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)10.7.240.0/21
network10.7.240.0/21
broadcast10.7.247.255
first host10.7.240.1
last host10.7.247.254
subnet mask255.255.248.0
wildcard0.0.7.255
addresses2,048
usable hosts2,046
classA
ipcalc 10.7.240.0/21
address00001010.00000111.11110000.00000000
subnet mask11111111.11111111.11111000.00000000
network00001010.00000111.11110000.00000000
broadcast00001010.00000111.11110111.11111111
green = network part, grey = host part
hex0x0a07f000
decimal168292352
reverse dns0.240.7.10.in-addr.arpa
ipv4-mapped::ffff:a07:f000
/21 split into /31 · 1,024 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.7.240.0/31 | 10.7.240.0 – 10.7.240.1 | 10.7.240.1 |
| 2 | 10.7.240.2/31 | 10.7.240.2 – 10.7.240.3 | 10.7.240.3 |
| 3 | 10.7.240.4/31 | 10.7.240.4 – 10.7.240.5 | 10.7.240.5 |
| 4 | 10.7.240.6/31 | 10.7.240.6 – 10.7.240.7 | 10.7.240.7 |
| 5 | 10.7.240.8/31 | 10.7.240.8 – 10.7.240.9 | 10.7.240.9 |
| 6 | 10.7.240.10/31 | 10.7.240.10 – 10.7.240.11 | 10.7.240.11 |
| 7 | 10.7.240.12/31 | 10.7.240.12 – 10.7.240.13 | 10.7.240.13 |
| 8 | 10.7.240.14/31 | 10.7.240.14 – 10.7.240.15 | 10.7.240.15 |
| 9 | 10.7.240.16/31 | 10.7.240.16 – 10.7.240.17 | 10.7.240.17 |
| 10 | 10.7.240.18/31 | 10.7.240.18 – 10.7.240.19 | 10.7.240.19 |
| 11 | 10.7.240.20/31 | 10.7.240.20 – 10.7.240.21 | 10.7.240.21 |
| 12 | 10.7.240.22/31 | 10.7.240.22 – 10.7.240.23 | 10.7.240.23 |
| 13 | 10.7.240.24/31 | 10.7.240.24 – 10.7.240.25 | 10.7.240.25 |
| 14 | 10.7.240.26/31 | 10.7.240.26 – 10.7.240.27 | 10.7.240.27 |
| 15 | 10.7.240.28/31 | 10.7.240.28 – 10.7.240.29 | 10.7.240.29 |
| 16 | 10.7.240.30/31 | 10.7.240.30 – 10.7.240.31 | 10.7.240.31 |
| 17 | 10.7.240.32/31 | 10.7.240.32 – 10.7.240.33 | 10.7.240.33 |
| 18 | 10.7.240.34/31 | 10.7.240.34 – 10.7.240.35 | 10.7.240.35 |
| 19 | 10.7.240.36/31 | 10.7.240.36 – 10.7.240.37 | 10.7.240.37 |
| 20 | 10.7.240.38/31 | 10.7.240.38 – 10.7.240.39 | 10.7.240.39 |
| 21 | 10.7.240.40/31 | 10.7.240.40 – 10.7.240.41 | 10.7.240.41 |
| 22 | 10.7.240.42/31 | 10.7.240.42 – 10.7.240.43 | 10.7.240.43 |
| 23 | 10.7.240.44/31 | 10.7.240.44 – 10.7.240.45 | 10.7.240.45 |
| 24 | 10.7.240.46/31 | 10.7.240.46 – 10.7.240.47 | 10.7.240.47 |
| 25 | 10.7.240.48/31 | 10.7.240.48 – 10.7.240.49 | 10.7.240.49 |
| 26 | 10.7.240.50/31 | 10.7.240.50 – 10.7.240.51 | 10.7.240.51 |
| 27 | 10.7.240.52/31 | 10.7.240.52 – 10.7.240.53 | 10.7.240.53 |
| 28 | 10.7.240.54/31 | 10.7.240.54 – 10.7.240.55 | 10.7.240.55 |
| 29 | 10.7.240.56/31 | 10.7.240.56 – 10.7.240.57 | 10.7.240.57 |
| 30 | 10.7.240.58/31 | 10.7.240.58 – 10.7.240.59 | 10.7.240.59 |
| 31 | 10.7.240.60/31 | 10.7.240.60 – 10.7.240.61 | 10.7.240.61 |
| 32 | 10.7.240.62/31 | 10.7.240.62 – 10.7.240.63 | 10.7.240.63 |
| 33 | 10.7.240.64/31 | 10.7.240.64 – 10.7.240.65 | 10.7.240.65 |
| 34 | 10.7.240.66/31 | 10.7.240.66 – 10.7.240.67 | 10.7.240.67 |
| 35 | 10.7.240.68/31 | 10.7.240.68 – 10.7.240.69 | 10.7.240.69 |
| 36 | 10.7.240.70/31 | 10.7.240.70 – 10.7.240.71 | 10.7.240.71 |
| 37 | 10.7.240.72/31 | 10.7.240.72 – 10.7.240.73 | 10.7.240.73 |
| 38 | 10.7.240.74/31 | 10.7.240.74 – 10.7.240.75 | 10.7.240.75 |
| 39 | 10.7.240.76/31 | 10.7.240.76 – 10.7.240.77 | 10.7.240.77 |
| 40 | 10.7.240.78/31 | 10.7.240.78 – 10.7.240.79 | 10.7.240.79 |
| 41 | 10.7.240.80/31 | 10.7.240.80 – 10.7.240.81 | 10.7.240.81 |
| 42 | 10.7.240.82/31 | 10.7.240.82 – 10.7.240.83 | 10.7.240.83 |
| 43 | 10.7.240.84/31 | 10.7.240.84 – 10.7.240.85 | 10.7.240.85 |
| 44 | 10.7.240.86/31 | 10.7.240.86 – 10.7.240.87 | 10.7.240.87 |
| 45 | 10.7.240.88/31 | 10.7.240.88 – 10.7.240.89 | 10.7.240.89 |
| 46 | 10.7.240.90/31 | 10.7.240.90 – 10.7.240.91 | 10.7.240.91 |
| 47 | 10.7.240.92/31 | 10.7.240.92 – 10.7.240.93 | 10.7.240.93 |
| 48 | 10.7.240.94/31 | 10.7.240.94 – 10.7.240.95 | 10.7.240.95 |
| 49 | 10.7.240.96/31 | 10.7.240.96 – 10.7.240.97 | 10.7.240.97 |
| 50 | 10.7.240.98/31 | 10.7.240.98 – 10.7.240.99 | 10.7.240.99 |
| 51 | 10.7.240.100/31 | 10.7.240.100 – 10.7.240.101 | 10.7.240.101 |
| 52 | 10.7.240.102/31 | 10.7.240.102 – 10.7.240.103 | 10.7.240.103 |
| 53 | 10.7.240.104/31 | 10.7.240.104 – 10.7.240.105 | 10.7.240.105 |
| 54 | 10.7.240.106/31 | 10.7.240.106 – 10.7.240.107 | 10.7.240.107 |
| 55 | 10.7.240.108/31 | 10.7.240.108 – 10.7.240.109 | 10.7.240.109 |
| 56 | 10.7.240.110/31 | 10.7.240.110 – 10.7.240.111 | 10.7.240.111 |
| 57 | 10.7.240.112/31 | 10.7.240.112 – 10.7.240.113 | 10.7.240.113 |
| 58 | 10.7.240.114/31 | 10.7.240.114 – 10.7.240.115 | 10.7.240.115 |
| 59 | 10.7.240.116/31 | 10.7.240.116 – 10.7.240.117 | 10.7.240.117 |
| 60 | 10.7.240.118/31 | 10.7.240.118 – 10.7.240.119 | 10.7.240.119 |
| 61 | 10.7.240.120/31 | 10.7.240.120 – 10.7.240.121 | 10.7.240.121 |
| 62 | 10.7.240.122/31 | 10.7.240.122 – 10.7.240.123 | 10.7.240.123 |
| 63 | 10.7.240.124/31 | 10.7.240.124 – 10.7.240.125 | 10.7.240.125 |
| 64 | 10.7.240.126/31 | 10.7.240.126 – 10.7.240.127 | 10.7.240.127 |
| 65 | 10.7.240.128/31 | 10.7.240.128 – 10.7.240.129 | 10.7.240.129 |
| 66 | 10.7.240.130/31 | 10.7.240.130 – 10.7.240.131 | 10.7.240.131 |
| 67 | 10.7.240.132/31 | 10.7.240.132 – 10.7.240.133 | 10.7.240.133 |
| 68 | 10.7.240.134/31 | 10.7.240.134 – 10.7.240.135 | 10.7.240.135 |
| 69 | 10.7.240.136/31 | 10.7.240.136 – 10.7.240.137 | 10.7.240.137 |
| 70 | 10.7.240.138/31 | 10.7.240.138 – 10.7.240.139 | 10.7.240.139 |
| 71 | 10.7.240.140/31 | 10.7.240.140 – 10.7.240.141 | 10.7.240.141 |
| 72 | 10.7.240.142/31 | 10.7.240.142 – 10.7.240.143 | 10.7.240.143 |
| 73 | 10.7.240.144/31 | 10.7.240.144 – 10.7.240.145 | 10.7.240.145 |
| 74 | 10.7.240.146/31 | 10.7.240.146 – 10.7.240.147 | 10.7.240.147 |
| 75 | 10.7.240.148/31 | 10.7.240.148 – 10.7.240.149 | 10.7.240.149 |
| 76 | 10.7.240.150/31 | 10.7.240.150 – 10.7.240.151 | 10.7.240.151 |
| 77 | 10.7.240.152/31 | 10.7.240.152 – 10.7.240.153 | 10.7.240.153 |
| 78 | 10.7.240.154/31 | 10.7.240.154 – 10.7.240.155 | 10.7.240.155 |
| 79 | 10.7.240.156/31 | 10.7.240.156 – 10.7.240.157 | 10.7.240.157 |
| 80 | 10.7.240.158/31 | 10.7.240.158 – 10.7.240.159 | 10.7.240.159 |
| 81 | 10.7.240.160/31 | 10.7.240.160 – 10.7.240.161 | 10.7.240.161 |
| 82 | 10.7.240.162/31 | 10.7.240.162 – 10.7.240.163 | 10.7.240.163 |
| 83 | 10.7.240.164/31 | 10.7.240.164 – 10.7.240.165 | 10.7.240.165 |
| 84 | 10.7.240.166/31 | 10.7.240.166 – 10.7.240.167 | 10.7.240.167 |
| 85 | 10.7.240.168/31 | 10.7.240.168 – 10.7.240.169 | 10.7.240.169 |
| 86 | 10.7.240.170/31 | 10.7.240.170 – 10.7.240.171 | 10.7.240.171 |
| 87 | 10.7.240.172/31 | 10.7.240.172 – 10.7.240.173 | 10.7.240.173 |
| 88 | 10.7.240.174/31 | 10.7.240.174 – 10.7.240.175 | 10.7.240.175 |
| 89 | 10.7.240.176/31 | 10.7.240.176 – 10.7.240.177 | 10.7.240.177 |
| 90 | 10.7.240.178/31 | 10.7.240.178 – 10.7.240.179 | 10.7.240.179 |
| 91 | 10.7.240.180/31 | 10.7.240.180 – 10.7.240.181 | 10.7.240.181 |
| 92 | 10.7.240.182/31 | 10.7.240.182 – 10.7.240.183 | 10.7.240.183 |
| 93 | 10.7.240.184/31 | 10.7.240.184 – 10.7.240.185 | 10.7.240.185 |
| 94 | 10.7.240.186/31 | 10.7.240.186 – 10.7.240.187 | 10.7.240.187 |
| 95 | 10.7.240.188/31 | 10.7.240.188 – 10.7.240.189 | 10.7.240.189 |
| 96 | 10.7.240.190/31 | 10.7.240.190 – 10.7.240.191 | 10.7.240.191 |
| 97 | 10.7.240.192/31 | 10.7.240.192 – 10.7.240.193 | 10.7.240.193 |
| 98 | 10.7.240.194/31 | 10.7.240.194 – 10.7.240.195 | 10.7.240.195 |
| 99 | 10.7.240.196/31 | 10.7.240.196 – 10.7.240.197 | 10.7.240.197 |
| 100 | 10.7.240.198/31 | 10.7.240.198 – 10.7.240.199 | 10.7.240.199 |
| 101 | 10.7.240.200/31 | 10.7.240.200 – 10.7.240.201 | 10.7.240.201 |
| 102 | 10.7.240.202/31 | 10.7.240.202 – 10.7.240.203 | 10.7.240.203 |
| 103 | 10.7.240.204/31 | 10.7.240.204 – 10.7.240.205 | 10.7.240.205 |
| 104 | 10.7.240.206/31 | 10.7.240.206 – 10.7.240.207 | 10.7.240.207 |
| 105 | 10.7.240.208/31 | 10.7.240.208 – 10.7.240.209 | 10.7.240.209 |
| 106 | 10.7.240.210/31 | 10.7.240.210 – 10.7.240.211 | 10.7.240.211 |
| 107 | 10.7.240.212/31 | 10.7.240.212 – 10.7.240.213 | 10.7.240.213 |
| 108 | 10.7.240.214/31 | 10.7.240.214 – 10.7.240.215 | 10.7.240.215 |
| 109 | 10.7.240.216/31 | 10.7.240.216 – 10.7.240.217 | 10.7.240.217 |
| 110 | 10.7.240.218/31 | 10.7.240.218 – 10.7.240.219 | 10.7.240.219 |
| 111 | 10.7.240.220/31 | 10.7.240.220 – 10.7.240.221 | 10.7.240.221 |
| 112 | 10.7.240.222/31 | 10.7.240.222 – 10.7.240.223 | 10.7.240.223 |
| 113 | 10.7.240.224/31 | 10.7.240.224 – 10.7.240.225 | 10.7.240.225 |
| 114 | 10.7.240.226/31 | 10.7.240.226 – 10.7.240.227 | 10.7.240.227 |
| 115 | 10.7.240.228/31 | 10.7.240.228 – 10.7.240.229 | 10.7.240.229 |
| 116 | 10.7.240.230/31 | 10.7.240.230 – 10.7.240.231 | 10.7.240.231 |
| 117 | 10.7.240.232/31 | 10.7.240.232 – 10.7.240.233 | 10.7.240.233 |
| 118 | 10.7.240.234/31 | 10.7.240.234 – 10.7.240.235 | 10.7.240.235 |
| 119 | 10.7.240.236/31 | 10.7.240.236 – 10.7.240.237 | 10.7.240.237 |
| 120 | 10.7.240.238/31 | 10.7.240.238 – 10.7.240.239 | 10.7.240.239 |
| 121 | 10.7.240.240/31 | 10.7.240.240 – 10.7.240.241 | 10.7.240.241 |
| 122 | 10.7.240.242/31 | 10.7.240.242 – 10.7.240.243 | 10.7.240.243 |
| 123 | 10.7.240.244/31 | 10.7.240.244 – 10.7.240.245 | 10.7.240.245 |
| 124 | 10.7.240.246/31 | 10.7.240.246 – 10.7.240.247 | 10.7.240.247 |
| 125 | 10.7.240.248/31 | 10.7.240.248 – 10.7.240.249 | 10.7.240.249 |
| 126 | 10.7.240.250/31 | 10.7.240.250 – 10.7.240.251 | 10.7.240.251 |
| 127 | 10.7.240.252/31 | 10.7.240.252 – 10.7.240.253 | 10.7.240.253 |
| 128 | 10.7.240.254/31 | 10.7.240.254 – 10.7.240.255 | 10.7.240.255 |
| 129 | 10.7.241.0/31 | 10.7.241.0 – 10.7.241.1 | 10.7.241.1 |
| 130 | 10.7.241.2/31 | 10.7.241.2 – 10.7.241.3 | 10.7.241.3 |
| 131 | 10.7.241.4/31 | 10.7.241.4 – 10.7.241.5 | 10.7.241.5 |
| 132 | 10.7.241.6/31 | 10.7.241.6 – 10.7.241.7 | 10.7.241.7 |
| 133 | 10.7.241.8/31 | 10.7.241.8 – 10.7.241.9 | 10.7.241.9 |
| 134 | 10.7.241.10/31 | 10.7.241.10 – 10.7.241.11 | 10.7.241.11 |
| 135 | 10.7.241.12/31 | 10.7.241.12 – 10.7.241.13 | 10.7.241.13 |
| 136 | 10.7.241.14/31 | 10.7.241.14 – 10.7.241.15 | 10.7.241.15 |
| 137 | 10.7.241.16/31 | 10.7.241.16 – 10.7.241.17 | 10.7.241.17 |
| 138 | 10.7.241.18/31 | 10.7.241.18 – 10.7.241.19 | 10.7.241.19 |
| 139 | 10.7.241.20/31 | 10.7.241.20 – 10.7.241.21 | 10.7.241.21 |
| 140 | 10.7.241.22/31 | 10.7.241.22 – 10.7.241.23 | 10.7.241.23 |
| 141 | 10.7.241.24/31 | 10.7.241.24 – 10.7.241.25 | 10.7.241.25 |
| 142 | 10.7.241.26/31 | 10.7.241.26 – 10.7.241.27 | 10.7.241.27 |
| 143 | 10.7.241.28/31 | 10.7.241.28 – 10.7.241.29 | 10.7.241.29 |
| 144 | 10.7.241.30/31 | 10.7.241.30 – 10.7.241.31 | 10.7.241.31 |
| 145 | 10.7.241.32/31 | 10.7.241.32 – 10.7.241.33 | 10.7.241.33 |
| 146 | 10.7.241.34/31 | 10.7.241.34 – 10.7.241.35 | 10.7.241.35 |
| 147 | 10.7.241.36/31 | 10.7.241.36 – 10.7.241.37 | 10.7.241.37 |
| 148 | 10.7.241.38/31 | 10.7.241.38 – 10.7.241.39 | 10.7.241.39 |
| 149 | 10.7.241.40/31 | 10.7.241.40 – 10.7.241.41 | 10.7.241.41 |
| 150 | 10.7.241.42/31 | 10.7.241.42 – 10.7.241.43 | 10.7.241.43 |
| 151 | 10.7.241.44/31 | 10.7.241.44 – 10.7.241.45 | 10.7.241.45 |
| 152 | 10.7.241.46/31 | 10.7.241.46 – 10.7.241.47 | 10.7.241.47 |
| 153 | 10.7.241.48/31 | 10.7.241.48 – 10.7.241.49 | 10.7.241.49 |
| 154 | 10.7.241.50/31 | 10.7.241.50 – 10.7.241.51 | 10.7.241.51 |
| 155 | 10.7.241.52/31 | 10.7.241.52 – 10.7.241.53 | 10.7.241.53 |
| 156 | 10.7.241.54/31 | 10.7.241.54 – 10.7.241.55 | 10.7.241.55 |
| 157 | 10.7.241.56/31 | 10.7.241.56 – 10.7.241.57 | 10.7.241.57 |
| 158 | 10.7.241.58/31 | 10.7.241.58 – 10.7.241.59 | 10.7.241.59 |
| 159 | 10.7.241.60/31 | 10.7.241.60 – 10.7.241.61 | 10.7.241.61 |
| 160 | 10.7.241.62/31 | 10.7.241.62 – 10.7.241.63 | 10.7.241.63 |
| 161 | 10.7.241.64/31 | 10.7.241.64 – 10.7.241.65 | 10.7.241.65 |
| 162 | 10.7.241.66/31 | 10.7.241.66 – 10.7.241.67 | 10.7.241.67 |
| 163 | 10.7.241.68/31 | 10.7.241.68 – 10.7.241.69 | 10.7.241.69 |
| 164 | 10.7.241.70/31 | 10.7.241.70 – 10.7.241.71 | 10.7.241.71 |
| 165 | 10.7.241.72/31 | 10.7.241.72 – 10.7.241.73 | 10.7.241.73 |
| 166 | 10.7.241.74/31 | 10.7.241.74 – 10.7.241.75 | 10.7.241.75 |
| 167 | 10.7.241.76/31 | 10.7.241.76 – 10.7.241.77 | 10.7.241.77 |
| 168 | 10.7.241.78/31 | 10.7.241.78 – 10.7.241.79 | 10.7.241.79 |
| 169 | 10.7.241.80/31 | 10.7.241.80 – 10.7.241.81 | 10.7.241.81 |
| 170 | 10.7.241.82/31 | 10.7.241.82 – 10.7.241.83 | 10.7.241.83 |
| 171 | 10.7.241.84/31 | 10.7.241.84 – 10.7.241.85 | 10.7.241.85 |
| 172 | 10.7.241.86/31 | 10.7.241.86 – 10.7.241.87 | 10.7.241.87 |
| 173 | 10.7.241.88/31 | 10.7.241.88 – 10.7.241.89 | 10.7.241.89 |
| 174 | 10.7.241.90/31 | 10.7.241.90 – 10.7.241.91 | 10.7.241.91 |
| 175 | 10.7.241.92/31 | 10.7.241.92 – 10.7.241.93 | 10.7.241.93 |
| 176 | 10.7.241.94/31 | 10.7.241.94 – 10.7.241.95 | 10.7.241.95 |
| 177 | 10.7.241.96/31 | 10.7.241.96 – 10.7.241.97 | 10.7.241.97 |
| 178 | 10.7.241.98/31 | 10.7.241.98 – 10.7.241.99 | 10.7.241.99 |
| 179 | 10.7.241.100/31 | 10.7.241.100 – 10.7.241.101 | 10.7.241.101 |
| 180 | 10.7.241.102/31 | 10.7.241.102 – 10.7.241.103 | 10.7.241.103 |
| 181 | 10.7.241.104/31 | 10.7.241.104 – 10.7.241.105 | 10.7.241.105 |
| 182 | 10.7.241.106/31 | 10.7.241.106 – 10.7.241.107 | 10.7.241.107 |
| 183 | 10.7.241.108/31 | 10.7.241.108 – 10.7.241.109 | 10.7.241.109 |
| 184 | 10.7.241.110/31 | 10.7.241.110 – 10.7.241.111 | 10.7.241.111 |
| 185 | 10.7.241.112/31 | 10.7.241.112 – 10.7.241.113 | 10.7.241.113 |
| 186 | 10.7.241.114/31 | 10.7.241.114 – 10.7.241.115 | 10.7.241.115 |
| 187 | 10.7.241.116/31 | 10.7.241.116 – 10.7.241.117 | 10.7.241.117 |
| 188 | 10.7.241.118/31 | 10.7.241.118 – 10.7.241.119 | 10.7.241.119 |
| 189 | 10.7.241.120/31 | 10.7.241.120 – 10.7.241.121 | 10.7.241.121 |
| 190 | 10.7.241.122/31 | 10.7.241.122 – 10.7.241.123 | 10.7.241.123 |
| 191 | 10.7.241.124/31 | 10.7.241.124 – 10.7.241.125 | 10.7.241.125 |
| 192 | 10.7.241.126/31 | 10.7.241.126 – 10.7.241.127 | 10.7.241.127 |
| 193 | 10.7.241.128/31 | 10.7.241.128 – 10.7.241.129 | 10.7.241.129 |
| 194 | 10.7.241.130/31 | 10.7.241.130 – 10.7.241.131 | 10.7.241.131 |
| 195 | 10.7.241.132/31 | 10.7.241.132 – 10.7.241.133 | 10.7.241.133 |
| 196 | 10.7.241.134/31 | 10.7.241.134 – 10.7.241.135 | 10.7.241.135 |
| 197 | 10.7.241.136/31 | 10.7.241.136 – 10.7.241.137 | 10.7.241.137 |
| 198 | 10.7.241.138/31 | 10.7.241.138 – 10.7.241.139 | 10.7.241.139 |
| 199 | 10.7.241.140/31 | 10.7.241.140 – 10.7.241.141 | 10.7.241.141 |
| 200 | 10.7.241.142/31 | 10.7.241.142 – 10.7.241.143 | 10.7.241.143 |
| 201 | 10.7.241.144/31 | 10.7.241.144 – 10.7.241.145 | 10.7.241.145 |
| 202 | 10.7.241.146/31 | 10.7.241.146 – 10.7.241.147 | 10.7.241.147 |
| 203 | 10.7.241.148/31 | 10.7.241.148 – 10.7.241.149 | 10.7.241.149 |
| 204 | 10.7.241.150/31 | 10.7.241.150 – 10.7.241.151 | 10.7.241.151 |
| 205 | 10.7.241.152/31 | 10.7.241.152 – 10.7.241.153 | 10.7.241.153 |
| 206 | 10.7.241.154/31 | 10.7.241.154 – 10.7.241.155 | 10.7.241.155 |
| 207 | 10.7.241.156/31 | 10.7.241.156 – 10.7.241.157 | 10.7.241.157 |
| 208 | 10.7.241.158/31 | 10.7.241.158 – 10.7.241.159 | 10.7.241.159 |
| 209 | 10.7.241.160/31 | 10.7.241.160 – 10.7.241.161 | 10.7.241.161 |
| 210 | 10.7.241.162/31 | 10.7.241.162 – 10.7.241.163 | 10.7.241.163 |
| 211 | 10.7.241.164/31 | 10.7.241.164 – 10.7.241.165 | 10.7.241.165 |
| 212 | 10.7.241.166/31 | 10.7.241.166 – 10.7.241.167 | 10.7.241.167 |
| 213 | 10.7.241.168/31 | 10.7.241.168 – 10.7.241.169 | 10.7.241.169 |
| 214 | 10.7.241.170/31 | 10.7.241.170 – 10.7.241.171 | 10.7.241.171 |
| 215 | 10.7.241.172/31 | 10.7.241.172 – 10.7.241.173 | 10.7.241.173 |
| 216 | 10.7.241.174/31 | 10.7.241.174 – 10.7.241.175 | 10.7.241.175 |
| 217 | 10.7.241.176/31 | 10.7.241.176 – 10.7.241.177 | 10.7.241.177 |
| 218 | 10.7.241.178/31 | 10.7.241.178 – 10.7.241.179 | 10.7.241.179 |
| 219 | 10.7.241.180/31 | 10.7.241.180 – 10.7.241.181 | 10.7.241.181 |
| 220 | 10.7.241.182/31 | 10.7.241.182 – 10.7.241.183 | 10.7.241.183 |
| 221 | 10.7.241.184/31 | 10.7.241.184 – 10.7.241.185 | 10.7.241.185 |
| 222 | 10.7.241.186/31 | 10.7.241.186 – 10.7.241.187 | 10.7.241.187 |
| 223 | 10.7.241.188/31 | 10.7.241.188 – 10.7.241.189 | 10.7.241.189 |
| 224 | 10.7.241.190/31 | 10.7.241.190 – 10.7.241.191 | 10.7.241.191 |
| 225 | 10.7.241.192/31 | 10.7.241.192 – 10.7.241.193 | 10.7.241.193 |
| 226 | 10.7.241.194/31 | 10.7.241.194 – 10.7.241.195 | 10.7.241.195 |
| 227 | 10.7.241.196/31 | 10.7.241.196 – 10.7.241.197 | 10.7.241.197 |
| 228 | 10.7.241.198/31 | 10.7.241.198 – 10.7.241.199 | 10.7.241.199 |
| 229 | 10.7.241.200/31 | 10.7.241.200 – 10.7.241.201 | 10.7.241.201 |
| 230 | 10.7.241.202/31 | 10.7.241.202 – 10.7.241.203 | 10.7.241.203 |
| 231 | 10.7.241.204/31 | 10.7.241.204 – 10.7.241.205 | 10.7.241.205 |
| 232 | 10.7.241.206/31 | 10.7.241.206 – 10.7.241.207 | 10.7.241.207 |
| 233 | 10.7.241.208/31 | 10.7.241.208 – 10.7.241.209 | 10.7.241.209 |
| 234 | 10.7.241.210/31 | 10.7.241.210 – 10.7.241.211 | 10.7.241.211 |
| 235 | 10.7.241.212/31 | 10.7.241.212 – 10.7.241.213 | 10.7.241.213 |
| 236 | 10.7.241.214/31 | 10.7.241.214 – 10.7.241.215 | 10.7.241.215 |
| 237 | 10.7.241.216/31 | 10.7.241.216 – 10.7.241.217 | 10.7.241.217 |
| 238 | 10.7.241.218/31 | 10.7.241.218 – 10.7.241.219 | 10.7.241.219 |
| 239 | 10.7.241.220/31 | 10.7.241.220 – 10.7.241.221 | 10.7.241.221 |
| 240 | 10.7.241.222/31 | 10.7.241.222 – 10.7.241.223 | 10.7.241.223 |
| 241 | 10.7.241.224/31 | 10.7.241.224 – 10.7.241.225 | 10.7.241.225 |
| 242 | 10.7.241.226/31 | 10.7.241.226 – 10.7.241.227 | 10.7.241.227 |
| 243 | 10.7.241.228/31 | 10.7.241.228 – 10.7.241.229 | 10.7.241.229 |
| 244 | 10.7.241.230/31 | 10.7.241.230 – 10.7.241.231 | 10.7.241.231 |
| 245 | 10.7.241.232/31 | 10.7.241.232 – 10.7.241.233 | 10.7.241.233 |
| 246 | 10.7.241.234/31 | 10.7.241.234 – 10.7.241.235 | 10.7.241.235 |
| 247 | 10.7.241.236/31 | 10.7.241.236 – 10.7.241.237 | 10.7.241.237 |
| 248 | 10.7.241.238/31 | 10.7.241.238 – 10.7.241.239 | 10.7.241.239 |
| 249 | 10.7.241.240/31 | 10.7.241.240 – 10.7.241.241 | 10.7.241.241 |
| 250 | 10.7.241.242/31 | 10.7.241.242 – 10.7.241.243 | 10.7.241.243 |
| 251 | 10.7.241.244/31 | 10.7.241.244 – 10.7.241.245 | 10.7.241.245 |
| 252 | 10.7.241.246/31 | 10.7.241.246 – 10.7.241.247 | 10.7.241.247 |
| 253 | 10.7.241.248/31 | 10.7.241.248 – 10.7.241.249 | 10.7.241.249 |
| 254 | 10.7.241.250/31 | 10.7.241.250 – 10.7.241.251 | 10.7.241.251 |
| 255 | 10.7.241.252/31 | 10.7.241.252 – 10.7.241.253 | 10.7.241.253 |
| 256 | 10.7.241.254/31 | 10.7.241.254 – 10.7.241.255 | 10.7.241.255 |
showing 256 of 1,024
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 /21 |
|---|---|---|---|---|
| /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 | 1 |
| /22 | 255.255.252.0 | 1,024 | 1,022 | 2 split → |
| /23 | 255.255.254.0 | 512 | 510 | 4 split → |
| /24 | 255.255.255.0 | 256 | 254 | 8 split → |
| /25 | 255.255.255.128 | 128 | 126 | 16 split → |
| /26 | 255.255.255.192 | 64 | 62 | 32 split → |
| /27 | 255.255.255.224 | 32 | 30 | 64 split → |
| /28 | 255.255.255.240 | 16 | 14 | 128 split → |
| /29 | 255.255.255.248 | 8 | 6 | 256 split → |
| /30 | 255.255.255.252 | 4 | 2 | 512 split → |
| /31 | 255.255.255.254 | 2 | 2 | 1,024 split → |
| /32 | 255.255.255.255 | 1 | 1 | 2,048 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.