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
private IP (RFC 1918)10.167.10.0/24
network10.167.10.0/24
broadcast10.167.10.255
first host10.167.10.1
last host10.167.10.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.167.10.0/24
address00001010.10100111.00001010.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.10100111.00001010.00000000
broadcast00001010.10100111.00001010.11111111
green = network part, grey = host part
hex0x0aa70a00
decimal178719232
reverse dns0.10.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:a00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.167.10.0/3110.167.10.0 – 10.167.10.110.167.10.1
210.167.10.2/3110.167.10.2 – 10.167.10.310.167.10.3
310.167.10.4/3110.167.10.4 – 10.167.10.510.167.10.5
410.167.10.6/3110.167.10.6 – 10.167.10.710.167.10.7
510.167.10.8/3110.167.10.8 – 10.167.10.910.167.10.9
610.167.10.10/3110.167.10.10 – 10.167.10.1110.167.10.11
710.167.10.12/3110.167.10.12 – 10.167.10.1310.167.10.13
810.167.10.14/3110.167.10.14 – 10.167.10.1510.167.10.15
910.167.10.16/3110.167.10.16 – 10.167.10.1710.167.10.17
1010.167.10.18/3110.167.10.18 – 10.167.10.1910.167.10.19
1110.167.10.20/3110.167.10.20 – 10.167.10.2110.167.10.21
1210.167.10.22/3110.167.10.22 – 10.167.10.2310.167.10.23
1310.167.10.24/3110.167.10.24 – 10.167.10.2510.167.10.25
1410.167.10.26/3110.167.10.26 – 10.167.10.2710.167.10.27
1510.167.10.28/3110.167.10.28 – 10.167.10.2910.167.10.29
1610.167.10.30/3110.167.10.30 – 10.167.10.3110.167.10.31
1710.167.10.32/3110.167.10.32 – 10.167.10.3310.167.10.33
1810.167.10.34/3110.167.10.34 – 10.167.10.3510.167.10.35
1910.167.10.36/3110.167.10.36 – 10.167.10.3710.167.10.37
2010.167.10.38/3110.167.10.38 – 10.167.10.3910.167.10.39
2110.167.10.40/3110.167.10.40 – 10.167.10.4110.167.10.41
2210.167.10.42/3110.167.10.42 – 10.167.10.4310.167.10.43
2310.167.10.44/3110.167.10.44 – 10.167.10.4510.167.10.45
2410.167.10.46/3110.167.10.46 – 10.167.10.4710.167.10.47
2510.167.10.48/3110.167.10.48 – 10.167.10.4910.167.10.49
2610.167.10.50/3110.167.10.50 – 10.167.10.5110.167.10.51
2710.167.10.52/3110.167.10.52 – 10.167.10.5310.167.10.53
2810.167.10.54/3110.167.10.54 – 10.167.10.5510.167.10.55
2910.167.10.56/3110.167.10.56 – 10.167.10.5710.167.10.57
3010.167.10.58/3110.167.10.58 – 10.167.10.5910.167.10.59
3110.167.10.60/3110.167.10.60 – 10.167.10.6110.167.10.61
3210.167.10.62/3110.167.10.62 – 10.167.10.6310.167.10.63
3310.167.10.64/3110.167.10.64 – 10.167.10.6510.167.10.65
3410.167.10.66/3110.167.10.66 – 10.167.10.6710.167.10.67
3510.167.10.68/3110.167.10.68 – 10.167.10.6910.167.10.69
3610.167.10.70/3110.167.10.70 – 10.167.10.7110.167.10.71
3710.167.10.72/3110.167.10.72 – 10.167.10.7310.167.10.73
3810.167.10.74/3110.167.10.74 – 10.167.10.7510.167.10.75
3910.167.10.76/3110.167.10.76 – 10.167.10.7710.167.10.77
4010.167.10.78/3110.167.10.78 – 10.167.10.7910.167.10.79
4110.167.10.80/3110.167.10.80 – 10.167.10.8110.167.10.81
4210.167.10.82/3110.167.10.82 – 10.167.10.8310.167.10.83
4310.167.10.84/3110.167.10.84 – 10.167.10.8510.167.10.85
4410.167.10.86/3110.167.10.86 – 10.167.10.8710.167.10.87
4510.167.10.88/3110.167.10.88 – 10.167.10.8910.167.10.89
4610.167.10.90/3110.167.10.90 – 10.167.10.9110.167.10.91
4710.167.10.92/3110.167.10.92 – 10.167.10.9310.167.10.93
4810.167.10.94/3110.167.10.94 – 10.167.10.9510.167.10.95
4910.167.10.96/3110.167.10.96 – 10.167.10.9710.167.10.97
5010.167.10.98/3110.167.10.98 – 10.167.10.9910.167.10.99
5110.167.10.100/3110.167.10.100 – 10.167.10.10110.167.10.101
5210.167.10.102/3110.167.10.102 – 10.167.10.10310.167.10.103
5310.167.10.104/3110.167.10.104 – 10.167.10.10510.167.10.105
5410.167.10.106/3110.167.10.106 – 10.167.10.10710.167.10.107
5510.167.10.108/3110.167.10.108 – 10.167.10.10910.167.10.109
5610.167.10.110/3110.167.10.110 – 10.167.10.11110.167.10.111
5710.167.10.112/3110.167.10.112 – 10.167.10.11310.167.10.113
5810.167.10.114/3110.167.10.114 – 10.167.10.11510.167.10.115
5910.167.10.116/3110.167.10.116 – 10.167.10.11710.167.10.117
6010.167.10.118/3110.167.10.118 – 10.167.10.11910.167.10.119
6110.167.10.120/3110.167.10.120 – 10.167.10.12110.167.10.121
6210.167.10.122/3110.167.10.122 – 10.167.10.12310.167.10.123
6310.167.10.124/3110.167.10.124 – 10.167.10.12510.167.10.125
6410.167.10.126/3110.167.10.126 – 10.167.10.12710.167.10.127
6510.167.10.128/3110.167.10.128 – 10.167.10.12910.167.10.129
6610.167.10.130/3110.167.10.130 – 10.167.10.13110.167.10.131
6710.167.10.132/3110.167.10.132 – 10.167.10.13310.167.10.133
6810.167.10.134/3110.167.10.134 – 10.167.10.13510.167.10.135
6910.167.10.136/3110.167.10.136 – 10.167.10.13710.167.10.137
7010.167.10.138/3110.167.10.138 – 10.167.10.13910.167.10.139
7110.167.10.140/3110.167.10.140 – 10.167.10.14110.167.10.141
7210.167.10.142/3110.167.10.142 – 10.167.10.14310.167.10.143
7310.167.10.144/3110.167.10.144 – 10.167.10.14510.167.10.145
7410.167.10.146/3110.167.10.146 – 10.167.10.14710.167.10.147
7510.167.10.148/3110.167.10.148 – 10.167.10.14910.167.10.149
7610.167.10.150/3110.167.10.150 – 10.167.10.15110.167.10.151
7710.167.10.152/3110.167.10.152 – 10.167.10.15310.167.10.153
7810.167.10.154/3110.167.10.154 – 10.167.10.15510.167.10.155
7910.167.10.156/3110.167.10.156 – 10.167.10.15710.167.10.157
8010.167.10.158/3110.167.10.158 – 10.167.10.15910.167.10.159
8110.167.10.160/3110.167.10.160 – 10.167.10.16110.167.10.161
8210.167.10.162/3110.167.10.162 – 10.167.10.16310.167.10.163
8310.167.10.164/3110.167.10.164 – 10.167.10.16510.167.10.165
8410.167.10.166/3110.167.10.166 – 10.167.10.16710.167.10.167
8510.167.10.168/3110.167.10.168 – 10.167.10.16910.167.10.169
8610.167.10.170/3110.167.10.170 – 10.167.10.17110.167.10.171
8710.167.10.172/3110.167.10.172 – 10.167.10.17310.167.10.173
8810.167.10.174/3110.167.10.174 – 10.167.10.17510.167.10.175
8910.167.10.176/3110.167.10.176 – 10.167.10.17710.167.10.177
9010.167.10.178/3110.167.10.178 – 10.167.10.17910.167.10.179
9110.167.10.180/3110.167.10.180 – 10.167.10.18110.167.10.181
9210.167.10.182/3110.167.10.182 – 10.167.10.18310.167.10.183
9310.167.10.184/3110.167.10.184 – 10.167.10.18510.167.10.185
9410.167.10.186/3110.167.10.186 – 10.167.10.18710.167.10.187
9510.167.10.188/3110.167.10.188 – 10.167.10.18910.167.10.189
9610.167.10.190/3110.167.10.190 – 10.167.10.19110.167.10.191
9710.167.10.192/3110.167.10.192 – 10.167.10.19310.167.10.193
9810.167.10.194/3110.167.10.194 – 10.167.10.19510.167.10.195
9910.167.10.196/3110.167.10.196 – 10.167.10.19710.167.10.197
10010.167.10.198/3110.167.10.198 – 10.167.10.19910.167.10.199
10110.167.10.200/3110.167.10.200 – 10.167.10.20110.167.10.201
10210.167.10.202/3110.167.10.202 – 10.167.10.20310.167.10.203
10310.167.10.204/3110.167.10.204 – 10.167.10.20510.167.10.205
10410.167.10.206/3110.167.10.206 – 10.167.10.20710.167.10.207
10510.167.10.208/3110.167.10.208 – 10.167.10.20910.167.10.209
10610.167.10.210/3110.167.10.210 – 10.167.10.21110.167.10.211
10710.167.10.212/3110.167.10.212 – 10.167.10.21310.167.10.213
10810.167.10.214/3110.167.10.214 – 10.167.10.21510.167.10.215
10910.167.10.216/3110.167.10.216 – 10.167.10.21710.167.10.217
11010.167.10.218/3110.167.10.218 – 10.167.10.21910.167.10.219
11110.167.10.220/3110.167.10.220 – 10.167.10.22110.167.10.221
11210.167.10.222/3110.167.10.222 – 10.167.10.22310.167.10.223
11310.167.10.224/3110.167.10.224 – 10.167.10.22510.167.10.225
11410.167.10.226/3110.167.10.226 – 10.167.10.22710.167.10.227
11510.167.10.228/3110.167.10.228 – 10.167.10.22910.167.10.229
11610.167.10.230/3110.167.10.230 – 10.167.10.23110.167.10.231
11710.167.10.232/3110.167.10.232 – 10.167.10.23310.167.10.233
11810.167.10.234/3110.167.10.234 – 10.167.10.23510.167.10.235
11910.167.10.236/3110.167.10.236 – 10.167.10.23710.167.10.237
12010.167.10.238/3110.167.10.238 – 10.167.10.23910.167.10.239
12110.167.10.240/3110.167.10.240 – 10.167.10.24110.167.10.241
12210.167.10.242/3110.167.10.242 – 10.167.10.24310.167.10.243
12310.167.10.244/3110.167.10.244 – 10.167.10.24510.167.10.245
12410.167.10.246/3110.167.10.246 – 10.167.10.24710.167.10.247
12510.167.10.248/3110.167.10.248 – 10.167.10.24910.167.10.249
12610.167.10.250/3110.167.10.250 – 10.167.10.25110.167.10.251
12710.167.10.252/3110.167.10.252 – 10.167.10.25310.167.10.253
12810.167.10.254/3110.167.10.254 – 10.167.10.25510.167.10.255
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 →