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)10.167.155.0/24
network10.167.155.0/24
broadcast10.167.155.255
first host10.167.155.1
last host10.167.155.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.167.155.0/24
address00001010.10100111.10011011.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.10100111.10011011.00000000
broadcast00001010.10100111.10011011.11111111
green = network part, grey = host part
hex0x0aa79b00
decimal178756352
reverse dns0.155.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:9b00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.167.155.0/3110.167.155.0 – 10.167.155.110.167.155.1
210.167.155.2/3110.167.155.2 – 10.167.155.310.167.155.3
310.167.155.4/3110.167.155.4 – 10.167.155.510.167.155.5
410.167.155.6/3110.167.155.6 – 10.167.155.710.167.155.7
510.167.155.8/3110.167.155.8 – 10.167.155.910.167.155.9
610.167.155.10/3110.167.155.10 – 10.167.155.1110.167.155.11
710.167.155.12/3110.167.155.12 – 10.167.155.1310.167.155.13
810.167.155.14/3110.167.155.14 – 10.167.155.1510.167.155.15
910.167.155.16/3110.167.155.16 – 10.167.155.1710.167.155.17
1010.167.155.18/3110.167.155.18 – 10.167.155.1910.167.155.19
1110.167.155.20/3110.167.155.20 – 10.167.155.2110.167.155.21
1210.167.155.22/3110.167.155.22 – 10.167.155.2310.167.155.23
1310.167.155.24/3110.167.155.24 – 10.167.155.2510.167.155.25
1410.167.155.26/3110.167.155.26 – 10.167.155.2710.167.155.27
1510.167.155.28/3110.167.155.28 – 10.167.155.2910.167.155.29
1610.167.155.30/3110.167.155.30 – 10.167.155.3110.167.155.31
1710.167.155.32/3110.167.155.32 – 10.167.155.3310.167.155.33
1810.167.155.34/3110.167.155.34 – 10.167.155.3510.167.155.35
1910.167.155.36/3110.167.155.36 – 10.167.155.3710.167.155.37
2010.167.155.38/3110.167.155.38 – 10.167.155.3910.167.155.39
2110.167.155.40/3110.167.155.40 – 10.167.155.4110.167.155.41
2210.167.155.42/3110.167.155.42 – 10.167.155.4310.167.155.43
2310.167.155.44/3110.167.155.44 – 10.167.155.4510.167.155.45
2410.167.155.46/3110.167.155.46 – 10.167.155.4710.167.155.47
2510.167.155.48/3110.167.155.48 – 10.167.155.4910.167.155.49
2610.167.155.50/3110.167.155.50 – 10.167.155.5110.167.155.51
2710.167.155.52/3110.167.155.52 – 10.167.155.5310.167.155.53
2810.167.155.54/3110.167.155.54 – 10.167.155.5510.167.155.55
2910.167.155.56/3110.167.155.56 – 10.167.155.5710.167.155.57
3010.167.155.58/3110.167.155.58 – 10.167.155.5910.167.155.59
3110.167.155.60/3110.167.155.60 – 10.167.155.6110.167.155.61
3210.167.155.62/3110.167.155.62 – 10.167.155.6310.167.155.63
3310.167.155.64/3110.167.155.64 – 10.167.155.6510.167.155.65
3410.167.155.66/3110.167.155.66 – 10.167.155.6710.167.155.67
3510.167.155.68/3110.167.155.68 – 10.167.155.6910.167.155.69
3610.167.155.70/3110.167.155.70 – 10.167.155.7110.167.155.71
3710.167.155.72/3110.167.155.72 – 10.167.155.7310.167.155.73
3810.167.155.74/3110.167.155.74 – 10.167.155.7510.167.155.75
3910.167.155.76/3110.167.155.76 – 10.167.155.7710.167.155.77
4010.167.155.78/3110.167.155.78 – 10.167.155.7910.167.155.79
4110.167.155.80/3110.167.155.80 – 10.167.155.8110.167.155.81
4210.167.155.82/3110.167.155.82 – 10.167.155.8310.167.155.83
4310.167.155.84/3110.167.155.84 – 10.167.155.8510.167.155.85
4410.167.155.86/3110.167.155.86 – 10.167.155.8710.167.155.87
4510.167.155.88/3110.167.155.88 – 10.167.155.8910.167.155.89
4610.167.155.90/3110.167.155.90 – 10.167.155.9110.167.155.91
4710.167.155.92/3110.167.155.92 – 10.167.155.9310.167.155.93
4810.167.155.94/3110.167.155.94 – 10.167.155.9510.167.155.95
4910.167.155.96/3110.167.155.96 – 10.167.155.9710.167.155.97
5010.167.155.98/3110.167.155.98 – 10.167.155.9910.167.155.99
5110.167.155.100/3110.167.155.100 – 10.167.155.10110.167.155.101
5210.167.155.102/3110.167.155.102 – 10.167.155.10310.167.155.103
5310.167.155.104/3110.167.155.104 – 10.167.155.10510.167.155.105
5410.167.155.106/3110.167.155.106 – 10.167.155.10710.167.155.107
5510.167.155.108/3110.167.155.108 – 10.167.155.10910.167.155.109
5610.167.155.110/3110.167.155.110 – 10.167.155.11110.167.155.111
5710.167.155.112/3110.167.155.112 – 10.167.155.11310.167.155.113
5810.167.155.114/3110.167.155.114 – 10.167.155.11510.167.155.115
5910.167.155.116/3110.167.155.116 – 10.167.155.11710.167.155.117
6010.167.155.118/3110.167.155.118 – 10.167.155.11910.167.155.119
6110.167.155.120/3110.167.155.120 – 10.167.155.12110.167.155.121
6210.167.155.122/3110.167.155.122 – 10.167.155.12310.167.155.123
6310.167.155.124/3110.167.155.124 – 10.167.155.12510.167.155.125
6410.167.155.126/3110.167.155.126 – 10.167.155.12710.167.155.127
6510.167.155.128/3110.167.155.128 – 10.167.155.12910.167.155.129
6610.167.155.130/3110.167.155.130 – 10.167.155.13110.167.155.131
6710.167.155.132/3110.167.155.132 – 10.167.155.13310.167.155.133
6810.167.155.134/3110.167.155.134 – 10.167.155.13510.167.155.135
6910.167.155.136/3110.167.155.136 – 10.167.155.13710.167.155.137
7010.167.155.138/3110.167.155.138 – 10.167.155.13910.167.155.139
7110.167.155.140/3110.167.155.140 – 10.167.155.14110.167.155.141
7210.167.155.142/3110.167.155.142 – 10.167.155.14310.167.155.143
7310.167.155.144/3110.167.155.144 – 10.167.155.14510.167.155.145
7410.167.155.146/3110.167.155.146 – 10.167.155.14710.167.155.147
7510.167.155.148/3110.167.155.148 – 10.167.155.14910.167.155.149
7610.167.155.150/3110.167.155.150 – 10.167.155.15110.167.155.151
7710.167.155.152/3110.167.155.152 – 10.167.155.15310.167.155.153
7810.167.155.154/3110.167.155.154 – 10.167.155.15510.167.155.155
7910.167.155.156/3110.167.155.156 – 10.167.155.15710.167.155.157
8010.167.155.158/3110.167.155.158 – 10.167.155.15910.167.155.159
8110.167.155.160/3110.167.155.160 – 10.167.155.16110.167.155.161
8210.167.155.162/3110.167.155.162 – 10.167.155.16310.167.155.163
8310.167.155.164/3110.167.155.164 – 10.167.155.16510.167.155.165
8410.167.155.166/3110.167.155.166 – 10.167.155.16710.167.155.167
8510.167.155.168/3110.167.155.168 – 10.167.155.16910.167.155.169
8610.167.155.170/3110.167.155.170 – 10.167.155.17110.167.155.171
8710.167.155.172/3110.167.155.172 – 10.167.155.17310.167.155.173
8810.167.155.174/3110.167.155.174 – 10.167.155.17510.167.155.175
8910.167.155.176/3110.167.155.176 – 10.167.155.17710.167.155.177
9010.167.155.178/3110.167.155.178 – 10.167.155.17910.167.155.179
9110.167.155.180/3110.167.155.180 – 10.167.155.18110.167.155.181
9210.167.155.182/3110.167.155.182 – 10.167.155.18310.167.155.183
9310.167.155.184/3110.167.155.184 – 10.167.155.18510.167.155.185
9410.167.155.186/3110.167.155.186 – 10.167.155.18710.167.155.187
9510.167.155.188/3110.167.155.188 – 10.167.155.18910.167.155.189
9610.167.155.190/3110.167.155.190 – 10.167.155.19110.167.155.191
9710.167.155.192/3110.167.155.192 – 10.167.155.19310.167.155.193
9810.167.155.194/3110.167.155.194 – 10.167.155.19510.167.155.195
9910.167.155.196/3110.167.155.196 – 10.167.155.19710.167.155.197
10010.167.155.198/3110.167.155.198 – 10.167.155.19910.167.155.199
10110.167.155.200/3110.167.155.200 – 10.167.155.20110.167.155.201
10210.167.155.202/3110.167.155.202 – 10.167.155.20310.167.155.203
10310.167.155.204/3110.167.155.204 – 10.167.155.20510.167.155.205
10410.167.155.206/3110.167.155.206 – 10.167.155.20710.167.155.207
10510.167.155.208/3110.167.155.208 – 10.167.155.20910.167.155.209
10610.167.155.210/3110.167.155.210 – 10.167.155.21110.167.155.211
10710.167.155.212/3110.167.155.212 – 10.167.155.21310.167.155.213
10810.167.155.214/3110.167.155.214 – 10.167.155.21510.167.155.215
10910.167.155.216/3110.167.155.216 – 10.167.155.21710.167.155.217
11010.167.155.218/3110.167.155.218 – 10.167.155.21910.167.155.219
11110.167.155.220/3110.167.155.220 – 10.167.155.22110.167.155.221
11210.167.155.222/3110.167.155.222 – 10.167.155.22310.167.155.223
11310.167.155.224/3110.167.155.224 – 10.167.155.22510.167.155.225
11410.167.155.226/3110.167.155.226 – 10.167.155.22710.167.155.227
11510.167.155.228/3110.167.155.228 – 10.167.155.22910.167.155.229
11610.167.155.230/3110.167.155.230 – 10.167.155.23110.167.155.231
11710.167.155.232/3110.167.155.232 – 10.167.155.23310.167.155.233
11810.167.155.234/3110.167.155.234 – 10.167.155.23510.167.155.235
11910.167.155.236/3110.167.155.236 – 10.167.155.23710.167.155.237
12010.167.155.238/3110.167.155.238 – 10.167.155.23910.167.155.239
12110.167.155.240/3110.167.155.240 – 10.167.155.24110.167.155.241
12210.167.155.242/3110.167.155.242 – 10.167.155.24310.167.155.243
12310.167.155.244/3110.167.155.244 – 10.167.155.24510.167.155.245
12410.167.155.246/3110.167.155.246 – 10.167.155.24710.167.155.247
12510.167.155.248/3110.167.155.248 – 10.167.155.24910.167.155.249
12610.167.155.250/3110.167.155.250 – 10.167.155.25110.167.155.251
12710.167.155.252/3110.167.155.252 – 10.167.155.25310.167.155.253
12810.167.155.254/3110.167.155.254 – 10.167.155.25510.167.155.255
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 →