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)10.167.5.0/24
network10.167.5.0/24
broadcast10.167.5.255
first host10.167.5.1
last host10.167.5.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.167.5.0/24
address00001010.10100111.00000101.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.10100111.00000101.00000000
broadcast00001010.10100111.00000101.11111111
green = network part, grey = host part
hex0x0aa70500
decimal178717952
reverse dns0.5.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:500

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.167.5.0/3110.167.5.0 – 10.167.5.110.167.5.1
210.167.5.2/3110.167.5.2 – 10.167.5.310.167.5.3
310.167.5.4/3110.167.5.4 – 10.167.5.510.167.5.5
410.167.5.6/3110.167.5.6 – 10.167.5.710.167.5.7
510.167.5.8/3110.167.5.8 – 10.167.5.910.167.5.9
610.167.5.10/3110.167.5.10 – 10.167.5.1110.167.5.11
710.167.5.12/3110.167.5.12 – 10.167.5.1310.167.5.13
810.167.5.14/3110.167.5.14 – 10.167.5.1510.167.5.15
910.167.5.16/3110.167.5.16 – 10.167.5.1710.167.5.17
1010.167.5.18/3110.167.5.18 – 10.167.5.1910.167.5.19
1110.167.5.20/3110.167.5.20 – 10.167.5.2110.167.5.21
1210.167.5.22/3110.167.5.22 – 10.167.5.2310.167.5.23
1310.167.5.24/3110.167.5.24 – 10.167.5.2510.167.5.25
1410.167.5.26/3110.167.5.26 – 10.167.5.2710.167.5.27
1510.167.5.28/3110.167.5.28 – 10.167.5.2910.167.5.29
1610.167.5.30/3110.167.5.30 – 10.167.5.3110.167.5.31
1710.167.5.32/3110.167.5.32 – 10.167.5.3310.167.5.33
1810.167.5.34/3110.167.5.34 – 10.167.5.3510.167.5.35
1910.167.5.36/3110.167.5.36 – 10.167.5.3710.167.5.37
2010.167.5.38/3110.167.5.38 – 10.167.5.3910.167.5.39
2110.167.5.40/3110.167.5.40 – 10.167.5.4110.167.5.41
2210.167.5.42/3110.167.5.42 – 10.167.5.4310.167.5.43
2310.167.5.44/3110.167.5.44 – 10.167.5.4510.167.5.45
2410.167.5.46/3110.167.5.46 – 10.167.5.4710.167.5.47
2510.167.5.48/3110.167.5.48 – 10.167.5.4910.167.5.49
2610.167.5.50/3110.167.5.50 – 10.167.5.5110.167.5.51
2710.167.5.52/3110.167.5.52 – 10.167.5.5310.167.5.53
2810.167.5.54/3110.167.5.54 – 10.167.5.5510.167.5.55
2910.167.5.56/3110.167.5.56 – 10.167.5.5710.167.5.57
3010.167.5.58/3110.167.5.58 – 10.167.5.5910.167.5.59
3110.167.5.60/3110.167.5.60 – 10.167.5.6110.167.5.61
3210.167.5.62/3110.167.5.62 – 10.167.5.6310.167.5.63
3310.167.5.64/3110.167.5.64 – 10.167.5.6510.167.5.65
3410.167.5.66/3110.167.5.66 – 10.167.5.6710.167.5.67
3510.167.5.68/3110.167.5.68 – 10.167.5.6910.167.5.69
3610.167.5.70/3110.167.5.70 – 10.167.5.7110.167.5.71
3710.167.5.72/3110.167.5.72 – 10.167.5.7310.167.5.73
3810.167.5.74/3110.167.5.74 – 10.167.5.7510.167.5.75
3910.167.5.76/3110.167.5.76 – 10.167.5.7710.167.5.77
4010.167.5.78/3110.167.5.78 – 10.167.5.7910.167.5.79
4110.167.5.80/3110.167.5.80 – 10.167.5.8110.167.5.81
4210.167.5.82/3110.167.5.82 – 10.167.5.8310.167.5.83
4310.167.5.84/3110.167.5.84 – 10.167.5.8510.167.5.85
4410.167.5.86/3110.167.5.86 – 10.167.5.8710.167.5.87
4510.167.5.88/3110.167.5.88 – 10.167.5.8910.167.5.89
4610.167.5.90/3110.167.5.90 – 10.167.5.9110.167.5.91
4710.167.5.92/3110.167.5.92 – 10.167.5.9310.167.5.93
4810.167.5.94/3110.167.5.94 – 10.167.5.9510.167.5.95
4910.167.5.96/3110.167.5.96 – 10.167.5.9710.167.5.97
5010.167.5.98/3110.167.5.98 – 10.167.5.9910.167.5.99
5110.167.5.100/3110.167.5.100 – 10.167.5.10110.167.5.101
5210.167.5.102/3110.167.5.102 – 10.167.5.10310.167.5.103
5310.167.5.104/3110.167.5.104 – 10.167.5.10510.167.5.105
5410.167.5.106/3110.167.5.106 – 10.167.5.10710.167.5.107
5510.167.5.108/3110.167.5.108 – 10.167.5.10910.167.5.109
5610.167.5.110/3110.167.5.110 – 10.167.5.11110.167.5.111
5710.167.5.112/3110.167.5.112 – 10.167.5.11310.167.5.113
5810.167.5.114/3110.167.5.114 – 10.167.5.11510.167.5.115
5910.167.5.116/3110.167.5.116 – 10.167.5.11710.167.5.117
6010.167.5.118/3110.167.5.118 – 10.167.5.11910.167.5.119
6110.167.5.120/3110.167.5.120 – 10.167.5.12110.167.5.121
6210.167.5.122/3110.167.5.122 – 10.167.5.12310.167.5.123
6310.167.5.124/3110.167.5.124 – 10.167.5.12510.167.5.125
6410.167.5.126/3110.167.5.126 – 10.167.5.12710.167.5.127
6510.167.5.128/3110.167.5.128 – 10.167.5.12910.167.5.129
6610.167.5.130/3110.167.5.130 – 10.167.5.13110.167.5.131
6710.167.5.132/3110.167.5.132 – 10.167.5.13310.167.5.133
6810.167.5.134/3110.167.5.134 – 10.167.5.13510.167.5.135
6910.167.5.136/3110.167.5.136 – 10.167.5.13710.167.5.137
7010.167.5.138/3110.167.5.138 – 10.167.5.13910.167.5.139
7110.167.5.140/3110.167.5.140 – 10.167.5.14110.167.5.141
7210.167.5.142/3110.167.5.142 – 10.167.5.14310.167.5.143
7310.167.5.144/3110.167.5.144 – 10.167.5.14510.167.5.145
7410.167.5.146/3110.167.5.146 – 10.167.5.14710.167.5.147
7510.167.5.148/3110.167.5.148 – 10.167.5.14910.167.5.149
7610.167.5.150/3110.167.5.150 – 10.167.5.15110.167.5.151
7710.167.5.152/3110.167.5.152 – 10.167.5.15310.167.5.153
7810.167.5.154/3110.167.5.154 – 10.167.5.15510.167.5.155
7910.167.5.156/3110.167.5.156 – 10.167.5.15710.167.5.157
8010.167.5.158/3110.167.5.158 – 10.167.5.15910.167.5.159
8110.167.5.160/3110.167.5.160 – 10.167.5.16110.167.5.161
8210.167.5.162/3110.167.5.162 – 10.167.5.16310.167.5.163
8310.167.5.164/3110.167.5.164 – 10.167.5.16510.167.5.165
8410.167.5.166/3110.167.5.166 – 10.167.5.16710.167.5.167
8510.167.5.168/3110.167.5.168 – 10.167.5.16910.167.5.169
8610.167.5.170/3110.167.5.170 – 10.167.5.17110.167.5.171
8710.167.5.172/3110.167.5.172 – 10.167.5.17310.167.5.173
8810.167.5.174/3110.167.5.174 – 10.167.5.17510.167.5.175
8910.167.5.176/3110.167.5.176 – 10.167.5.17710.167.5.177
9010.167.5.178/3110.167.5.178 – 10.167.5.17910.167.5.179
9110.167.5.180/3110.167.5.180 – 10.167.5.18110.167.5.181
9210.167.5.182/3110.167.5.182 – 10.167.5.18310.167.5.183
9310.167.5.184/3110.167.5.184 – 10.167.5.18510.167.5.185
9410.167.5.186/3110.167.5.186 – 10.167.5.18710.167.5.187
9510.167.5.188/3110.167.5.188 – 10.167.5.18910.167.5.189
9610.167.5.190/3110.167.5.190 – 10.167.5.19110.167.5.191
9710.167.5.192/3110.167.5.192 – 10.167.5.19310.167.5.193
9810.167.5.194/3110.167.5.194 – 10.167.5.19510.167.5.195
9910.167.5.196/3110.167.5.196 – 10.167.5.19710.167.5.197
10010.167.5.198/3110.167.5.198 – 10.167.5.19910.167.5.199
10110.167.5.200/3110.167.5.200 – 10.167.5.20110.167.5.201
10210.167.5.202/3110.167.5.202 – 10.167.5.20310.167.5.203
10310.167.5.204/3110.167.5.204 – 10.167.5.20510.167.5.205
10410.167.5.206/3110.167.5.206 – 10.167.5.20710.167.5.207
10510.167.5.208/3110.167.5.208 – 10.167.5.20910.167.5.209
10610.167.5.210/3110.167.5.210 – 10.167.5.21110.167.5.211
10710.167.5.212/3110.167.5.212 – 10.167.5.21310.167.5.213
10810.167.5.214/3110.167.5.214 – 10.167.5.21510.167.5.215
10910.167.5.216/3110.167.5.216 – 10.167.5.21710.167.5.217
11010.167.5.218/3110.167.5.218 – 10.167.5.21910.167.5.219
11110.167.5.220/3110.167.5.220 – 10.167.5.22110.167.5.221
11210.167.5.222/3110.167.5.222 – 10.167.5.22310.167.5.223
11310.167.5.224/3110.167.5.224 – 10.167.5.22510.167.5.225
11410.167.5.226/3110.167.5.226 – 10.167.5.22710.167.5.227
11510.167.5.228/3110.167.5.228 – 10.167.5.22910.167.5.229
11610.167.5.230/3110.167.5.230 – 10.167.5.23110.167.5.231
11710.167.5.232/3110.167.5.232 – 10.167.5.23310.167.5.233
11810.167.5.234/3110.167.5.234 – 10.167.5.23510.167.5.235
11910.167.5.236/3110.167.5.236 – 10.167.5.23710.167.5.237
12010.167.5.238/3110.167.5.238 – 10.167.5.23910.167.5.239
12110.167.5.240/3110.167.5.240 – 10.167.5.24110.167.5.241
12210.167.5.242/3110.167.5.242 – 10.167.5.24310.167.5.243
12310.167.5.244/3110.167.5.244 – 10.167.5.24510.167.5.245
12410.167.5.246/3110.167.5.246 – 10.167.5.24710.167.5.247
12510.167.5.248/3110.167.5.248 – 10.167.5.24910.167.5.249
12610.167.5.250/3110.167.5.250 – 10.167.5.25110.167.5.251
12710.167.5.252/3110.167.5.252 – 10.167.5.25310.167.5.253
12810.167.5.254/3110.167.5.254 – 10.167.5.25510.167.5.255
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 →