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)10.112.0.0/12
network10.112.0.0/12
broadcast10.127.255.255
first host10.112.0.1
last host10.127.255.254
subnet mask255.240.0.0
wildcard0.15.255.255
addresses1,048,576
usable hosts1,048,574
classA
ipcalc 10.112.0.0/12
address00001010.01110000.00000000.00000000
subnet mask11111111.11110000.00000000.00000000
network00001010.01110000.00000000.00000000
broadcast00001010.01111111.11111111.11111111
green = network part, grey = host part
hex0x0a700000
decimal175112192
reverse dns0.0.112.10.in-addr.arpa
ipv4-mapped::ffff:a70:0
/12 split into /20 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.112.0.0/20 | 10.112.0.1 – 10.112.15.254 | 10.112.15.255 |
| 2 | 10.112.16.0/20 | 10.112.16.1 – 10.112.31.254 | 10.112.31.255 |
| 3 | 10.112.32.0/20 | 10.112.32.1 – 10.112.47.254 | 10.112.47.255 |
| 4 | 10.112.48.0/20 | 10.112.48.1 – 10.112.63.254 | 10.112.63.255 |
| 5 | 10.112.64.0/20 | 10.112.64.1 – 10.112.79.254 | 10.112.79.255 |
| 6 | 10.112.80.0/20 | 10.112.80.1 – 10.112.95.254 | 10.112.95.255 |
| 7 | 10.112.96.0/20 | 10.112.96.1 – 10.112.111.254 | 10.112.111.255 |
| 8 | 10.112.112.0/20 | 10.112.112.1 – 10.112.127.254 | 10.112.127.255 |
| 9 | 10.112.128.0/20 | 10.112.128.1 – 10.112.143.254 | 10.112.143.255 |
| 10 | 10.112.144.0/20 | 10.112.144.1 – 10.112.159.254 | 10.112.159.255 |
| 11 | 10.112.160.0/20 | 10.112.160.1 – 10.112.175.254 | 10.112.175.255 |
| 12 | 10.112.176.0/20 | 10.112.176.1 – 10.112.191.254 | 10.112.191.255 |
| 13 | 10.112.192.0/20 | 10.112.192.1 – 10.112.207.254 | 10.112.207.255 |
| 14 | 10.112.208.0/20 | 10.112.208.1 – 10.112.223.254 | 10.112.223.255 |
| 15 | 10.112.224.0/20 | 10.112.224.1 – 10.112.239.254 | 10.112.239.255 |
| 16 | 10.112.240.0/20 | 10.112.240.1 – 10.112.255.254 | 10.112.255.255 |
| 17 | 10.113.0.0/20 | 10.113.0.1 – 10.113.15.254 | 10.113.15.255 |
| 18 | 10.113.16.0/20 | 10.113.16.1 – 10.113.31.254 | 10.113.31.255 |
| 19 | 10.113.32.0/20 | 10.113.32.1 – 10.113.47.254 | 10.113.47.255 |
| 20 | 10.113.48.0/20 | 10.113.48.1 – 10.113.63.254 | 10.113.63.255 |
| 21 | 10.113.64.0/20 | 10.113.64.1 – 10.113.79.254 | 10.113.79.255 |
| 22 | 10.113.80.0/20 | 10.113.80.1 – 10.113.95.254 | 10.113.95.255 |
| 23 | 10.113.96.0/20 | 10.113.96.1 – 10.113.111.254 | 10.113.111.255 |
| 24 | 10.113.112.0/20 | 10.113.112.1 – 10.113.127.254 | 10.113.127.255 |
| 25 | 10.113.128.0/20 | 10.113.128.1 – 10.113.143.254 | 10.113.143.255 |
| 26 | 10.113.144.0/20 | 10.113.144.1 – 10.113.159.254 | 10.113.159.255 |
| 27 | 10.113.160.0/20 | 10.113.160.1 – 10.113.175.254 | 10.113.175.255 |
| 28 | 10.113.176.0/20 | 10.113.176.1 – 10.113.191.254 | 10.113.191.255 |
| 29 | 10.113.192.0/20 | 10.113.192.1 – 10.113.207.254 | 10.113.207.255 |
| 30 | 10.113.208.0/20 | 10.113.208.1 – 10.113.223.254 | 10.113.223.255 |
| 31 | 10.113.224.0/20 | 10.113.224.1 – 10.113.239.254 | 10.113.239.255 |
| 32 | 10.113.240.0/20 | 10.113.240.1 – 10.113.255.254 | 10.113.255.255 |
| 33 | 10.114.0.0/20 | 10.114.0.1 – 10.114.15.254 | 10.114.15.255 |
| 34 | 10.114.16.0/20 | 10.114.16.1 – 10.114.31.254 | 10.114.31.255 |
| 35 | 10.114.32.0/20 | 10.114.32.1 – 10.114.47.254 | 10.114.47.255 |
| 36 | 10.114.48.0/20 | 10.114.48.1 – 10.114.63.254 | 10.114.63.255 |
| 37 | 10.114.64.0/20 | 10.114.64.1 – 10.114.79.254 | 10.114.79.255 |
| 38 | 10.114.80.0/20 | 10.114.80.1 – 10.114.95.254 | 10.114.95.255 |
| 39 | 10.114.96.0/20 | 10.114.96.1 – 10.114.111.254 | 10.114.111.255 |
| 40 | 10.114.112.0/20 | 10.114.112.1 – 10.114.127.254 | 10.114.127.255 |
| 41 | 10.114.128.0/20 | 10.114.128.1 – 10.114.143.254 | 10.114.143.255 |
| 42 | 10.114.144.0/20 | 10.114.144.1 – 10.114.159.254 | 10.114.159.255 |
| 43 | 10.114.160.0/20 | 10.114.160.1 – 10.114.175.254 | 10.114.175.255 |
| 44 | 10.114.176.0/20 | 10.114.176.1 – 10.114.191.254 | 10.114.191.255 |
| 45 | 10.114.192.0/20 | 10.114.192.1 – 10.114.207.254 | 10.114.207.255 |
| 46 | 10.114.208.0/20 | 10.114.208.1 – 10.114.223.254 | 10.114.223.255 |
| 47 | 10.114.224.0/20 | 10.114.224.1 – 10.114.239.254 | 10.114.239.255 |
| 48 | 10.114.240.0/20 | 10.114.240.1 – 10.114.255.254 | 10.114.255.255 |
| 49 | 10.115.0.0/20 | 10.115.0.1 – 10.115.15.254 | 10.115.15.255 |
| 50 | 10.115.16.0/20 | 10.115.16.1 – 10.115.31.254 | 10.115.31.255 |
| 51 | 10.115.32.0/20 | 10.115.32.1 – 10.115.47.254 | 10.115.47.255 |
| 52 | 10.115.48.0/20 | 10.115.48.1 – 10.115.63.254 | 10.115.63.255 |
| 53 | 10.115.64.0/20 | 10.115.64.1 – 10.115.79.254 | 10.115.79.255 |
| 54 | 10.115.80.0/20 | 10.115.80.1 – 10.115.95.254 | 10.115.95.255 |
| 55 | 10.115.96.0/20 | 10.115.96.1 – 10.115.111.254 | 10.115.111.255 |
| 56 | 10.115.112.0/20 | 10.115.112.1 – 10.115.127.254 | 10.115.127.255 |
| 57 | 10.115.128.0/20 | 10.115.128.1 – 10.115.143.254 | 10.115.143.255 |
| 58 | 10.115.144.0/20 | 10.115.144.1 – 10.115.159.254 | 10.115.159.255 |
| 59 | 10.115.160.0/20 | 10.115.160.1 – 10.115.175.254 | 10.115.175.255 |
| 60 | 10.115.176.0/20 | 10.115.176.1 – 10.115.191.254 | 10.115.191.255 |
| 61 | 10.115.192.0/20 | 10.115.192.1 – 10.115.207.254 | 10.115.207.255 |
| 62 | 10.115.208.0/20 | 10.115.208.1 – 10.115.223.254 | 10.115.223.255 |
| 63 | 10.115.224.0/20 | 10.115.224.1 – 10.115.239.254 | 10.115.239.255 |
| 64 | 10.115.240.0/20 | 10.115.240.1 – 10.115.255.254 | 10.115.255.255 |
| 65 | 10.116.0.0/20 | 10.116.0.1 – 10.116.15.254 | 10.116.15.255 |
| 66 | 10.116.16.0/20 | 10.116.16.1 – 10.116.31.254 | 10.116.31.255 |
| 67 | 10.116.32.0/20 | 10.116.32.1 – 10.116.47.254 | 10.116.47.255 |
| 68 | 10.116.48.0/20 | 10.116.48.1 – 10.116.63.254 | 10.116.63.255 |
| 69 | 10.116.64.0/20 | 10.116.64.1 – 10.116.79.254 | 10.116.79.255 |
| 70 | 10.116.80.0/20 | 10.116.80.1 – 10.116.95.254 | 10.116.95.255 |
| 71 | 10.116.96.0/20 | 10.116.96.1 – 10.116.111.254 | 10.116.111.255 |
| 72 | 10.116.112.0/20 | 10.116.112.1 – 10.116.127.254 | 10.116.127.255 |
| 73 | 10.116.128.0/20 | 10.116.128.1 – 10.116.143.254 | 10.116.143.255 |
| 74 | 10.116.144.0/20 | 10.116.144.1 – 10.116.159.254 | 10.116.159.255 |
| 75 | 10.116.160.0/20 | 10.116.160.1 – 10.116.175.254 | 10.116.175.255 |
| 76 | 10.116.176.0/20 | 10.116.176.1 – 10.116.191.254 | 10.116.191.255 |
| 77 | 10.116.192.0/20 | 10.116.192.1 – 10.116.207.254 | 10.116.207.255 |
| 78 | 10.116.208.0/20 | 10.116.208.1 – 10.116.223.254 | 10.116.223.255 |
| 79 | 10.116.224.0/20 | 10.116.224.1 – 10.116.239.254 | 10.116.239.255 |
| 80 | 10.116.240.0/20 | 10.116.240.1 – 10.116.255.254 | 10.116.255.255 |
| 81 | 10.117.0.0/20 | 10.117.0.1 – 10.117.15.254 | 10.117.15.255 |
| 82 | 10.117.16.0/20 | 10.117.16.1 – 10.117.31.254 | 10.117.31.255 |
| 83 | 10.117.32.0/20 | 10.117.32.1 – 10.117.47.254 | 10.117.47.255 |
| 84 | 10.117.48.0/20 | 10.117.48.1 – 10.117.63.254 | 10.117.63.255 |
| 85 | 10.117.64.0/20 | 10.117.64.1 – 10.117.79.254 | 10.117.79.255 |
| 86 | 10.117.80.0/20 | 10.117.80.1 – 10.117.95.254 | 10.117.95.255 |
| 87 | 10.117.96.0/20 | 10.117.96.1 – 10.117.111.254 | 10.117.111.255 |
| 88 | 10.117.112.0/20 | 10.117.112.1 – 10.117.127.254 | 10.117.127.255 |
| 89 | 10.117.128.0/20 | 10.117.128.1 – 10.117.143.254 | 10.117.143.255 |
| 90 | 10.117.144.0/20 | 10.117.144.1 – 10.117.159.254 | 10.117.159.255 |
| 91 | 10.117.160.0/20 | 10.117.160.1 – 10.117.175.254 | 10.117.175.255 |
| 92 | 10.117.176.0/20 | 10.117.176.1 – 10.117.191.254 | 10.117.191.255 |
| 93 | 10.117.192.0/20 | 10.117.192.1 – 10.117.207.254 | 10.117.207.255 |
| 94 | 10.117.208.0/20 | 10.117.208.1 – 10.117.223.254 | 10.117.223.255 |
| 95 | 10.117.224.0/20 | 10.117.224.1 – 10.117.239.254 | 10.117.239.255 |
| 96 | 10.117.240.0/20 | 10.117.240.1 – 10.117.255.254 | 10.117.255.255 |
| 97 | 10.118.0.0/20 | 10.118.0.1 – 10.118.15.254 | 10.118.15.255 |
| 98 | 10.118.16.0/20 | 10.118.16.1 – 10.118.31.254 | 10.118.31.255 |
| 99 | 10.118.32.0/20 | 10.118.32.1 – 10.118.47.254 | 10.118.47.255 |
| 100 | 10.118.48.0/20 | 10.118.48.1 – 10.118.63.254 | 10.118.63.255 |
| 101 | 10.118.64.0/20 | 10.118.64.1 – 10.118.79.254 | 10.118.79.255 |
| 102 | 10.118.80.0/20 | 10.118.80.1 – 10.118.95.254 | 10.118.95.255 |
| 103 | 10.118.96.0/20 | 10.118.96.1 – 10.118.111.254 | 10.118.111.255 |
| 104 | 10.118.112.0/20 | 10.118.112.1 – 10.118.127.254 | 10.118.127.255 |
| 105 | 10.118.128.0/20 | 10.118.128.1 – 10.118.143.254 | 10.118.143.255 |
| 106 | 10.118.144.0/20 | 10.118.144.1 – 10.118.159.254 | 10.118.159.255 |
| 107 | 10.118.160.0/20 | 10.118.160.1 – 10.118.175.254 | 10.118.175.255 |
| 108 | 10.118.176.0/20 | 10.118.176.1 – 10.118.191.254 | 10.118.191.255 |
| 109 | 10.118.192.0/20 | 10.118.192.1 – 10.118.207.254 | 10.118.207.255 |
| 110 | 10.118.208.0/20 | 10.118.208.1 – 10.118.223.254 | 10.118.223.255 |
| 111 | 10.118.224.0/20 | 10.118.224.1 – 10.118.239.254 | 10.118.239.255 |
| 112 | 10.118.240.0/20 | 10.118.240.1 – 10.118.255.254 | 10.118.255.255 |
| 113 | 10.119.0.0/20 | 10.119.0.1 – 10.119.15.254 | 10.119.15.255 |
| 114 | 10.119.16.0/20 | 10.119.16.1 – 10.119.31.254 | 10.119.31.255 |
| 115 | 10.119.32.0/20 | 10.119.32.1 – 10.119.47.254 | 10.119.47.255 |
| 116 | 10.119.48.0/20 | 10.119.48.1 – 10.119.63.254 | 10.119.63.255 |
| 117 | 10.119.64.0/20 | 10.119.64.1 – 10.119.79.254 | 10.119.79.255 |
| 118 | 10.119.80.0/20 | 10.119.80.1 – 10.119.95.254 | 10.119.95.255 |
| 119 | 10.119.96.0/20 | 10.119.96.1 – 10.119.111.254 | 10.119.111.255 |
| 120 | 10.119.112.0/20 | 10.119.112.1 – 10.119.127.254 | 10.119.127.255 |
| 121 | 10.119.128.0/20 | 10.119.128.1 – 10.119.143.254 | 10.119.143.255 |
| 122 | 10.119.144.0/20 | 10.119.144.1 – 10.119.159.254 | 10.119.159.255 |
| 123 | 10.119.160.0/20 | 10.119.160.1 – 10.119.175.254 | 10.119.175.255 |
| 124 | 10.119.176.0/20 | 10.119.176.1 – 10.119.191.254 | 10.119.191.255 |
| 125 | 10.119.192.0/20 | 10.119.192.1 – 10.119.207.254 | 10.119.207.255 |
| 126 | 10.119.208.0/20 | 10.119.208.1 – 10.119.223.254 | 10.119.223.255 |
| 127 | 10.119.224.0/20 | 10.119.224.1 – 10.119.239.254 | 10.119.239.255 |
| 128 | 10.119.240.0/20 | 10.119.240.1 – 10.119.255.254 | 10.119.255.255 |
| 129 | 10.120.0.0/20 | 10.120.0.1 – 10.120.15.254 | 10.120.15.255 |
| 130 | 10.120.16.0/20 | 10.120.16.1 – 10.120.31.254 | 10.120.31.255 |
| 131 | 10.120.32.0/20 | 10.120.32.1 – 10.120.47.254 | 10.120.47.255 |
| 132 | 10.120.48.0/20 | 10.120.48.1 – 10.120.63.254 | 10.120.63.255 |
| 133 | 10.120.64.0/20 | 10.120.64.1 – 10.120.79.254 | 10.120.79.255 |
| 134 | 10.120.80.0/20 | 10.120.80.1 – 10.120.95.254 | 10.120.95.255 |
| 135 | 10.120.96.0/20 | 10.120.96.1 – 10.120.111.254 | 10.120.111.255 |
| 136 | 10.120.112.0/20 | 10.120.112.1 – 10.120.127.254 | 10.120.127.255 |
| 137 | 10.120.128.0/20 | 10.120.128.1 – 10.120.143.254 | 10.120.143.255 |
| 138 | 10.120.144.0/20 | 10.120.144.1 – 10.120.159.254 | 10.120.159.255 |
| 139 | 10.120.160.0/20 | 10.120.160.1 – 10.120.175.254 | 10.120.175.255 |
| 140 | 10.120.176.0/20 | 10.120.176.1 – 10.120.191.254 | 10.120.191.255 |
| 141 | 10.120.192.0/20 | 10.120.192.1 – 10.120.207.254 | 10.120.207.255 |
| 142 | 10.120.208.0/20 | 10.120.208.1 – 10.120.223.254 | 10.120.223.255 |
| 143 | 10.120.224.0/20 | 10.120.224.1 – 10.120.239.254 | 10.120.239.255 |
| 144 | 10.120.240.0/20 | 10.120.240.1 – 10.120.255.254 | 10.120.255.255 |
| 145 | 10.121.0.0/20 | 10.121.0.1 – 10.121.15.254 | 10.121.15.255 |
| 146 | 10.121.16.0/20 | 10.121.16.1 – 10.121.31.254 | 10.121.31.255 |
| 147 | 10.121.32.0/20 | 10.121.32.1 – 10.121.47.254 | 10.121.47.255 |
| 148 | 10.121.48.0/20 | 10.121.48.1 – 10.121.63.254 | 10.121.63.255 |
| 149 | 10.121.64.0/20 | 10.121.64.1 – 10.121.79.254 | 10.121.79.255 |
| 150 | 10.121.80.0/20 | 10.121.80.1 – 10.121.95.254 | 10.121.95.255 |
| 151 | 10.121.96.0/20 | 10.121.96.1 – 10.121.111.254 | 10.121.111.255 |
| 152 | 10.121.112.0/20 | 10.121.112.1 – 10.121.127.254 | 10.121.127.255 |
| 153 | 10.121.128.0/20 | 10.121.128.1 – 10.121.143.254 | 10.121.143.255 |
| 154 | 10.121.144.0/20 | 10.121.144.1 – 10.121.159.254 | 10.121.159.255 |
| 155 | 10.121.160.0/20 | 10.121.160.1 – 10.121.175.254 | 10.121.175.255 |
| 156 | 10.121.176.0/20 | 10.121.176.1 – 10.121.191.254 | 10.121.191.255 |
| 157 | 10.121.192.0/20 | 10.121.192.1 – 10.121.207.254 | 10.121.207.255 |
| 158 | 10.121.208.0/20 | 10.121.208.1 – 10.121.223.254 | 10.121.223.255 |
| 159 | 10.121.224.0/20 | 10.121.224.1 – 10.121.239.254 | 10.121.239.255 |
| 160 | 10.121.240.0/20 | 10.121.240.1 – 10.121.255.254 | 10.121.255.255 |
| 161 | 10.122.0.0/20 | 10.122.0.1 – 10.122.15.254 | 10.122.15.255 |
| 162 | 10.122.16.0/20 | 10.122.16.1 – 10.122.31.254 | 10.122.31.255 |
| 163 | 10.122.32.0/20 | 10.122.32.1 – 10.122.47.254 | 10.122.47.255 |
| 164 | 10.122.48.0/20 | 10.122.48.1 – 10.122.63.254 | 10.122.63.255 |
| 165 | 10.122.64.0/20 | 10.122.64.1 – 10.122.79.254 | 10.122.79.255 |
| 166 | 10.122.80.0/20 | 10.122.80.1 – 10.122.95.254 | 10.122.95.255 |
| 167 | 10.122.96.0/20 | 10.122.96.1 – 10.122.111.254 | 10.122.111.255 |
| 168 | 10.122.112.0/20 | 10.122.112.1 – 10.122.127.254 | 10.122.127.255 |
| 169 | 10.122.128.0/20 | 10.122.128.1 – 10.122.143.254 | 10.122.143.255 |
| 170 | 10.122.144.0/20 | 10.122.144.1 – 10.122.159.254 | 10.122.159.255 |
| 171 | 10.122.160.0/20 | 10.122.160.1 – 10.122.175.254 | 10.122.175.255 |
| 172 | 10.122.176.0/20 | 10.122.176.1 – 10.122.191.254 | 10.122.191.255 |
| 173 | 10.122.192.0/20 | 10.122.192.1 – 10.122.207.254 | 10.122.207.255 |
| 174 | 10.122.208.0/20 | 10.122.208.1 – 10.122.223.254 | 10.122.223.255 |
| 175 | 10.122.224.0/20 | 10.122.224.1 – 10.122.239.254 | 10.122.239.255 |
| 176 | 10.122.240.0/20 | 10.122.240.1 – 10.122.255.254 | 10.122.255.255 |
| 177 | 10.123.0.0/20 | 10.123.0.1 – 10.123.15.254 | 10.123.15.255 |
| 178 | 10.123.16.0/20 | 10.123.16.1 – 10.123.31.254 | 10.123.31.255 |
| 179 | 10.123.32.0/20 | 10.123.32.1 – 10.123.47.254 | 10.123.47.255 |
| 180 | 10.123.48.0/20 | 10.123.48.1 – 10.123.63.254 | 10.123.63.255 |
| 181 | 10.123.64.0/20 | 10.123.64.1 – 10.123.79.254 | 10.123.79.255 |
| 182 | 10.123.80.0/20 | 10.123.80.1 – 10.123.95.254 | 10.123.95.255 |
| 183 | 10.123.96.0/20 | 10.123.96.1 – 10.123.111.254 | 10.123.111.255 |
| 184 | 10.123.112.0/20 | 10.123.112.1 – 10.123.127.254 | 10.123.127.255 |
| 185 | 10.123.128.0/20 | 10.123.128.1 – 10.123.143.254 | 10.123.143.255 |
| 186 | 10.123.144.0/20 | 10.123.144.1 – 10.123.159.254 | 10.123.159.255 |
| 187 | 10.123.160.0/20 | 10.123.160.1 – 10.123.175.254 | 10.123.175.255 |
| 188 | 10.123.176.0/20 | 10.123.176.1 – 10.123.191.254 | 10.123.191.255 |
| 189 | 10.123.192.0/20 | 10.123.192.1 – 10.123.207.254 | 10.123.207.255 |
| 190 | 10.123.208.0/20 | 10.123.208.1 – 10.123.223.254 | 10.123.223.255 |
| 191 | 10.123.224.0/20 | 10.123.224.1 – 10.123.239.254 | 10.123.239.255 |
| 192 | 10.123.240.0/20 | 10.123.240.1 – 10.123.255.254 | 10.123.255.255 |
| 193 | 10.124.0.0/20 | 10.124.0.1 – 10.124.15.254 | 10.124.15.255 |
| 194 | 10.124.16.0/20 | 10.124.16.1 – 10.124.31.254 | 10.124.31.255 |
| 195 | 10.124.32.0/20 | 10.124.32.1 – 10.124.47.254 | 10.124.47.255 |
| 196 | 10.124.48.0/20 | 10.124.48.1 – 10.124.63.254 | 10.124.63.255 |
| 197 | 10.124.64.0/20 | 10.124.64.1 – 10.124.79.254 | 10.124.79.255 |
| 198 | 10.124.80.0/20 | 10.124.80.1 – 10.124.95.254 | 10.124.95.255 |
| 199 | 10.124.96.0/20 | 10.124.96.1 – 10.124.111.254 | 10.124.111.255 |
| 200 | 10.124.112.0/20 | 10.124.112.1 – 10.124.127.254 | 10.124.127.255 |
| 201 | 10.124.128.0/20 | 10.124.128.1 – 10.124.143.254 | 10.124.143.255 |
| 202 | 10.124.144.0/20 | 10.124.144.1 – 10.124.159.254 | 10.124.159.255 |
| 203 | 10.124.160.0/20 | 10.124.160.1 – 10.124.175.254 | 10.124.175.255 |
| 204 | 10.124.176.0/20 | 10.124.176.1 – 10.124.191.254 | 10.124.191.255 |
| 205 | 10.124.192.0/20 | 10.124.192.1 – 10.124.207.254 | 10.124.207.255 |
| 206 | 10.124.208.0/20 | 10.124.208.1 – 10.124.223.254 | 10.124.223.255 |
| 207 | 10.124.224.0/20 | 10.124.224.1 – 10.124.239.254 | 10.124.239.255 |
| 208 | 10.124.240.0/20 | 10.124.240.1 – 10.124.255.254 | 10.124.255.255 |
| 209 | 10.125.0.0/20 | 10.125.0.1 – 10.125.15.254 | 10.125.15.255 |
| 210 | 10.125.16.0/20 | 10.125.16.1 – 10.125.31.254 | 10.125.31.255 |
| 211 | 10.125.32.0/20 | 10.125.32.1 – 10.125.47.254 | 10.125.47.255 |
| 212 | 10.125.48.0/20 | 10.125.48.1 – 10.125.63.254 | 10.125.63.255 |
| 213 | 10.125.64.0/20 | 10.125.64.1 – 10.125.79.254 | 10.125.79.255 |
| 214 | 10.125.80.0/20 | 10.125.80.1 – 10.125.95.254 | 10.125.95.255 |
| 215 | 10.125.96.0/20 | 10.125.96.1 – 10.125.111.254 | 10.125.111.255 |
| 216 | 10.125.112.0/20 | 10.125.112.1 – 10.125.127.254 | 10.125.127.255 |
| 217 | 10.125.128.0/20 | 10.125.128.1 – 10.125.143.254 | 10.125.143.255 |
| 218 | 10.125.144.0/20 | 10.125.144.1 – 10.125.159.254 | 10.125.159.255 |
| 219 | 10.125.160.0/20 | 10.125.160.1 – 10.125.175.254 | 10.125.175.255 |
| 220 | 10.125.176.0/20 | 10.125.176.1 – 10.125.191.254 | 10.125.191.255 |
| 221 | 10.125.192.0/20 | 10.125.192.1 – 10.125.207.254 | 10.125.207.255 |
| 222 | 10.125.208.0/20 | 10.125.208.1 – 10.125.223.254 | 10.125.223.255 |
| 223 | 10.125.224.0/20 | 10.125.224.1 – 10.125.239.254 | 10.125.239.255 |
| 224 | 10.125.240.0/20 | 10.125.240.1 – 10.125.255.254 | 10.125.255.255 |
| 225 | 10.126.0.0/20 | 10.126.0.1 – 10.126.15.254 | 10.126.15.255 |
| 226 | 10.126.16.0/20 | 10.126.16.1 – 10.126.31.254 | 10.126.31.255 |
| 227 | 10.126.32.0/20 | 10.126.32.1 – 10.126.47.254 | 10.126.47.255 |
| 228 | 10.126.48.0/20 | 10.126.48.1 – 10.126.63.254 | 10.126.63.255 |
| 229 | 10.126.64.0/20 | 10.126.64.1 – 10.126.79.254 | 10.126.79.255 |
| 230 | 10.126.80.0/20 | 10.126.80.1 – 10.126.95.254 | 10.126.95.255 |
| 231 | 10.126.96.0/20 | 10.126.96.1 – 10.126.111.254 | 10.126.111.255 |
| 232 | 10.126.112.0/20 | 10.126.112.1 – 10.126.127.254 | 10.126.127.255 |
| 233 | 10.126.128.0/20 | 10.126.128.1 – 10.126.143.254 | 10.126.143.255 |
| 234 | 10.126.144.0/20 | 10.126.144.1 – 10.126.159.254 | 10.126.159.255 |
| 235 | 10.126.160.0/20 | 10.126.160.1 – 10.126.175.254 | 10.126.175.255 |
| 236 | 10.126.176.0/20 | 10.126.176.1 – 10.126.191.254 | 10.126.191.255 |
| 237 | 10.126.192.0/20 | 10.126.192.1 – 10.126.207.254 | 10.126.207.255 |
| 238 | 10.126.208.0/20 | 10.126.208.1 – 10.126.223.254 | 10.126.223.255 |
| 239 | 10.126.224.0/20 | 10.126.224.1 – 10.126.239.254 | 10.126.239.255 |
| 240 | 10.126.240.0/20 | 10.126.240.1 – 10.126.255.254 | 10.126.255.255 |
| 241 | 10.127.0.0/20 | 10.127.0.1 – 10.127.15.254 | 10.127.15.255 |
| 242 | 10.127.16.0/20 | 10.127.16.1 – 10.127.31.254 | 10.127.31.255 |
| 243 | 10.127.32.0/20 | 10.127.32.1 – 10.127.47.254 | 10.127.47.255 |
| 244 | 10.127.48.0/20 | 10.127.48.1 – 10.127.63.254 | 10.127.63.255 |
| 245 | 10.127.64.0/20 | 10.127.64.1 – 10.127.79.254 | 10.127.79.255 |
| 246 | 10.127.80.0/20 | 10.127.80.1 – 10.127.95.254 | 10.127.95.255 |
| 247 | 10.127.96.0/20 | 10.127.96.1 – 10.127.111.254 | 10.127.111.255 |
| 248 | 10.127.112.0/20 | 10.127.112.1 – 10.127.127.254 | 10.127.127.255 |
| 249 | 10.127.128.0/20 | 10.127.128.1 – 10.127.143.254 | 10.127.143.255 |
| 250 | 10.127.144.0/20 | 10.127.144.1 – 10.127.159.254 | 10.127.159.255 |
| 251 | 10.127.160.0/20 | 10.127.160.1 – 10.127.175.254 | 10.127.175.255 |
| 252 | 10.127.176.0/20 | 10.127.176.1 – 10.127.191.254 | 10.127.191.255 |
| 253 | 10.127.192.0/20 | 10.127.192.1 – 10.127.207.254 | 10.127.207.255 |
| 254 | 10.127.208.0/20 | 10.127.208.1 – 10.127.223.254 | 10.127.223.255 |
| 255 | 10.127.224.0/20 | 10.127.224.1 – 10.127.239.254 | 10.127.239.255 |
| 256 | 10.127.240.0/20 | 10.127.240.1 – 10.127.255.254 | 10.127.255.255 |
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 /12 |
|---|---|---|---|---|
| /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 | 1 |
| /13 | 255.248.0.0 | 524,288 | 524,286 | 2 split → |
| /14 | 255.252.0.0 | 262,144 | 262,142 | 4 split → |
| /15 | 255.254.0.0 | 131,072 | 131,070 | 8 split → |
| /16 | 255.255.0.0 | 65,536 | 65,534 | 16 split → |
| /17 | 255.255.128.0 | 32,768 | 32,766 | 32 split → |
| /18 | 255.255.192.0 | 16,384 | 16,382 | 64 split → |
| /19 | 255.255.224.0 | 8,192 | 8,190 | 128 split → |
| /20 | 255.255.240.0 | 4,096 | 4,094 | 256 split → |
| /21 | 255.255.248.0 | 2,048 | 2,046 | 512 split → |
| /22 | 255.255.252.0 | 1,024 | 1,022 | 1,024 split → |
| /23 | 255.255.254.0 | 512 | 510 | 2,048 split → |
| /24 | 255.255.255.0 | 256 | 254 | 4,096 split → |
| /25 | 255.255.255.128 | 128 | 126 | 8,192 split → |
| /26 | 255.255.255.192 | 64 | 62 | 16,384 split → |
| /27 | 255.255.255.224 | 32 | 30 | 32,768 split → |
| /28 | 255.255.255.240 | 16 | 14 | 65,536 split → |
| /29 | 255.255.255.248 | 8 | 6 | 131,072 split → |
| /30 | 255.255.255.252 | 4 | 2 | 262,144 split → |
| /31 | 255.255.255.254 | 2 | 2 | 524,288 split → |
| /32 | 255.255.255.255 | 1 | 1 | 1,048,576 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.