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)10.167.235.0/24
network10.167.235.0/24
broadcast10.167.235.255
first host10.167.235.1
last host10.167.235.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.167.235.0/24
address00001010.10100111.11101011.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.10100111.11101011.00000000
broadcast00001010.10100111.11101011.11111111
green = network part, grey = host part
hex0x0aa7eb00
decimal178776832
reverse dns0.235.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:eb00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.167.235.0/3110.167.235.0 – 10.167.235.110.167.235.1
210.167.235.2/3110.167.235.2 – 10.167.235.310.167.235.3
310.167.235.4/3110.167.235.4 – 10.167.235.510.167.235.5
410.167.235.6/3110.167.235.6 – 10.167.235.710.167.235.7
510.167.235.8/3110.167.235.8 – 10.167.235.910.167.235.9
610.167.235.10/3110.167.235.10 – 10.167.235.1110.167.235.11
710.167.235.12/3110.167.235.12 – 10.167.235.1310.167.235.13
810.167.235.14/3110.167.235.14 – 10.167.235.1510.167.235.15
910.167.235.16/3110.167.235.16 – 10.167.235.1710.167.235.17
1010.167.235.18/3110.167.235.18 – 10.167.235.1910.167.235.19
1110.167.235.20/3110.167.235.20 – 10.167.235.2110.167.235.21
1210.167.235.22/3110.167.235.22 – 10.167.235.2310.167.235.23
1310.167.235.24/3110.167.235.24 – 10.167.235.2510.167.235.25
1410.167.235.26/3110.167.235.26 – 10.167.235.2710.167.235.27
1510.167.235.28/3110.167.235.28 – 10.167.235.2910.167.235.29
1610.167.235.30/3110.167.235.30 – 10.167.235.3110.167.235.31
1710.167.235.32/3110.167.235.32 – 10.167.235.3310.167.235.33
1810.167.235.34/3110.167.235.34 – 10.167.235.3510.167.235.35
1910.167.235.36/3110.167.235.36 – 10.167.235.3710.167.235.37
2010.167.235.38/3110.167.235.38 – 10.167.235.3910.167.235.39
2110.167.235.40/3110.167.235.40 – 10.167.235.4110.167.235.41
2210.167.235.42/3110.167.235.42 – 10.167.235.4310.167.235.43
2310.167.235.44/3110.167.235.44 – 10.167.235.4510.167.235.45
2410.167.235.46/3110.167.235.46 – 10.167.235.4710.167.235.47
2510.167.235.48/3110.167.235.48 – 10.167.235.4910.167.235.49
2610.167.235.50/3110.167.235.50 – 10.167.235.5110.167.235.51
2710.167.235.52/3110.167.235.52 – 10.167.235.5310.167.235.53
2810.167.235.54/3110.167.235.54 – 10.167.235.5510.167.235.55
2910.167.235.56/3110.167.235.56 – 10.167.235.5710.167.235.57
3010.167.235.58/3110.167.235.58 – 10.167.235.5910.167.235.59
3110.167.235.60/3110.167.235.60 – 10.167.235.6110.167.235.61
3210.167.235.62/3110.167.235.62 – 10.167.235.6310.167.235.63
3310.167.235.64/3110.167.235.64 – 10.167.235.6510.167.235.65
3410.167.235.66/3110.167.235.66 – 10.167.235.6710.167.235.67
3510.167.235.68/3110.167.235.68 – 10.167.235.6910.167.235.69
3610.167.235.70/3110.167.235.70 – 10.167.235.7110.167.235.71
3710.167.235.72/3110.167.235.72 – 10.167.235.7310.167.235.73
3810.167.235.74/3110.167.235.74 – 10.167.235.7510.167.235.75
3910.167.235.76/3110.167.235.76 – 10.167.235.7710.167.235.77
4010.167.235.78/3110.167.235.78 – 10.167.235.7910.167.235.79
4110.167.235.80/3110.167.235.80 – 10.167.235.8110.167.235.81
4210.167.235.82/3110.167.235.82 – 10.167.235.8310.167.235.83
4310.167.235.84/3110.167.235.84 – 10.167.235.8510.167.235.85
4410.167.235.86/3110.167.235.86 – 10.167.235.8710.167.235.87
4510.167.235.88/3110.167.235.88 – 10.167.235.8910.167.235.89
4610.167.235.90/3110.167.235.90 – 10.167.235.9110.167.235.91
4710.167.235.92/3110.167.235.92 – 10.167.235.9310.167.235.93
4810.167.235.94/3110.167.235.94 – 10.167.235.9510.167.235.95
4910.167.235.96/3110.167.235.96 – 10.167.235.9710.167.235.97
5010.167.235.98/3110.167.235.98 – 10.167.235.9910.167.235.99
5110.167.235.100/3110.167.235.100 – 10.167.235.10110.167.235.101
5210.167.235.102/3110.167.235.102 – 10.167.235.10310.167.235.103
5310.167.235.104/3110.167.235.104 – 10.167.235.10510.167.235.105
5410.167.235.106/3110.167.235.106 – 10.167.235.10710.167.235.107
5510.167.235.108/3110.167.235.108 – 10.167.235.10910.167.235.109
5610.167.235.110/3110.167.235.110 – 10.167.235.11110.167.235.111
5710.167.235.112/3110.167.235.112 – 10.167.235.11310.167.235.113
5810.167.235.114/3110.167.235.114 – 10.167.235.11510.167.235.115
5910.167.235.116/3110.167.235.116 – 10.167.235.11710.167.235.117
6010.167.235.118/3110.167.235.118 – 10.167.235.11910.167.235.119
6110.167.235.120/3110.167.235.120 – 10.167.235.12110.167.235.121
6210.167.235.122/3110.167.235.122 – 10.167.235.12310.167.235.123
6310.167.235.124/3110.167.235.124 – 10.167.235.12510.167.235.125
6410.167.235.126/3110.167.235.126 – 10.167.235.12710.167.235.127
6510.167.235.128/3110.167.235.128 – 10.167.235.12910.167.235.129
6610.167.235.130/3110.167.235.130 – 10.167.235.13110.167.235.131
6710.167.235.132/3110.167.235.132 – 10.167.235.13310.167.235.133
6810.167.235.134/3110.167.235.134 – 10.167.235.13510.167.235.135
6910.167.235.136/3110.167.235.136 – 10.167.235.13710.167.235.137
7010.167.235.138/3110.167.235.138 – 10.167.235.13910.167.235.139
7110.167.235.140/3110.167.235.140 – 10.167.235.14110.167.235.141
7210.167.235.142/3110.167.235.142 – 10.167.235.14310.167.235.143
7310.167.235.144/3110.167.235.144 – 10.167.235.14510.167.235.145
7410.167.235.146/3110.167.235.146 – 10.167.235.14710.167.235.147
7510.167.235.148/3110.167.235.148 – 10.167.235.14910.167.235.149
7610.167.235.150/3110.167.235.150 – 10.167.235.15110.167.235.151
7710.167.235.152/3110.167.235.152 – 10.167.235.15310.167.235.153
7810.167.235.154/3110.167.235.154 – 10.167.235.15510.167.235.155
7910.167.235.156/3110.167.235.156 – 10.167.235.15710.167.235.157
8010.167.235.158/3110.167.235.158 – 10.167.235.15910.167.235.159
8110.167.235.160/3110.167.235.160 – 10.167.235.16110.167.235.161
8210.167.235.162/3110.167.235.162 – 10.167.235.16310.167.235.163
8310.167.235.164/3110.167.235.164 – 10.167.235.16510.167.235.165
8410.167.235.166/3110.167.235.166 – 10.167.235.16710.167.235.167
8510.167.235.168/3110.167.235.168 – 10.167.235.16910.167.235.169
8610.167.235.170/3110.167.235.170 – 10.167.235.17110.167.235.171
8710.167.235.172/3110.167.235.172 – 10.167.235.17310.167.235.173
8810.167.235.174/3110.167.235.174 – 10.167.235.17510.167.235.175
8910.167.235.176/3110.167.235.176 – 10.167.235.17710.167.235.177
9010.167.235.178/3110.167.235.178 – 10.167.235.17910.167.235.179
9110.167.235.180/3110.167.235.180 – 10.167.235.18110.167.235.181
9210.167.235.182/3110.167.235.182 – 10.167.235.18310.167.235.183
9310.167.235.184/3110.167.235.184 – 10.167.235.18510.167.235.185
9410.167.235.186/3110.167.235.186 – 10.167.235.18710.167.235.187
9510.167.235.188/3110.167.235.188 – 10.167.235.18910.167.235.189
9610.167.235.190/3110.167.235.190 – 10.167.235.19110.167.235.191
9710.167.235.192/3110.167.235.192 – 10.167.235.19310.167.235.193
9810.167.235.194/3110.167.235.194 – 10.167.235.19510.167.235.195
9910.167.235.196/3110.167.235.196 – 10.167.235.19710.167.235.197
10010.167.235.198/3110.167.235.198 – 10.167.235.19910.167.235.199
10110.167.235.200/3110.167.235.200 – 10.167.235.20110.167.235.201
10210.167.235.202/3110.167.235.202 – 10.167.235.20310.167.235.203
10310.167.235.204/3110.167.235.204 – 10.167.235.20510.167.235.205
10410.167.235.206/3110.167.235.206 – 10.167.235.20710.167.235.207
10510.167.235.208/3110.167.235.208 – 10.167.235.20910.167.235.209
10610.167.235.210/3110.167.235.210 – 10.167.235.21110.167.235.211
10710.167.235.212/3110.167.235.212 – 10.167.235.21310.167.235.213
10810.167.235.214/3110.167.235.214 – 10.167.235.21510.167.235.215
10910.167.235.216/3110.167.235.216 – 10.167.235.21710.167.235.217
11010.167.235.218/3110.167.235.218 – 10.167.235.21910.167.235.219
11110.167.235.220/3110.167.235.220 – 10.167.235.22110.167.235.221
11210.167.235.222/3110.167.235.222 – 10.167.235.22310.167.235.223
11310.167.235.224/3110.167.235.224 – 10.167.235.22510.167.235.225
11410.167.235.226/3110.167.235.226 – 10.167.235.22710.167.235.227
11510.167.235.228/3110.167.235.228 – 10.167.235.22910.167.235.229
11610.167.235.230/3110.167.235.230 – 10.167.235.23110.167.235.231
11710.167.235.232/3110.167.235.232 – 10.167.235.23310.167.235.233
11810.167.235.234/3110.167.235.234 – 10.167.235.23510.167.235.235
11910.167.235.236/3110.167.235.236 – 10.167.235.23710.167.235.237
12010.167.235.238/3110.167.235.238 – 10.167.235.23910.167.235.239
12110.167.235.240/3110.167.235.240 – 10.167.235.24110.167.235.241
12210.167.235.242/3110.167.235.242 – 10.167.235.24310.167.235.243
12310.167.235.244/3110.167.235.244 – 10.167.235.24510.167.235.245
12410.167.235.246/3110.167.235.246 – 10.167.235.24710.167.235.247
12510.167.235.248/3110.167.235.248 – 10.167.235.24910.167.235.249
12610.167.235.250/3110.167.235.250 – 10.167.235.25110.167.235.251
12710.167.235.252/3110.167.235.252 – 10.167.235.25310.167.235.253
12810.167.235.254/3110.167.235.254 – 10.167.235.25510.167.235.255
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 →