254 | 10.26.31.255 |
| 69 | 10.26.32.0/21 | 10.26.32.1 – 10.26.39.254 | 10.26.39.255 |
| 70 | 10.26.40.0/21 | 10.26.40.1 – 10.26.47.254 | 10.26.47.255 |
| 71 | 10.26.48.0/21 | 10.26.48.1 – 10.26.55.254 | 10.26.55.255 |
| 72 | 10.26.56.0/21 | 10.26.56.1 – 10.26.63.254 | 10.26.63.255 |
| 73 | 10.26.64.0/21 | 10.26.64.1 – 10.26.71.254 | 10.26.71.255 |
| 74 | 10.26.72.0/21 | 10.26.72.1 – 10.26.79.254 | 10.26.79.255 |
| 75 | 10.26.80.0/21 | 10.26.80.1 – 10.26.87.254 | 10.26.87.255 |
| 76 | 10.26.88.0/21 | 10.26.88.1 – 10.26.95.254 | 10.26.95.255 |
| 77 | 10.26.96.0/21 | 10.26.96.1 – 10.26.103.254 | 10.26.103.255 |
| 78 | 10.26.104.0/21 | 10.26.104.1 – 10.26.111.254 | 10.26.111.255 |
| 79 | 10.26.112.0/21 | 10.26.112.1 – 10.26.119.254 | 10.26.119.255 |
| 80 | 10.26.120.0/21 | 10.26.120.1 – 10.26.127.254 | 10.26.127.255 |
| 81 | 10.26.128.0/21 | 10.26.128.1 – 10.26.135.254 | 10.26.135.255 |
| 82 | 10.26.136.0/21 | 10.26.136.1 – 10.26.143.254 | 10.26.143.255 |
| 83 | 10.26.144.0/21 | 10.26.144.1 – 10.26.151.254 | 10.26.151.255 |
| 84 | 10.26.152.0/21 | 10.26.152.1 – 10.26.159.254 | 10.26.159.255 |
| 85 | 10.26.160.0/21 | 10.26.160.1 – 10.26.167.254 | 10.26.167.255 |
| 86 | 10.26.168.0/21 | 10.26.168.1 – 10.26.175.254 | 10.26.175.255 |
| 87 | 10.26.176.0/21 | 10.26.176.1 – 10.26.183.254 | 10.26.183.255 |
| 88 | 10.26.184.0/21 | 10.26.184.1 – 10.26.191.254 | 10.26.191.255 |
| 89 | 10.26.192.0/21 | 10.26.192.1 – 10.26.199.254 | 10.26.199.255 |
| 90 | 10.26.200.0/21 | 10.26.200.1 – 10.26.207.254 | 10.26.207.255 |
| 91 | 10.26.208.0/21 | 10.26.208.1 – 10.26.215.254 | 10.26.215.255 |
| 92 | 10.26.216.0/21 | 10.26.216.1 – 10.26.223.254 | 10.26.223.255 |
| 93 | 10.26.224.0/21 | 10.26.224.1 – 10.26.231.254 | 10.26.231.255 |
| 94 | 10.26.232.0/21 | 10.26.232.1 – 10.26.239.254 | 10.26.239.255 |
| 95 | 10.26.240.0/21 | 10.26.240.1 – 10.26.247.254 | 10.26.247.255 |
| 96 | 10.26.248.0/21 | 10.26.248.1 – 10.26.255.254 | 10.26.255.255 |
| 97 | 10.27.0.0/21 | 10.27.0.1 – 10.27.7.254 | 10.27.7.255 |
| 98 | 10.27.8.0/21 | 10.27.8.1 – 10.27.15.254 | 10.27.15.255 |
| 99 | 10.27.16.0/21 | 10.27.16.1 – 10.27.23.254 | 10.27.23.255 |
| 100 | 10.27.24.0/21 | 10.27.24.1 – 10.27.31.254 | 10.27.31.255 |
| 101 | 10.27.32.0/21 | 10.27.32.1 – 10.27.39.254 | 10.27.39.255 |
| 102 | 10.27.40.0/21 | 10.27.40.1 – 10.27.47.254 | 10.27.47.255 |
| 103 | 10.27.48.0/21 | 10.27.48.1 – 10.27.55.254 | 10.27.55.255 |
| 104 | 10.27.56.0/21 | 10.27.56.1 – 10.27.63.254 | 10.27.63.255 |
| 105 | 10.27.64.0/21 | 10.27.64.1 – 10.27.71.254 | 10.27.71.255 |
| 106 | 10.27.72.0/21 | 10.27.72.1 – 10.27.79.254 | 10.27.79.255 |
| 107 | 10.27.80.0/21 | 10.27.80.1 – 10.27.87.254 | 10.27.87.255 |
| 108 | 10.27.88.0/21 | 10.27.88.1 – 10.27.95.254 | 10.27.95.255 |
| 109 | 10.27.96.0/21 | 10.27.96.1 – 10.27.103.254 | 10.27.103.255 |
| 110 | 10.27.104.0/21 | 10.27.104.1 – 10.27.111.254 | 10.27.111.255 |
| 111 | 10.27.112.0/21 | 10.27.112.1 – 10.27.119.254 | 10.27.119.255 |
| 112 | 10.27.120.0/21 | 10.27.120.1 – 10.27.127.254 | 10.27.127.255 |
| 113 | 10.27.128.0/21 | 10.27.128.1 – 10.27.135.254 | 10.27.135.255 |
| 114 | 10.27.136.0/21 | 10.27.136.1 – 10.27.143.254 | 10.27.143.255 |
| 115 | 10.27.144.0/21 | 10.27.144.1 – 10.27.151.254 | 10.27.151.255 |
| 116 | 10.27.152.0/21 | 10.27.152.1 – 10.27.159.254 | 10.27.159.255 |
| 117 | 10.27.160.0/21 | 10.27.160.1 – 10.27.167.254 | 10.27.167.255 |
| 118 | 10.27.168.0/21 | 10.27.168.1 – 10.27.175.254 | 10.27.175.255 |
| 119 | 10.27.176.0/21 | 10.27.176.1 – 10.27.183.254 | 10.27.183.255 |
| 120 | 10.27.184.0/21 | 10.27.184.1 – 10.27.191.254 | 10.27.191.255 |
| 121 | 10.27.192.0/21 | 10.27.192.1 – 10.27.199.254 | 10.27.199.255 |
| 122 | 10.27.200.0/21 | 10.27.200.1 – 10.27.207.254 | 10.27.207.255 |
| 123 | 10.27.208.0/21 | 10.27.208.1 – 10.27.215.254 | 10.27.215.255 |
| 124 | 10.27.216.0/21 | 10.27.216.1 – 10.27.223.254 | 10.27.223.255 |
| 125 | 10.27.224.0/21 | 10.27.224.1 – 10.27.231.254 | 10.27.231.255 |
| 126 | 10.27.232.0/21 | 10.27.232.1 – 10.27.239.254 | 10.27.239.255 |
| 127 | 10.27.240.0/21 | 10.27.240.1 – 10.27.247.254 | 10.27.247.255 |
| 128 | 10.27.248.0/21 | 10.27.248.1 – 10.27.255.254 | 10.27.255.255 |
| 129 | 10.28.0.0/21 | 10.28.0.1 – 10.28.7.254 | 10.28.7.255 |
| 130 | 10.28.8.0/21 | 10.28.8.1 – 10.28.15.254 | 10.28.15.255 |
| 131 | 10.28.16.0/21 | 10.28.16.1 – 10.28.23.254 | 10.28.23.255 |
| 132 | 10.28.24.0/21 | 10.28.24.1 – 10.28.31.254 | 10.28.31.255 |
| 133 | 10.28.32.0/21 | 10.28.32.1 – 10.28.39.254 | 10.28.39.255 |
| 134 | 10.28.40.0/21 | 10.28.40.1 – 10.28.47.254 | 10.28.47.255 |
| 135 | 10.28.48.0/21 | 10.28.48.1 – 10.28.55.254 | 10.28.55.255 |
| 136 | 10.28.56.0/21 | 10.28.56.1 – 10.28.63.254 | 10.28.63.255 |
| 137 | 10.28.64.0/21 | 10.28.64.1 – 10.28.71.254 | 10.28.71.255 |
| 138 | 10.28.72.0/21 | 10.28.72.1 – 10.28.79.254 | 10.28.79.255 |
| 139 | 10.28.80.0/21 | 10.28.80.1 – 10.28.87.254 | 10.28.87.255 |
| 140 | 10.28.88.0/21 | 10.28.88.1 – 10.28.95.254 | 10.28.95.255 |
| 141 | 10.28.96.0/21 | 10.28.96.1 – 10.28.103.254 | 10.28.103.255 |
| 142 | 10.28.104.0/21 | 10.28.104.1 – 10.28.111.254 | 10.28.111.255 |
| 143 | 10.28.112.0/21 | 10.28.112.1 – 10.28.119.254 | 10.28.119.255 |
| 144 | 10.28.120.0/21 | 10.28.120.1 – 10.28.127.254 | 10.28.127.255 |
| 145 | 10.28.128.0/21 | 10.28.128.1 – 10.28.135.254 | 10.28.135.255 |
| 146 | 10.28.136.0/21 | 10.28.136.1 – 10.28.143.254 | 10.28.143.255 |
| 147 | 10.28.144.0/21 | 10.28.144.1 – 10.28.151.254 | 10.28.151.255 |
| 148 | 10.28.152.0/21 | 10.28.152.1 – 10.28.159.254 | 10.28.159.255 |
| 149 | 10.28.160.0/21 | 10.28.160.1 – 10.28.167.254 | 10.28.167.255 |
| 150 | 10.28.168.0/21 | 10.28.168.1 – 10.28.175.254 | 10.28.175.255 |
| 151 | 10.28.176.0/21 | 10.28.176.1 – 10.28.183.254 | 10.28.183.255 |
| 152 | 10.28.184.0/21 | 10.28.184.1 – 10.28.191.254 | 10.28.191.255 |
| 153 | 10.28.192.0/21 | 10.28.192.1 – 10.28.199.254 | 10.28.199.255 |
| 154 | 10.28.200.0/21 | 10.28.200.1 – 10.28.207.254 | 10.28.207.255 |
| 155 | 10.28.208.0/21 | 10.28.208.1 – 10.28.215.254 | 10.28.215.255 |
| 156 | 10.28.216.0/21 | 10.28.216.1 – 10.28.223.254 | 10.28.223.255 |
| 157 | 10.28.224.0/21 | 10.28.224.1 – 10.28.231.254 | 10.28.231.255 |
| 158 | 10.28.232.0/21 | 10.28.232.1 – 10.28.239.254 | 10.28.239.255 |
| 159 | 10.28.240.0/21 | 10.28.240.1 – 10.28.247.254 | 10.28.247.255 |
| 160 | 10.28.248.0/21 | 10.28.248.1 – 10.28.255.254 | 10.28.255.255 |
| 161 | 10.29.0.0/21 | 10.29.0.1 – 10.29.7.254 | 10.29.7.255 |
| 162 | 10.29.8.0/21 | 10.29.8.1 – 10.29.15.254 | 10.29.15.255 |
| 163 | 10.29.16.0/21 | 10.29.16.1 – 10.29.23.254 | 10.29.23.255 |
| 164 | 10.29.24.0/21 | 10.29.24.1 – 10.29.31.254 | 10.29.31.255 |
| 165 | 10.29.32.0/21 | 10.29.32.1 – 10.29.39.254 | 10.29.39.255 |
| 166 | 10.29.40.0/21 | 10.29.40.1 – 10.29.47.254 | 10.29.47.255 |
| 167 | 10.29.48.0/21 | 10.29.48.1 – 10.29.55.254 | 10.29.55.255 |
| 168 | 10.29.56.0/21 | 10.29.56.1 – 10.29.63.254 | 10.29.63.255 |
| 169 | 10.29.64.0/21 | 10.29.64.1 – 10.29.71.254 | 10.29.71.255 |
| 170 | 10.29.72.0/21 | 10.29.72.1 – 10.29.79.254 | 10.29.79.255 |
| 171 | 10.29.80.0/21 | 10.29.80.1 – 10.29.87.254 | 10.29.87.255 |
| 172 | 10.29.88.0/21 | 10.29.88.1 – 10.29.95.254 | 10.29.95.255 |
| 173 | 10.29.96.0/21 | 10.29.96.1 – 10.29.103.254 | 10.29.103.255 |
| 174 | 10.29.104.0/21 | 10.29.104.1 – 10.29.111.254 | 10.29.111.255 |
| 175 | 10.29.112.0/21 | 10.29.112.1 – 10.29.119.254 | 10.29.119.255 |
| 176 | 10.29.120.0/21 | 10.29.120.1 – 10.29.127.254 | 10.29.127.255 |
| 177 | 10.29.128.0/21 | 10.29.128.1 – 10.29.135.254 | 10.29.135.255 |
| 178 | 10.29.136.0/21 | 10.29.136.1 – 10.29.143.254 | 10.29.143.255 |
| 179 | 10.29.144.0/21 | 10.29.144.1 – 10.29.151.254 | 10.29.151.255 |
| 180 | 10.29.152.0/21 | 10.29.152.1 – 10.29.159.254 | 10.29.159.255 |
| 181 | 10.29.160.0/21 | 10.29.160.1 – 10.29.167.254 | 10.29.167.255 |
| 182 | 10.29.168.0/21 | 10.29.168.1 – 10.29.175.254 | 10.29.175.255 |
| 183 | 10.29.176.0/21 | 10.29.176.1 – 10.29.183.254 | 10.29.183.255 |
| 184 | 10.29.184.0/21 | 10.29.184.1 – 10.29.191.254 | 10.29.191.255 |
| 185 | 10.29.192.0/21 | 10.29.192.1 – 10.29.199.254 | 10.29.199.255 |
| 186 | 10.29.200.0/21 | 10.29.200.1 – 10.29.207.254 | 10.29.207.255 |
| 187 | 10.29.208.0/21 | 10.29.208.1 – 10.29.215.254 | 10.29.215.255 |
| 188 | 10.29.216.0/21 | 10.29.216.1 – 10.29.223.254 | 10.29.223.255 |
| 189 | 10.29.224.0/21 | 10.29.224.1 – 10.29.231.254 | 10.29.231.255 |
| 190 | 10.29.232.0/21 | 10.29.232.1 – 10.29.239.254 | 10.29.239.255 |
| 191 | 10.29.240.0/21 | 10.29.240.1 – 10.29.247.254 | 10.29.247.255 |
| 192 | 10.29.248.0/21 | 10.29.248.1 – 10.29.255.254 | 10.29.255.255 |
| 193 | 10.30.0.0/21 | 10.30.0.1 – 10.30.7.254 | 10.30.7.255 |
| 194 | 10.30.8.0/21 | 10.30.8.1 – 10.30.15.254 | 10.30.15.255 |
| 195 | 10.30.16.0/21 | 10.30.16.1 – 10.30.23.254 | 10.30.23.255 |
| 196 | 10.30.24.0/21 | 10.30.24.1 – 10.30.31.254 | 10.30.31.255 |
| 197 | 10.30.32.0/21 | 10.30.32.1 – 10.30.39.254 | 10.30.39.255 |
| 198 | 10.30.40.0/21 | 10.30.40.1 – 10.30.47.254 | 10.30.47.255 |
| 199 | 10.30.48.0/21 | 10.30.48.1 – 10.30.55.254 | 10.30.55.255 |
| 200 | 10.30.56.0/21 | 10.30.56.1 – 10.30.63.254 | 10.30.63.255 |
| 201 | 10.30.64.0/21 | 10.30.64.1 – 10.30.71.254 | 10.30.71.255 |
| 202 | 10.30.72.0/21 | 10.30.72.1 – 10.30.79.254 | 10.30.79.255 |
| 203 | 10.30.80.0/21 | 10.30.80.1 – 10.30.87.254 | 10.30.87.255 |
| 204 | 10.30.88.0/21 | 10.30.88.1 – 10.30.95.254 | 10.30.95.255 |
| 205 | 10.30.96.0/21 | 10.30.96.1 – 10.30.103.254 | 10.30.103.255 |
| 206 | 10.30.104.0/21 | 10.30.104.1 – 10.30.111.254 | 10.30.111.255 |
| 207 | 10.30.112.0/21 | 10.30.112.1 – 10.30.119.254 | 10.30.119.255 |
| 208 | 10.30.120.0/21 | 10.30.120.1 – 10.30.127.254 | 10.30.127.255 |
| 209 | 10.30.128.0/21 | 10.30.128.1 – 10.30.135.254 | 10.30.135.255 |
| 210 | 10.30.136.0/21 | 10.30.136.1 – 10.30.143.254 | 10.30.143.255 |
| 211 | 10.30.144.0/21 | 10.30.144.1 – 10.30.151.254 | 10.30.151.255 |
| 212 | 10.30.152.0/21 | 10.30.152.1 – 10.30.159.254 | 10.30.159.255 |
| 213 | 10.30.160.0/21 | 10.30.160.1 – 10.30.167.254 | 10.30.167.255 |
| 214 | 10.30.168.0/21 | 10.30.168.1 – 10.30.175.254 | 10.30.175.255 |
| 215 | 10.30.176.0/21 | 10.30.176.1 – 10.30.183.254 | 10.30.183.255 |
| 216 | 10.30.184.0/21 | 10.30.184.1 – 10.30.191.254 | 10.30.191.255 |
| 217 | 10.30.192.0/21 | 10.30.192.1 – 10.30.199.254 | 10.30.199.255 |
| 218 | 10.30.200.0/21 | 10.30.200.1 – 10.30.207.254 | 10.30.207.255 |
| 219 | 10.30.208.0/21 | 10.30.208.1 – 10.30.215.254 | 10.30.215.255 |
| 220 | 10.30.216.0/21 | 10.30.216.1 – 10.30.223.254 | 10.30.223.255 |
| 221 | 10.30.224.0/21 | 10.30.224.1 – 10.30.231.254 | 10.30.231.255 |
| 222 | 10.30.232.0/21 | 10.30.232.1 – 10.30.239.254 | 10.30.239.255 |
| 223 | 10.30.240.0/21 | 10.30.240.1 – 10.30.247.254 | 10.30.247.255 |
| 224 | 10.30.248.0/21 | 10.30.248.1 – 10.30.255.254 | 10.30.255.255 |
| 225 | 10.31.0.0/21 | 10.31.0.1 – 10.31.7.254 | 10.31.7.255 |
| 226 | 10.31.8.0/21 | 10.31.8.1 – 10.31.15.254 | 10.31.15.255 |
| 227 | 10.31.16.0/21 | 10.31.16.1 – 10.31.23.254 | 10.31.23.255 |
| 228 | 10.31.24.0/21 | 10.31.24.1 – 10.31.31.254 | 10.31.31.255 |
| 229 | 10.31.32.0/21 | 10.31.32.1 – 10.31.39.254 | 10.31.39.255 |
| 230 | 10.31.40.0/21 | 10.31.40.1 – 10.31.47.254 | 10.31.47.255 |
| 231 | 10.31.48.0/21 | 10.31.48.1 – 10.31.55.254 | 10.31.55.255 |
| 232 | 10.31.56.0/21 | 10.31.56.1 – 10.31.63.254 | 10.31.63.255 |
| 233 | 10.31.64.0/21 | 10.31.64.1 – 10.31.71.254 | 10.31.71.255 |
| 234 | 10.31.72.0/21 | 10.31.72.1 – 10.31.79.254 | 10.31.79.255 |
| 235 | 10.31.80.0/21 | 10.31.80.1 – 10.31.87.254 | 10.31.87.255 |
| 236 | 10.31.88.0/21 | 10.31.88.1 – 10.31.95.254 | 10.31.95.255 |
| 237 | 10.31.96.0/21 | 10.31.96.1 – 10.31.103.254 | 10.31.103.255 |
| 238 | 10.31.104.0/21 | 10.31.104.1 – 10.31.111.254 | 10.31.111.255 |
| 239 | 10.31.112.0/21 | 10.31.112.1 – 10.31.119.254 | 10.31.119.255 |
| 240 | 10.31.120.0/21 | 10.31.120.1 – 10.31.127.254 | 10.31.127.255 |
| 241 | 10.31.128.0/21 | 10.31.128.1 – 10.31.135.254 | 10.31.135.255 |
| 242 | 10.31.136.0/21 | 10.31.136.1 – 10.31.143.254 | 10.31.143.255 |
| 243 | 10.31.144.0/21 | 10.31.144.1 – 10.31.151.254 | 10.31.151.255 |
| 244 | 10.31.152.0/21 | 10.31.152.1 – 10.31.159.254 | 10.31.159.255 |
| 245 | 10.31.160.0/21 | 10.31.160.1 – 10.31.167.254 | 10.31.167.255 |
| 246 | 10.31.168.0/21 | 10.31.168.1 – 10.31.175.254 | 10.31.175.255 |
| 247 | 10.31.176.0/21 | 10.31.176.1 – 10.31.183.254 | 10.31.183.255 |
| 248 | 10.31.184.0/21 | 10.31.184.1 – 10.31.191.254 | 10.31.191.255 |
| 249 | 10.31.192.0/21 | 10.31.192.1 – 10.31.199.254 | 10.31.199.255 |
| 250 | 10.31.200.0/21 | 10.31.200.1 – 10.31.207.254 | 10.31.207.255 |
| 251 | 10.31.208.0/21 | 10.31.208.1 – 10.31.215.254 | 10.31.215.255 |
| 252 | 10.31.216.0/21 | 10.31.216.1 – 10.31.223.254 | 10.31.223.255 |
| 253 | 10.31.224.0/21 | 10.31.224.1 – 10.31.231.254 | 10.31.231.255 |
| 254 | 10.31.232.0/21 | 10.31.232.1 – 10.31.239.254 | 10.31.239.255 |
| 255 | 10.31.240.0/21 | 10.31.240.1 – 10.31.247.254 | 10.31.247.255 |
| 256 | 10.31.248.0/21 | 10.31.248.1 – 10.31.255.254 | 10.31.255.255 |
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 /13 |
|---|---|---|---|---|
| /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 | 1 |
| /14 | 255.252.0.0 | 262,144 | 262,142 | 2 split → |
| /15 | 255.254.0.0 | 131,072 | 131,070 | 4 split → |
| /16 | 255.255.0.0 | 65,536 | 65,534 | 8 split → |
| /17 | 255.255.128.0 | 32,768 | 32,766 | 16 split → |
| /18 | 255.255.192.0 | 16,384 | 16,382 | 32 split → |
| /19 | 255.255.224.0 | 8,192 | 8,190 | 64 split → |
| /20 | 255.255.240.0 | 4,096 | 4,094 | 128 split → |
| /21 | 255.255.248.0 | 2,048 | 2,046 | 256 split → |
| /22 | 255.255.252.0 | 1,024 | 1,022 | 512 split → |
| /23 | 255.255.254.0 | 512 | 510 | 1,024 split → |
| /24 | 255.255.255.0 | 256 | 254 | 2,048 split → |
| /25 | 255.255.255.128 | 128 | 126 | 4,096 split → |
| /26 | 255.255.255.192 | 64 | 62 | 8,192 split → |
| /27 | 255.255.255.224 | 32 | 30 | 16,384 split → |
| /28 | 255.255.255.240 | 16 | 14 | 32,768 split → |
| /29 | 255.255.255.248 | 8 | 6 | 65,536 split → |
| /30 | 255.255.255.252 | 4 | 2 | 131,072 split → |
| /31 | 255.255.255.254 | 2 | 2 | 262,144 split → |
| /32 | 255.255.255.255 | 1 | 1 | 524,288 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.