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)10.7.216.0/21
network10.7.216.0/21
broadcast10.7.223.255
first host10.7.216.1
last host10.7.223.254
subnet mask255.255.248.0
wildcard0.0.7.255
addresses2,048
usable hosts2,046
classA
ipcalc 10.7.216.0/21
address00001010.00000111.11011000.00000000
subnet mask11111111.11111111.11111000.00000000
network00001010.00000111.11011000.00000000
broadcast00001010.00000111.11011111.11111111
green = network part, grey = host part
hex0x0a07d800
decimal168286208
reverse dns0.216.7.10.in-addr.arpa
ipv4-mapped::ffff:a07:d800
/21 split into /32 · 2,048 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.7.216.0/32 | 10.7.216.0 – 10.7.216.0 | 10.7.216.0 |
| 2 | 10.7.216.1/32 | 10.7.216.1 – 10.7.216.1 | 10.7.216.1 |
| 3 | 10.7.216.2/32 | 10.7.216.2 – 10.7.216.2 | 10.7.216.2 |
| 4 | 10.7.216.3/32 | 10.7.216.3 – 10.7.216.3 | 10.7.216.3 |
| 5 | 10.7.216.4/32 | 10.7.216.4 – 10.7.216.4 | 10.7.216.4 |
| 6 | 10.7.216.5/32 | 10.7.216.5 – 10.7.216.5 | 10.7.216.5 |
| 7 | 10.7.216.6/32 | 10.7.216.6 – 10.7.216.6 | 10.7.216.6 |
| 8 | 10.7.216.7/32 | 10.7.216.7 – 10.7.216.7 | 10.7.216.7 |
| 9 | 10.7.216.8/32 | 10.7.216.8 – 10.7.216.8 | 10.7.216.8 |
| 10 | 10.7.216.9/32 | 10.7.216.9 – 10.7.216.9 | 10.7.216.9 |
| 11 | 10.7.216.10/32 | 10.7.216.10 – 10.7.216.10 | 10.7.216.10 |
| 12 | 10.7.216.11/32 | 10.7.216.11 – 10.7.216.11 | 10.7.216.11 |
| 13 | 10.7.216.12/32 | 10.7.216.12 – 10.7.216.12 | 10.7.216.12 |
| 14 | 10.7.216.13/32 | 10.7.216.13 – 10.7.216.13 | 10.7.216.13 |
| 15 | 10.7.216.14/32 | 10.7.216.14 – 10.7.216.14 | 10.7.216.14 |
| 16 | 10.7.216.15/32 | 10.7.216.15 – 10.7.216.15 | 10.7.216.15 |
| 17 | 10.7.216.16/32 | 10.7.216.16 – 10.7.216.16 | 10.7.216.16 |
| 18 | 10.7.216.17/32 | 10.7.216.17 – 10.7.216.17 | 10.7.216.17 |
| 19 | 10.7.216.18/32 | 10.7.216.18 – 10.7.216.18 | 10.7.216.18 |
| 20 | 10.7.216.19/32 | 10.7.216.19 – 10.7.216.19 | 10.7.216.19 |
| 21 | 10.7.216.20/32 | 10.7.216.20 – 10.7.216.20 | 10.7.216.20 |
| 22 | 10.7.216.21/32 | 10.7.216.21 – 10.7.216.21 | 10.7.216.21 |
| 23 | 10.7.216.22/32 | 10.7.216.22 – 10.7.216.22 | 10.7.216.22 |
| 24 | 10.7.216.23/32 | 10.7.216.23 – 10.7.216.23 | 10.7.216.23 |
| 25 | 10.7.216.24/32 | 10.7.216.24 – 10.7.216.24 | 10.7.216.24 |
| 26 | 10.7.216.25/32 | 10.7.216.25 – 10.7.216.25 | 10.7.216.25 |
| 27 | 10.7.216.26/32 | 10.7.216.26 – 10.7.216.26 | 10.7.216.26 |
| 28 | 10.7.216.27/32 | 10.7.216.27 – 10.7.216.27 | 10.7.216.27 |
| 29 | 10.7.216.28/32 | 10.7.216.28 – 10.7.216.28 | 10.7.216.28 |
| 30 | 10.7.216.29/32 | 10.7.216.29 – 10.7.216.29 | 10.7.216.29 |
| 31 | 10.7.216.30/32 | 10.7.216.30 – 10.7.216.30 | 10.7.216.30 |
| 32 | 10.7.216.31/32 | 10.7.216.31 – 10.7.216.31 | 10.7.216.31 |
| 33 | 10.7.216.32/32 | 10.7.216.32 – 10.7.216.32 | 10.7.216.32 |
| 34 | 10.7.216.33/32 | 10.7.216.33 – 10.7.216.33 | 10.7.216.33 |
| 35 | 10.7.216.34/32 | 10.7.216.34 – 10.7.216.34 | 10.7.216.34 |
| 36 | 10.7.216.35/32 | 10.7.216.35 – 10.7.216.35 | 10.7.216.35 |
| 37 | 10.7.216.36/32 | 10.7.216.36 – 10.7.216.36 | 10.7.216.36 |
| 38 | 10.7.216.37/32 | 10.7.216.37 – 10.7.216.37 | 10.7.216.37 |
| 39 | 10.7.216.38/32 | 10.7.216.38 – 10.7.216.38 | 10.7.216.38 |
| 40 | 10.7.216.39/32 | 10.7.216.39 – 10.7.216.39 | 10.7.216.39 |
| 41 | 10.7.216.40/32 | 10.7.216.40 – 10.7.216.40 | 10.7.216.40 |
| 42 | 10.7.216.41/32 | 10.7.216.41 – 10.7.216.41 | 10.7.216.41 |
| 43 | 10.7.216.42/32 | 10.7.216.42 – 10.7.216.42 | 10.7.216.42 |
| 44 | 10.7.216.43/32 | 10.7.216.43 – 10.7.216.43 | 10.7.216.43 |
| 45 | 10.7.216.44/32 | 10.7.216.44 – 10.7.216.44 | 10.7.216.44 |
| 46 | 10.7.216.45/32 | 10.7.216.45 – 10.7.216.45 | 10.7.216.45 |
| 47 | 10.7.216.46/32 | 10.7.216.46 – 10.7.216.46 | 10.7.216.46 |
| 48 | 10.7.216.47/32 | 10.7.216.47 – 10.7.216.47 | 10.7.216.47 |
| 49 | 10.7.216.48/32 | 10.7.216.48 – 10.7.216.48 | 10.7.216.48 |
| 50 | 10.7.216.49/32 | 10.7.216.49 – 10.7.216.49 | 10.7.216.49 |
| 51 | 10.7.216.50/32 | 10.7.216.50 – 10.7.216.50 | 10.7.216.50 |
| 52 | 10.7.216.51/32 | 10.7.216.51 – 10.7.216.51 | 10.7.216.51 |
| 53 | 10.7.216.52/32 | 10.7.216.52 – 10.7.216.52 | 10.7.216.52 |
| 54 | 10.7.216.53/32 | 10.7.216.53 – 10.7.216.53 | 10.7.216.53 |
| 55 | 10.7.216.54/32 | 10.7.216.54 – 10.7.216.54 | 10.7.216.54 |
| 56 | 10.7.216.55/32 | 10.7.216.55 – 10.7.216.55 | 10.7.216.55 |
| 57 | 10.7.216.56/32 | 10.7.216.56 – 10.7.216.56 | 10.7.216.56 |
| 58 | 10.7.216.57/32 | 10.7.216.57 – 10.7.216.57 | 10.7.216.57 |
| 59 | 10.7.216.58/32 | 10.7.216.58 – 10.7.216.58 | 10.7.216.58 |
| 60 | 10.7.216.59/32 | 10.7.216.59 – 10.7.216.59 | 10.7.216.59 |
| 61 | 10.7.216.60/32 | 10.7.216.60 – 10.7.216.60 | 10.7.216.60 |
| 62 | 10.7.216.61/32 | 10.7.216.61 – 10.7.216.61 | 10.7.216.61 |
| 63 | 10.7.216.62/32 | 10.7.216.62 – 10.7.216.62 | 10.7.216.62 |
| 64 | 10.7.216.63/32 | 10.7.216.63 – 10.7.216.63 | 10.7.216.63 |
| 65 | 10.7.216.64/32 | 10.7.216.64 – 10.7.216.64 | 10.7.216.64 |
| 66 | 10.7.216.65/32 | 10.7.216.65 – 10.7.216.65 | 10.7.216.65 |
| 67 | 10.7.216.66/32 | 10.7.216.66 – 10.7.216.66 | 10.7.216.66 |
| 68 | 10.7.216.67/32 | 10.7.216.67 – 10.7.216.67 | 10.7.216.67 |
| 69 | 10.7.216.68/32 | 10.7.216.68 – 10.7.216.68 | 10.7.216.68 |
| 70 | 10.7.216.69/32 | 10.7.216.69 – 10.7.216.69 | 10.7.216.69 |
| 71 | 10.7.216.70/32 | 10.7.216.70 – 10.7.216.70 | 10.7.216.70 |
| 72 | 10.7.216.71/32 | 10.7.216.71 – 10.7.216.71 | 10.7.216.71 |
| 73 | 10.7.216.72/32 | 10.7.216.72 – 10.7.216.72 | 10.7.216.72 |
| 74 | 10.7.216.73/32 | 10.7.216.73 – 10.7.216.73 | 10.7.216.73 |
| 75 | 10.7.216.74/32 | 10.7.216.74 – 10.7.216.74 | 10.7.216.74 |
| 76 | 10.7.216.75/32 | 10.7.216.75 – 10.7.216.75 | 10.7.216.75 |
| 77 | 10.7.216.76/32 | 10.7.216.76 – 10.7.216.76 | 10.7.216.76 |
| 78 | 10.7.216.77/32 | 10.7.216.77 – 10.7.216.77 | 10.7.216.77 |
| 79 | 10.7.216.78/32 | 10.7.216.78 – 10.7.216.78 | 10.7.216.78 |
| 80 | 10.7.216.79/32 | 10.7.216.79 – 10.7.216.79 | 10.7.216.79 |
| 81 | 10.7.216.80/32 | 10.7.216.80 – 10.7.216.80 | 10.7.216.80 |
| 82 | 10.7.216.81/32 | 10.7.216.81 – 10.7.216.81 | 10.7.216.81 |
| 83 | 10.7.216.82/32 | 10.7.216.82 – 10.7.216.82 | 10.7.216.82 |
| 84 | 10.7.216.83/32 | 10.7.216.83 – 10.7.216.83 | 10.7.216.83 |
| 85 | 10.7.216.84/32 | 10.7.216.84 – 10.7.216.84 | 10.7.216.84 |
| 86 | 10.7.216.85/32 | 10.7.216.85 – 10.7.216.85 | 10.7.216.85 |
| 87 | 10.7.216.86/32 | 10.7.216.86 – 10.7.216.86 | 10.7.216.86 |
| 88 | 10.7.216.87/32 | 10.7.216.87 – 10.7.216.87 | 10.7.216.87 |
| 89 | 10.7.216.88/32 | 10.7.216.88 – 10.7.216.88 | 10.7.216.88 |
| 90 | 10.7.216.89/32 | 10.7.216.89 – 10.7.216.89 | 10.7.216.89 |
| 91 | 10.7.216.90/32 | 10.7.216.90 – 10.7.216.90 | 10.7.216.90 |
| 92 | 10.7.216.91/32 | 10.7.216.91 – 10.7.216.91 | 10.7.216.91 |
| 93 | 10.7.216.92/32 | 10.7.216.92 – 10.7.216.92 | 10.7.216.92 |
| 94 | 10.7.216.93/32 | 10.7.216.93 – 10.7.216.93 | 10.7.216.93 |
| 95 | 10.7.216.94/32 | 10.7.216.94 – 10.7.216.94 | 10.7.216.94 |
| 96 | 10.7.216.95/32 | 10.7.216.95 – 10.7.216.95 | 10.7.216.95 |
| 97 | 10.7.216.96/32 | 10.7.216.96 – 10.7.216.96 | 10.7.216.96 |
| 98 | 10.7.216.97/32 | 10.7.216.97 – 10.7.216.97 | 10.7.216.97 |
| 99 | 10.7.216.98/32 | 10.7.216.98 – 10.7.216.98 | 10.7.216.98 |
| 100 | 10.7.216.99/32 | 10.7.216.99 – 10.7.216.99 | 10.7.216.99 |
| 101 | 10.7.216.100/32 | 10.7.216.100 – 10.7.216.100 | 10.7.216.100 |
| 102 | 10.7.216.101/32 | 10.7.216.101 – 10.7.216.101 | 10.7.216.101 |
| 103 | 10.7.216.102/32 | 10.7.216.102 – 10.7.216.102 | 10.7.216.102 |
| 104 | 10.7.216.103/32 | 10.7.216.103 – 10.7.216.103 | 10.7.216.103 |
| 105 | 10.7.216.104/32 | 10.7.216.104 – 10.7.216.104 | 10.7.216.104 |
| 106 | 10.7.216.105/32 | 10.7.216.105 – 10.7.216.105 | 10.7.216.105 |
| 107 | 10.7.216.106/32 | 10.7.216.106 – 10.7.216.106 | 10.7.216.106 |
| 108 | 10.7.216.107/32 | 10.7.216.107 – 10.7.216.107 | 10.7.216.107 |
| 109 | 10.7.216.108/32 | 10.7.216.108 – 10.7.216.108 | 10.7.216.108 |
| 110 | 10.7.216.109/32 | 10.7.216.109 – 10.7.216.109 | 10.7.216.109 |
| 111 | 10.7.216.110/32 | 10.7.216.110 – 10.7.216.110 | 10.7.216.110 |
| 112 | 10.7.216.111/32 | 10.7.216.111 – 10.7.216.111 | 10.7.216.111 |
| 113 | 10.7.216.112/32 | 10.7.216.112 – 10.7.216.112 | 10.7.216.112 |
| 114 | 10.7.216.113/32 | 10.7.216.113 – 10.7.216.113 | 10.7.216.113 |
| 115 | 10.7.216.114/32 | 10.7.216.114 – 10.7.216.114 | 10.7.216.114 |
| 116 | 10.7.216.115/32 | 10.7.216.115 – 10.7.216.115 | 10.7.216.115 |
| 117 | 10.7.216.116/32 | 10.7.216.116 – 10.7.216.116 | 10.7.216.116 |
| 118 | 10.7.216.117/32 | 10.7.216.117 – 10.7.216.117 | 10.7.216.117 |
| 119 | 10.7.216.118/32 | 10.7.216.118 – 10.7.216.118 | 10.7.216.118 |
| 120 | 10.7.216.119/32 | 10.7.216.119 – 10.7.216.119 | 10.7.216.119 |
| 121 | 10.7.216.120/32 | 10.7.216.120 – 10.7.216.120 | 10.7.216.120 |
| 122 | 10.7.216.121/32 | 10.7.216.121 – 10.7.216.121 | 10.7.216.121 |
| 123 | 10.7.216.122/32 | 10.7.216.122 – 10.7.216.122 | 10.7.216.122 |
| 124 | 10.7.216.123/32 | 10.7.216.123 – 10.7.216.123 | 10.7.216.123 |
| 125 | 10.7.216.124/32 | 10.7.216.124 – 10.7.216.124 | 10.7.216.124 |
| 126 | 10.7.216.125/32 | 10.7.216.125 – 10.7.216.125 | 10.7.216.125 |
| 127 | 10.7.216.126/32 | 10.7.216.126 – 10.7.216.126 | 10.7.216.126 |
| 128 | 10.7.216.127/32 | 10.7.216.127 – 10.7.216.127 | 10.7.216.127 |
| 129 | 10.7.216.128/32 | 10.7.216.128 – 10.7.216.128 | 10.7.216.128 |
| 130 | 10.7.216.129/32 | 10.7.216.129 – 10.7.216.129 | 10.7.216.129 |
| 131 | 10.7.216.130/32 | 10.7.216.130 – 10.7.216.130 | 10.7.216.130 |
| 132 | 10.7.216.131/32 | 10.7.216.131 – 10.7.216.131 | 10.7.216.131 |
| 133 | 10.7.216.132/32 | 10.7.216.132 – 10.7.216.132 | 10.7.216.132 |
| 134 | 10.7.216.133/32 | 10.7.216.133 – 10.7.216.133 | 10.7.216.133 |
| 135 | 10.7.216.134/32 | 10.7.216.134 – 10.7.216.134 | 10.7.216.134 |
| 136 | 10.7.216.135/32 | 10.7.216.135 – 10.7.216.135 | 10.7.216.135 |
| 137 | 10.7.216.136/32 | 10.7.216.136 – 10.7.216.136 | 10.7.216.136 |
| 138 | 10.7.216.137/32 | 10.7.216.137 – 10.7.216.137 | 10.7.216.137 |
| 139 | 10.7.216.138/32 | 10.7.216.138 – 10.7.216.138 | 10.7.216.138 |
| 140 | 10.7.216.139/32 | 10.7.216.139 – 10.7.216.139 | 10.7.216.139 |
| 141 | 10.7.216.140/32 | 10.7.216.140 – 10.7.216.140 | 10.7.216.140 |
| 142 | 10.7.216.141/32 | 10.7.216.141 – 10.7.216.141 | 10.7.216.141 |
| 143 | 10.7.216.142/32 | 10.7.216.142 – 10.7.216.142 | 10.7.216.142 |
| 144 | 10.7.216.143/32 | 10.7.216.143 – 10.7.216.143 | 10.7.216.143 |
| 145 | 10.7.216.144/32 | 10.7.216.144 – 10.7.216.144 | 10.7.216.144 |
| 146 | 10.7.216.145/32 | 10.7.216.145 – 10.7.216.145 | 10.7.216.145 |
| 147 | 10.7.216.146/32 | 10.7.216.146 – 10.7.216.146 | 10.7.216.146 |
| 148 | 10.7.216.147/32 | 10.7.216.147 – 10.7.216.147 | 10.7.216.147 |
| 149 | 10.7.216.148/32 | 10.7.216.148 – 10.7.216.148 | 10.7.216.148 |
| 150 | 10.7.216.149/32 | 10.7.216.149 – 10.7.216.149 | 10.7.216.149 |
| 151 | 10.7.216.150/32 | 10.7.216.150 – 10.7.216.150 | 10.7.216.150 |
| 152 | 10.7.216.151/32 | 10.7.216.151 – 10.7.216.151 | 10.7.216.151 |
| 153 | 10.7.216.152/32 | 10.7.216.152 – 10.7.216.152 | 10.7.216.152 |
| 154 | 10.7.216.153/32 | 10.7.216.153 – 10.7.216.153 | 10.7.216.153 |
| 155 | 10.7.216.154/32 | 10.7.216.154 – 10.7.216.154 | 10.7.216.154 |
| 156 | 10.7.216.155/32 | 10.7.216.155 – 10.7.216.155 | 10.7.216.155 |
| 157 | 10.7.216.156/32 | 10.7.216.156 – 10.7.216.156 | 10.7.216.156 |
| 158 | 10.7.216.157/32 | 10.7.216.157 – 10.7.216.157 | 10.7.216.157 |
| 159 | 10.7.216.158/32 | 10.7.216.158 – 10.7.216.158 | 10.7.216.158 |
| 160 | 10.7.216.159/32 | 10.7.216.159 – 10.7.216.159 | 10.7.216.159 |
| 161 | 10.7.216.160/32 | 10.7.216.160 – 10.7.216.160 | 10.7.216.160 |
| 162 | 10.7.216.161/32 | 10.7.216.161 – 10.7.216.161 | 10.7.216.161 |
| 163 | 10.7.216.162/32 | 10.7.216.162 – 10.7.216.162 | 10.7.216.162 |
| 164 | 10.7.216.163/32 | 10.7.216.163 – 10.7.216.163 | 10.7.216.163 |
| 165 | 10.7.216.164/32 | 10.7.216.164 – 10.7.216.164 | 10.7.216.164 |
| 166 | 10.7.216.165/32 | 10.7.216.165 – 10.7.216.165 | 10.7.216.165 |
| 167 | 10.7.216.166/32 | 10.7.216.166 – 10.7.216.166 | 10.7.216.166 |
| 168 | 10.7.216.167/32 | 10.7.216.167 – 10.7.216.167 | 10.7.216.167 |
| 169 | 10.7.216.168/32 | 10.7.216.168 – 10.7.216.168 | 10.7.216.168 |
| 170 | 10.7.216.169/32 | 10.7.216.169 – 10.7.216.169 | 10.7.216.169 |
| 171 | 10.7.216.170/32 | 10.7.216.170 – 10.7.216.170 | 10.7.216.170 |
| 172 | 10.7.216.171/32 | 10.7.216.171 – 10.7.216.171 | 10.7.216.171 |
| 173 | 10.7.216.172/32 | 10.7.216.172 – 10.7.216.172 | 10.7.216.172 |
| 174 | 10.7.216.173/32 | 10.7.216.173 – 10.7.216.173 | 10.7.216.173 |
| 175 | 10.7.216.174/32 | 10.7.216.174 – 10.7.216.174 | 10.7.216.174 |
| 176 | 10.7.216.175/32 | 10.7.216.175 – 10.7.216.175 | 10.7.216.175 |
| 177 | 10.7.216.176/32 | 10.7.216.176 – 10.7.216.176 | 10.7.216.176 |
| 178 | 10.7.216.177/32 | 10.7.216.177 – 10.7.216.177 | 10.7.216.177 |
| 179 | 10.7.216.178/32 | 10.7.216.178 – 10.7.216.178 | 10.7.216.178 |
| 180 | 10.7.216.179/32 | 10.7.216.179 – 10.7.216.179 | 10.7.216.179 |
| 181 | 10.7.216.180/32 | 10.7.216.180 – 10.7.216.180 | 10.7.216.180 |
| 182 | 10.7.216.181/32 | 10.7.216.181 – 10.7.216.181 | 10.7.216.181 |
| 183 | 10.7.216.182/32 | 10.7.216.182 – 10.7.216.182 | 10.7.216.182 |
| 184 | 10.7.216.183/32 | 10.7.216.183 – 10.7.216.183 | 10.7.216.183 |
| 185 | 10.7.216.184/32 | 10.7.216.184 – 10.7.216.184 | 10.7.216.184 |
| 186 | 10.7.216.185/32 | 10.7.216.185 – 10.7.216.185 | 10.7.216.185 |
| 187 | 10.7.216.186/32 | 10.7.216.186 – 10.7.216.186 | 10.7.216.186 |
| 188 | 10.7.216.187/32 | 10.7.216.187 – 10.7.216.187 | 10.7.216.187 |
| 189 | 10.7.216.188/32 | 10.7.216.188 – 10.7.216.188 | 10.7.216.188 |
| 190 | 10.7.216.189/32 | 10.7.216.189 – 10.7.216.189 | 10.7.216.189 |
| 191 | 10.7.216.190/32 | 10.7.216.190 – 10.7.216.190 | 10.7.216.190 |
| 192 | 10.7.216.191/32 | 10.7.216.191 – 10.7.216.191 | 10.7.216.191 |
| 193 | 10.7.216.192/32 | 10.7.216.192 – 10.7.216.192 | 10.7.216.192 |
| 194 | 10.7.216.193/32 | 10.7.216.193 – 10.7.216.193 | 10.7.216.193 |
| 195 | 10.7.216.194/32 | 10.7.216.194 – 10.7.216.194 | 10.7.216.194 |
| 196 | 10.7.216.195/32 | 10.7.216.195 – 10.7.216.195 | 10.7.216.195 |
| 197 | 10.7.216.196/32 | 10.7.216.196 – 10.7.216.196 | 10.7.216.196 |
| 198 | 10.7.216.197/32 | 10.7.216.197 – 10.7.216.197 | 10.7.216.197 |
| 199 | 10.7.216.198/32 | 10.7.216.198 – 10.7.216.198 | 10.7.216.198 |
| 200 | 10.7.216.199/32 | 10.7.216.199 – 10.7.216.199 | 10.7.216.199 |
| 201 | 10.7.216.200/32 | 10.7.216.200 – 10.7.216.200 | 10.7.216.200 |
| 202 | 10.7.216.201/32 | 10.7.216.201 – 10.7.216.201 | 10.7.216.201 |
| 203 | 10.7.216.202/32 | 10.7.216.202 – 10.7.216.202 | 10.7.216.202 |
| 204 | 10.7.216.203/32 | 10.7.216.203 – 10.7.216.203 | 10.7.216.203 |
| 205 | 10.7.216.204/32 | 10.7.216.204 – 10.7.216.204 | 10.7.216.204 |
| 206 | 10.7.216.205/32 | 10.7.216.205 – 10.7.216.205 | 10.7.216.205 |
| 207 | 10.7.216.206/32 | 10.7.216.206 – 10.7.216.206 | 10.7.216.206 |
| 208 | 10.7.216.207/32 | 10.7.216.207 – 10.7.216.207 | 10.7.216.207 |
| 209 | 10.7.216.208/32 | 10.7.216.208 – 10.7.216.208 | 10.7.216.208 |
| 210 | 10.7.216.209/32 | 10.7.216.209 – 10.7.216.209 | 10.7.216.209 |
| 211 | 10.7.216.210/32 | 10.7.216.210 – 10.7.216.210 | 10.7.216.210 |
| 212 | 10.7.216.211/32 | 10.7.216.211 – 10.7.216.211 | 10.7.216.211 |
| 213 | 10.7.216.212/32 | 10.7.216.212 – 10.7.216.212 | 10.7.216.212 |
| 214 | 10.7.216.213/32 | 10.7.216.213 – 10.7.216.213 | 10.7.216.213 |
| 215 | 10.7.216.214/32 | 10.7.216.214 – 10.7.216.214 | 10.7.216.214 |
| 216 | 10.7.216.215/32 | 10.7.216.215 – 10.7.216.215 | 10.7.216.215 |
| 217 | 10.7.216.216/32 | 10.7.216.216 – 10.7.216.216 | 10.7.216.216 |
| 218 | 10.7.216.217/32 | 10.7.216.217 – 10.7.216.217 | 10.7.216.217 |
| 219 | 10.7.216.218/32 | 10.7.216.218 – 10.7.216.218 | 10.7.216.218 |
| 220 | 10.7.216.219/32 | 10.7.216.219 – 10.7.216.219 | 10.7.216.219 |
| 221 | 10.7.216.220/32 | 10.7.216.220 – 10.7.216.220 | 10.7.216.220 |
| 222 | 10.7.216.221/32 | 10.7.216.221 – 10.7.216.221 | 10.7.216.221 |
| 223 | 10.7.216.222/32 | 10.7.216.222 – 10.7.216.222 | 10.7.216.222 |
| 224 | 10.7.216.223/32 | 10.7.216.223 – 10.7.216.223 | 10.7.216.223 |
| 225 | 10.7.216.224/32 | 10.7.216.224 – 10.7.216.224 | 10.7.216.224 |
| 226 | 10.7.216.225/32 | 10.7.216.225 – 10.7.216.225 | 10.7.216.225 |
| 227 | 10.7.216.226/32 | 10.7.216.226 – 10.7.216.226 | 10.7.216.226 |
| 228 | 10.7.216.227/32 | 10.7.216.227 – 10.7.216.227 | 10.7.216.227 |
| 229 | 10.7.216.228/32 | 10.7.216.228 – 10.7.216.228 | 10.7.216.228 |
| 230 | 10.7.216.229/32 | 10.7.216.229 – 10.7.216.229 | 10.7.216.229 |
| 231 | 10.7.216.230/32 | 10.7.216.230 – 10.7.216.230 | 10.7.216.230 |
| 232 | 10.7.216.231/32 | 10.7.216.231 – 10.7.216.231 | 10.7.216.231 |
| 233 | 10.7.216.232/32 | 10.7.216.232 – 10.7.216.232 | 10.7.216.232 |
| 234 | 10.7.216.233/32 | 10.7.216.233 – 10.7.216.233 | 10.7.216.233 |
| 235 | 10.7.216.234/32 | 10.7.216.234 – 10.7.216.234 | 10.7.216.234 |
| 236 | 10.7.216.235/32 | 10.7.216.235 – 10.7.216.235 | 10.7.216.235 |
| 237 | 10.7.216.236/32 | 10.7.216.236 – 10.7.216.236 | 10.7.216.236 |
| 238 | 10.7.216.237/32 | 10.7.216.237 – 10.7.216.237 | 10.7.216.237 |
| 239 | 10.7.216.238/32 | 10.7.216.238 – 10.7.216.238 | 10.7.216.238 |
| 240 | 10.7.216.239/32 | 10.7.216.239 – 10.7.216.239 | 10.7.216.239 |
| 241 | 10.7.216.240/32 | 10.7.216.240 – 10.7.216.240 | 10.7.216.240 |
| 242 | 10.7.216.241/32 | 10.7.216.241 – 10.7.216.241 | 10.7.216.241 |
| 243 | 10.7.216.242/32 | 10.7.216.242 – 10.7.216.242 | 10.7.216.242 |
| 244 | 10.7.216.243/32 | 10.7.216.243 – 10.7.216.243 | 10.7.216.243 |
| 245 | 10.7.216.244/32 | 10.7.216.244 – 10.7.216.244 | 10.7.216.244 |
| 246 | 10.7.216.245/32 | 10.7.216.245 – 10.7.216.245 | 10.7.216.245 |
| 247 | 10.7.216.246/32 | 10.7.216.246 – 10.7.216.246 | 10.7.216.246 |
| 248 | 10.7.216.247/32 | 10.7.216.247 – 10.7.216.247 | 10.7.216.247 |
| 249 | 10.7.216.248/32 | 10.7.216.248 – 10.7.216.248 | 10.7.216.248 |
| 250 | 10.7.216.249/32 | 10.7.216.249 – 10.7.216.249 | 10.7.216.249 |
| 251 | 10.7.216.250/32 | 10.7.216.250 – 10.7.216.250 | 10.7.216.250 |
| 252 | 10.7.216.251/32 | 10.7.216.251 – 10.7.216.251 | 10.7.216.251 |
| 253 | 10.7.216.252/32 | 10.7.216.252 – 10.7.216.252 | 10.7.216.252 |
| 254 | 10.7.216.253/32 | 10.7.216.253 – 10.7.216.253 | 10.7.216.253 |
| 255 | 10.7.216.254/32 | 10.7.216.254 – 10.7.216.254 | 10.7.216.254 |
| 256 | 10.7.216.255/32 | 10.7.216.255 – 10.7.216.255 | 10.7.216.255 |
showing 256 of 2,048
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.