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)10.144.0.0/13
network10.144.0.0/13
broadcast10.151.255.255
first host10.144.0.1
last host10.151.255.254
subnet mask255.248.0.0
wildcard0.7.255.255
addresses524,288
usable hosts524,286
classA
ipcalc 10.144.0.0/13
address00001010.10010000.00000000.00000000
subnet mask11111111.11111000.00000000.00000000
network00001010.10010000.00000000.00000000
broadcast00001010.10010111.11111111.11111111
green = network part, grey = host part
hex0x0a900000
decimal177209344
reverse dns0.0.144.10.in-addr.arpa
ipv4-mapped::ffff:a90:0
/13 split into /21 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.144.0.0/21 | 10.144.0.1 – 10.144.7.254 | 10.144.7.255 |
| 2 | 10.144.8.0/21 | 10.144.8.1 – 10.144.15.254 | 10.144.15.255 |
| 3 | 10.144.16.0/21 | 10.144.16.1 – 10.144.23.254 | 10.144.23.255 |
| 4 | 10.144.24.0/21 | 10.144.24.1 – 10.144.31.254 | 10.144.31.255 |
| 5 | 10.144.32.0/21 | 10.144.32.1 – 10.144.39.254 | 10.144.39.255 |
| 6 | 10.144.40.0/21 | 10.144.40.1 – 10.144.47.254 | 10.144.47.255 |
| 7 | 10.144.48.0/21 | 10.144.48.1 – 10.144.55.254 | 10.144.55.255 |
| 8 | 10.144.56.0/21 | 10.144.56.1 – 10.144.63.254 | 10.144.63.255 |
| 9 | 10.144.64.0/21 | 10.144.64.1 – 10.144.71.254 | 10.144.71.255 |
| 10 | 10.144.72.0/21 | 10.144.72.1 – 10.144.79.254 | 10.144.79.255 |
| 11 | 10.144.80.0/21 | 10.144.80.1 – 10.144.87.254 | 10.144.87.255 |
| 12 | 10.144.88.0/21 | 10.144.88.1 – 10.144.95.254 | 10.144.95.255 |
| 13 | 10.144.96.0/21 | 10.144.96.1 – 10.144.103.254 | 10.144.103.255 |
| 14 | 10.144.104.0/21 | 10.144.104.1 – 10.144.111.254 | 10.144.111.255 |
| 15 | 10.144.112.0/21 | 10.144.112.1 – 10.144.119.254 | 10.144.119.255 |
| 16 | 10.144.120.0/21 | 10.144.120.1 – 10.144.127.254 | 10.144.127.255 |
| 17 | 10.144.128.0/21 | 10.144.128.1 – 10.144.135.254 | 10.144.135.255 |
| 18 | 10.144.136.0/21 | 10.144.136.1 – 10.144.143.254 | 10.144.143.255 |
| 19 | 10.144.144.0/21 | 10.144.144.1 – 10.144.151.254 | 10.144.151.255 |
| 20 | 10.144.152.0/21 | 10.144.152.1 – 10.144.159.254 | 10.144.159.255 |
| 21 | 10.144.160.0/21 | 10.144.160.1 – 10.144.167.254 | 10.144.167.255 |
| 22 | 10.144.168.0/21 | 10.144.168.1 – 10.144.175.254 | 10.144.175.255 |
| 23 | 10.144.176.0/21 | 10.144.176.1 – 10.144.183.254 | 10.144.183.255 |
| 24 | 10.144.184.0/21 | 10.144.184.1 – 10.144.191.254 | 10.144.191.255 |
| 25 | 10.144.192.0/21 | 10.144.192.1 – 10.144.199.254 | 10.144.199.255 |
| 26 | 10.144.200.0/21 | 10.144.200.1 – 10.144.207.254 | 10.144.207.255 |
| 27 | 10.144.208.0/21 | 10.144.208.1 – 10.144.215.254 | 10.144.215.255 |
| 28 | 10.144.216.0/21 | 10.144.216.1 – 10.144.223.254 | 10.144.223.255 |
| 29 | 10.144.224.0/21 | 10.144.224.1 – 10.144.231.254 | 10.144.231.255 |
| 30 | 10.144.232.0/21 | 10.144.232.1 – 10.144.239.254 | 10.144.239.255 |
| 31 | 10.144.240.0/21 | 10.144.240.1 – 10.144.247.254 | 10.144.247.255 |
| 32 | 10.144.248.0/21 | 10.144.248.1 – 10.144.255.254 | 10.144.255.255 |
| 33 | 10.145.0.0/21 | 10.145.0.1 – 10.145.7.254 | 10.145.7.255 |
| 34 | 10.145.8.0/21 | 10.145.8.1 – 10.145.15.254 | 10.145.15.255 |
| 35 | 10.145.16.0/21 | 10.145.16.1 – 10.145.23.254 | 10.145.23.255 |
| 36 | 10.145.24.0/21 | 10.145.24.1 – 10.145.31.254 | 10.145.31.255 |
| 37 | 10.145.32.0/21 | 10.145.32.1 – 10.145.39.254 | 10.145.39.255 |
| 38 | 10.145.40.0/21 | 10.145.40.1 – 10.145.47.254 | 10.145.47.255 |
| 39 | 10.145.48.0/21 | 10.145.48.1 – 10.145.55.254 | 10.145.55.255 |
| 40 | 10.145.56.0/21 | 10.145.56.1 – 10.145.63.254 | 10.145.63.255 |
| 41 | 10.145.64.0/21 | 10.145.64.1 – 10.145.71.254 | 10.145.71.255 |
| 42 | 10.145.72.0/21 | 10.145.72.1 – 10.145.79.254 | 10.145.79.255 |
| 43 | 10.145.80.0/21 | 10.145.80.1 – 10.145.87.254 | 10.145.87.255 |
| 44 | 10.145.88.0/21 | 10.145.88.1 – 10.145.95.254 | 10.145.95.255 |
| 45 | 10.145.96.0/21 | 10.145.96.1 – 10.145.103.254 | 10.145.103.255 |
| 46 | 10.145.104.0/21 | 10.145.104.1 – 10.145.111.254 | 10.145.111.255 |
| 47 | 10.145.112.0/21 | 10.145.112.1 – 10.145.119.254 | 10.145.119.255 |
| 48 | 10.145.120.0/21 | 10.145.120.1 – 10.145.127.254 | 10.145.127.255 |
| 49 | 10.145.128.0/21 | 10.145.128.1 – 10.145.135.254 | 10.145.135.255 |
| 50 | 10.145.136.0/21 | 10.145.136.1 – 10.145.143.254 | 10.145.143.255 |
| 51 | 10.145.144.0/21 | 10.145.144.1 – 10.145.151.254 | 10.145.151.255 |
| 52 | 10.145.152.0/21 | 10.145.152.1 – 10.145.159.254 | 10.145.159.255 |
| 53 | 10.145.160.0/21 | 10.145.160.1 – 10.145.167.254 | 10.145.167.255 |
| 54 | 10.145.168.0/21 | 10.145.168.1 – 10.145.175.254 | 10.145.175.255 |
| 55 | 10.145.176.0/21 | 10.145.176.1 – 10.145.183.254 | 10.145.183.255 |
| 56 | 10.145.184.0/21 | 10.145.184.1 – 10.145.191.254 | 10.145.191.255 |
| 57 | 10.145.192.0/21 | 10.145.192.1 – 10.145.199.254 | 10.145.199.255 |
| 58 | 10.145.200.0/21 | 10.145.200.1 – 10.145.207.254 | 10.145.207.255 |
| 59 | 10.145.208.0/21 | 10.145.208.1 – 10.145.215.254 | 10.145.215.255 |
| 60 | 10.145.216.0/21 | 10.145.216.1 – 10.145.223.254 | 10.145.223.255 |
| 61 | 10.145.224.0/21 | 10.145.224.1 – 10.145.231.254 | 10.145.231.255 |
| 62 | 10.145.232.0/21 | 10.145.232.1 – 10.145.239.254 | 10.145.239.255 |
| 63 | 10.145.240.0/21 | 10.145.240.1 – 10.145.247.254 | 10.145.247.255 |
| 64 | 10.145.248.0/21 | 10.145.248.1 – 10.145.255.254 | 10.145.255.255 |
| 65 | 10.146.0.0/21 | 10.146.0.1 – 10.146.7.254 | 10.146.7.255 |
| 66 | 10.146.8.0/21 | 10.146.8.1 – 10.146.15.254 | 10.146.15.255 |
| 67 | 10.146.16.0/21 | 10.146.16.1 – 10.146.23.254 | 10.146.23.255 |
| 68 | 10.146.24.0/21 | 10.146.24.1 – 10.146.31.254 | 10.146.31.255 |
| 69 | 10.146.32.0/21 | 10.146.32.1 – 10.146.39.254 | 10.146.39.255 |
| 70 | 10.146.40.0/21 | 10.146.40.1 – 10.146.47.254 | 10.146.47.255 |
| 71 | 10.146.48.0/21 | 10.146.48.1 – 10.146.55.254 | 10.146.55.255 |
| 72 | 10.146.56.0/21 | 10.146.56.1 – 10.146.63.254 | 10.146.63.255 |
| 73 | 10.146.64.0/21 | 10.146.64.1 – 10.146.71.254 | 10.146.71.255 |
| 74 | 10.146.72.0/21 | 10.146.72.1 – 10.146.79.254 | 10.146.79.255 |
| 75 | 10.146.80.0/21 | 10.146.80.1 – 10.146.87.254 | 10.146.87.255 |
| 76 | 10.146.88.0/21 | 10.146.88.1 – 10.146.95.254 | 10.146.95.255 |
| 77 | 10.146.96.0/21 | 10.146.96.1 – 10.146.103.254 | 10.146.103.255 |
| 78 | 10.146.104.0/21 | 10.146.104.1 – 10.146.111.254 | 10.146.111.255 |
| 79 | 10.146.112.0/21 | 10.146.112.1 – 10.146.119.254 | 10.146.119.255 |
| 80 | 10.146.120.0/21 | 10.146.120.1 – 10.146.127.254 | 10.146.127.255 |
| 81 | 10.146.128.0/21 | 10.146.128.1 – 10.146.135.254 | 10.146.135.255 |
| 82 | 10.146.136.0/21 | 10.146.136.1 – 10.146.143.254 | 10.146.143.255 |
| 83 | 10.146.144.0/21 | 10.146.144.1 – 10.146.151.254 | 10.146.151.255 |
| 84 | 10.146.152.0/21 | 10.146.152.1 – 10.146.159.254 | 10.146.159.255 |
| 85 | 10.146.160.0/21 | 10.146.160.1 – 10.146.167.254 | 10.146.167.255 |
| 86 | 10.146.168.0/21 | 10.146.168.1 – 10.146.175.254 | 10.146.175.255 |
| 87 | 10.146.176.0/21 | 10.146.176.1 – 10.146.183.254 | 10.146.183.255 |
| 88 | 10.146.184.0/21 | 10.146.184.1 – 10.146.191.254 | 10.146.191.255 |
| 89 | 10.146.192.0/21 | 10.146.192.1 – 10.146.199.254 | 10.146.199.255 |
| 90 | 10.146.200.0/21 | 10.146.200.1 – 10.146.207.254 | 10.146.207.255 |
| 91 | 10.146.208.0/21 | 10.146.208.1 – 10.146.215.254 | 10.146.215.255 |
| 92 | 10.146.216.0/21 | 10.146.216.1 – 10.146.223.254 | 10.146.223.255 |
| 93 | 10.146.224.0/21 | 10.146.224.1 – 10.146.231.254 | 10.146.231.255 |
| 94 | 10.146.232.0/21 | 10.146.232.1 – 10.146.239.254 | 10.146.239.255 |
| 95 | 10.146.240.0/21 | 10.146.240.1 – 10.146.247.254 | 10.146.247.255 |
| 96 | 10.146.248.0/21 | 10.146.248.1 – 10.146.255.254 | 10.146.255.255 |
| 97 | 10.147.0.0/21 | 10.147.0.1 – 10.147.7.254 | 10.147.7.255 |
| 98 | 10.147.8.0/21 | 10.147.8.1 – 10.147.15.254 | 10.147.15.255 |
| 99 | 10.147.16.0/21 | 10.147.16.1 – 10.147.23.254 | 10.147.23.255 |
| 100 | 10.147.24.0/21 | 10.147.24.1 – 10.147.31.254 | 10.147.31.255 |
| 101 | 10.147.32.0/21 | 10.147.32.1 – 10.147.39.254 | 10.147.39.255 |
| 102 | 10.147.40.0/21 | 10.147.40.1 – 10.147.47.254 | 10.147.47.255 |
| 103 | 10.147.48.0/21 | 10.147.48.1 – 10.147.55.254 | 10.147.55.255 |
| 104 | 10.147.56.0/21 | 10.147.56.1 – 10.147.63.254 | 10.147.63.255 |
| 105 | 10.147.64.0/21 | 10.147.64.1 – 10.147.71.254 | 10.147.71.255 |
| 106 | 10.147.72.0/21 | 10.147.72.1 – 10.147.79.254 | 10.147.79.255 |
| 107 | 10.147.80.0/21 | 10.147.80.1 – 10.147.87.254 | 10.147.87.255 |
| 108 | 10.147.88.0/21 | 10.147.88.1 – 10.147.95.254 | 10.147.95.255 |
| 109 | 10.147.96.0/21 | 10.147.96.1 – 10.147.103.254 | 10.147.103.255 |
| 110 | 10.147.104.0/21 | 10.147.104.1 – 10.147.111.254 | 10.147.111.255 |
| 111 | 10.147.112.0/21 | 10.147.112.1 – 10.147.119.254 | 10.147.119.255 |
| 112 | 10.147.120.0/21 | 10.147.120.1 – 10.147.127.254 | 10.147.127.255 |
| 113 | 10.147.128.0/21 | 10.147.128.1 – 10.147.135.254 | 10.147.135.255 |
| 114 | 10.147.136.0/21 | 10.147.136.1 – 10.147.143.254 | 10.147.143.255 |
| 115 | 10.147.144.0/21 | 10.147.144.1 – 10.147.151.254 | 10.147.151.255 |
| 116 | 10.147.152.0/21 | 10.147.152.1 – 10.147.159.254 | 10.147.159.255 |
| 117 | 10.147.160.0/21 | 10.147.160.1 – 10.147.167.254 | 10.147.167.255 |
| 118 | 10.147.168.0/21 | 10.147.168.1 – 10.147.175.254 | 10.147.175.255 |
| 119 | 10.147.176.0/21 | 10.147.176.1 – 10.147.183.254 | 10.147.183.255 |
| 120 | 10.147.184.0/21 | 10.147.184.1 – 10.147.191.254 | 10.147.191.255 |
| 121 | 10.147.192.0/21 | 10.147.192.1 – 10.147.199.254 | 10.147.199.255 |
| 122 | 10.147.200.0/21 | 10.147.200.1 – 10.147.207.254 | 10.147.207.255 |
| 123 | 10.147.208.0/21 | 10.147.208.1 – 10.147.215.254 | 10.147.215.255 |
| 124 | 10.147.216.0/21 | 10.147.216.1 – 10.147.223.254 | 10.147.223.255 |
| 125 | 10.147.224.0/21 | 10.147.224.1 – 10.147.231.254 | 10.147.231.255 |
| 126 | 10.147.232.0/21 | 10.147.232.1 – 10.147.239.254 | 10.147.239.255 |
| 127 | 10.147.240.0/21 | 10.147.240.1 – 10.147.247.254 | 10.147.247.255 |
| 128 | 10.147.248.0/21 | 10.147.248.1 – 10.147.255.254 | 10.147.255.255 |
| 129 | 10.148.0.0/21 | 10.148.0.1 – 10.148.7.254 | 10.148.7.255 |
| 130 | 10.148.8.0/21 | 10.148.8.1 – 10.148.15.254 | 10.148.15.255 |
| 131 | 10.148.16.0/21 | 10.148.16.1 – 10.148.23.254 | 10.148.23.255 |
| 132 | 10.148.24.0/21 | 10.148.24.1 – 10.148.31.254 | 10.148.31.255 |
| 133 | 10.148.32.0/21 | 10.148.32.1 – 10.148.39.254 | 10.148.39.255 |
| 134 | 10.148.40.0/21 | 10.148.40.1 – 10.148.47.254 | 10.148.47.255 |
| 135 | 10.148.48.0/21 | 10.148.48.1 – 10.148.55.254 | 10.148.55.255 |
| 136 | 10.148.56.0/21 | 10.148.56.1 – 10.148.63.254 | 10.148.63.255 |
| 137 | 10.148.64.0/21 | 10.148.64.1 – 10.148.71.254 | 10.148.71.255 |
| 138 | 10.148.72.0/21 | 10.148.72.1 – 10.148.79.254 | 10.148.79.255 |
| 139 | 10.148.80.0/21 | 10.148.80.1 – 10.148.87.254 | 10.148.87.255 |
| 140 | 10.148.88.0/21 | 10.148.88.1 – 10.148.95.254 | 10.148.95.255 |
| 141 | 10.148.96.0/21 | 10.148.96.1 – 10.148.103.254 | 10.148.103.255 |
| 142 | 10.148.104.0/21 | 10.148.104.1 – 10.148.111.254 | 10.148.111.255 |
| 143 | 10.148.112.0/21 | 10.148.112.1 – 10.148.119.254 | 10.148.119.255 |
| 144 | 10.148.120.0/21 | 10.148.120.1 – 10.148.127.254 | 10.148.127.255 |
| 145 | 10.148.128.0/21 | 10.148.128.1 – 10.148.135.254 | 10.148.135.255 |
| 146 | 10.148.136.0/21 | 10.148.136.1 – 10.148.143.254 | 10.148.143.255 |
| 147 | 10.148.144.0/21 | 10.148.144.1 – 10.148.151.254 | 10.148.151.255 |
| 148 | 10.148.152.0/21 | 10.148.152.1 – 10.148.159.254 | 10.148.159.255 |
| 149 | 10.148.160.0/21 | 10.148.160.1 – 10.148.167.254 | 10.148.167.255 |
| 150 | 10.148.168.0/21 | 10.148.168.1 – 10.148.175.254 | 10.148.175.255 |
| 151 | 10.148.176.0/21 | 10.148.176.1 – 10.148.183.254 | 10.148.183.255 |
| 152 | 10.148.184.0/21 | 10.148.184.1 – 10.148.191.254 | 10.148.191.255 |
| 153 | 10.148.192.0/21 | 10.148.192.1 – 10.148.199.254 | 10.148.199.255 |
| 154 | 10.148.200.0/21 | 10.148.200.1 – 10.148.207.254 | 10.148.207.255 |
| 155 | 10.148.208.0/21 | 10.148.208.1 – 10.148.215.254 | 10.148.215.255 |
| 156 | 10.148.216.0/21 | 10.148.216.1 – 10.148.223.254 | 10.148.223.255 |
| 157 | 10.148.224.0/21 | 10.148.224.1 – 10.148.231.254 | 10.148.231.255 |
| 158 | 10.148.232.0/21 | 10.148.232.1 – 10.148.239.254 | 10.148.239.255 |
| 159 | 10.148.240.0/21 | 10.148.240.1 – 10.148.247.254 | 10.148.247.255 |
| 160 | 10.148.248.0/21 | 10.148.248.1 – 10.148.255.254 | 10.148.255.255 |
| 161 | 10.149.0.0/21 | 10.149.0.1 – 10.149.7.254 | 10.149.7.255 |
| 162 | 10.149.8.0/21 | 10.149.8.1 – 10.149.15.254 | 10.149.15.255 |
| 163 | 10.149.16.0/21 | 10.149.16.1 – 10.149.23.254 | 10.149.23.255 |
| 164 | 10.149.24.0/21 | 10.149.24.1 – 10.149.31.254 | 10.149.31.255 |
| 165 | 10.149.32.0/21 | 10.149.32.1 – 10.149.39.254 | 10.149.39.255 |
| 166 | 10.149.40.0/21 | 10.149.40.1 – 10.149.47.254 | 10.149.47.255 |
| 167 | 10.149.48.0/21 | 10.149.48.1 – 10.149.55.254 | 10.149.55.255 |
| 168 | 10.149.56.0/21 | 10.149.56.1 – 10.149.63.254 | 10.149.63.255 |
| 169 | 10.149.64.0/21 | 10.149.64.1 – 10.149.71.254 | 10.149.71.255 |
| 170 | 10.149.72.0/21 | 10.149.72.1 – 10.149.79.254 | 10.149.79.255 |
| 171 | 10.149.80.0/21 | 10.149.80.1 – 10.149.87.254 | 10.149.87.255 |
| 172 | 10.149.88.0/21 | 10.149.88.1 – 10.149.95.254 | 10.149.95.255 |
| 173 | 10.149.96.0/21 | 10.149.96.1 – 10.149.103.254 | 10.149.103.255 |
| 174 | 10.149.104.0/21 | 10.149.104.1 – 10.149.111.254 | 10.149.111.255 |
| 175 | 10.149.112.0/21 | 10.149.112.1 – 10.149.119.254 | 10.149.119.255 |
| 176 | 10.149.120.0/21 | 10.149.120.1 – 10.149.127.254 | 10.149.127.255 |
| 177 | 10.149.128.0/21 | 10.149.128.1 – 10.149.135.254 | 10.149.135.255 |
| 178 | 10.149.136.0/21 | 10.149.136.1 – 10.149.143.254 | 10.149.143.255 |
| 179 | 10.149.144.0/21 | 10.149.144.1 – 10.149.151.254 | 10.149.151.255 |
| 180 | 10.149.152.0/21 | 10.149.152.1 – 10.149.159.254 | 10.149.159.255 |
| 181 | 10.149.160.0/21 | 10.149.160.1 – 10.149.167.254 | 10.149.167.255 |
| 182 | 10.149.168.0/21 | 10.149.168.1 – 10.149.175.254 | 10.149.175.255 |
| 183 | 10.149.176.0/21 | 10.149.176.1 – 10.149.183.254 | 10.149.183.255 |
| 184 | 10.149.184.0/21 | 10.149.184.1 – 10.149.191.254 | 10.149.191.255 |
| 185 | 10.149.192.0/21 | 10.149.192.1 – 10.149.199.254 | 10.149.199.255 |
| 186 | 10.149.200.0/21 | 10.149.200.1 – 10.149.207.254 | 10.149.207.255 |
| 187 | 10.149.208.0/21 | 10.149.208.1 – 10.149.215.254 | 10.149.215.255 |
| 188 | 10.149.216.0/21 | 10.149.216.1 – 10.149.223.254 | 10.149.223.255 |
| 189 | 10.149.224.0/21 | 10.149.224.1 – 10.149.231.254 | 10.149.231.255 |
| 190 | 10.149.232.0/21 | 10.149.232.1 – 10.149.239.254 | 10.149.239.255 |
| 191 | 10.149.240.0/21 | 10.149.240.1 – 10.149.247.254 | 10.149.247.255 |
| 192 | 10.149.248.0/21 | 10.149.248.1 – 10.149.255.254 | 10.149.255.255 |
| 193 | 10.150.0.0/21 | 10.150.0.1 – 10.150.7.254 | 10.150.7.255 |
| 194 | 10.150.8.0/21 | 10.150.8.1 – 10.150.15.254 | 10.150.15.255 |
| 195 | 10.150.16.0/21 | 10.150.16.1 – 10.150.23.254 | 10.150.23.255 |
| 196 | 10.150.24.0/21 | 10.150.24.1 – 10.150.31.254 | 10.150.31.255 |
| 197 | 10.150.32.0/21 | 10.150.32.1 – 10.150.39.254 | 10.150.39.255 |
| 198 | 10.150.40.0/21 | 10.150.40.1 – 10.150.47.254 | 10.150.47.255 |
| 199 | 10.150.48.0/21 | 10.150.48.1 – 10.150.55.254 | 10.150.55.255 |
| 200 | 10.150.56.0/21 | 10.150.56.1 – 10.150.63.254 | 10.150.63.255 |
| 201 | 10.150.64.0/21 | 10.150.64.1 – 10.150.71.254 | 10.150.71.255 |
| 202 | 10.150.72.0/21 | 10.150.72.1 – 10.150.79.254 | 10.150.79.255 |
| 203 | 10.150.80.0/21 | 10.150.80.1 – 10.150.87.254 | 10.150.87.255 |
| 204 | 10.150.88.0/21 | 10.150.88.1 – 10.150.95.254 | 10.150.95.255 |
| 205 | 10.150.96.0/21 | 10.150.96.1 – 10.150.103.254 | 10.150.103.255 |
| 206 | 10.150.104.0/21 | 10.150.104.1 – 10.150.111.254 | 10.150.111.255 |
| 207 | 10.150.112.0/21 | 10.150.112.1 – 10.150.119.254 | 10.150.119.255 |
| 208 | 10.150.120.0/21 | 10.150.120.1 – 10.150.127.254 | 10.150.127.255 |
| 209 | 10.150.128.0/21 | 10.150.128.1 – 10.150.135.254 | 10.150.135.255 |
| 210 | 10.150.136.0/21 | 10.150.136.1 – 10.150.143.254 | 10.150.143.255 |
| 211 | 10.150.144.0/21 | 10.150.144.1 – 10.150.151.254 | 10.150.151.255 |
| 212 | 10.150.152.0/21 | 10.150.152.1 – 10.150.159.254 | 10.150.159.255 |
| 213 | 10.150.160.0/21 | 10.150.160.1 – 10.150.167.254 | 10.150.167.255 |
| 214 | 10.150.168.0/21 | 10.150.168.1 – 10.150.175.254 | 10.150.175.255 |
| 215 | 10.150.176.0/21 | 10.150.176.1 – 10.150.183.254 | 10.150.183.255 |
| 216 | 10.150.184.0/21 | 10.150.184.1 – 10.150.191.254 | 10.150.191.255 |
| 217 | 10.150.192.0/21 | 10.150.192.1 – 10.150.199.254 | 10.150.199.255 |
| 218 | 10.150.200.0/21 | 10.150.200.1 – 10.150.207.254 | 10.150.207.255 |
| 219 | 10.150.208.0/21 | 10.150.208.1 – 10.150.215.254 | 10.150.215.255 |
| 220 | 10.150.216.0/21 | 10.150.216.1 – 10.150.223.254 | 10.150.223.255 |
| 221 | 10.150.224.0/21 | 10.150.224.1 – 10.150.231.254 | 10.150.231.255 |
| 222 | 10.150.232.0/21 | 10.150.232.1 – 10.150.239.254 | 10.150.239.255 |
| 223 | 10.150.240.0/21 | 10.150.240.1 – 10.150.247.254 | 10.150.247.255 |
| 224 | 10.150.248.0/21 | 10.150.248.1 – 10.150.255.254 | 10.150.255.255 |
| 225 | 10.151.0.0/21 | 10.151.0.1 – 10.151.7.254 | 10.151.7.255 |
| 226 | 10.151.8.0/21 | 10.151.8.1 – 10.151.15.254 | 10.151.15.255 |
| 227 | 10.151.16.0/21 | 10.151.16.1 – 10.151.23.254 | 10.151.23.255 |
| 228 | 10.151.24.0/21 | 10.151.24.1 – 10.151.31.254 | 10.151.31.255 |
| 229 | 10.151.32.0/21 | 10.151.32.1 – 10.151.39.254 | 10.151.39.255 |
| 230 | 10.151.40.0/21 | 10.151.40.1 – 10.151.47.254 | 10.151.47.255 |
| 231 | 10.151.48.0/21 | 10.151.48.1 – 10.151.55.254 | 10.151.55.255 |
| 232 | 10.151.56.0/21 | 10.151.56.1 – 10.151.63.254 | 10.151.63.255 |
| 233 | 10.151.64.0/21 | 10.151.64.1 – 10.151.71.254 | 10.151.71.255 |
| 234 | 10.151.72.0/21 | 10.151.72.1 – 10.151.79.254 | 10.151.79.255 |
| 235 | 10.151.80.0/21 | 10.151.80.1 – 10.151.87.254 | 10.151.87.255 |
| 236 | 10.151.88.0/21 | 10.151.88.1 – 10.151.95.254 | 10.151.95.255 |
| 237 | 10.151.96.0/21 | 10.151.96.1 – 10.151.103.254 | 10.151.103.255 |
| 238 | 10.151.104.0/21 | 10.151.104.1 – 10.151.111.254 | 10.151.111.255 |
| 239 | 10.151.112.0/21 | 10.151.112.1 – 10.151.119.254 | 10.151.119.255 |
| 240 | 10.151.120.0/21 | 10.151.120.1 – 10.151.127.254 | 10.151.127.255 |
| 241 | 10.151.128.0/21 | 10.151.128.1 – 10.151.135.254 | 10.151.135.255 |
| 242 | 10.151.136.0/21 | 10.151.136.1 – 10.151.143.254 | 10.151.143.255 |
| 243 | 10.151.144.0/21 | 10.151.144.1 – 10.151.151.254 | 10.151.151.255 |
| 244 | 10.151.152.0/21 | 10.151.152.1 – 10.151.159.254 | 10.151.159.255 |
| 245 | 10.151.160.0/21 | 10.151.160.1 – 10.151.167.254 | 10.151.167.255 |
| 246 | 10.151.168.0/21 | 10.151.168.1 – 10.151.175.254 | 10.151.175.255 |
| 247 | 10.151.176.0/21 | 10.151.176.1 – 10.151.183.254 | 10.151.183.255 |
| 248 | 10.151.184.0/21 | 10.151.184.1 – 10.151.191.254 | 10.151.191.255 |
| 249 | 10.151.192.0/21 | 10.151.192.1 – 10.151.199.254 | 10.151.199.255 |
| 250 | 10.151.200.0/21 | 10.151.200.1 – 10.151.207.254 | 10.151.207.255 |
| 251 | 10.151.208.0/21 | 10.151.208.1 – 10.151.215.254 | 10.151.215.255 |
| 252 | 10.151.216.0/21 | 10.151.216.1 – 10.151.223.254 | 10.151.223.255 |
| 253 | 10.151.224.0/21 | 10.151.224.1 – 10.151.231.254 | 10.151.231.255 |
| 254 | 10.151.232.0/21 | 10.151.232.1 – 10.151.239.254 | 10.151.239.255 |
| 255 | 10.151.240.0/21 | 10.151.240.1 – 10.151.247.254 | 10.151.247.255 |
| 256 | 10.151.248.0/21 | 10.151.248.1 – 10.151.255.254 | 10.151.255.255 |
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.