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)10.87.28.0/22
network10.87.28.0/22
broadcast10.87.31.255
first host10.87.28.1
last host10.87.31.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.87.28.0/22
address00001010.01010111.00011100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01010111.00011100.00000000
broadcast00001010.01010111.00011111.11111111
green = network part, grey = host part
hex0x0a571c00
decimal173480960
reverse dns0.28.87.10.in-addr.arpa
ipv4-mapped::ffff:a57:1c00
/22 split into /30 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.87.28.0/30 | 10.87.28.1 – 10.87.28.2 | 10.87.28.3 |
| 2 | 10.87.28.4/30 | 10.87.28.5 – 10.87.28.6 | 10.87.28.7 |
| 3 | 10.87.28.8/30 | 10.87.28.9 – 10.87.28.10 | 10.87.28.11 |
| 4 | 10.87.28.12/30 | 10.87.28.13 – 10.87.28.14 | 10.87.28.15 |
| 5 | 10.87.28.16/30 | 10.87.28.17 – 10.87.28.18 | 10.87.28.19 |
| 6 | 10.87.28.20/30 | 10.87.28.21 – 10.87.28.22 | 10.87.28.23 |
| 7 | 10.87.28.24/30 | 10.87.28.25 – 10.87.28.26 | 10.87.28.27 |
| 8 | 10.87.28.28/30 | 10.87.28.29 – 10.87.28.30 | 10.87.28.31 |
| 9 | 10.87.28.32/30 | 10.87.28.33 – 10.87.28.34 | 10.87.28.35 |
| 10 | 10.87.28.36/30 | 10.87.28.37 – 10.87.28.38 | 10.87.28.39 |
| 11 | 10.87.28.40/30 | 10.87.28.41 – 10.87.28.42 | 10.87.28.43 |
| 12 | 10.87.28.44/30 | 10.87.28.45 – 10.87.28.46 | 10.87.28.47 |
| 13 | 10.87.28.48/30 | 10.87.28.49 – 10.87.28.50 | 10.87.28.51 |
| 14 | 10.87.28.52/30 | 10.87.28.53 – 10.87.28.54 | 10.87.28.55 |
| 15 | 10.87.28.56/30 | 10.87.28.57 – 10.87.28.58 | 10.87.28.59 |
| 16 | 10.87.28.60/30 | 10.87.28.61 – 10.87.28.62 | 10.87.28.63 |
| 17 | 10.87.28.64/30 | 10.87.28.65 – 10.87.28.66 | 10.87.28.67 |
| 18 | 10.87.28.68/30 | 10.87.28.69 – 10.87.28.70 | 10.87.28.71 |
| 19 | 10.87.28.72/30 | 10.87.28.73 – 10.87.28.74 | 10.87.28.75 |
| 20 | 10.87.28.76/30 | 10.87.28.77 – 10.87.28.78 | 10.87.28.79 |
| 21 | 10.87.28.80/30 | 10.87.28.81 – 10.87.28.82 | 10.87.28.83 |
| 22 | 10.87.28.84/30 | 10.87.28.85 – 10.87.28.86 | 10.87.28.87 |
| 23 | 10.87.28.88/30 | 10.87.28.89 – 10.87.28.90 | 10.87.28.91 |
| 24 | 10.87.28.92/30 | 10.87.28.93 – 10.87.28.94 | 10.87.28.95 |
| 25 | 10.87.28.96/30 | 10.87.28.97 – 10.87.28.98 | 10.87.28.99 |
| 26 | 10.87.28.100/30 | 10.87.28.101 – 10.87.28.102 | 10.87.28.103 |
| 27 | 10.87.28.104/30 | 10.87.28.105 – 10.87.28.106 | 10.87.28.107 |
| 28 | 10.87.28.108/30 | 10.87.28.109 – 10.87.28.110 | 10.87.28.111 |
| 29 | 10.87.28.112/30 | 10.87.28.113 – 10.87.28.114 | 10.87.28.115 |
| 30 | 10.87.28.116/30 | 10.87.28.117 – 10.87.28.118 | 10.87.28.119 |
| 31 | 10.87.28.120/30 | 10.87.28.121 – 10.87.28.122 | 10.87.28.123 |
| 32 | 10.87.28.124/30 | 10.87.28.125 – 10.87.28.126 | 10.87.28.127 |
| 33 | 10.87.28.128/30 | 10.87.28.129 – 10.87.28.130 | 10.87.28.131 |
| 34 | 10.87.28.132/30 | 10.87.28.133 – 10.87.28.134 | 10.87.28.135 |
| 35 | 10.87.28.136/30 | 10.87.28.137 – 10.87.28.138 | 10.87.28.139 |
| 36 | 10.87.28.140/30 | 10.87.28.141 – 10.87.28.142 | 10.87.28.143 |
| 37 | 10.87.28.144/30 | 10.87.28.145 – 10.87.28.146 | 10.87.28.147 |
| 38 | 10.87.28.148/30 | 10.87.28.149 – 10.87.28.150 | 10.87.28.151 |
| 39 | 10.87.28.152/30 | 10.87.28.153 – 10.87.28.154 | 10.87.28.155 |
| 40 | 10.87.28.156/30 | 10.87.28.157 – 10.87.28.158 | 10.87.28.159 |
| 41 | 10.87.28.160/30 | 10.87.28.161 – 10.87.28.162 | 10.87.28.163 |
| 42 | 10.87.28.164/30 | 10.87.28.165 – 10.87.28.166 | 10.87.28.167 |
| 43 | 10.87.28.168/30 | 10.87.28.169 – 10.87.28.170 | 10.87.28.171 |
| 44 | 10.87.28.172/30 | 10.87.28.173 – 10.87.28.174 | 10.87.28.175 |
| 45 | 10.87.28.176/30 | 10.87.28.177 – 10.87.28.178 | 10.87.28.179 |
| 46 | 10.87.28.180/30 | 10.87.28.181 – 10.87.28.182 | 10.87.28.183 |
| 47 | 10.87.28.184/30 | 10.87.28.185 – 10.87.28.186 | 10.87.28.187 |
| 48 | 10.87.28.188/30 | 10.87.28.189 – 10.87.28.190 | 10.87.28.191 |
| 49 | 10.87.28.192/30 | 10.87.28.193 – 10.87.28.194 | 10.87.28.195 |
| 50 | 10.87.28.196/30 | 10.87.28.197 – 10.87.28.198 | 10.87.28.199 |
| 51 | 10.87.28.200/30 | 10.87.28.201 – 10.87.28.202 | 10.87.28.203 |
| 52 | 10.87.28.204/30 | 10.87.28.205 – 10.87.28.206 | 10.87.28.207 |
| 53 | 10.87.28.208/30 | 10.87.28.209 – 10.87.28.210 | 10.87.28.211 |
| 54 | 10.87.28.212/30 | 10.87.28.213 – 10.87.28.214 | 10.87.28.215 |
| 55 | 10.87.28.216/30 | 10.87.28.217 – 10.87.28.218 | 10.87.28.219 |
| 56 | 10.87.28.220/30 | 10.87.28.221 – 10.87.28.222 | 10.87.28.223 |
| 57 | 10.87.28.224/30 | 10.87.28.225 – 10.87.28.226 | 10.87.28.227 |
| 58 | 10.87.28.228/30 | 10.87.28.229 – 10.87.28.230 | 10.87.28.231 |
| 59 | 10.87.28.232/30 | 10.87.28.233 – 10.87.28.234 | 10.87.28.235 |
| 60 | 10.87.28.236/30 | 10.87.28.237 – 10.87.28.238 | 10.87.28.239 |
| 61 | 10.87.28.240/30 | 10.87.28.241 – 10.87.28.242 | 10.87.28.243 |
| 62 | 10.87.28.244/30 | 10.87.28.245 – 10.87.28.246 | 10.87.28.247 |
| 63 | 10.87.28.248/30 | 10.87.28.249 – 10.87.28.250 | 10.87.28.251 |
| 64 | 10.87.28.252/30 | 10.87.28.253 – 10.87.28.254 | 10.87.28.255 |
| 65 | 10.87.29.0/30 | 10.87.29.1 – 10.87.29.2 | 10.87.29.3 |
| 66 | 10.87.29.4/30 | 10.87.29.5 – 10.87.29.6 | 10.87.29.7 |
| 67 | 10.87.29.8/30 | 10.87.29.9 – 10.87.29.10 | 10.87.29.11 |
| 68 | 10.87.29.12/30 | 10.87.29.13 – 10.87.29.14 | 10.87.29.15 |
| 69 | 10.87.29.16/30 | 10.87.29.17 – 10.87.29.18 | 10.87.29.19 |
| 70 | 10.87.29.20/30 | 10.87.29.21 – 10.87.29.22 | 10.87.29.23 |
| 71 | 10.87.29.24/30 | 10.87.29.25 – 10.87.29.26 | 10.87.29.27 |
| 72 | 10.87.29.28/30 | 10.87.29.29 – 10.87.29.30 | 10.87.29.31 |
| 73 | 10.87.29.32/30 | 10.87.29.33 – 10.87.29.34 | 10.87.29.35 |
| 74 | 10.87.29.36/30 | 10.87.29.37 – 10.87.29.38 | 10.87.29.39 |
| 75 | 10.87.29.40/30 | 10.87.29.41 – 10.87.29.42 | 10.87.29.43 |
| 76 | 10.87.29.44/30 | 10.87.29.45 – 10.87.29.46 | 10.87.29.47 |
| 77 | 10.87.29.48/30 | 10.87.29.49 – 10.87.29.50 | 10.87.29.51 |
| 78 | 10.87.29.52/30 | 10.87.29.53 – 10.87.29.54 | 10.87.29.55 |
| 79 | 10.87.29.56/30 | 10.87.29.57 – 10.87.29.58 | 10.87.29.59 |
| 80 | 10.87.29.60/30 | 10.87.29.61 – 10.87.29.62 | 10.87.29.63 |
| 81 | 10.87.29.64/30 | 10.87.29.65 – 10.87.29.66 | 10.87.29.67 |
| 82 | 10.87.29.68/30 | 10.87.29.69 – 10.87.29.70 | 10.87.29.71 |
| 83 | 10.87.29.72/30 | 10.87.29.73 – 10.87.29.74 | 10.87.29.75 |
| 84 | 10.87.29.76/30 | 10.87.29.77 – 10.87.29.78 | 10.87.29.79 |
| 85 | 10.87.29.80/30 | 10.87.29.81 – 10.87.29.82 | 10.87.29.83 |
| 86 | 10.87.29.84/30 | 10.87.29.85 – 10.87.29.86 | 10.87.29.87 |
| 87 | 10.87.29.88/30 | 10.87.29.89 – 10.87.29.90 | 10.87.29.91 |
| 88 | 10.87.29.92/30 | 10.87.29.93 – 10.87.29.94 | 10.87.29.95 |
| 89 | 10.87.29.96/30 | 10.87.29.97 – 10.87.29.98 | 10.87.29.99 |
| 90 | 10.87.29.100/30 | 10.87.29.101 – 10.87.29.102 | 10.87.29.103 |
| 91 | 10.87.29.104/30 | 10.87.29.105 – 10.87.29.106 | 10.87.29.107 |
| 92 | 10.87.29.108/30 | 10.87.29.109 – 10.87.29.110 | 10.87.29.111 |
| 93 | 10.87.29.112/30 | 10.87.29.113 – 10.87.29.114 | 10.87.29.115 |
| 94 | 10.87.29.116/30 | 10.87.29.117 – 10.87.29.118 | 10.87.29.119 |
| 95 | 10.87.29.120/30 | 10.87.29.121 – 10.87.29.122 | 10.87.29.123 |
| 96 | 10.87.29.124/30 | 10.87.29.125 – 10.87.29.126 | 10.87.29.127 |
| 97 | 10.87.29.128/30 | 10.87.29.129 – 10.87.29.130 | 10.87.29.131 |
| 98 | 10.87.29.132/30 | 10.87.29.133 – 10.87.29.134 | 10.87.29.135 |
| 99 | 10.87.29.136/30 | 10.87.29.137 – 10.87.29.138 | 10.87.29.139 |
| 100 | 10.87.29.140/30 | 10.87.29.141 – 10.87.29.142 | 10.87.29.143 |
| 101 | 10.87.29.144/30 | 10.87.29.145 – 10.87.29.146 | 10.87.29.147 |
| 102 | 10.87.29.148/30 | 10.87.29.149 – 10.87.29.150 | 10.87.29.151 |
| 103 | 10.87.29.152/30 | 10.87.29.153 – 10.87.29.154 | 10.87.29.155 |
| 104 | 10.87.29.156/30 | 10.87.29.157 – 10.87.29.158 | 10.87.29.159 |
| 105 | 10.87.29.160/30 | 10.87.29.161 – 10.87.29.162 | 10.87.29.163 |
| 106 | 10.87.29.164/30 | 10.87.29.165 – 10.87.29.166 | 10.87.29.167 |
| 107 | 10.87.29.168/30 | 10.87.29.169 – 10.87.29.170 | 10.87.29.171 |
| 108 | 10.87.29.172/30 | 10.87.29.173 – 10.87.29.174 | 10.87.29.175 |
| 109 | 10.87.29.176/30 | 10.87.29.177 – 10.87.29.178 | 10.87.29.179 |
| 110 | 10.87.29.180/30 | 10.87.29.181 – 10.87.29.182 | 10.87.29.183 |
| 111 | 10.87.29.184/30 | 10.87.29.185 – 10.87.29.186 | 10.87.29.187 |
| 112 | 10.87.29.188/30 | 10.87.29.189 – 10.87.29.190 | 10.87.29.191 |
| 113 | 10.87.29.192/30 | 10.87.29.193 – 10.87.29.194 | 10.87.29.195 |
| 114 | 10.87.29.196/30 | 10.87.29.197 – 10.87.29.198 | 10.87.29.199 |
| 115 | 10.87.29.200/30 | 10.87.29.201 – 10.87.29.202 | 10.87.29.203 |
| 116 | 10.87.29.204/30 | 10.87.29.205 – 10.87.29.206 | 10.87.29.207 |
| 117 | 10.87.29.208/30 | 10.87.29.209 – 10.87.29.210 | 10.87.29.211 |
| 118 | 10.87.29.212/30 | 10.87.29.213 – 10.87.29.214 | 10.87.29.215 |
| 119 | 10.87.29.216/30 | 10.87.29.217 – 10.87.29.218 | 10.87.29.219 |
| 120 | 10.87.29.220/30 | 10.87.29.221 – 10.87.29.222 | 10.87.29.223 |
| 121 | 10.87.29.224/30 | 10.87.29.225 – 10.87.29.226 | 10.87.29.227 |
| 122 | 10.87.29.228/30 | 10.87.29.229 – 10.87.29.230 | 10.87.29.231 |
| 123 | 10.87.29.232/30 | 10.87.29.233 – 10.87.29.234 | 10.87.29.235 |
| 124 | 10.87.29.236/30 | 10.87.29.237 – 10.87.29.238 | 10.87.29.239 |
| 125 | 10.87.29.240/30 | 10.87.29.241 – 10.87.29.242 | 10.87.29.243 |
| 126 | 10.87.29.244/30 | 10.87.29.245 – 10.87.29.246 | 10.87.29.247 |
| 127 | 10.87.29.248/30 | 10.87.29.249 – 10.87.29.250 | 10.87.29.251 |
| 128 | 10.87.29.252/30 | 10.87.29.253 – 10.87.29.254 | 10.87.29.255 |
| 129 | 10.87.30.0/30 | 10.87.30.1 – 10.87.30.2 | 10.87.30.3 |
| 130 | 10.87.30.4/30 | 10.87.30.5 – 10.87.30.6 | 10.87.30.7 |
| 131 | 10.87.30.8/30 | 10.87.30.9 – 10.87.30.10 | 10.87.30.11 |
| 132 | 10.87.30.12/30 | 10.87.30.13 – 10.87.30.14 | 10.87.30.15 |
| 133 | 10.87.30.16/30 | 10.87.30.17 – 10.87.30.18 | 10.87.30.19 |
| 134 | 10.87.30.20/30 | 10.87.30.21 – 10.87.30.22 | 10.87.30.23 |
| 135 | 10.87.30.24/30 | 10.87.30.25 – 10.87.30.26 | 10.87.30.27 |
| 136 | 10.87.30.28/30 | 10.87.30.29 – 10.87.30.30 | 10.87.30.31 |
| 137 | 10.87.30.32/30 | 10.87.30.33 – 10.87.30.34 | 10.87.30.35 |
| 138 | 10.87.30.36/30 | 10.87.30.37 – 10.87.30.38 | 10.87.30.39 |
| 139 | 10.87.30.40/30 | 10.87.30.41 – 10.87.30.42 | 10.87.30.43 |
| 140 | 10.87.30.44/30 | 10.87.30.45 – 10.87.30.46 | 10.87.30.47 |
| 141 | 10.87.30.48/30 | 10.87.30.49 – 10.87.30.50 | 10.87.30.51 |
| 142 | 10.87.30.52/30 | 10.87.30.53 – 10.87.30.54 | 10.87.30.55 |
| 143 | 10.87.30.56/30 | 10.87.30.57 – 10.87.30.58 | 10.87.30.59 |
| 144 | 10.87.30.60/30 | 10.87.30.61 – 10.87.30.62 | 10.87.30.63 |
| 145 | 10.87.30.64/30 | 10.87.30.65 – 10.87.30.66 | 10.87.30.67 |
| 146 | 10.87.30.68/30 | 10.87.30.69 – 10.87.30.70 | 10.87.30.71 |
| 147 | 10.87.30.72/30 | 10.87.30.73 – 10.87.30.74 | 10.87.30.75 |
| 148 | 10.87.30.76/30 | 10.87.30.77 – 10.87.30.78 | 10.87.30.79 |
| 149 | 10.87.30.80/30 | 10.87.30.81 – 10.87.30.82 | 10.87.30.83 |
| 150 | 10.87.30.84/30 | 10.87.30.85 – 10.87.30.86 | 10.87.30.87 |
| 151 | 10.87.30.88/30 | 10.87.30.89 – 10.87.30.90 | 10.87.30.91 |
| 152 | 10.87.30.92/30 | 10.87.30.93 – 10.87.30.94 | 10.87.30.95 |
| 153 | 10.87.30.96/30 | 10.87.30.97 – 10.87.30.98 | 10.87.30.99 |
| 154 | 10.87.30.100/30 | 10.87.30.101 – 10.87.30.102 | 10.87.30.103 |
| 155 | 10.87.30.104/30 | 10.87.30.105 – 10.87.30.106 | 10.87.30.107 |
| 156 | 10.87.30.108/30 | 10.87.30.109 – 10.87.30.110 | 10.87.30.111 |
| 157 | 10.87.30.112/30 | 10.87.30.113 – 10.87.30.114 | 10.87.30.115 |
| 158 | 10.87.30.116/30 | 10.87.30.117 – 10.87.30.118 | 10.87.30.119 |
| 159 | 10.87.30.120/30 | 10.87.30.121 – 10.87.30.122 | 10.87.30.123 |
| 160 | 10.87.30.124/30 | 10.87.30.125 – 10.87.30.126 | 10.87.30.127 |
| 161 | 10.87.30.128/30 | 10.87.30.129 – 10.87.30.130 | 10.87.30.131 |
| 162 | 10.87.30.132/30 | 10.87.30.133 – 10.87.30.134 | 10.87.30.135 |
| 163 | 10.87.30.136/30 | 10.87.30.137 – 10.87.30.138 | 10.87.30.139 |
| 164 | 10.87.30.140/30 | 10.87.30.141 – 10.87.30.142 | 10.87.30.143 |
| 165 | 10.87.30.144/30 | 10.87.30.145 – 10.87.30.146 | 10.87.30.147 |
| 166 | 10.87.30.148/30 | 10.87.30.149 – 10.87.30.150 | 10.87.30.151 |
| 167 | 10.87.30.152/30 | 10.87.30.153 – 10.87.30.154 | 10.87.30.155 |
| 168 | 10.87.30.156/30 | 10.87.30.157 – 10.87.30.158 | 10.87.30.159 |
| 169 | 10.87.30.160/30 | 10.87.30.161 – 10.87.30.162 | 10.87.30.163 |
| 170 | 10.87.30.164/30 | 10.87.30.165 – 10.87.30.166 | 10.87.30.167 |
| 171 | 10.87.30.168/30 | 10.87.30.169 – 10.87.30.170 | 10.87.30.171 |
| 172 | 10.87.30.172/30 | 10.87.30.173 – 10.87.30.174 | 10.87.30.175 |
| 173 | 10.87.30.176/30 | 10.87.30.177 – 10.87.30.178 | 10.87.30.179 |
| 174 | 10.87.30.180/30 | 10.87.30.181 – 10.87.30.182 | 10.87.30.183 |
| 175 | 10.87.30.184/30 | 10.87.30.185 – 10.87.30.186 | 10.87.30.187 |
| 176 | 10.87.30.188/30 | 10.87.30.189 – 10.87.30.190 | 10.87.30.191 |
| 177 | 10.87.30.192/30 | 10.87.30.193 – 10.87.30.194 | 10.87.30.195 |
| 178 | 10.87.30.196/30 | 10.87.30.197 – 10.87.30.198 | 10.87.30.199 |
| 179 | 10.87.30.200/30 | 10.87.30.201 – 10.87.30.202 | 10.87.30.203 |
| 180 | 10.87.30.204/30 | 10.87.30.205 – 10.87.30.206 | 10.87.30.207 |
| 181 | 10.87.30.208/30 | 10.87.30.209 – 10.87.30.210 | 10.87.30.211 |
| 182 | 10.87.30.212/30 | 10.87.30.213 – 10.87.30.214 | 10.87.30.215 |
| 183 | 10.87.30.216/30 | 10.87.30.217 – 10.87.30.218 | 10.87.30.219 |
| 184 | 10.87.30.220/30 | 10.87.30.221 – 10.87.30.222 | 10.87.30.223 |
| 185 | 10.87.30.224/30 | 10.87.30.225 – 10.87.30.226 | 10.87.30.227 |
| 186 | 10.87.30.228/30 | 10.87.30.229 – 10.87.30.230 | 10.87.30.231 |
| 187 | 10.87.30.232/30 | 10.87.30.233 – 10.87.30.234 | 10.87.30.235 |
| 188 | 10.87.30.236/30 | 10.87.30.237 – 10.87.30.238 | 10.87.30.239 |
| 189 | 10.87.30.240/30 | 10.87.30.241 – 10.87.30.242 | 10.87.30.243 |
| 190 | 10.87.30.244/30 | 10.87.30.245 – 10.87.30.246 | 10.87.30.247 |
| 191 | 10.87.30.248/30 | 10.87.30.249 – 10.87.30.250 | 10.87.30.251 |
| 192 | 10.87.30.252/30 | 10.87.30.253 – 10.87.30.254 | 10.87.30.255 |
| 193 | 10.87.31.0/30 | 10.87.31.1 – 10.87.31.2 | 10.87.31.3 |
| 194 | 10.87.31.4/30 | 10.87.31.5 – 10.87.31.6 | 10.87.31.7 |
| 195 | 10.87.31.8/30 | 10.87.31.9 – 10.87.31.10 | 10.87.31.11 |
| 196 | 10.87.31.12/30 | 10.87.31.13 – 10.87.31.14 | 10.87.31.15 |
| 197 | 10.87.31.16/30 | 10.87.31.17 – 10.87.31.18 | 10.87.31.19 |
| 198 | 10.87.31.20/30 | 10.87.31.21 – 10.87.31.22 | 10.87.31.23 |
| 199 | 10.87.31.24/30 | 10.87.31.25 – 10.87.31.26 | 10.87.31.27 |
| 200 | 10.87.31.28/30 | 10.87.31.29 – 10.87.31.30 | 10.87.31.31 |
| 201 | 10.87.31.32/30 | 10.87.31.33 – 10.87.31.34 | 10.87.31.35 |
| 202 | 10.87.31.36/30 | 10.87.31.37 – 10.87.31.38 | 10.87.31.39 |
| 203 | 10.87.31.40/30 | 10.87.31.41 – 10.87.31.42 | 10.87.31.43 |
| 204 | 10.87.31.44/30 | 10.87.31.45 – 10.87.31.46 | 10.87.31.47 |
| 205 | 10.87.31.48/30 | 10.87.31.49 – 10.87.31.50 | 10.87.31.51 |
| 206 | 10.87.31.52/30 | 10.87.31.53 – 10.87.31.54 | 10.87.31.55 |
| 207 | 10.87.31.56/30 | 10.87.31.57 – 10.87.31.58 | 10.87.31.59 |
| 208 | 10.87.31.60/30 | 10.87.31.61 – 10.87.31.62 | 10.87.31.63 |
| 209 | 10.87.31.64/30 | 10.87.31.65 – 10.87.31.66 | 10.87.31.67 |
| 210 | 10.87.31.68/30 | 10.87.31.69 – 10.87.31.70 | 10.87.31.71 |
| 211 | 10.87.31.72/30 | 10.87.31.73 – 10.87.31.74 | 10.87.31.75 |
| 212 | 10.87.31.76/30 | 10.87.31.77 – 10.87.31.78 | 10.87.31.79 |
| 213 | 10.87.31.80/30 | 10.87.31.81 – 10.87.31.82 | 10.87.31.83 |
| 214 | 10.87.31.84/30 | 10.87.31.85 – 10.87.31.86 | 10.87.31.87 |
| 215 | 10.87.31.88/30 | 10.87.31.89 – 10.87.31.90 | 10.87.31.91 |
| 216 | 10.87.31.92/30 | 10.87.31.93 – 10.87.31.94 | 10.87.31.95 |
| 217 | 10.87.31.96/30 | 10.87.31.97 – 10.87.31.98 | 10.87.31.99 |
| 218 | 10.87.31.100/30 | 10.87.31.101 – 10.87.31.102 | 10.87.31.103 |
| 219 | 10.87.31.104/30 | 10.87.31.105 – 10.87.31.106 | 10.87.31.107 |
| 220 | 10.87.31.108/30 | 10.87.31.109 – 10.87.31.110 | 10.87.31.111 |
| 221 | 10.87.31.112/30 | 10.87.31.113 – 10.87.31.114 | 10.87.31.115 |
| 222 | 10.87.31.116/30 | 10.87.31.117 – 10.87.31.118 | 10.87.31.119 |
| 223 | 10.87.31.120/30 | 10.87.31.121 – 10.87.31.122 | 10.87.31.123 |
| 224 | 10.87.31.124/30 | 10.87.31.125 – 10.87.31.126 | 10.87.31.127 |
| 225 | 10.87.31.128/30 | 10.87.31.129 – 10.87.31.130 | 10.87.31.131 |
| 226 | 10.87.31.132/30 | 10.87.31.133 – 10.87.31.134 | 10.87.31.135 |
| 227 | 10.87.31.136/30 | 10.87.31.137 – 10.87.31.138 | 10.87.31.139 |
| 228 | 10.87.31.140/30 | 10.87.31.141 – 10.87.31.142 | 10.87.31.143 |
| 229 | 10.87.31.144/30 | 10.87.31.145 – 10.87.31.146 | 10.87.31.147 |
| 230 | 10.87.31.148/30 | 10.87.31.149 – 10.87.31.150 | 10.87.31.151 |
| 231 | 10.87.31.152/30 | 10.87.31.153 – 10.87.31.154 | 10.87.31.155 |
| 232 | 10.87.31.156/30 | 10.87.31.157 – 10.87.31.158 | 10.87.31.159 |
| 233 | 10.87.31.160/30 | 10.87.31.161 – 10.87.31.162 | 10.87.31.163 |
| 234 | 10.87.31.164/30 | 10.87.31.165 – 10.87.31.166 | 10.87.31.167 |
| 235 | 10.87.31.168/30 | 10.87.31.169 – 10.87.31.170 | 10.87.31.171 |
| 236 | 10.87.31.172/30 | 10.87.31.173 – 10.87.31.174 | 10.87.31.175 |
| 237 | 10.87.31.176/30 | 10.87.31.177 – 10.87.31.178 | 10.87.31.179 |
| 238 | 10.87.31.180/30 | 10.87.31.181 – 10.87.31.182 | 10.87.31.183 |
| 239 | 10.87.31.184/30 | 10.87.31.185 – 10.87.31.186 | 10.87.31.187 |
| 240 | 10.87.31.188/30 | 10.87.31.189 – 10.87.31.190 | 10.87.31.191 |
| 241 | 10.87.31.192/30 | 10.87.31.193 – 10.87.31.194 | 10.87.31.195 |
| 242 | 10.87.31.196/30 | 10.87.31.197 – 10.87.31.198 | 10.87.31.199 |
| 243 | 10.87.31.200/30 | 10.87.31.201 – 10.87.31.202 | 10.87.31.203 |
| 244 | 10.87.31.204/30 | 10.87.31.205 – 10.87.31.206 | 10.87.31.207 |
| 245 | 10.87.31.208/30 | 10.87.31.209 – 10.87.31.210 | 10.87.31.211 |
| 246 | 10.87.31.212/30 | 10.87.31.213 – 10.87.31.214 | 10.87.31.215 |
| 247 | 10.87.31.216/30 | 10.87.31.217 – 10.87.31.218 | 10.87.31.219 |
| 248 | 10.87.31.220/30 | 10.87.31.221 – 10.87.31.222 | 10.87.31.223 |
| 249 | 10.87.31.224/30 | 10.87.31.225 – 10.87.31.226 | 10.87.31.227 |
| 250 | 10.87.31.228/30 | 10.87.31.229 – 10.87.31.230 | 10.87.31.231 |
| 251 | 10.87.31.232/30 | 10.87.31.233 – 10.87.31.234 | 10.87.31.235 |
| 252 | 10.87.31.236/30 | 10.87.31.237 – 10.87.31.238 | 10.87.31.239 |
| 253 | 10.87.31.240/30 | 10.87.31.241 – 10.87.31.242 | 10.87.31.243 |
| 254 | 10.87.31.244/30 | 10.87.31.245 – 10.87.31.246 | 10.87.31.247 |
| 255 | 10.87.31.248/30 | 10.87.31.249 – 10.87.31.250 | 10.87.31.251 |
| 256 | 10.87.31.252/30 | 10.87.31.253 – 10.87.31.254 | 10.87.31.255 |
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 /22 |
|---|---|---|---|---|
| /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 | - |
| /16 | 255.255.0.0 | 65,536 | 65,534 | - |
| /17 | 255.255.128.0 | 32,768 | 32,766 | - |
| /18 | 255.255.192.0 | 16,384 | 16,382 | - |
| /19 | 255.255.224.0 | 8,192 | 8,190 | - |
| /20 | 255.255.240.0 | 4,096 | 4,094 | - |
| /21 | 255.255.248.0 | 2,048 | 2,046 | - |
| /22 | 255.255.252.0 | 1,024 | 1,022 | 1 |
| /23 | 255.255.254.0 | 512 | 510 | 2 split → |
| /24 | 255.255.255.0 | 256 | 254 | 4 split → |
| /25 | 255.255.255.128 | 128 | 126 | 8 split → |
| /26 | 255.255.255.192 | 64 | 62 | 16 split → |
| /27 | 255.255.255.224 | 32 | 30 | 32 split → |
| /28 | 255.255.255.240 | 16 | 14 | 64 split → |
| /29 | 255.255.255.248 | 8 | 6 | 128 split → |
| /30 | 255.255.255.252 | 4 | 2 | 256 split → |
| /31 | 255.255.255.254 | 2 | 2 | 512 split → |
| /32 | 255.255.255.255 | 1 | 1 | 1,024 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.