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)10.2.196.0/24
network10.2.196.0/24
broadcast10.2.196.255
first host10.2.196.1
last host10.2.196.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.2.196.0/24
address00001010.00000010.11000100.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.00000010.11000100.00000000
broadcast00001010.00000010.11000100.11111111
green = network part, grey = host part
hex0x0a02c400
decimal167953408
reverse dns0.196.2.10.in-addr.arpa
ipv4-mapped::ffff:a02:c400

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.2.196.0/3110.2.196.0 – 10.2.196.110.2.196.1
210.2.196.2/3110.2.196.2 – 10.2.196.310.2.196.3
310.2.196.4/3110.2.196.4 – 10.2.196.510.2.196.5
410.2.196.6/3110.2.196.6 – 10.2.196.710.2.196.7
510.2.196.8/3110.2.196.8 – 10.2.196.910.2.196.9
610.2.196.10/3110.2.196.10 – 10.2.196.1110.2.196.11
710.2.196.12/3110.2.196.12 – 10.2.196.1310.2.196.13
810.2.196.14/3110.2.196.14 – 10.2.196.1510.2.196.15
910.2.196.16/3110.2.196.16 – 10.2.196.1710.2.196.17
1010.2.196.18/3110.2.196.18 – 10.2.196.1910.2.196.19
1110.2.196.20/3110.2.196.20 – 10.2.196.2110.2.196.21
1210.2.196.22/3110.2.196.22 – 10.2.196.2310.2.196.23
1310.2.196.24/3110.2.196.24 – 10.2.196.2510.2.196.25
1410.2.196.26/3110.2.196.26 – 10.2.196.2710.2.196.27
1510.2.196.28/3110.2.196.28 – 10.2.196.2910.2.196.29
1610.2.196.30/3110.2.196.30 – 10.2.196.3110.2.196.31
1710.2.196.32/3110.2.196.32 – 10.2.196.3310.2.196.33
1810.2.196.34/3110.2.196.34 – 10.2.196.3510.2.196.35
1910.2.196.36/3110.2.196.36 – 10.2.196.3710.2.196.37
2010.2.196.38/3110.2.196.38 – 10.2.196.3910.2.196.39
2110.2.196.40/3110.2.196.40 – 10.2.196.4110.2.196.41
2210.2.196.42/3110.2.196.42 – 10.2.196.4310.2.196.43
2310.2.196.44/3110.2.196.44 – 10.2.196.4510.2.196.45
2410.2.196.46/3110.2.196.46 – 10.2.196.4710.2.196.47
2510.2.196.48/3110.2.196.48 – 10.2.196.4910.2.196.49
2610.2.196.50/3110.2.196.50 – 10.2.196.5110.2.196.51
2710.2.196.52/3110.2.196.52 – 10.2.196.5310.2.196.53
2810.2.196.54/3110.2.196.54 – 10.2.196.5510.2.196.55
2910.2.196.56/3110.2.196.56 – 10.2.196.5710.2.196.57
3010.2.196.58/3110.2.196.58 – 10.2.196.5910.2.196.59
3110.2.196.60/3110.2.196.60 – 10.2.196.6110.2.196.61
3210.2.196.62/3110.2.196.62 – 10.2.196.6310.2.196.63
3310.2.196.64/3110.2.196.64 – 10.2.196.6510.2.196.65
3410.2.196.66/3110.2.196.66 – 10.2.196.6710.2.196.67
3510.2.196.68/3110.2.196.68 – 10.2.196.6910.2.196.69
3610.2.196.70/3110.2.196.70 – 10.2.196.7110.2.196.71
3710.2.196.72/3110.2.196.72 – 10.2.196.7310.2.196.73
3810.2.196.74/3110.2.196.74 – 10.2.196.7510.2.196.75
3910.2.196.76/3110.2.196.76 – 10.2.196.7710.2.196.77
4010.2.196.78/3110.2.196.78 – 10.2.196.7910.2.196.79
4110.2.196.80/3110.2.196.80 – 10.2.196.8110.2.196.81
4210.2.196.82/3110.2.196.82 – 10.2.196.8310.2.196.83
4310.2.196.84/3110.2.196.84 – 10.2.196.8510.2.196.85
4410.2.196.86/3110.2.196.86 – 10.2.196.8710.2.196.87
4510.2.196.88/3110.2.196.88 – 10.2.196.8910.2.196.89
4610.2.196.90/3110.2.196.90 – 10.2.196.9110.2.196.91
4710.2.196.92/3110.2.196.92 – 10.2.196.9310.2.196.93
4810.2.196.94/3110.2.196.94 – 10.2.196.9510.2.196.95
4910.2.196.96/3110.2.196.96 – 10.2.196.9710.2.196.97
5010.2.196.98/3110.2.196.98 – 10.2.196.9910.2.196.99
5110.2.196.100/3110.2.196.100 – 10.2.196.10110.2.196.101
5210.2.196.102/3110.2.196.102 – 10.2.196.10310.2.196.103
5310.2.196.104/3110.2.196.104 – 10.2.196.10510.2.196.105
5410.2.196.106/3110.2.196.106 – 10.2.196.10710.2.196.107
5510.2.196.108/3110.2.196.108 – 10.2.196.10910.2.196.109
5610.2.196.110/3110.2.196.110 – 10.2.196.11110.2.196.111
5710.2.196.112/3110.2.196.112 – 10.2.196.11310.2.196.113
5810.2.196.114/3110.2.196.114 – 10.2.196.11510.2.196.115
5910.2.196.116/3110.2.196.116 – 10.2.196.11710.2.196.117
6010.2.196.118/3110.2.196.118 – 10.2.196.11910.2.196.119
6110.2.196.120/3110.2.196.120 – 10.2.196.12110.2.196.121
6210.2.196.122/3110.2.196.122 – 10.2.196.12310.2.196.123
6310.2.196.124/3110.2.196.124 – 10.2.196.12510.2.196.125
6410.2.196.126/3110.2.196.126 – 10.2.196.12710.2.196.127
6510.2.196.128/3110.2.196.128 – 10.2.196.12910.2.196.129
6610.2.196.130/3110.2.196.130 – 10.2.196.13110.2.196.131
6710.2.196.132/3110.2.196.132 – 10.2.196.13310.2.196.133
6810.2.196.134/3110.2.196.134 – 10.2.196.13510.2.196.135
6910.2.196.136/3110.2.196.136 – 10.2.196.13710.2.196.137
7010.2.196.138/3110.2.196.138 – 10.2.196.13910.2.196.139
7110.2.196.140/3110.2.196.140 – 10.2.196.14110.2.196.141
7210.2.196.142/3110.2.196.142 – 10.2.196.14310.2.196.143
7310.2.196.144/3110.2.196.144 – 10.2.196.14510.2.196.145
7410.2.196.146/3110.2.196.146 – 10.2.196.14710.2.196.147
7510.2.196.148/3110.2.196.148 – 10.2.196.14910.2.196.149
7610.2.196.150/3110.2.196.150 – 10.2.196.15110.2.196.151
7710.2.196.152/3110.2.196.152 – 10.2.196.15310.2.196.153
7810.2.196.154/3110.2.196.154 – 10.2.196.15510.2.196.155
7910.2.196.156/3110.2.196.156 – 10.2.196.15710.2.196.157
8010.2.196.158/3110.2.196.158 – 10.2.196.15910.2.196.159
8110.2.196.160/3110.2.196.160 – 10.2.196.16110.2.196.161
8210.2.196.162/3110.2.196.162 – 10.2.196.16310.2.196.163
8310.2.196.164/3110.2.196.164 – 10.2.196.16510.2.196.165
8410.2.196.166/3110.2.196.166 – 10.2.196.16710.2.196.167
8510.2.196.168/3110.2.196.168 – 10.2.196.16910.2.196.169
8610.2.196.170/3110.2.196.170 – 10.2.196.17110.2.196.171
8710.2.196.172/3110.2.196.172 – 10.2.196.17310.2.196.173
8810.2.196.174/3110.2.196.174 – 10.2.196.17510.2.196.175
8910.2.196.176/3110.2.196.176 – 10.2.196.17710.2.196.177
9010.2.196.178/3110.2.196.178 – 10.2.196.17910.2.196.179
9110.2.196.180/3110.2.196.180 – 10.2.196.18110.2.196.181
9210.2.196.182/3110.2.196.182 – 10.2.196.18310.2.196.183
9310.2.196.184/3110.2.196.184 – 10.2.196.18510.2.196.185
9410.2.196.186/3110.2.196.186 – 10.2.196.18710.2.196.187
9510.2.196.188/3110.2.196.188 – 10.2.196.18910.2.196.189
9610.2.196.190/3110.2.196.190 – 10.2.196.19110.2.196.191
9710.2.196.192/3110.2.196.192 – 10.2.196.19310.2.196.193
9810.2.196.194/3110.2.196.194 – 10.2.196.19510.2.196.195
9910.2.196.196/3110.2.196.196 – 10.2.196.19710.2.196.197
10010.2.196.198/3110.2.196.198 – 10.2.196.19910.2.196.199
10110.2.196.200/3110.2.196.200 – 10.2.196.20110.2.196.201
10210.2.196.202/3110.2.196.202 – 10.2.196.20310.2.196.203
10310.2.196.204/3110.2.196.204 – 10.2.196.20510.2.196.205
10410.2.196.206/3110.2.196.206 – 10.2.196.20710.2.196.207
10510.2.196.208/3110.2.196.208 – 10.2.196.20910.2.196.209
10610.2.196.210/3110.2.196.210 – 10.2.196.21110.2.196.211
10710.2.196.212/3110.2.196.212 – 10.2.196.21310.2.196.213
10810.2.196.214/3110.2.196.214 – 10.2.196.21510.2.196.215
10910.2.196.216/3110.2.196.216 – 10.2.196.21710.2.196.217
11010.2.196.218/3110.2.196.218 – 10.2.196.21910.2.196.219
11110.2.196.220/3110.2.196.220 – 10.2.196.22110.2.196.221
11210.2.196.222/3110.2.196.222 – 10.2.196.22310.2.196.223
11310.2.196.224/3110.2.196.224 – 10.2.196.22510.2.196.225
11410.2.196.226/3110.2.196.226 – 10.2.196.22710.2.196.227
11510.2.196.228/3110.2.196.228 – 10.2.196.22910.2.196.229
11610.2.196.230/3110.2.196.230 – 10.2.196.23110.2.196.231
11710.2.196.232/3110.2.196.232 – 10.2.196.23310.2.196.233
11810.2.196.234/3110.2.196.234 – 10.2.196.23510.2.196.235
11910.2.196.236/3110.2.196.236 – 10.2.196.23710.2.196.237
12010.2.196.238/3110.2.196.238 – 10.2.196.23910.2.196.239
12110.2.196.240/3110.2.196.240 – 10.2.196.24110.2.196.241
12210.2.196.242/3110.2.196.242 – 10.2.196.24310.2.196.243
12310.2.196.244/3110.2.196.244 – 10.2.196.24510.2.196.245
12410.2.196.246/3110.2.196.246 – 10.2.196.24710.2.196.247
12510.2.196.248/3110.2.196.248 – 10.2.196.24910.2.196.249
12610.2.196.250/3110.2.196.250 – 10.2.196.25110.2.196.251
12710.2.196.252/3110.2.196.252 – 10.2.196.25310.2.196.253
12810.2.196.254/3110.2.196.254 – 10.2.196.25510.2.196.255
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 →