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)10.240.0.0/12
network10.240.0.0/12
broadcast10.255.255.255
first host10.240.0.1
last host10.255.255.254
subnet mask255.240.0.0
wildcard0.15.255.255
addresses1,048,576
usable hosts1,048,574
classA
ipcalc 10.240.0.0/12
address00001010.11110000.00000000.00000000
subnet mask11111111.11110000.00000000.00000000
network00001010.11110000.00000000.00000000
broadcast00001010.11111111.11111111.11111111
green = network part, grey = host part
hex0x0af00000
decimal183500800
reverse dns0.0.240.10.in-addr.arpa
ipv4-mapped::ffff:af0:0
/12 split into /25 · 8,192 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.240.0.0/25 | 10.240.0.1 – 10.240.0.126 | 10.240.0.127 |
| 2 | 10.240.0.128/25 | 10.240.0.129 – 10.240.0.254 | 10.240.0.255 |
| 3 | 10.240.1.0/25 | 10.240.1.1 – 10.240.1.126 | 10.240.1.127 |
| 4 | 10.240.1.128/25 | 10.240.1.129 – 10.240.1.254 | 10.240.1.255 |
| 5 | 10.240.2.0/25 | 10.240.2.1 – 10.240.2.126 | 10.240.2.127 |
| 6 | 10.240.2.128/25 | 10.240.2.129 – 10.240.2.254 | 10.240.2.255 |
| 7 | 10.240.3.0/25 | 10.240.3.1 – 10.240.3.126 | 10.240.3.127 |
| 8 | 10.240.3.128/25 | 10.240.3.129 – 10.240.3.254 | 10.240.3.255 |
| 9 | 10.240.4.0/25 | 10.240.4.1 – 10.240.4.126 | 10.240.4.127 |
| 10 | 10.240.4.128/25 | 10.240.4.129 – 10.240.4.254 | 10.240.4.255 |
| 11 | 10.240.5.0/25 | 10.240.5.1 – 10.240.5.126 | 10.240.5.127 |
| 12 | 10.240.5.128/25 | 10.240.5.129 – 10.240.5.254 | 10.240.5.255 |
| 13 | 10.240.6.0/25 | 10.240.6.1 – 10.240.6.126 | 10.240.6.127 |
| 14 | 10.240.6.128/25 | 10.240.6.129 – 10.240.6.254 | 10.240.6.255 |
| 15 | 10.240.7.0/25 | 10.240.7.1 – 10.240.7.126 | 10.240.7.127 |
| 16 | 10.240.7.128/25 | 10.240.7.129 – 10.240.7.254 | 10.240.7.255 |
| 17 | 10.240.8.0/25 | 10.240.8.1 – 10.240.8.126 | 10.240.8.127 |
| 18 | 10.240.8.128/25 | 10.240.8.129 – 10.240.8.254 | 10.240.8.255 |
| 19 | 10.240.9.0/25 | 10.240.9.1 – 10.240.9.126 | 10.240.9.127 |
| 20 | 10.240.9.128/25 | 10.240.9.129 – 10.240.9.254 | 10.240.9.255 |
| 21 | 10.240.10.0/25 | 10.240.10.1 – 10.240.10.126 | 10.240.10.127 |
| 22 | 10.240.10.128/25 | 10.240.10.129 – 10.240.10.254 | 10.240.10.255 |
| 23 | 10.240.11.0/25 | 10.240.11.1 – 10.240.11.126 | 10.240.11.127 |
| 24 | 10.240.11.128/25 | 10.240.11.129 – 10.240.11.254 | 10.240.11.255 |
| 25 | 10.240.12.0/25 | 10.240.12.1 – 10.240.12.126 | 10.240.12.127 |
| 26 | 10.240.12.128/25 | 10.240.12.129 – 10.240.12.254 | 10.240.12.255 |
| 27 | 10.240.13.0/25 | 10.240.13.1 – 10.240.13.126 | 10.240.13.127 |
| 28 | 10.240.13.128/25 | 10.240.13.129 – 10.240.13.254 | 10.240.13.255 |
| 29 | 10.240.14.0/25 | 10.240.14.1 – 10.240.14.126 | 10.240.14.127 |
| 30 | 10.240.14.128/25 | 10.240.14.129 – 10.240.14.254 | 10.240.14.255 |
| 31 | 10.240.15.0/25 | 10.240.15.1 – 10.240.15.126 | 10.240.15.127 |
| 32 | 10.240.15.128/25 | 10.240.15.129 – 10.240.15.254 | 10.240.15.255 |
| 33 | 10.240.16.0/25 | 10.240.16.1 – 10.240.16.126 | 10.240.16.127 |
| 34 | 10.240.16.128/25 | 10.240.16.129 – 10.240.16.254 | 10.240.16.255 |
| 35 | 10.240.17.0/25 | 10.240.17.1 – 10.240.17.126 | 10.240.17.127 |
| 36 | 10.240.17.128/25 | 10.240.17.129 – 10.240.17.254 | 10.240.17.255 |
| 37 | 10.240.18.0/25 | 10.240.18.1 – 10.240.18.126 | 10.240.18.127 |
| 38 | 10.240.18.128/25 | 10.240.18.129 – 10.240.18.254 | 10.240.18.255 |
| 39 | 10.240.19.0/25 | 10.240.19.1 – 10.240.19.126 | 10.240.19.127 |
| 40 | 10.240.19.128/25 | 10.240.19.129 – 10.240.19.254 | 10.240.19.255 |
| 41 | 10.240.20.0/25 | 10.240.20.1 – 10.240.20.126 | 10.240.20.127 |
| 42 | 10.240.20.128/25 | 10.240.20.129 – 10.240.20.254 | 10.240.20.255 |
| 43 | 10.240.21.0/25 | 10.240.21.1 – 10.240.21.126 | 10.240.21.127 |
| 44 | 10.240.21.128/25 | 10.240.21.129 – 10.240.21.254 | 10.240.21.255 |
| 45 | 10.240.22.0/25 | 10.240.22.1 – 10.240.22.126 | 10.240.22.127 |
| 46 | 10.240.22.128/25 | 10.240.22.129 – 10.240.22.254 | 10.240.22.255 |
| 47 | 10.240.23.0/25 | 10.240.23.1 – 10.240.23.126 | 10.240.23.127 |
| 48 | 10.240.23.128/25 | 10.240.23.129 – 10.240.23.254 | 10.240.23.255 |
| 49 | 10.240.24.0/25 | 10.240.24.1 – 10.240.24.126 | 10.240.24.127 |
| 50 | 10.240.24.128/25 | 10.240.24.129 – 10.240.24.254 | 10.240.24.255 |
| 51 | 10.240.25.0/25 | 10.240.25.1 – 10.240.25.126 | 10.240.25.127 |
| 52 | 10.240.25.128/25 | 10.240.25.129 – 10.240.25.254 | 10.240.25.255 |
| 53 | 10.240.26.0/25 | 10.240.26.1 – 10.240.26.126 | 10.240.26.127 |
| 54 | 10.240.26.128/25 | 10.240.26.129 – 10.240.26.254 | 10.240.26.255 |
| 55 | 10.240.27.0/25 | 10.240.27.1 – 10.240.27.126 | 10.240.27.127 |
| 56 | 10.240.27.128/25 | 10.240.27.129 – 10.240.27.254 | 10.240.27.255 |
| 57 | 10.240.28.0/25 | 10.240.28.1 – 10.240.28.126 | 10.240.28.127 |
| 58 | 10.240.28.128/25 | 10.240.28.129 – 10.240.28.254 | 10.240.28.255 |
| 59 | 10.240.29.0/25 | 10.240.29.1 – 10.240.29.126 | 10.240.29.127 |
| 60 | 10.240.29.128/25 | 10.240.29.129 – 10.240.29.254 | 10.240.29.255 |
| 61 | 10.240.30.0/25 | 10.240.30.1 – 10.240.30.126 | 10.240.30.127 |
| 62 | 10.240.30.128/25 | 10.240.30.129 – 10.240.30.254 | 10.240.30.255 |
| 63 | 10.240.31.0/25 | 10.240.31.1 – 10.240.31.126 | 10.240.31.127 |
| 64 | 10.240.31.128/25 | 10.240.31.129 – 10.240.31.254 | 10.240.31.255 |
| 65 | 10.240.32.0/25 | 10.240.32.1 – 10.240.32.126 | 10.240.32.127 |
| 66 | 10.240.32.128/25 | 10.240.32.129 – 10.240.32.254 | 10.240.32.255 |
| 67 | 10.240.33.0/25 | 10.240.33.1 – 10.240.33.126 | 10.240.33.127 |
| 68 | 10.240.33.128/25 | 10.240.33.129 – 10.240.33.254 | 10.240.33.255 |
| 69 | 10.240.34.0/25 | 10.240.34.1 – 10.240.34.126 | 10.240.34.127 |
| 70 | 10.240.34.128/25 | 10.240.34.129 – 10.240.34.254 | 10.240.34.255 |
| 71 | 10.240.35.0/25 | 10.240.35.1 – 10.240.35.126 | 10.240.35.127 |
| 72 | 10.240.35.128/25 | 10.240.35.129 – 10.240.35.254 | 10.240.35.255 |
| 73 | 10.240.36.0/25 | 10.240.36.1 – 10.240.36.126 | 10.240.36.127 |
| 74 | 10.240.36.128/25 | 10.240.36.129 – 10.240.36.254 | 10.240.36.255 |
| 75 | 10.240.37.0/25 | 10.240.37.1 – 10.240.37.126 | 10.240.37.127 |
| 76 | 10.240.37.128/25 | 10.240.37.129 – 10.240.37.254 | 10.240.37.255 |
| 77 | 10.240.38.0/25 | 10.240.38.1 – 10.240.38.126 | 10.240.38.127 |
| 78 | 10.240.38.128/25 | 10.240.38.129 – 10.240.38.254 | 10.240.38.255 |
| 79 | 10.240.39.0/25 | 10.240.39.1 – 10.240.39.126 | 10.240.39.127 |
| 80 | 10.240.39.128/25 | 10.240.39.129 – 10.240.39.254 | 10.240.39.255 |
| 81 | 10.240.40.0/25 | 10.240.40.1 – 10.240.40.126 | 10.240.40.127 |
| 82 | 10.240.40.128/25 | 10.240.40.129 – 10.240.40.254 | 10.240.40.255 |
| 83 | 10.240.41.0/25 | 10.240.41.1 – 10.240.41.126 | 10.240.41.127 |
| 84 | 10.240.41.128/25 | 10.240.41.129 – 10.240.41.254 | 10.240.41.255 |
| 85 | 10.240.42.0/25 | 10.240.42.1 – 10.240.42.126 | 10.240.42.127 |
| 86 | 10.240.42.128/25 | 10.240.42.129 – 10.240.42.254 | 10.240.42.255 |
| 87 | 10.240.43.0/25 | 10.240.43.1 – 10.240.43.126 | 10.240.43.127 |
| 88 | 10.240.43.128/25 | 10.240.43.129 – 10.240.43.254 | 10.240.43.255 |
| 89 | 10.240.44.0/25 | 10.240.44.1 – 10.240.44.126 | 10.240.44.127 |
| 90 | 10.240.44.128/25 | 10.240.44.129 – 10.240.44.254 | 10.240.44.255 |
| 91 | 10.240.45.0/25 | 10.240.45.1 – 10.240.45.126 | 10.240.45.127 |
| 92 | 10.240.45.128/25 | 10.240.45.129 – 10.240.45.254 | 10.240.45.255 |
| 93 | 10.240.46.0/25 | 10.240.46.1 – 10.240.46.126 | 10.240.46.127 |
| 94 | 10.240.46.128/25 | 10.240.46.129 – 10.240.46.254 | 10.240.46.255 |
| 95 | 10.240.47.0/25 | 10.240.47.1 – 10.240.47.126 | 10.240.47.127 |
| 96 | 10.240.47.128/25 | 10.240.47.129 – 10.240.47.254 | 10.240.47.255 |
| 97 | 10.240.48.0/25 | 10.240.48.1 – 10.240.48.126 | 10.240.48.127 |
| 98 | 10.240.48.128/25 | 10.240.48.129 – 10.240.48.254 | 10.240.48.255 |
| 99 | 10.240.49.0/25 | 10.240.49.1 – 10.240.49.126 | 10.240.49.127 |
| 100 | 10.240.49.128/25 | 10.240.49.129 – 10.240.49.254 | 10.240.49.255 |
| 101 | 10.240.50.0/25 | 10.240.50.1 – 10.240.50.126 | 10.240.50.127 |
| 102 | 10.240.50.128/25 | 10.240.50.129 – 10.240.50.254 | 10.240.50.255 |
| 103 | 10.240.51.0/25 | 10.240.51.1 – 10.240.51.126 | 10.240.51.127 |
| 104 | 10.240.51.128/25 | 10.240.51.129 – 10.240.51.254 | 10.240.51.255 |
| 105 | 10.240.52.0/25 | 10.240.52.1 – 10.240.52.126 | 10.240.52.127 |
| 106 | 10.240.52.128/25 | 10.240.52.129 – 10.240.52.254 | 10.240.52.255 |
| 107 | 10.240.53.0/25 | 10.240.53.1 – 10.240.53.126 | 10.240.53.127 |
| 108 | 10.240.53.128/25 | 10.240.53.129 – 10.240.53.254 | 10.240.53.255 |
| 109 | 10.240.54.0/25 | 10.240.54.1 – 10.240.54.126 | 10.240.54.127 |
| 110 | 10.240.54.128/25 | 10.240.54.129 – 10.240.54.254 | 10.240.54.255 |
| 111 | 10.240.55.0/25 | 10.240.55.1 – 10.240.55.126 | 10.240.55.127 |
| 112 | 10.240.55.128/25 | 10.240.55.129 – 10.240.55.254 | 10.240.55.255 |
| 113 | 10.240.56.0/25 | 10.240.56.1 – 10.240.56.126 | 10.240.56.127 |
| 114 | 10.240.56.128/25 | 10.240.56.129 – 10.240.56.254 | 10.240.56.255 |
| 115 | 10.240.57.0/25 | 10.240.57.1 – 10.240.57.126 | 10.240.57.127 |
| 116 | 10.240.57.128/25 | 10.240.57.129 – 10.240.57.254 | 10.240.57.255 |
| 117 | 10.240.58.0/25 | 10.240.58.1 – 10.240.58.126 | 10.240.58.127 |
| 118 | 10.240.58.128/25 | 10.240.58.129 – 10.240.58.254 | 10.240.58.255 |
| 119 | 10.240.59.0/25 | 10.240.59.1 – 10.240.59.126 | 10.240.59.127 |
| 120 | 10.240.59.128/25 | 10.240.59.129 – 10.240.59.254 | 10.240.59.255 |
| 121 | 10.240.60.0/25 | 10.240.60.1 – 10.240.60.126 | 10.240.60.127 |
| 122 | 10.240.60.128/25 | 10.240.60.129 – 10.240.60.254 | 10.240.60.255 |
| 123 | 10.240.61.0/25 | 10.240.61.1 – 10.240.61.126 | 10.240.61.127 |
| 124 | 10.240.61.128/25 | 10.240.61.129 – 10.240.61.254 | 10.240.61.255 |
| 125 | 10.240.62.0/25 | 10.240.62.1 – 10.240.62.126 | 10.240.62.127 |
| 126 | 10.240.62.128/25 | 10.240.62.129 – 10.240.62.254 | 10.240.62.255 |
| 127 | 10.240.63.0/25 | 10.240.63.1 – 10.240.63.126 | 10.240.63.127 |
| 128 | 10.240.63.128/25 | 10.240.63.129 – 10.240.63.254 | 10.240.63.255 |
| 129 | 10.240.64.0/25 | 10.240.64.1 – 10.240.64.126 | 10.240.64.127 |
| 130 | 10.240.64.128/25 | 10.240.64.129 – 10.240.64.254 | 10.240.64.255 |
| 131 | 10.240.65.0/25 | 10.240.65.1 – 10.240.65.126 | 10.240.65.127 |
| 132 | 10.240.65.128/25 | 10.240.65.129 – 10.240.65.254 | 10.240.65.255 |
| 133 | 10.240.66.0/25 | 10.240.66.1 – 10.240.66.126 | 10.240.66.127 |
| 134 | 10.240.66.128/25 | 10.240.66.129 – 10.240.66.254 | 10.240.66.255 |
| 135 | 10.240.67.0/25 | 10.240.67.1 – 10.240.67.126 | 10.240.67.127 |
| 136 | 10.240.67.128/25 | 10.240.67.129 – 10.240.67.254 | 10.240.67.255 |
| 137 | 10.240.68.0/25 | 10.240.68.1 – 10.240.68.126 | 10.240.68.127 |
| 138 | 10.240.68.128/25 | 10.240.68.129 – 10.240.68.254 | 10.240.68.255 |
| 139 | 10.240.69.0/25 | 10.240.69.1 – 10.240.69.126 | 10.240.69.127 |
| 140 | 10.240.69.128/25 | 10.240.69.129 – 10.240.69.254 | 10.240.69.255 |
| 141 | 10.240.70.0/25 | 10.240.70.1 – 10.240.70.126 | 10.240.70.127 |
| 142 | 10.240.70.128/25 | 10.240.70.129 – 10.240.70.254 | 10.240.70.255 |
| 143 | 10.240.71.0/25 | 10.240.71.1 – 10.240.71.126 | 10.240.71.127 |
| 144 | 10.240.71.128/25 | 10.240.71.129 – 10.240.71.254 | 10.240.71.255 |
| 145 | 10.240.72.0/25 | 10.240.72.1 – 10.240.72.126 | 10.240.72.127 |
| 146 | 10.240.72.128/25 | 10.240.72.129 – 10.240.72.254 | 10.240.72.255 |
| 147 | 10.240.73.0/25 | 10.240.73.1 – 10.240.73.126 | 10.240.73.127 |
| 148 | 10.240.73.128/25 | 10.240.73.129 – 10.240.73.254 | 10.240.73.255 |
| 149 | 10.240.74.0/25 | 10.240.74.1 – 10.240.74.126 | 10.240.74.127 |
| 150 | 10.240.74.128/25 | 10.240.74.129 – 10.240.74.254 | 10.240.74.255 |
| 151 | 10.240.75.0/25 | 10.240.75.1 – 10.240.75.126 | 10.240.75.127 |
| 152 | 10.240.75.128/25 | 10.240.75.129 – 10.240.75.254 | 10.240.75.255 |
| 153 | 10.240.76.0/25 | 10.240.76.1 – 10.240.76.126 | 10.240.76.127 |
| 154 | 10.240.76.128/25 | 10.240.76.129 – 10.240.76.254 | 10.240.76.255 |
| 155 | 10.240.77.0/25 | 10.240.77.1 – 10.240.77.126 | 10.240.77.127 |
| 156 | 10.240.77.128/25 | 10.240.77.129 – 10.240.77.254 | 10.240.77.255 |
| 157 | 10.240.78.0/25 | 10.240.78.1 – 10.240.78.126 | 10.240.78.127 |
| 158 | 10.240.78.128/25 | 10.240.78.129 – 10.240.78.254 | 10.240.78.255 |
| 159 | 10.240.79.0/25 | 10.240.79.1 – 10.240.79.126 | 10.240.79.127 |
| 160 | 10.240.79.128/25 | 10.240.79.129 – 10.240.79.254 | 10.240.79.255 |
| 161 | 10.240.80.0/25 | 10.240.80.1 – 10.240.80.126 | 10.240.80.127 |
| 162 | 10.240.80.128/25 | 10.240.80.129 – 10.240.80.254 | 10.240.80.255 |
| 163 | 10.240.81.0/25 | 10.240.81.1 – 10.240.81.126 | 10.240.81.127 |
| 164 | 10.240.81.128/25 | 10.240.81.129 – 10.240.81.254 | 10.240.81.255 |
| 165 | 10.240.82.0/25 | 10.240.82.1 – 10.240.82.126 | 10.240.82.127 |
| 166 | 10.240.82.128/25 | 10.240.82.129 – 10.240.82.254 | 10.240.82.255 |
| 167 | 10.240.83.0/25 | 10.240.83.1 – 10.240.83.126 | 10.240.83.127 |
| 168 | 10.240.83.128/25 | 10.240.83.129 – 10.240.83.254 | 10.240.83.255 |
| 169 | 10.240.84.0/25 | 10.240.84.1 – 10.240.84.126 | 10.240.84.127 |
| 170 | 10.240.84.128/25 | 10.240.84.129 – 10.240.84.254 | 10.240.84.255 |
| 171 | 10.240.85.0/25 | 10.240.85.1 – 10.240.85.126 | 10.240.85.127 |
| 172 | 10.240.85.128/25 | 10.240.85.129 – 10.240.85.254 | 10.240.85.255 |
| 173 | 10.240.86.0/25 | 10.240.86.1 – 10.240.86.126 | 10.240.86.127 |
| 174 | 10.240.86.128/25 | 10.240.86.129 – 10.240.86.254 | 10.240.86.255 |
| 175 | 10.240.87.0/25 | 10.240.87.1 – 10.240.87.126 | 10.240.87.127 |
| 176 | 10.240.87.128/25 | 10.240.87.129 – 10.240.87.254 | 10.240.87.255 |
| 177 | 10.240.88.0/25 | 10.240.88.1 – 10.240.88.126 | 10.240.88.127 |
| 178 | 10.240.88.128/25 | 10.240.88.129 – 10.240.88.254 | 10.240.88.255 |
| 179 | 10.240.89.0/25 | 10.240.89.1 – 10.240.89.126 | 10.240.89.127 |
| 180 | 10.240.89.128/25 | 10.240.89.129 – 10.240.89.254 | 10.240.89.255 |
| 181 | 10.240.90.0/25 | 10.240.90.1 – 10.240.90.126 | 10.240.90.127 |
| 182 | 10.240.90.128/25 | 10.240.90.129 – 10.240.90.254 | 10.240.90.255 |
| 183 | 10.240.91.0/25 | 10.240.91.1 – 10.240.91.126 | 10.240.91.127 |
| 184 | 10.240.91.128/25 | 10.240.91.129 – 10.240.91.254 | 10.240.91.255 |
| 185 | 10.240.92.0/25 | 10.240.92.1 – 10.240.92.126 | 10.240.92.127 |
| 186 | 10.240.92.128/25 | 10.240.92.129 – 10.240.92.254 | 10.240.92.255 |
| 187 | 10.240.93.0/25 | 10.240.93.1 – 10.240.93.126 | 10.240.93.127 |
| 188 | 10.240.93.128/25 | 10.240.93.129 – 10.240.93.254 | 10.240.93.255 |
| 189 | 10.240.94.0/25 | 10.240.94.1 – 10.240.94.126 | 10.240.94.127 |
| 190 | 10.240.94.128/25 | 10.240.94.129 – 10.240.94.254 | 10.240.94.255 |
| 191 | 10.240.95.0/25 | 10.240.95.1 – 10.240.95.126 | 10.240.95.127 |
| 192 | 10.240.95.128/25 | 10.240.95.129 – 10.240.95.254 | 10.240.95.255 |
| 193 | 10.240.96.0/25 | 10.240.96.1 – 10.240.96.126 | 10.240.96.127 |
| 194 | 10.240.96.128/25 | 10.240.96.129 – 10.240.96.254 | 10.240.96.255 |
| 195 | 10.240.97.0/25 | 10.240.97.1 – 10.240.97.126 | 10.240.97.127 |
| 196 | 10.240.97.128/25 | 10.240.97.129 – 10.240.97.254 | 10.240.97.255 |
| 197 | 10.240.98.0/25 | 10.240.98.1 – 10.240.98.126 | 10.240.98.127 |
| 198 | 10.240.98.128/25 | 10.240.98.129 – 10.240.98.254 | 10.240.98.255 |
| 199 | 10.240.99.0/25 | 10.240.99.1 – 10.240.99.126 | 10.240.99.127 |
| 200 | 10.240.99.128/25 | 10.240.99.129 – 10.240.99.254 | 10.240.99.255 |
| 201 | 10.240.100.0/25 | 10.240.100.1 – 10.240.100.126 | 10.240.100.127 |
| 202 | 10.240.100.128/25 | 10.240.100.129 – 10.240.100.254 | 10.240.100.255 |
| 203 | 10.240.101.0/25 | 10.240.101.1 – 10.240.101.126 | 10.240.101.127 |
| 204 | 10.240.101.128/25 | 10.240.101.129 – 10.240.101.254 | 10.240.101.255 |
| 205 | 10.240.102.0/25 | 10.240.102.1 – 10.240.102.126 | 10.240.102.127 |
| 206 | 10.240.102.128/25 | 10.240.102.129 – 10.240.102.254 | 10.240.102.255 |
| 207 | 10.240.103.0/25 | 10.240.103.1 – 10.240.103.126 | 10.240.103.127 |
| 208 | 10.240.103.128/25 | 10.240.103.129 – 10.240.103.254 | 10.240.103.255 |
| 209 | 10.240.104.0/25 | 10.240.104.1 – 10.240.104.126 | 10.240.104.127 |
| 210 | 10.240.104.128/25 | 10.240.104.129 – 10.240.104.254 | 10.240.104.255 |
| 211 | 10.240.105.0/25 | 10.240.105.1 – 10.240.105.126 | 10.240.105.127 |
| 212 | 10.240.105.128/25 | 10.240.105.129 – 10.240.105.254 | 10.240.105.255 |
| 213 | 10.240.106.0/25 | 10.240.106.1 – 10.240.106.126 | 10.240.106.127 |
| 214 | 10.240.106.128/25 | 10.240.106.129 – 10.240.106.254 | 10.240.106.255 |
| 215 | 10.240.107.0/25 | 10.240.107.1 – 10.240.107.126 | 10.240.107.127 |
| 216 | 10.240.107.128/25 | 10.240.107.129 – 10.240.107.254 | 10.240.107.255 |
| 217 | 10.240.108.0/25 | 10.240.108.1 – 10.240.108.126 | 10.240.108.127 |
| 218 | 10.240.108.128/25 | 10.240.108.129 – 10.240.108.254 | 10.240.108.255 |
| 219 | 10.240.109.0/25 | 10.240.109.1 – 10.240.109.126 | 10.240.109.127 |
| 220 | 10.240.109.128/25 | 10.240.109.129 – 10.240.109.254 | 10.240.109.255 |
| 221 | 10.240.110.0/25 | 10.240.110.1 – 10.240.110.126 | 10.240.110.127 |
| 222 | 10.240.110.128/25 | 10.240.110.129 – 10.240.110.254 | 10.240.110.255 |
| 223 | 10.240.111.0/25 | 10.240.111.1 – 10.240.111.126 | 10.240.111.127 |
| 224 | 10.240.111.128/25 | 10.240.111.129 – 10.240.111.254 | 10.240.111.255 |
| 225 | 10.240.112.0/25 | 10.240.112.1 – 10.240.112.126 | 10.240.112.127 |
| 226 | 10.240.112.128/25 | 10.240.112.129 – 10.240.112.254 | 10.240.112.255 |
| 227 | 10.240.113.0/25 | 10.240.113.1 – 10.240.113.126 | 10.240.113.127 |
| 228 | 10.240.113.128/25 | 10.240.113.129 – 10.240.113.254 | 10.240.113.255 |
| 229 | 10.240.114.0/25 | 10.240.114.1 – 10.240.114.126 | 10.240.114.127 |
| 230 | 10.240.114.128/25 | 10.240.114.129 – 10.240.114.254 | 10.240.114.255 |
| 231 | 10.240.115.0/25 | 10.240.115.1 – 10.240.115.126 | 10.240.115.127 |
| 232 | 10.240.115.128/25 | 10.240.115.129 – 10.240.115.254 | 10.240.115.255 |
| 233 | 10.240.116.0/25 | 10.240.116.1 – 10.240.116.126 | 10.240.116.127 |
| 234 | 10.240.116.128/25 | 10.240.116.129 – 10.240.116.254 | 10.240.116.255 |
| 235 | 10.240.117.0/25 | 10.240.117.1 – 10.240.117.126 | 10.240.117.127 |
| 236 | 10.240.117.128/25 | 10.240.117.129 – 10.240.117.254 | 10.240.117.255 |
| 237 | 10.240.118.0/25 | 10.240.118.1 – 10.240.118.126 | 10.240.118.127 |
| 238 | 10.240.118.128/25 | 10.240.118.129 – 10.240.118.254 | 10.240.118.255 |
| 239 | 10.240.119.0/25 | 10.240.119.1 – 10.240.119.126 | 10.240.119.127 |
| 240 | 10.240.119.128/25 | 10.240.119.129 – 10.240.119.254 | 10.240.119.255 |
| 241 | 10.240.120.0/25 | 10.240.120.1 – 10.240.120.126 | 10.240.120.127 |
| 242 | 10.240.120.128/25 | 10.240.120.129 – 10.240.120.254 | 10.240.120.255 |
| 243 | 10.240.121.0/25 | 10.240.121.1 – 10.240.121.126 | 10.240.121.127 |
| 244 | 10.240.121.128/25 | 10.240.121.129 – 10.240.121.254 | 10.240.121.255 |
| 245 | 10.240.122.0/25 | 10.240.122.1 – 10.240.122.126 | 10.240.122.127 |
| 246 | 10.240.122.128/25 | 10.240.122.129 – 10.240.122.254 | 10.240.122.255 |
| 247 | 10.240.123.0/25 | 10.240.123.1 – 10.240.123.126 | 10.240.123.127 |
| 248 | 10.240.123.128/25 | 10.240.123.129 – 10.240.123.254 | 10.240.123.255 |
| 249 | 10.240.124.0/25 | 10.240.124.1 – 10.240.124.126 | 10.240.124.127 |
| 250 | 10.240.124.128/25 | 10.240.124.129 – 10.240.124.254 | 10.240.124.255 |
| 251 | 10.240.125.0/25 | 10.240.125.1 – 10.240.125.126 | 10.240.125.127 |
| 252 | 10.240.125.128/25 | 10.240.125.129 – 10.240.125.254 | 10.240.125.255 |
| 253 | 10.240.126.0/25 | 10.240.126.1 – 10.240.126.126 | 10.240.126.127 |
| 254 | 10.240.126.128/25 | 10.240.126.129 – 10.240.126.254 | 10.240.126.255 |
| 255 | 10.240.127.0/25 | 10.240.127.1 – 10.240.127.126 | 10.240.127.127 |
| 256 | 10.240.127.128/25 | 10.240.127.129 – 10.240.127.254 | 10.240.127.255 |
showing 256 of 8,192
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.