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)10.167.135.0/24
network10.167.135.0/24
broadcast10.167.135.255
first host10.167.135.1
last host10.167.135.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.167.135.0/24
address00001010.10100111.10000111.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.10100111.10000111.00000000
broadcast00001010.10100111.10000111.11111111
green = network part, grey = host part
hex0x0aa78700
decimal178751232
reverse dns0.135.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:8700

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.167.135.0/3110.167.135.0 – 10.167.135.110.167.135.1
210.167.135.2/3110.167.135.2 – 10.167.135.310.167.135.3
310.167.135.4/3110.167.135.4 – 10.167.135.510.167.135.5
410.167.135.6/3110.167.135.6 – 10.167.135.710.167.135.7
510.167.135.8/3110.167.135.8 – 10.167.135.910.167.135.9
610.167.135.10/3110.167.135.10 – 10.167.135.1110.167.135.11
710.167.135.12/3110.167.135.12 – 10.167.135.1310.167.135.13
810.167.135.14/3110.167.135.14 – 10.167.135.1510.167.135.15
910.167.135.16/3110.167.135.16 – 10.167.135.1710.167.135.17
1010.167.135.18/3110.167.135.18 – 10.167.135.1910.167.135.19
1110.167.135.20/3110.167.135.20 – 10.167.135.2110.167.135.21
1210.167.135.22/3110.167.135.22 – 10.167.135.2310.167.135.23
1310.167.135.24/3110.167.135.24 – 10.167.135.2510.167.135.25
1410.167.135.26/3110.167.135.26 – 10.167.135.2710.167.135.27
1510.167.135.28/3110.167.135.28 – 10.167.135.2910.167.135.29
1610.167.135.30/3110.167.135.30 – 10.167.135.3110.167.135.31
1710.167.135.32/3110.167.135.32 – 10.167.135.3310.167.135.33
1810.167.135.34/3110.167.135.34 – 10.167.135.3510.167.135.35
1910.167.135.36/3110.167.135.36 – 10.167.135.3710.167.135.37
2010.167.135.38/3110.167.135.38 – 10.167.135.3910.167.135.39
2110.167.135.40/3110.167.135.40 – 10.167.135.4110.167.135.41
2210.167.135.42/3110.167.135.42 – 10.167.135.4310.167.135.43
2310.167.135.44/3110.167.135.44 – 10.167.135.4510.167.135.45
2410.167.135.46/3110.167.135.46 – 10.167.135.4710.167.135.47
2510.167.135.48/3110.167.135.48 – 10.167.135.4910.167.135.49
2610.167.135.50/3110.167.135.50 – 10.167.135.5110.167.135.51
2710.167.135.52/3110.167.135.52 – 10.167.135.5310.167.135.53
2810.167.135.54/3110.167.135.54 – 10.167.135.5510.167.135.55
2910.167.135.56/3110.167.135.56 – 10.167.135.5710.167.135.57
3010.167.135.58/3110.167.135.58 – 10.167.135.5910.167.135.59
3110.167.135.60/3110.167.135.60 – 10.167.135.6110.167.135.61
3210.167.135.62/3110.167.135.62 – 10.167.135.6310.167.135.63
3310.167.135.64/3110.167.135.64 – 10.167.135.6510.167.135.65
3410.167.135.66/3110.167.135.66 – 10.167.135.6710.167.135.67
3510.167.135.68/3110.167.135.68 – 10.167.135.6910.167.135.69
3610.167.135.70/3110.167.135.70 – 10.167.135.7110.167.135.71
3710.167.135.72/3110.167.135.72 – 10.167.135.7310.167.135.73
3810.167.135.74/3110.167.135.74 – 10.167.135.7510.167.135.75
3910.167.135.76/3110.167.135.76 – 10.167.135.7710.167.135.77
4010.167.135.78/3110.167.135.78 – 10.167.135.7910.167.135.79
4110.167.135.80/3110.167.135.80 – 10.167.135.8110.167.135.81
4210.167.135.82/3110.167.135.82 – 10.167.135.8310.167.135.83
4310.167.135.84/3110.167.135.84 – 10.167.135.8510.167.135.85
4410.167.135.86/3110.167.135.86 – 10.167.135.8710.167.135.87
4510.167.135.88/3110.167.135.88 – 10.167.135.8910.167.135.89
4610.167.135.90/3110.167.135.90 – 10.167.135.9110.167.135.91
4710.167.135.92/3110.167.135.92 – 10.167.135.9310.167.135.93
4810.167.135.94/3110.167.135.94 – 10.167.135.9510.167.135.95
4910.167.135.96/3110.167.135.96 – 10.167.135.9710.167.135.97
5010.167.135.98/3110.167.135.98 – 10.167.135.9910.167.135.99
5110.167.135.100/3110.167.135.100 – 10.167.135.10110.167.135.101
5210.167.135.102/3110.167.135.102 – 10.167.135.10310.167.135.103
5310.167.135.104/3110.167.135.104 – 10.167.135.10510.167.135.105
5410.167.135.106/3110.167.135.106 – 10.167.135.10710.167.135.107
5510.167.135.108/3110.167.135.108 – 10.167.135.10910.167.135.109
5610.167.135.110/3110.167.135.110 – 10.167.135.11110.167.135.111
5710.167.135.112/3110.167.135.112 – 10.167.135.11310.167.135.113
5810.167.135.114/3110.167.135.114 – 10.167.135.11510.167.135.115
5910.167.135.116/3110.167.135.116 – 10.167.135.11710.167.135.117
6010.167.135.118/3110.167.135.118 – 10.167.135.11910.167.135.119
6110.167.135.120/3110.167.135.120 – 10.167.135.12110.167.135.121
6210.167.135.122/3110.167.135.122 – 10.167.135.12310.167.135.123
6310.167.135.124/3110.167.135.124 – 10.167.135.12510.167.135.125
6410.167.135.126/3110.167.135.126 – 10.167.135.12710.167.135.127
6510.167.135.128/3110.167.135.128 – 10.167.135.12910.167.135.129
6610.167.135.130/3110.167.135.130 – 10.167.135.13110.167.135.131
6710.167.135.132/3110.167.135.132 – 10.167.135.13310.167.135.133
6810.167.135.134/3110.167.135.134 – 10.167.135.13510.167.135.135
6910.167.135.136/3110.167.135.136 – 10.167.135.13710.167.135.137
7010.167.135.138/3110.167.135.138 – 10.167.135.13910.167.135.139
7110.167.135.140/3110.167.135.140 – 10.167.135.14110.167.135.141
7210.167.135.142/3110.167.135.142 – 10.167.135.14310.167.135.143
7310.167.135.144/3110.167.135.144 – 10.167.135.14510.167.135.145
7410.167.135.146/3110.167.135.146 – 10.167.135.14710.167.135.147
7510.167.135.148/3110.167.135.148 – 10.167.135.14910.167.135.149
7610.167.135.150/3110.167.135.150 – 10.167.135.15110.167.135.151
7710.167.135.152/3110.167.135.152 – 10.167.135.15310.167.135.153
7810.167.135.154/3110.167.135.154 – 10.167.135.15510.167.135.155
7910.167.135.156/3110.167.135.156 – 10.167.135.15710.167.135.157
8010.167.135.158/3110.167.135.158 – 10.167.135.15910.167.135.159
8110.167.135.160/3110.167.135.160 – 10.167.135.16110.167.135.161
8210.167.135.162/3110.167.135.162 – 10.167.135.16310.167.135.163
8310.167.135.164/3110.167.135.164 – 10.167.135.16510.167.135.165
8410.167.135.166/3110.167.135.166 – 10.167.135.16710.167.135.167
8510.167.135.168/3110.167.135.168 – 10.167.135.16910.167.135.169
8610.167.135.170/3110.167.135.170 – 10.167.135.17110.167.135.171
8710.167.135.172/3110.167.135.172 – 10.167.135.17310.167.135.173
8810.167.135.174/3110.167.135.174 – 10.167.135.17510.167.135.175
8910.167.135.176/3110.167.135.176 – 10.167.135.17710.167.135.177
9010.167.135.178/3110.167.135.178 – 10.167.135.17910.167.135.179
9110.167.135.180/3110.167.135.180 – 10.167.135.18110.167.135.181
9210.167.135.182/3110.167.135.182 – 10.167.135.18310.167.135.183
9310.167.135.184/3110.167.135.184 – 10.167.135.18510.167.135.185
9410.167.135.186/3110.167.135.186 – 10.167.135.18710.167.135.187
9510.167.135.188/3110.167.135.188 – 10.167.135.18910.167.135.189
9610.167.135.190/3110.167.135.190 – 10.167.135.19110.167.135.191
9710.167.135.192/3110.167.135.192 – 10.167.135.19310.167.135.193
9810.167.135.194/3110.167.135.194 – 10.167.135.19510.167.135.195
9910.167.135.196/3110.167.135.196 – 10.167.135.19710.167.135.197
10010.167.135.198/3110.167.135.198 – 10.167.135.19910.167.135.199
10110.167.135.200/3110.167.135.200 – 10.167.135.20110.167.135.201
10210.167.135.202/3110.167.135.202 – 10.167.135.20310.167.135.203
10310.167.135.204/3110.167.135.204 – 10.167.135.20510.167.135.205
10410.167.135.206/3110.167.135.206 – 10.167.135.20710.167.135.207
10510.167.135.208/3110.167.135.208 – 10.167.135.20910.167.135.209
10610.167.135.210/3110.167.135.210 – 10.167.135.21110.167.135.211
10710.167.135.212/3110.167.135.212 – 10.167.135.21310.167.135.213
10810.167.135.214/3110.167.135.214 – 10.167.135.21510.167.135.215
10910.167.135.216/3110.167.135.216 – 10.167.135.21710.167.135.217
11010.167.135.218/3110.167.135.218 – 10.167.135.21910.167.135.219
11110.167.135.220/3110.167.135.220 – 10.167.135.22110.167.135.221
11210.167.135.222/3110.167.135.222 – 10.167.135.22310.167.135.223
11310.167.135.224/3110.167.135.224 – 10.167.135.22510.167.135.225
11410.167.135.226/3110.167.135.226 – 10.167.135.22710.167.135.227
11510.167.135.228/3110.167.135.228 – 10.167.135.22910.167.135.229
11610.167.135.230/3110.167.135.230 – 10.167.135.23110.167.135.231
11710.167.135.232/3110.167.135.232 – 10.167.135.23310.167.135.233
11810.167.135.234/3110.167.135.234 – 10.167.135.23510.167.135.235
11910.167.135.236/3110.167.135.236 – 10.167.135.23710.167.135.237
12010.167.135.238/3110.167.135.238 – 10.167.135.23910.167.135.239
12110.167.135.240/3110.167.135.240 – 10.167.135.24110.167.135.241
12210.167.135.242/3110.167.135.242 – 10.167.135.24310.167.135.243
12310.167.135.244/3110.167.135.244 – 10.167.135.24510.167.135.245
12410.167.135.246/3110.167.135.246 – 10.167.135.24710.167.135.247
12510.167.135.248/3110.167.135.248 – 10.167.135.24910.167.135.249
12610.167.135.250/3110.167.135.250 – 10.167.135.25110.167.135.251
12710.167.135.252/3110.167.135.252 – 10.167.135.25310.167.135.253
12810.167.135.254/3110.167.135.254 – 10.167.135.25510.167.135.255
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 →