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)10.167.236.0/24
network10.167.236.0/24
broadcast10.167.236.255
first host10.167.236.1
last host10.167.236.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.167.236.0/24
address00001010.10100111.11101100.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.10100111.11101100.00000000
broadcast00001010.10100111.11101100.11111111
green = network part, grey = host part
hex0x0aa7ec00
decimal178777088
reverse dns0.236.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:ec00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.167.236.0/3110.167.236.0 – 10.167.236.110.167.236.1
210.167.236.2/3110.167.236.2 – 10.167.236.310.167.236.3
310.167.236.4/3110.167.236.4 – 10.167.236.510.167.236.5
410.167.236.6/3110.167.236.6 – 10.167.236.710.167.236.7
510.167.236.8/3110.167.236.8 – 10.167.236.910.167.236.9
610.167.236.10/3110.167.236.10 – 10.167.236.1110.167.236.11
710.167.236.12/3110.167.236.12 – 10.167.236.1310.167.236.13
810.167.236.14/3110.167.236.14 – 10.167.236.1510.167.236.15
910.167.236.16/3110.167.236.16 – 10.167.236.1710.167.236.17
1010.167.236.18/3110.167.236.18 – 10.167.236.1910.167.236.19
1110.167.236.20/3110.167.236.20 – 10.167.236.2110.167.236.21
1210.167.236.22/3110.167.236.22 – 10.167.236.2310.167.236.23
1310.167.236.24/3110.167.236.24 – 10.167.236.2510.167.236.25
1410.167.236.26/3110.167.236.26 – 10.167.236.2710.167.236.27
1510.167.236.28/3110.167.236.28 – 10.167.236.2910.167.236.29
1610.167.236.30/3110.167.236.30 – 10.167.236.3110.167.236.31
1710.167.236.32/3110.167.236.32 – 10.167.236.3310.167.236.33
1810.167.236.34/3110.167.236.34 – 10.167.236.3510.167.236.35
1910.167.236.36/3110.167.236.36 – 10.167.236.3710.167.236.37
2010.167.236.38/3110.167.236.38 – 10.167.236.3910.167.236.39
2110.167.236.40/3110.167.236.40 – 10.167.236.4110.167.236.41
2210.167.236.42/3110.167.236.42 – 10.167.236.4310.167.236.43
2310.167.236.44/3110.167.236.44 – 10.167.236.4510.167.236.45
2410.167.236.46/3110.167.236.46 – 10.167.236.4710.167.236.47
2510.167.236.48/3110.167.236.48 – 10.167.236.4910.167.236.49
2610.167.236.50/3110.167.236.50 – 10.167.236.5110.167.236.51
2710.167.236.52/3110.167.236.52 – 10.167.236.5310.167.236.53
2810.167.236.54/3110.167.236.54 – 10.167.236.5510.167.236.55
2910.167.236.56/3110.167.236.56 – 10.167.236.5710.167.236.57
3010.167.236.58/3110.167.236.58 – 10.167.236.5910.167.236.59
3110.167.236.60/3110.167.236.60 – 10.167.236.6110.167.236.61
3210.167.236.62/3110.167.236.62 – 10.167.236.6310.167.236.63
3310.167.236.64/3110.167.236.64 – 10.167.236.6510.167.236.65
3410.167.236.66/3110.167.236.66 – 10.167.236.6710.167.236.67
3510.167.236.68/3110.167.236.68 – 10.167.236.6910.167.236.69
3610.167.236.70/3110.167.236.70 – 10.167.236.7110.167.236.71
3710.167.236.72/3110.167.236.72 – 10.167.236.7310.167.236.73
3810.167.236.74/3110.167.236.74 – 10.167.236.7510.167.236.75
3910.167.236.76/3110.167.236.76 – 10.167.236.7710.167.236.77
4010.167.236.78/3110.167.236.78 – 10.167.236.7910.167.236.79
4110.167.236.80/3110.167.236.80 – 10.167.236.8110.167.236.81
4210.167.236.82/3110.167.236.82 – 10.167.236.8310.167.236.83
4310.167.236.84/3110.167.236.84 – 10.167.236.8510.167.236.85
4410.167.236.86/3110.167.236.86 – 10.167.236.8710.167.236.87
4510.167.236.88/3110.167.236.88 – 10.167.236.8910.167.236.89
4610.167.236.90/3110.167.236.90 – 10.167.236.9110.167.236.91
4710.167.236.92/3110.167.236.92 – 10.167.236.9310.167.236.93
4810.167.236.94/3110.167.236.94 – 10.167.236.9510.167.236.95
4910.167.236.96/3110.167.236.96 – 10.167.236.9710.167.236.97
5010.167.236.98/3110.167.236.98 – 10.167.236.9910.167.236.99
5110.167.236.100/3110.167.236.100 – 10.167.236.10110.167.236.101
5210.167.236.102/3110.167.236.102 – 10.167.236.10310.167.236.103
5310.167.236.104/3110.167.236.104 – 10.167.236.10510.167.236.105
5410.167.236.106/3110.167.236.106 – 10.167.236.10710.167.236.107
5510.167.236.108/3110.167.236.108 – 10.167.236.10910.167.236.109
5610.167.236.110/3110.167.236.110 – 10.167.236.11110.167.236.111
5710.167.236.112/3110.167.236.112 – 10.167.236.11310.167.236.113
5810.167.236.114/3110.167.236.114 – 10.167.236.11510.167.236.115
5910.167.236.116/3110.167.236.116 – 10.167.236.11710.167.236.117
6010.167.236.118/3110.167.236.118 – 10.167.236.11910.167.236.119
6110.167.236.120/3110.167.236.120 – 10.167.236.12110.167.236.121
6210.167.236.122/3110.167.236.122 – 10.167.236.12310.167.236.123
6310.167.236.124/3110.167.236.124 – 10.167.236.12510.167.236.125
6410.167.236.126/3110.167.236.126 – 10.167.236.12710.167.236.127
6510.167.236.128/3110.167.236.128 – 10.167.236.12910.167.236.129
6610.167.236.130/3110.167.236.130 – 10.167.236.13110.167.236.131
6710.167.236.132/3110.167.236.132 – 10.167.236.13310.167.236.133
6810.167.236.134/3110.167.236.134 – 10.167.236.13510.167.236.135
6910.167.236.136/3110.167.236.136 – 10.167.236.13710.167.236.137
7010.167.236.138/3110.167.236.138 – 10.167.236.13910.167.236.139
7110.167.236.140/3110.167.236.140 – 10.167.236.14110.167.236.141
7210.167.236.142/3110.167.236.142 – 10.167.236.14310.167.236.143
7310.167.236.144/3110.167.236.144 – 10.167.236.14510.167.236.145
7410.167.236.146/3110.167.236.146 – 10.167.236.14710.167.236.147
7510.167.236.148/3110.167.236.148 – 10.167.236.14910.167.236.149
7610.167.236.150/3110.167.236.150 – 10.167.236.15110.167.236.151
7710.167.236.152/3110.167.236.152 – 10.167.236.15310.167.236.153
7810.167.236.154/3110.167.236.154 – 10.167.236.15510.167.236.155
7910.167.236.156/3110.167.236.156 – 10.167.236.15710.167.236.157
8010.167.236.158/3110.167.236.158 – 10.167.236.15910.167.236.159
8110.167.236.160/3110.167.236.160 – 10.167.236.16110.167.236.161
8210.167.236.162/3110.167.236.162 – 10.167.236.16310.167.236.163
8310.167.236.164/3110.167.236.164 – 10.167.236.16510.167.236.165
8410.167.236.166/3110.167.236.166 – 10.167.236.16710.167.236.167
8510.167.236.168/3110.167.236.168 – 10.167.236.16910.167.236.169
8610.167.236.170/3110.167.236.170 – 10.167.236.17110.167.236.171
8710.167.236.172/3110.167.236.172 – 10.167.236.17310.167.236.173
8810.167.236.174/3110.167.236.174 – 10.167.236.17510.167.236.175
8910.167.236.176/3110.167.236.176 – 10.167.236.17710.167.236.177
9010.167.236.178/3110.167.236.178 – 10.167.236.17910.167.236.179
9110.167.236.180/3110.167.236.180 – 10.167.236.18110.167.236.181
9210.167.236.182/3110.167.236.182 – 10.167.236.18310.167.236.183
9310.167.236.184/3110.167.236.184 – 10.167.236.18510.167.236.185
9410.167.236.186/3110.167.236.186 – 10.167.236.18710.167.236.187
9510.167.236.188/3110.167.236.188 – 10.167.236.18910.167.236.189
9610.167.236.190/3110.167.236.190 – 10.167.236.19110.167.236.191
9710.167.236.192/3110.167.236.192 – 10.167.236.19310.167.236.193
9810.167.236.194/3110.167.236.194 – 10.167.236.19510.167.236.195
9910.167.236.196/3110.167.236.196 – 10.167.236.19710.167.236.197
10010.167.236.198/3110.167.236.198 – 10.167.236.19910.167.236.199
10110.167.236.200/3110.167.236.200 – 10.167.236.20110.167.236.201
10210.167.236.202/3110.167.236.202 – 10.167.236.20310.167.236.203
10310.167.236.204/3110.167.236.204 – 10.167.236.20510.167.236.205
10410.167.236.206/3110.167.236.206 – 10.167.236.20710.167.236.207
10510.167.236.208/3110.167.236.208 – 10.167.236.20910.167.236.209
10610.167.236.210/3110.167.236.210 – 10.167.236.21110.167.236.211
10710.167.236.212/3110.167.236.212 – 10.167.236.21310.167.236.213
10810.167.236.214/3110.167.236.214 – 10.167.236.21510.167.236.215
10910.167.236.216/3110.167.236.216 – 10.167.236.21710.167.236.217
11010.167.236.218/3110.167.236.218 – 10.167.236.21910.167.236.219
11110.167.236.220/3110.167.236.220 – 10.167.236.22110.167.236.221
11210.167.236.222/3110.167.236.222 – 10.167.236.22310.167.236.223
11310.167.236.224/3110.167.236.224 – 10.167.236.22510.167.236.225
11410.167.236.226/3110.167.236.226 – 10.167.236.22710.167.236.227
11510.167.236.228/3110.167.236.228 – 10.167.236.22910.167.236.229
11610.167.236.230/3110.167.236.230 – 10.167.236.23110.167.236.231
11710.167.236.232/3110.167.236.232 – 10.167.236.23310.167.236.233
11810.167.236.234/3110.167.236.234 – 10.167.236.23510.167.236.235
11910.167.236.236/3110.167.236.236 – 10.167.236.23710.167.236.237
12010.167.236.238/3110.167.236.238 – 10.167.236.23910.167.236.239
12110.167.236.240/3110.167.236.240 – 10.167.236.24110.167.236.241
12210.167.236.242/3110.167.236.242 – 10.167.236.24310.167.236.243
12310.167.236.244/3110.167.236.244 – 10.167.236.24510.167.236.245
12410.167.236.246/3110.167.236.246 – 10.167.236.24710.167.236.247
12510.167.236.248/3110.167.236.248 – 10.167.236.24910.167.236.249
12610.167.236.250/3110.167.236.250 – 10.167.236.25110.167.236.251
12710.167.236.252/3110.167.236.252 – 10.167.236.25310.167.236.253
12810.167.236.254/3110.167.236.254 – 10.167.236.25510.167.236.255
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 →