ip
ipku.in

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.

$ ipcalc
Try:192.168.1.10/2410.0.0.0/8172.16.5.4/20203.0.113.9/29
IPv6 calculator →
private IP (RFC 1918)10.232.64.0/24
network10.232.64.0/24
broadcast10.232.64.255
first host10.232.64.1
last host10.232.64.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.232.64.0/24
address00001010.11101000.01000000.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.11101000.01000000.00000000
broadcast00001010.11101000.01000000.11111111
green = network part, grey = host part
hex0x0ae84000
decimal182992896
reverse dns0.64.232.10.in-addr.arpa
ipv4-mapped::ffff:ae8:4000

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.232.64.0/3110.232.64.0 – 10.232.64.110.232.64.1
210.232.64.2/3110.232.64.2 – 10.232.64.310.232.64.3
310.232.64.4/3110.232.64.4 – 10.232.64.510.232.64.5
410.232.64.6/3110.232.64.6 – 10.232.64.710.232.64.7
510.232.64.8/3110.232.64.8 – 10.232.64.910.232.64.9
610.232.64.10/3110.232.64.10 – 10.232.64.1110.232.64.11
710.232.64.12/3110.232.64.12 – 10.232.64.1310.232.64.13
810.232.64.14/3110.232.64.14 – 10.232.64.1510.232.64.15
910.232.64.16/3110.232.64.16 – 10.232.64.1710.232.64.17
1010.232.64.18/3110.232.64.18 – 10.232.64.1910.232.64.19
1110.232.64.20/3110.232.64.20 – 10.232.64.2110.232.64.21
1210.232.64.22/3110.232.64.22 – 10.232.64.2310.232.64.23
1310.232.64.24/3110.232.64.24 – 10.232.64.2510.232.64.25
1410.232.64.26/3110.232.64.26 – 10.232.64.2710.232.64.27
1510.232.64.28/3110.232.64.28 – 10.232.64.2910.232.64.29
1610.232.64.30/3110.232.64.30 – 10.232.64.3110.232.64.31
1710.232.64.32/3110.232.64.32 – 10.232.64.3310.232.64.33
1810.232.64.34/3110.232.64.34 – 10.232.64.3510.232.64.35
1910.232.64.36/3110.232.64.36 – 10.232.64.3710.232.64.37
2010.232.64.38/3110.232.64.38 – 10.232.64.3910.232.64.39
2110.232.64.40/3110.232.64.40 – 10.232.64.4110.232.64.41
2210.232.64.42/3110.232.64.42 – 10.232.64.4310.232.64.43
2310.232.64.44/3110.232.64.44 – 10.232.64.4510.232.64.45
2410.232.64.46/3110.232.64.46 – 10.232.64.4710.232.64.47
2510.232.64.48/3110.232.64.48 – 10.232.64.4910.232.64.49
2610.232.64.50/3110.232.64.50 – 10.232.64.5110.232.64.51
2710.232.64.52/3110.232.64.52 – 10.232.64.5310.232.64.53
2810.232.64.54/3110.232.64.54 – 10.232.64.5510.232.64.55
2910.232.64.56/3110.232.64.56 – 10.232.64.5710.232.64.57
3010.232.64.58/3110.232.64.58 – 10.232.64.5910.232.64.59
3110.232.64.60/3110.232.64.60 – 10.232.64.6110.232.64.61
3210.232.64.62/3110.232.64.62 – 10.232.64.6310.232.64.63
3310.232.64.64/3110.232.64.64 – 10.232.64.6510.232.64.65
3410.232.64.66/3110.232.64.66 – 10.232.64.6710.232.64.67
3510.232.64.68/3110.232.64.68 – 10.232.64.6910.232.64.69
3610.232.64.70/3110.232.64.70 – 10.232.64.7110.232.64.71
3710.232.64.72/3110.232.64.72 – 10.232.64.7310.232.64.73
3810.232.64.74/3110.232.64.74 – 10.232.64.7510.232.64.75
3910.232.64.76/3110.232.64.76 – 10.232.64.7710.232.64.77
4010.232.64.78/3110.232.64.78 – 10.232.64.7910.232.64.79
4110.232.64.80/3110.232.64.80 – 10.232.64.8110.232.64.81
4210.232.64.82/3110.232.64.82 – 10.232.64.8310.232.64.83
4310.232.64.84/3110.232.64.84 – 10.232.64.8510.232.64.85
4410.232.64.86/3110.232.64.86 – 10.232.64.8710.232.64.87
4510.232.64.88/3110.232.64.88 – 10.232.64.8910.232.64.89
4610.232.64.90/3110.232.64.90 – 10.232.64.9110.232.64.91
4710.232.64.92/3110.232.64.92 – 10.232.64.9310.232.64.93
4810.232.64.94/3110.232.64.94 – 10.232.64.9510.232.64.95
4910.232.64.96/3110.232.64.96 – 10.232.64.9710.232.64.97
5010.232.64.98/3110.232.64.98 – 10.232.64.9910.232.64.99
5110.232.64.100/3110.232.64.100 – 10.232.64.10110.232.64.101
5210.232.64.102/3110.232.64.102 – 10.232.64.10310.232.64.103
5310.232.64.104/3110.232.64.104 – 10.232.64.10510.232.64.105
5410.232.64.106/3110.232.64.106 – 10.232.64.10710.232.64.107
5510.232.64.108/3110.232.64.108 – 10.232.64.10910.232.64.109
5610.232.64.110/3110.232.64.110 – 10.232.64.11110.232.64.111
5710.232.64.112/3110.232.64.112 – 10.232.64.11310.232.64.113
5810.232.64.114/3110.232.64.114 – 10.232.64.11510.232.64.115
5910.232.64.116/3110.232.64.116 – 10.232.64.11710.232.64.117
6010.232.64.118/3110.232.64.118 – 10.232.64.11910.232.64.119
6110.232.64.120/3110.232.64.120 – 10.232.64.12110.232.64.121
6210.232.64.122/3110.232.64.122 – 10.232.64.12310.232.64.123
6310.232.64.124/3110.232.64.124 – 10.232.64.12510.232.64.125
6410.232.64.126/3110.232.64.126 – 10.232.64.12710.232.64.127
6510.232.64.128/3110.232.64.128 – 10.232.64.12910.232.64.129
6610.232.64.130/3110.232.64.130 – 10.232.64.13110.232.64.131
6710.232.64.132/3110.232.64.132 – 10.232.64.13310.232.64.133
6810.232.64.134/3110.232.64.134 – 10.232.64.13510.232.64.135
6910.232.64.136/3110.232.64.136 – 10.232.64.13710.232.64.137
7010.232.64.138/3110.232.64.138 – 10.232.64.13910.232.64.139
7110.232.64.140/3110.232.64.140 – 10.232.64.14110.232.64.141
7210.232.64.142/3110.232.64.142 – 10.232.64.14310.232.64.143
7310.232.64.144/3110.232.64.144 – 10.232.64.14510.232.64.145
7410.232.64.146/3110.232.64.146 – 10.232.64.14710.232.64.147
7510.232.64.148/3110.232.64.148 – 10.232.64.14910.232.64.149
7610.232.64.150/3110.232.64.150 – 10.232.64.15110.232.64.151
7710.232.64.152/3110.232.64.152 – 10.232.64.15310.232.64.153
7810.232.64.154/3110.232.64.154 – 10.232.64.15510.232.64.155
7910.232.64.156/3110.232.64.156 – 10.232.64.15710.232.64.157
8010.232.64.158/3110.232.64.158 – 10.232.64.15910.232.64.159
8110.232.64.160/3110.232.64.160 – 10.232.64.16110.232.64.161
8210.232.64.162/3110.232.64.162 – 10.232.64.16310.232.64.163
8310.232.64.164/3110.232.64.164 – 10.232.64.16510.232.64.165
8410.232.64.166/3110.232.64.166 – 10.232.64.16710.232.64.167
8510.232.64.168/3110.232.64.168 – 10.232.64.16910.232.64.169
8610.232.64.170/3110.232.64.170 – 10.232.64.17110.232.64.171
8710.232.64.172/3110.232.64.172 – 10.232.64.17310.232.64.173
8810.232.64.174/3110.232.64.174 – 10.232.64.17510.232.64.175
8910.232.64.176/3110.232.64.176 – 10.232.64.17710.232.64.177
9010.232.64.178/3110.232.64.178 – 10.232.64.17910.232.64.179
9110.232.64.180/3110.232.64.180 – 10.232.64.18110.232.64.181
9210.232.64.182/3110.232.64.182 – 10.232.64.18310.232.64.183
9310.232.64.184/3110.232.64.184 – 10.232.64.18510.232.64.185
9410.232.64.186/3110.232.64.186 – 10.232.64.18710.232.64.187
9510.232.64.188/3110.232.64.188 – 10.232.64.18910.232.64.189
9610.232.64.190/3110.232.64.190 – 10.232.64.19110.232.64.191
9710.232.64.192/3110.232.64.192 – 10.232.64.19310.232.64.193
9810.232.64.194/3110.232.64.194 – 10.232.64.19510.232.64.195
9910.232.64.196/3110.232.64.196 – 10.232.64.19710.232.64.197
10010.232.64.198/3110.232.64.198 – 10.232.64.19910.232.64.199
10110.232.64.200/3110.232.64.200 – 10.232.64.20110.232.64.201
10210.232.64.202/3110.232.64.202 – 10.232.64.20310.232.64.203
10310.232.64.204/3110.232.64.204 – 10.232.64.20510.232.64.205
10410.232.64.206/3110.232.64.206 – 10.232.64.20710.232.64.207
10510.232.64.208/3110.232.64.208 – 10.232.64.20910.232.64.209
10610.232.64.210/3110.232.64.210 – 10.232.64.21110.232.64.211
10710.232.64.212/3110.232.64.212 – 10.232.64.21310.232.64.213
10810.232.64.214/3110.232.64.214 – 10.232.64.21510.232.64.215
10910.232.64.216/3110.232.64.216 – 10.232.64.21710.232.64.217
11010.232.64.218/3110.232.64.218 – 10.232.64.21910.232.64.219
11110.232.64.220/3110.232.64.220 – 10.232.64.22110.232.64.221
11210.232.64.222/3110.232.64.222 – 10.232.64.22310.232.64.223
11310.232.64.224/3110.232.64.224 – 10.232.64.22510.232.64.225
11410.232.64.226/3110.232.64.226 – 10.232.64.22710.232.64.227
11510.232.64.228/3110.232.64.228 – 10.232.64.22910.232.64.229
11610.232.64.230/3110.232.64.230 – 10.232.64.23110.232.64.231
11710.232.64.232/3110.232.64.232 – 10.232.64.23310.232.64.233
11810.232.64.234/3110.232.64.234 – 10.232.64.23510.232.64.235
11910.232.64.236/3110.232.64.236 – 10.232.64.23710.232.64.237
12010.232.64.238/3110.232.64.238 – 10.232.64.23910.232.64.239
12110.232.64.240/3110.232.64.240 – 10.232.64.24110.232.64.241
12210.232.64.242/3110.232.64.242 – 10.232.64.24310.232.64.243
12310.232.64.244/3110.232.64.244 – 10.232.64.24510.232.64.245
12410.232.64.246/3110.232.64.246 – 10.232.64.24710.232.64.247
12510.232.64.248/3110.232.64.248 – 10.232.64.24910.232.64.249
12610.232.64.250/3110.232.64.250 – 10.232.64.25110.232.64.251
12710.232.64.252/3110.232.64.252 – 10.232.64.25310.232.64.253
12810.232.64.254/3110.232.64.254 – 10.232.64.25510.232.64.255
01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefixsubnet maskaddresseshostsin your /24
/00.0.0.04,294,967,2964,294,967,294-
/1128.0.0.02,147,483,6482,147,483,646-
/2192.0.0.01,073,741,8241,073,741,822-
/3224.0.0.0536,870,912536,870,910-
/4240.0.0.0268,435,456268,435,454-
/5248.0.0.0134,217,728134,217,726-
/6252.0.0.067,108,86467,108,862-
/7254.0.0.033,554,43233,554,430-
/8255.0.0.016,777,21616,777,214-
/9255.128.0.08,388,6088,388,606-
/10255.192.0.04,194,3044,194,302-
/11255.224.0.02,097,1522,097,150-
/12255.240.0.01,048,5761,048,574-
/13255.248.0.0524,288524,286-
/14255.252.0.0262,144262,142-
/15255.254.0.0131,072131,070-
/16255.255.0.065,53665,534-
/17255.255.128.032,76832,766-
/18255.255.192.016,38416,382-
/19255.255.224.08,1928,190-
/20255.255.240.04,0964,094-
/21255.255.248.02,0482,046-
/22255.255.252.01,0241,022-
/23255.255.254.0512510-
/24255.255.255.02562541
/25255.255.255.1281281262 split →
/26255.255.255.19264624 split →
/27255.255.255.22432308 split →
/28255.255.255.240161416 split →
/29255.255.255.2488632 split →
/30255.255.255.2524264 split →
/31255.255.255.25422128 split →
/32255.255.255.25511256 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.

Learn how to work it out →