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)10.2.162.0/24
network10.2.162.0/24
broadcast10.2.162.255
first host10.2.162.1
last host10.2.162.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.2.162.0/24
address00001010.00000010.10100010.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.00000010.10100010.00000000
broadcast00001010.00000010.10100010.11111111
green = network part, grey = host part
hex0x0a02a200
decimal167944704
reverse dns0.162.2.10.in-addr.arpa
ipv4-mapped::ffff:a02:a200

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.2.162.0/3110.2.162.0 – 10.2.162.110.2.162.1
210.2.162.2/3110.2.162.2 – 10.2.162.310.2.162.3
310.2.162.4/3110.2.162.4 – 10.2.162.510.2.162.5
410.2.162.6/3110.2.162.6 – 10.2.162.710.2.162.7
510.2.162.8/3110.2.162.8 – 10.2.162.910.2.162.9
610.2.162.10/3110.2.162.10 – 10.2.162.1110.2.162.11
710.2.162.12/3110.2.162.12 – 10.2.162.1310.2.162.13
810.2.162.14/3110.2.162.14 – 10.2.162.1510.2.162.15
910.2.162.16/3110.2.162.16 – 10.2.162.1710.2.162.17
1010.2.162.18/3110.2.162.18 – 10.2.162.1910.2.162.19
1110.2.162.20/3110.2.162.20 – 10.2.162.2110.2.162.21
1210.2.162.22/3110.2.162.22 – 10.2.162.2310.2.162.23
1310.2.162.24/3110.2.162.24 – 10.2.162.2510.2.162.25
1410.2.162.26/3110.2.162.26 – 10.2.162.2710.2.162.27
1510.2.162.28/3110.2.162.28 – 10.2.162.2910.2.162.29
1610.2.162.30/3110.2.162.30 – 10.2.162.3110.2.162.31
1710.2.162.32/3110.2.162.32 – 10.2.162.3310.2.162.33
1810.2.162.34/3110.2.162.34 – 10.2.162.3510.2.162.35
1910.2.162.36/3110.2.162.36 – 10.2.162.3710.2.162.37
2010.2.162.38/3110.2.162.38 – 10.2.162.3910.2.162.39
2110.2.162.40/3110.2.162.40 – 10.2.162.4110.2.162.41
2210.2.162.42/3110.2.162.42 – 10.2.162.4310.2.162.43
2310.2.162.44/3110.2.162.44 – 10.2.162.4510.2.162.45
2410.2.162.46/3110.2.162.46 – 10.2.162.4710.2.162.47
2510.2.162.48/3110.2.162.48 – 10.2.162.4910.2.162.49
2610.2.162.50/3110.2.162.50 – 10.2.162.5110.2.162.51
2710.2.162.52/3110.2.162.52 – 10.2.162.5310.2.162.53
2810.2.162.54/3110.2.162.54 – 10.2.162.5510.2.162.55
2910.2.162.56/3110.2.162.56 – 10.2.162.5710.2.162.57
3010.2.162.58/3110.2.162.58 – 10.2.162.5910.2.162.59
3110.2.162.60/3110.2.162.60 – 10.2.162.6110.2.162.61
3210.2.162.62/3110.2.162.62 – 10.2.162.6310.2.162.63
3310.2.162.64/3110.2.162.64 – 10.2.162.6510.2.162.65
3410.2.162.66/3110.2.162.66 – 10.2.162.6710.2.162.67
3510.2.162.68/3110.2.162.68 – 10.2.162.6910.2.162.69
3610.2.162.70/3110.2.162.70 – 10.2.162.7110.2.162.71
3710.2.162.72/3110.2.162.72 – 10.2.162.7310.2.162.73
3810.2.162.74/3110.2.162.74 – 10.2.162.7510.2.162.75
3910.2.162.76/3110.2.162.76 – 10.2.162.7710.2.162.77
4010.2.162.78/3110.2.162.78 – 10.2.162.7910.2.162.79
4110.2.162.80/3110.2.162.80 – 10.2.162.8110.2.162.81
4210.2.162.82/3110.2.162.82 – 10.2.162.8310.2.162.83
4310.2.162.84/3110.2.162.84 – 10.2.162.8510.2.162.85
4410.2.162.86/3110.2.162.86 – 10.2.162.8710.2.162.87
4510.2.162.88/3110.2.162.88 – 10.2.162.8910.2.162.89
4610.2.162.90/3110.2.162.90 – 10.2.162.9110.2.162.91
4710.2.162.92/3110.2.162.92 – 10.2.162.9310.2.162.93
4810.2.162.94/3110.2.162.94 – 10.2.162.9510.2.162.95
4910.2.162.96/3110.2.162.96 – 10.2.162.9710.2.162.97
5010.2.162.98/3110.2.162.98 – 10.2.162.9910.2.162.99
5110.2.162.100/3110.2.162.100 – 10.2.162.10110.2.162.101
5210.2.162.102/3110.2.162.102 – 10.2.162.10310.2.162.103
5310.2.162.104/3110.2.162.104 – 10.2.162.10510.2.162.105
5410.2.162.106/3110.2.162.106 – 10.2.162.10710.2.162.107
5510.2.162.108/3110.2.162.108 – 10.2.162.10910.2.162.109
5610.2.162.110/3110.2.162.110 – 10.2.162.11110.2.162.111
5710.2.162.112/3110.2.162.112 – 10.2.162.11310.2.162.113
5810.2.162.114/3110.2.162.114 – 10.2.162.11510.2.162.115
5910.2.162.116/3110.2.162.116 – 10.2.162.11710.2.162.117
6010.2.162.118/3110.2.162.118 – 10.2.162.11910.2.162.119
6110.2.162.120/3110.2.162.120 – 10.2.162.12110.2.162.121
6210.2.162.122/3110.2.162.122 – 10.2.162.12310.2.162.123
6310.2.162.124/3110.2.162.124 – 10.2.162.12510.2.162.125
6410.2.162.126/3110.2.162.126 – 10.2.162.12710.2.162.127
6510.2.162.128/3110.2.162.128 – 10.2.162.12910.2.162.129
6610.2.162.130/3110.2.162.130 – 10.2.162.13110.2.162.131
6710.2.162.132/3110.2.162.132 – 10.2.162.13310.2.162.133
6810.2.162.134/3110.2.162.134 – 10.2.162.13510.2.162.135
6910.2.162.136/3110.2.162.136 – 10.2.162.13710.2.162.137
7010.2.162.138/3110.2.162.138 – 10.2.162.13910.2.162.139
7110.2.162.140/3110.2.162.140 – 10.2.162.14110.2.162.141
7210.2.162.142/3110.2.162.142 – 10.2.162.14310.2.162.143
7310.2.162.144/3110.2.162.144 – 10.2.162.14510.2.162.145
7410.2.162.146/3110.2.162.146 – 10.2.162.14710.2.162.147
7510.2.162.148/3110.2.162.148 – 10.2.162.14910.2.162.149
7610.2.162.150/3110.2.162.150 – 10.2.162.15110.2.162.151
7710.2.162.152/3110.2.162.152 – 10.2.162.15310.2.162.153
7810.2.162.154/3110.2.162.154 – 10.2.162.15510.2.162.155
7910.2.162.156/3110.2.162.156 – 10.2.162.15710.2.162.157
8010.2.162.158/3110.2.162.158 – 10.2.162.15910.2.162.159
8110.2.162.160/3110.2.162.160 – 10.2.162.16110.2.162.161
8210.2.162.162/3110.2.162.162 – 10.2.162.16310.2.162.163
8310.2.162.164/3110.2.162.164 – 10.2.162.16510.2.162.165
8410.2.162.166/3110.2.162.166 – 10.2.162.16710.2.162.167
8510.2.162.168/3110.2.162.168 – 10.2.162.16910.2.162.169
8610.2.162.170/3110.2.162.170 – 10.2.162.17110.2.162.171
8710.2.162.172/3110.2.162.172 – 10.2.162.17310.2.162.173
8810.2.162.174/3110.2.162.174 – 10.2.162.17510.2.162.175
8910.2.162.176/3110.2.162.176 – 10.2.162.17710.2.162.177
9010.2.162.178/3110.2.162.178 – 10.2.162.17910.2.162.179
9110.2.162.180/3110.2.162.180 – 10.2.162.18110.2.162.181
9210.2.162.182/3110.2.162.182 – 10.2.162.18310.2.162.183
9310.2.162.184/3110.2.162.184 – 10.2.162.18510.2.162.185
9410.2.162.186/3110.2.162.186 – 10.2.162.18710.2.162.187
9510.2.162.188/3110.2.162.188 – 10.2.162.18910.2.162.189
9610.2.162.190/3110.2.162.190 – 10.2.162.19110.2.162.191
9710.2.162.192/3110.2.162.192 – 10.2.162.19310.2.162.193
9810.2.162.194/3110.2.162.194 – 10.2.162.19510.2.162.195
9910.2.162.196/3110.2.162.196 – 10.2.162.19710.2.162.197
10010.2.162.198/3110.2.162.198 – 10.2.162.19910.2.162.199
10110.2.162.200/3110.2.162.200 – 10.2.162.20110.2.162.201
10210.2.162.202/3110.2.162.202 – 10.2.162.20310.2.162.203
10310.2.162.204/3110.2.162.204 – 10.2.162.20510.2.162.205
10410.2.162.206/3110.2.162.206 – 10.2.162.20710.2.162.207
10510.2.162.208/3110.2.162.208 – 10.2.162.20910.2.162.209
10610.2.162.210/3110.2.162.210 – 10.2.162.21110.2.162.211
10710.2.162.212/3110.2.162.212 – 10.2.162.21310.2.162.213
10810.2.162.214/3110.2.162.214 – 10.2.162.21510.2.162.215
10910.2.162.216/3110.2.162.216 – 10.2.162.21710.2.162.217
11010.2.162.218/3110.2.162.218 – 10.2.162.21910.2.162.219
11110.2.162.220/3110.2.162.220 – 10.2.162.22110.2.162.221
11210.2.162.222/3110.2.162.222 – 10.2.162.22310.2.162.223
11310.2.162.224/3110.2.162.224 – 10.2.162.22510.2.162.225
11410.2.162.226/3110.2.162.226 – 10.2.162.22710.2.162.227
11510.2.162.228/3110.2.162.228 – 10.2.162.22910.2.162.229
11610.2.162.230/3110.2.162.230 – 10.2.162.23110.2.162.231
11710.2.162.232/3110.2.162.232 – 10.2.162.23310.2.162.233
11810.2.162.234/3110.2.162.234 – 10.2.162.23510.2.162.235
11910.2.162.236/3110.2.162.236 – 10.2.162.23710.2.162.237
12010.2.162.238/3110.2.162.238 – 10.2.162.23910.2.162.239
12110.2.162.240/3110.2.162.240 – 10.2.162.24110.2.162.241
12210.2.162.242/3110.2.162.242 – 10.2.162.24310.2.162.243
12310.2.162.244/3110.2.162.244 – 10.2.162.24510.2.162.245
12410.2.162.246/3110.2.162.246 – 10.2.162.24710.2.162.247
12510.2.162.248/3110.2.162.248 – 10.2.162.24910.2.162.249
12610.2.162.250/3110.2.162.250 – 10.2.162.25110.2.162.251
12710.2.162.252/3110.2.162.252 – 10.2.162.25310.2.162.253
12810.2.162.254/3110.2.162.254 – 10.2.162.25510.2.162.255
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 →