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)10.3.207.0/24
network10.3.207.0/24
broadcast10.3.207.255
first host10.3.207.1
last host10.3.207.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.3.207.0/24
address00001010.00000011.11001111.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.00000011.11001111.00000000
broadcast00001010.00000011.11001111.11111111
green = network part, grey = host part
hex0x0a03cf00
decimal168021760
reverse dns0.207.3.10.in-addr.arpa
ipv4-mapped::ffff:a03:cf00
/24 split into /32 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.3.207.0/32 | 10.3.207.0 – 10.3.207.0 | 10.3.207.0 |
| 2 | 10.3.207.1/32 | 10.3.207.1 – 10.3.207.1 | 10.3.207.1 |
| 3 | 10.3.207.2/32 | 10.3.207.2 – 10.3.207.2 | 10.3.207.2 |
| 4 | 10.3.207.3/32 | 10.3.207.3 – 10.3.207.3 | 10.3.207.3 |
| 5 | 10.3.207.4/32 | 10.3.207.4 – 10.3.207.4 | 10.3.207.4 |
| 6 | 10.3.207.5/32 | 10.3.207.5 – 10.3.207.5 | 10.3.207.5 |
| 7 | 10.3.207.6/32 | 10.3.207.6 – 10.3.207.6 | 10.3.207.6 |
| 8 | 10.3.207.7/32 | 10.3.207.7 – 10.3.207.7 | 10.3.207.7 |
| 9 | 10.3.207.8/32 | 10.3.207.8 – 10.3.207.8 | 10.3.207.8 |
| 10 | 10.3.207.9/32 | 10.3.207.9 – 10.3.207.9 | 10.3.207.9 |
| 11 | 10.3.207.10/32 | 10.3.207.10 – 10.3.207.10 | 10.3.207.10 |
| 12 | 10.3.207.11/32 | 10.3.207.11 – 10.3.207.11 | 10.3.207.11 |
| 13 | 10.3.207.12/32 | 10.3.207.12 – 10.3.207.12 | 10.3.207.12 |
| 14 | 10.3.207.13/32 | 10.3.207.13 – 10.3.207.13 | 10.3.207.13 |
| 15 | 10.3.207.14/32 | 10.3.207.14 – 10.3.207.14 | 10.3.207.14 |
| 16 | 10.3.207.15/32 | 10.3.207.15 – 10.3.207.15 | 10.3.207.15 |
| 17 | 10.3.207.16/32 | 10.3.207.16 – 10.3.207.16 | 10.3.207.16 |
| 18 | 10.3.207.17/32 | 10.3.207.17 – 10.3.207.17 | 10.3.207.17 |
| 19 | 10.3.207.18/32 | 10.3.207.18 – 10.3.207.18 | 10.3.207.18 |
| 20 | 10.3.207.19/32 | 10.3.207.19 – 10.3.207.19 | 10.3.207.19 |
| 21 | 10.3.207.20/32 | 10.3.207.20 – 10.3.207.20 | 10.3.207.20 |
| 22 | 10.3.207.21/32 | 10.3.207.21 – 10.3.207.21 | 10.3.207.21 |
| 23 | 10.3.207.22/32 | 10.3.207.22 – 10.3.207.22 | 10.3.207.22 |
| 24 | 10.3.207.23/32 | 10.3.207.23 – 10.3.207.23 | 10.3.207.23 |
| 25 | 10.3.207.24/32 | 10.3.207.24 – 10.3.207.24 | 10.3.207.24 |
| 26 | 10.3.207.25/32 | 10.3.207.25 – 10.3.207.25 | 10.3.207.25 |
| 27 | 10.3.207.26/32 | 10.3.207.26 – 10.3.207.26 | 10.3.207.26 |
| 28 | 10.3.207.27/32 | 10.3.207.27 – 10.3.207.27 | 10.3.207.27 |
| 29 | 10.3.207.28/32 | 10.3.207.28 – 10.3.207.28 | 10.3.207.28 |
| 30 | 10.3.207.29/32 | 10.3.207.29 – 10.3.207.29 | 10.3.207.29 |
| 31 | 10.3.207.30/32 | 10.3.207.30 – 10.3.207.30 | 10.3.207.30 |
| 32 | 10.3.207.31/32 | 10.3.207.31 – 10.3.207.31 | 10.3.207.31 |
| 33 | 10.3.207.32/32 | 10.3.207.32 – 10.3.207.32 | 10.3.207.32 |
| 34 | 10.3.207.33/32 | 10.3.207.33 – 10.3.207.33 | 10.3.207.33 |
| 35 | 10.3.207.34/32 | 10.3.207.34 – 10.3.207.34 | 10.3.207.34 |
| 36 | 10.3.207.35/32 | 10.3.207.35 – 10.3.207.35 | 10.3.207.35 |
| 37 | 10.3.207.36/32 | 10.3.207.36 – 10.3.207.36 | 10.3.207.36 |
| 38 | 10.3.207.37/32 | 10.3.207.37 – 10.3.207.37 | 10.3.207.37 |
| 39 | 10.3.207.38/32 | 10.3.207.38 – 10.3.207.38 | 10.3.207.38 |
| 40 | 10.3.207.39/32 | 10.3.207.39 – 10.3.207.39 | 10.3.207.39 |
| 41 | 10.3.207.40/32 | 10.3.207.40 – 10.3.207.40 | 10.3.207.40 |
| 42 | 10.3.207.41/32 | 10.3.207.41 – 10.3.207.41 | 10.3.207.41 |
| 43 | 10.3.207.42/32 | 10.3.207.42 – 10.3.207.42 | 10.3.207.42 |
| 44 | 10.3.207.43/32 | 10.3.207.43 – 10.3.207.43 | 10.3.207.43 |
| 45 | 10.3.207.44/32 | 10.3.207.44 – 10.3.207.44 | 10.3.207.44 |
| 46 | 10.3.207.45/32 | 10.3.207.45 – 10.3.207.45 | 10.3.207.45 |
| 47 | 10.3.207.46/32 | 10.3.207.46 – 10.3.207.46 | 10.3.207.46 |
| 48 | 10.3.207.47/32 | 10.3.207.47 – 10.3.207.47 | 10.3.207.47 |
| 49 | 10.3.207.48/32 | 10.3.207.48 – 10.3.207.48 | 10.3.207.48 |
| 50 | 10.3.207.49/32 | 10.3.207.49 – 10.3.207.49 | 10.3.207.49 |
| 51 | 10.3.207.50/32 | 10.3.207.50 – 10.3.207.50 | 10.3.207.50 |
| 52 | 10.3.207.51/32 | 10.3.207.51 – 10.3.207.51 | 10.3.207.51 |
| 53 | 10.3.207.52/32 | 10.3.207.52 – 10.3.207.52 | 10.3.207.52 |
| 54 | 10.3.207.53/32 | 10.3.207.53 – 10.3.207.53 | 10.3.207.53 |
| 55 | 10.3.207.54/32 | 10.3.207.54 – 10.3.207.54 | 10.3.207.54 |
| 56 | 10.3.207.55/32 | 10.3.207.55 – 10.3.207.55 | 10.3.207.55 |
| 57 | 10.3.207.56/32 | 10.3.207.56 – 10.3.207.56 | 10.3.207.56 |
| 58 | 10.3.207.57/32 | 10.3.207.57 – 10.3.207.57 | 10.3.207.57 |
| 59 | 10.3.207.58/32 | 10.3.207.58 – 10.3.207.58 | 10.3.207.58 |
| 60 | 10.3.207.59/32 | 10.3.207.59 – 10.3.207.59 | 10.3.207.59 |
| 61 | 10.3.207.60/32 | 10.3.207.60 – 10.3.207.60 | 10.3.207.60 |
| 62 | 10.3.207.61/32 | 10.3.207.61 – 10.3.207.61 | 10.3.207.61 |
| 63 | 10.3.207.62/32 | 10.3.207.62 – 10.3.207.62 | 10.3.207.62 |
| 64 | 10.3.207.63/32 | 10.3.207.63 – 10.3.207.63 | 10.3.207.63 |
| 65 | 10.3.207.64/32 | 10.3.207.64 – 10.3.207.64 | 10.3.207.64 |
| 66 | 10.3.207.65/32 | 10.3.207.65 – 10.3.207.65 | 10.3.207.65 |
| 67 | 10.3.207.66/32 | 10.3.207.66 – 10.3.207.66 | 10.3.207.66 |
| 68 | 10.3.207.67/32 | 10.3.207.67 – 10.3.207.67 | 10.3.207.67 |
| 69 | 10.3.207.68/32 | 10.3.207.68 – 10.3.207.68 | 10.3.207.68 |
| 70 | 10.3.207.69/32 | 10.3.207.69 – 10.3.207.69 | 10.3.207.69 |
| 71 | 10.3.207.70/32 | 10.3.207.70 – 10.3.207.70 | 10.3.207.70 |
| 72 | 10.3.207.71/32 | 10.3.207.71 – 10.3.207.71 | 10.3.207.71 |
| 73 | 10.3.207.72/32 | 10.3.207.72 – 10.3.207.72 | 10.3.207.72 |
| 74 | 10.3.207.73/32 | 10.3.207.73 – 10.3.207.73 | 10.3.207.73 |
| 75 | 10.3.207.74/32 | 10.3.207.74 – 10.3.207.74 | 10.3.207.74 |
| 76 | 10.3.207.75/32 | 10.3.207.75 – 10.3.207.75 | 10.3.207.75 |
| 77 | 10.3.207.76/32 | 10.3.207.76 – 10.3.207.76 | 10.3.207.76 |
| 78 | 10.3.207.77/32 | 10.3.207.77 – 10.3.207.77 | 10.3.207.77 |
| 79 | 10.3.207.78/32 | 10.3.207.78 – 10.3.207.78 | 10.3.207.78 |
| 80 | 10.3.207.79/32 | 10.3.207.79 – 10.3.207.79 | 10.3.207.79 |
| 81 | 10.3.207.80/32 | 10.3.207.80 – 10.3.207.80 | 10.3.207.80 |
| 82 | 10.3.207.81/32 | 10.3.207.81 – 10.3.207.81 | 10.3.207.81 |
| 83 | 10.3.207.82/32 | 10.3.207.82 – 10.3.207.82 | 10.3.207.82 |
| 84 | 10.3.207.83/32 | 10.3.207.83 – 10.3.207.83 | 10.3.207.83 |
| 85 | 10.3.207.84/32 | 10.3.207.84 – 10.3.207.84 | 10.3.207.84 |
| 86 | 10.3.207.85/32 | 10.3.207.85 – 10.3.207.85 | 10.3.207.85 |
| 87 | 10.3.207.86/32 | 10.3.207.86 – 10.3.207.86 | 10.3.207.86 |
| 88 | 10.3.207.87/32 | 10.3.207.87 – 10.3.207.87 | 10.3.207.87 |
| 89 | 10.3.207.88/32 | 10.3.207.88 – 10.3.207.88 | 10.3.207.88 |
| 90 | 10.3.207.89/32 | 10.3.207.89 – 10.3.207.89 | 10.3.207.89 |
| 91 | 10.3.207.90/32 | 10.3.207.90 – 10.3.207.90 | 10.3.207.90 |
| 92 | 10.3.207.91/32 | 10.3.207.91 – 10.3.207.91 | 10.3.207.91 |
| 93 | 10.3.207.92/32 | 10.3.207.92 – 10.3.207.92 | 10.3.207.92 |
| 94 | 10.3.207.93/32 | 10.3.207.93 – 10.3.207.93 | 10.3.207.93 |
| 95 | 10.3.207.94/32 | 10.3.207.94 – 10.3.207.94 | 10.3.207.94 |
| 96 | 10.3.207.95/32 | 10.3.207.95 – 10.3.207.95 | 10.3.207.95 |
| 97 | 10.3.207.96/32 | 10.3.207.96 – 10.3.207.96 | 10.3.207.96 |
| 98 | 10.3.207.97/32 | 10.3.207.97 – 10.3.207.97 | 10.3.207.97 |
| 99 | 10.3.207.98/32 | 10.3.207.98 – 10.3.207.98 | 10.3.207.98 |
| 100 | 10.3.207.99/32 | 10.3.207.99 – 10.3.207.99 | 10.3.207.99 |
| 101 | 10.3.207.100/32 | 10.3.207.100 – 10.3.207.100 | 10.3.207.100 |
| 102 | 10.3.207.101/32 | 10.3.207.101 – 10.3.207.101 | 10.3.207.101 |
| 103 | 10.3.207.102/32 | 10.3.207.102 – 10.3.207.102 | 10.3.207.102 |
| 104 | 10.3.207.103/32 | 10.3.207.103 – 10.3.207.103 | 10.3.207.103 |
| 105 | 10.3.207.104/32 | 10.3.207.104 – 10.3.207.104 | 10.3.207.104 |
| 106 | 10.3.207.105/32 | 10.3.207.105 – 10.3.207.105 | 10.3.207.105 |
| 107 | 10.3.207.106/32 | 10.3.207.106 – 10.3.207.106 | 10.3.207.106 |
| 108 | 10.3.207.107/32 | 10.3.207.107 – 10.3.207.107 | 10.3.207.107 |
| 109 | 10.3.207.108/32 | 10.3.207.108 – 10.3.207.108 | 10.3.207.108 |
| 110 | 10.3.207.109/32 | 10.3.207.109 – 10.3.207.109 | 10.3.207.109 |
| 111 | 10.3.207.110/32 | 10.3.207.110 – 10.3.207.110 | 10.3.207.110 |
| 112 | 10.3.207.111/32 | 10.3.207.111 – 10.3.207.111 | 10.3.207.111 |
| 113 | 10.3.207.112/32 | 10.3.207.112 – 10.3.207.112 | 10.3.207.112 |
| 114 | 10.3.207.113/32 | 10.3.207.113 – 10.3.207.113 | 10.3.207.113 |
| 115 | 10.3.207.114/32 | 10.3.207.114 – 10.3.207.114 | 10.3.207.114 |
| 116 | 10.3.207.115/32 | 10.3.207.115 – 10.3.207.115 | 10.3.207.115 |
| 117 | 10.3.207.116/32 | 10.3.207.116 – 10.3.207.116 | 10.3.207.116 |
| 118 | 10.3.207.117/32 | 10.3.207.117 – 10.3.207.117 | 10.3.207.117 |
| 119 | 10.3.207.118/32 | 10.3.207.118 – 10.3.207.118 | 10.3.207.118 |
| 120 | 10.3.207.119/32 | 10.3.207.119 – 10.3.207.119 | 10.3.207.119 |
| 121 | 10.3.207.120/32 | 10.3.207.120 – 10.3.207.120 | 10.3.207.120 |
| 122 | 10.3.207.121/32 | 10.3.207.121 – 10.3.207.121 | 10.3.207.121 |
| 123 | 10.3.207.122/32 | 10.3.207.122 – 10.3.207.122 | 10.3.207.122 |
| 124 | 10.3.207.123/32 | 10.3.207.123 – 10.3.207.123 | 10.3.207.123 |
| 125 | 10.3.207.124/32 | 10.3.207.124 – 10.3.207.124 | 10.3.207.124 |
| 126 | 10.3.207.125/32 | 10.3.207.125 – 10.3.207.125 | 10.3.207.125 |
| 127 | 10.3.207.126/32 | 10.3.207.126 – 10.3.207.126 | 10.3.207.126 |
| 128 | 10.3.207.127/32 | 10.3.207.127 – 10.3.207.127 | 10.3.207.127 |
| 129 | 10.3.207.128/32 | 10.3.207.128 – 10.3.207.128 | 10.3.207.128 |
| 130 | 10.3.207.129/32 | 10.3.207.129 – 10.3.207.129 | 10.3.207.129 |
| 131 | 10.3.207.130/32 | 10.3.207.130 – 10.3.207.130 | 10.3.207.130 |
| 132 | 10.3.207.131/32 | 10.3.207.131 – 10.3.207.131 | 10.3.207.131 |
| 133 | 10.3.207.132/32 | 10.3.207.132 – 10.3.207.132 | 10.3.207.132 |
| 134 | 10.3.207.133/32 | 10.3.207.133 – 10.3.207.133 | 10.3.207.133 |
| 135 | 10.3.207.134/32 | 10.3.207.134 – 10.3.207.134 | 10.3.207.134 |
| 136 | 10.3.207.135/32 | 10.3.207.135 – 10.3.207.135 | 10.3.207.135 |
| 137 | 10.3.207.136/32 | 10.3.207.136 – 10.3.207.136 | 10.3.207.136 |
| 138 | 10.3.207.137/32 | 10.3.207.137 – 10.3.207.137 | 10.3.207.137 |
| 139 | 10.3.207.138/32 | 10.3.207.138 – 10.3.207.138 | 10.3.207.138 |
| 140 | 10.3.207.139/32 | 10.3.207.139 – 10.3.207.139 | 10.3.207.139 |
| 141 | 10.3.207.140/32 | 10.3.207.140 – 10.3.207.140 | 10.3.207.140 |
| 142 | 10.3.207.141/32 | 10.3.207.141 – 10.3.207.141 | 10.3.207.141 |
| 143 | 10.3.207.142/32 | 10.3.207.142 – 10.3.207.142 | 10.3.207.142 |
| 144 | 10.3.207.143/32 | 10.3.207.143 – 10.3.207.143 | 10.3.207.143 |
| 145 | 10.3.207.144/32 | 10.3.207.144 – 10.3.207.144 | 10.3.207.144 |
| 146 | 10.3.207.145/32 | 10.3.207.145 – 10.3.207.145 | 10.3.207.145 |
| 147 | 10.3.207.146/32 | 10.3.207.146 – 10.3.207.146 | 10.3.207.146 |
| 148 | 10.3.207.147/32 | 10.3.207.147 – 10.3.207.147 | 10.3.207.147 |
| 149 | 10.3.207.148/32 | 10.3.207.148 – 10.3.207.148 | 10.3.207.148 |
| 150 | 10.3.207.149/32 | 10.3.207.149 – 10.3.207.149 | 10.3.207.149 |
| 151 | 10.3.207.150/32 | 10.3.207.150 – 10.3.207.150 | 10.3.207.150 |
| 152 | 10.3.207.151/32 | 10.3.207.151 – 10.3.207.151 | 10.3.207.151 |
| 153 | 10.3.207.152/32 | 10.3.207.152 – 10.3.207.152 | 10.3.207.152 |
| 154 | 10.3.207.153/32 | 10.3.207.153 – 10.3.207.153 | 10.3.207.153 |
| 155 | 10.3.207.154/32 | 10.3.207.154 – 10.3.207.154 | 10.3.207.154 |
| 156 | 10.3.207.155/32 | 10.3.207.155 – 10.3.207.155 | 10.3.207.155 |
| 157 | 10.3.207.156/32 | 10.3.207.156 – 10.3.207.156 | 10.3.207.156 |
| 158 | 10.3.207.157/32 | 10.3.207.157 – 10.3.207.157 | 10.3.207.157 |
| 159 | 10.3.207.158/32 | 10.3.207.158 – 10.3.207.158 | 10.3.207.158 |
| 160 | 10.3.207.159/32 | 10.3.207.159 – 10.3.207.159 | 10.3.207.159 |
| 161 | 10.3.207.160/32 | 10.3.207.160 – 10.3.207.160 | 10.3.207.160 |
| 162 | 10.3.207.161/32 | 10.3.207.161 – 10.3.207.161 | 10.3.207.161 |
| 163 | 10.3.207.162/32 | 10.3.207.162 – 10.3.207.162 | 10.3.207.162 |
| 164 | 10.3.207.163/32 | 10.3.207.163 – 10.3.207.163 | 10.3.207.163 |
| 165 | 10.3.207.164/32 | 10.3.207.164 – 10.3.207.164 | 10.3.207.164 |
| 166 | 10.3.207.165/32 | 10.3.207.165 – 10.3.207.165 | 10.3.207.165 |
| 167 | 10.3.207.166/32 | 10.3.207.166 – 10.3.207.166 | 10.3.207.166 |
| 168 | 10.3.207.167/32 | 10.3.207.167 – 10.3.207.167 | 10.3.207.167 |
| 169 | 10.3.207.168/32 | 10.3.207.168 – 10.3.207.168 | 10.3.207.168 |
| 170 | 10.3.207.169/32 | 10.3.207.169 – 10.3.207.169 | 10.3.207.169 |
| 171 | 10.3.207.170/32 | 10.3.207.170 – 10.3.207.170 | 10.3.207.170 |
| 172 | 10.3.207.171/32 | 10.3.207.171 – 10.3.207.171 | 10.3.207.171 |
| 173 | 10.3.207.172/32 | 10.3.207.172 – 10.3.207.172 | 10.3.207.172 |
| 174 | 10.3.207.173/32 | 10.3.207.173 – 10.3.207.173 | 10.3.207.173 |
| 175 | 10.3.207.174/32 | 10.3.207.174 – 10.3.207.174 | 10.3.207.174 |
| 176 | 10.3.207.175/32 | 10.3.207.175 – 10.3.207.175 | 10.3.207.175 |
| 177 | 10.3.207.176/32 | 10.3.207.176 – 10.3.207.176 | 10.3.207.176 |
| 178 | 10.3.207.177/32 | 10.3.207.177 – 10.3.207.177 | 10.3.207.177 |
| 179 | 10.3.207.178/32 | 10.3.207.178 – 10.3.207.178 | 10.3.207.178 |
| 180 | 10.3.207.179/32 | 10.3.207.179 – 10.3.207.179 | 10.3.207.179 |
| 181 | 10.3.207.180/32 | 10.3.207.180 – 10.3.207.180 | 10.3.207.180 |
| 182 | 10.3.207.181/32 | 10.3.207.181 – 10.3.207.181 | 10.3.207.181 |
| 183 | 10.3.207.182/32 | 10.3.207.182 – 10.3.207.182 | 10.3.207.182 |
| 184 | 10.3.207.183/32 | 10.3.207.183 – 10.3.207.183 | 10.3.207.183 |
| 185 | 10.3.207.184/32 | 10.3.207.184 – 10.3.207.184 | 10.3.207.184 |
| 186 | 10.3.207.185/32 | 10.3.207.185 – 10.3.207.185 | 10.3.207.185 |
| 187 | 10.3.207.186/32 | 10.3.207.186 – 10.3.207.186 | 10.3.207.186 |
| 188 | 10.3.207.187/32 | 10.3.207.187 – 10.3.207.187 | 10.3.207.187 |
| 189 | 10.3.207.188/32 | 10.3.207.188 – 10.3.207.188 | 10.3.207.188 |
| 190 | 10.3.207.189/32 | 10.3.207.189 – 10.3.207.189 | 10.3.207.189 |
| 191 | 10.3.207.190/32 | 10.3.207.190 – 10.3.207.190 | 10.3.207.190 |
| 192 | 10.3.207.191/32 | 10.3.207.191 – 10.3.207.191 | 10.3.207.191 |
| 193 | 10.3.207.192/32 | 10.3.207.192 – 10.3.207.192 | 10.3.207.192 |
| 194 | 10.3.207.193/32 | 10.3.207.193 – 10.3.207.193 | 10.3.207.193 |
| 195 | 10.3.207.194/32 | 10.3.207.194 – 10.3.207.194 | 10.3.207.194 |
| 196 | 10.3.207.195/32 | 10.3.207.195 – 10.3.207.195 | 10.3.207.195 |
| 197 | 10.3.207.196/32 | 10.3.207.196 – 10.3.207.196 | 10.3.207.196 |
| 198 | 10.3.207.197/32 | 10.3.207.197 – 10.3.207.197 | 10.3.207.197 |
| 199 | 10.3.207.198/32 | 10.3.207.198 – 10.3.207.198 | 10.3.207.198 |
| 200 | 10.3.207.199/32 | 10.3.207.199 – 10.3.207.199 | 10.3.207.199 |
| 201 | 10.3.207.200/32 | 10.3.207.200 – 10.3.207.200 | 10.3.207.200 |
| 202 | 10.3.207.201/32 | 10.3.207.201 – 10.3.207.201 | 10.3.207.201 |
| 203 | 10.3.207.202/32 | 10.3.207.202 – 10.3.207.202 | 10.3.207.202 |
| 204 | 10.3.207.203/32 | 10.3.207.203 – 10.3.207.203 | 10.3.207.203 |
| 205 | 10.3.207.204/32 | 10.3.207.204 – 10.3.207.204 | 10.3.207.204 |
| 206 | 10.3.207.205/32 | 10.3.207.205 – 10.3.207.205 | 10.3.207.205 |
| 207 | 10.3.207.206/32 | 10.3.207.206 – 10.3.207.206 | 10.3.207.206 |
| 208 | 10.3.207.207/32 | 10.3.207.207 – 10.3.207.207 | 10.3.207.207 |
| 209 | 10.3.207.208/32 | 10.3.207.208 – 10.3.207.208 | 10.3.207.208 |
| 210 | 10.3.207.209/32 | 10.3.207.209 – 10.3.207.209 | 10.3.207.209 |
| 211 | 10.3.207.210/32 | 10.3.207.210 – 10.3.207.210 | 10.3.207.210 |
| 212 | 10.3.207.211/32 | 10.3.207.211 – 10.3.207.211 | 10.3.207.211 |
| 213 | 10.3.207.212/32 | 10.3.207.212 – 10.3.207.212 | 10.3.207.212 |
| 214 | 10.3.207.213/32 | 10.3.207.213 – 10.3.207.213 | 10.3.207.213 |
| 215 | 10.3.207.214/32 | 10.3.207.214 – 10.3.207.214 | 10.3.207.214 |
| 216 | 10.3.207.215/32 | 10.3.207.215 – 10.3.207.215 | 10.3.207.215 |
| 217 | 10.3.207.216/32 | 10.3.207.216 – 10.3.207.216 | 10.3.207.216 |
| 218 | 10.3.207.217/32 | 10.3.207.217 – 10.3.207.217 | 10.3.207.217 |
| 219 | 10.3.207.218/32 | 10.3.207.218 – 10.3.207.218 | 10.3.207.218 |
| 220 | 10.3.207.219/32 | 10.3.207.219 – 10.3.207.219 | 10.3.207.219 |
| 221 | 10.3.207.220/32 | 10.3.207.220 – 10.3.207.220 | 10.3.207.220 |
| 222 | 10.3.207.221/32 | 10.3.207.221 – 10.3.207.221 | 10.3.207.221 |
| 223 | 10.3.207.222/32 | 10.3.207.222 – 10.3.207.222 | 10.3.207.222 |
| 224 | 10.3.207.223/32 | 10.3.207.223 – 10.3.207.223 | 10.3.207.223 |
| 225 | 10.3.207.224/32 | 10.3.207.224 – 10.3.207.224 | 10.3.207.224 |
| 226 | 10.3.207.225/32 | 10.3.207.225 – 10.3.207.225 | 10.3.207.225 |
| 227 | 10.3.207.226/32 | 10.3.207.226 – 10.3.207.226 | 10.3.207.226 |
| 228 | 10.3.207.227/32 | 10.3.207.227 – 10.3.207.227 | 10.3.207.227 |
| 229 | 10.3.207.228/32 | 10.3.207.228 – 10.3.207.228 | 10.3.207.228 |
| 230 | 10.3.207.229/32 | 10.3.207.229 – 10.3.207.229 | 10.3.207.229 |
| 231 | 10.3.207.230/32 | 10.3.207.230 – 10.3.207.230 | 10.3.207.230 |
| 232 | 10.3.207.231/32 | 10.3.207.231 – 10.3.207.231 | 10.3.207.231 |
| 233 | 10.3.207.232/32 | 10.3.207.232 – 10.3.207.232 | 10.3.207.232 |
| 234 | 10.3.207.233/32 | 10.3.207.233 – 10.3.207.233 | 10.3.207.233 |
| 235 | 10.3.207.234/32 | 10.3.207.234 – 10.3.207.234 | 10.3.207.234 |
| 236 | 10.3.207.235/32 | 10.3.207.235 – 10.3.207.235 | 10.3.207.235 |
| 237 | 10.3.207.236/32 | 10.3.207.236 – 10.3.207.236 | 10.3.207.236 |
| 238 | 10.3.207.237/32 | 10.3.207.237 – 10.3.207.237 | 10.3.207.237 |
| 239 | 10.3.207.238/32 | 10.3.207.238 – 10.3.207.238 | 10.3.207.238 |
| 240 | 10.3.207.239/32 | 10.3.207.239 – 10.3.207.239 | 10.3.207.239 |
| 241 | 10.3.207.240/32 | 10.3.207.240 – 10.3.207.240 | 10.3.207.240 |
| 242 | 10.3.207.241/32 | 10.3.207.241 – 10.3.207.241 | 10.3.207.241 |
| 243 | 10.3.207.242/32 | 10.3.207.242 – 10.3.207.242 | 10.3.207.242 |
| 244 | 10.3.207.243/32 | 10.3.207.243 – 10.3.207.243 | 10.3.207.243 |
| 245 | 10.3.207.244/32 | 10.3.207.244 – 10.3.207.244 | 10.3.207.244 |
| 246 | 10.3.207.245/32 | 10.3.207.245 – 10.3.207.245 | 10.3.207.245 |
| 247 | 10.3.207.246/32 | 10.3.207.246 – 10.3.207.246 | 10.3.207.246 |
| 248 | 10.3.207.247/32 | 10.3.207.247 – 10.3.207.247 | 10.3.207.247 |
| 249 | 10.3.207.248/32 | 10.3.207.248 – 10.3.207.248 | 10.3.207.248 |
| 250 | 10.3.207.249/32 | 10.3.207.249 – 10.3.207.249 | 10.3.207.249 |
| 251 | 10.3.207.250/32 | 10.3.207.250 – 10.3.207.250 | 10.3.207.250 |
| 252 | 10.3.207.251/32 | 10.3.207.251 – 10.3.207.251 | 10.3.207.251 |
| 253 | 10.3.207.252/32 | 10.3.207.252 – 10.3.207.252 | 10.3.207.252 |
| 254 | 10.3.207.253/32 | 10.3.207.253 – 10.3.207.253 | 10.3.207.253 |
| 255 | 10.3.207.254/32 | 10.3.207.254 – 10.3.207.254 | 10.3.207.254 |
| 256 | 10.3.207.255/32 | 10.3.207.255 – 10.3.207.255 | 10.3.207.255 |
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 /24 |
|---|---|---|---|---|
| /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 | - |
| /23 | 255.255.254.0 | 512 | 510 | - |
| /24 | 255.255.255.0 | 256 | 254 | 1 |
| /25 | 255.255.255.128 | 128 | 126 | 2 split → |
| /26 | 255.255.255.192 | 64 | 62 | 4 split → |
| /27 | 255.255.255.224 | 32 | 30 | 8 split → |
| /28 | 255.255.255.240 | 16 | 14 | 16 split → |
| /29 | 255.255.255.248 | 8 | 6 | 32 split → |
| /30 | 255.255.255.252 | 4 | 2 | 64 split → |
| /31 | 255.255.255.254 | 2 | 2 | 128 split → |
| /32 | 255.255.255.255 | 1 | 1 | 256 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.