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)10.167.170.0/24
network10.167.170.0/24
broadcast10.167.170.255
first host10.167.170.1
last host10.167.170.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.167.170.0/24
address00001010.10100111.10101010.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.10100111.10101010.00000000
broadcast00001010.10100111.10101010.11111111
green = network part, grey = host part
hex0x0aa7aa00
decimal178760192
reverse dns0.170.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:aa00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.167.170.0/3110.167.170.0 – 10.167.170.110.167.170.1
210.167.170.2/3110.167.170.2 – 10.167.170.310.167.170.3
310.167.170.4/3110.167.170.4 – 10.167.170.510.167.170.5
410.167.170.6/3110.167.170.6 – 10.167.170.710.167.170.7
510.167.170.8/3110.167.170.8 – 10.167.170.910.167.170.9
610.167.170.10/3110.167.170.10 – 10.167.170.1110.167.170.11
710.167.170.12/3110.167.170.12 – 10.167.170.1310.167.170.13
810.167.170.14/3110.167.170.14 – 10.167.170.1510.167.170.15
910.167.170.16/3110.167.170.16 – 10.167.170.1710.167.170.17
1010.167.170.18/3110.167.170.18 – 10.167.170.1910.167.170.19
1110.167.170.20/3110.167.170.20 – 10.167.170.2110.167.170.21
1210.167.170.22/3110.167.170.22 – 10.167.170.2310.167.170.23
1310.167.170.24/3110.167.170.24 – 10.167.170.2510.167.170.25
1410.167.170.26/3110.167.170.26 – 10.167.170.2710.167.170.27
1510.167.170.28/3110.167.170.28 – 10.167.170.2910.167.170.29
1610.167.170.30/3110.167.170.30 – 10.167.170.3110.167.170.31
1710.167.170.32/3110.167.170.32 – 10.167.170.3310.167.170.33
1810.167.170.34/3110.167.170.34 – 10.167.170.3510.167.170.35
1910.167.170.36/3110.167.170.36 – 10.167.170.3710.167.170.37
2010.167.170.38/3110.167.170.38 – 10.167.170.3910.167.170.39
2110.167.170.40/3110.167.170.40 – 10.167.170.4110.167.170.41
2210.167.170.42/3110.167.170.42 – 10.167.170.4310.167.170.43
2310.167.170.44/3110.167.170.44 – 10.167.170.4510.167.170.45
2410.167.170.46/3110.167.170.46 – 10.167.170.4710.167.170.47
2510.167.170.48/3110.167.170.48 – 10.167.170.4910.167.170.49
2610.167.170.50/3110.167.170.50 – 10.167.170.5110.167.170.51
2710.167.170.52/3110.167.170.52 – 10.167.170.5310.167.170.53
2810.167.170.54/3110.167.170.54 – 10.167.170.5510.167.170.55
2910.167.170.56/3110.167.170.56 – 10.167.170.5710.167.170.57
3010.167.170.58/3110.167.170.58 – 10.167.170.5910.167.170.59
3110.167.170.60/3110.167.170.60 – 10.167.170.6110.167.170.61
3210.167.170.62/3110.167.170.62 – 10.167.170.6310.167.170.63
3310.167.170.64/3110.167.170.64 – 10.167.170.6510.167.170.65
3410.167.170.66/3110.167.170.66 – 10.167.170.6710.167.170.67
3510.167.170.68/3110.167.170.68 – 10.167.170.6910.167.170.69
3610.167.170.70/3110.167.170.70 – 10.167.170.7110.167.170.71
3710.167.170.72/3110.167.170.72 – 10.167.170.7310.167.170.73
3810.167.170.74/3110.167.170.74 – 10.167.170.7510.167.170.75
3910.167.170.76/3110.167.170.76 – 10.167.170.7710.167.170.77
4010.167.170.78/3110.167.170.78 – 10.167.170.7910.167.170.79
4110.167.170.80/3110.167.170.80 – 10.167.170.8110.167.170.81
4210.167.170.82/3110.167.170.82 – 10.167.170.8310.167.170.83
4310.167.170.84/3110.167.170.84 – 10.167.170.8510.167.170.85
4410.167.170.86/3110.167.170.86 – 10.167.170.8710.167.170.87
4510.167.170.88/3110.167.170.88 – 10.167.170.8910.167.170.89
4610.167.170.90/3110.167.170.90 – 10.167.170.9110.167.170.91
4710.167.170.92/3110.167.170.92 – 10.167.170.9310.167.170.93
4810.167.170.94/3110.167.170.94 – 10.167.170.9510.167.170.95
4910.167.170.96/3110.167.170.96 – 10.167.170.9710.167.170.97
5010.167.170.98/3110.167.170.98 – 10.167.170.9910.167.170.99
5110.167.170.100/3110.167.170.100 – 10.167.170.10110.167.170.101
5210.167.170.102/3110.167.170.102 – 10.167.170.10310.167.170.103
5310.167.170.104/3110.167.170.104 – 10.167.170.10510.167.170.105
5410.167.170.106/3110.167.170.106 – 10.167.170.10710.167.170.107
5510.167.170.108/3110.167.170.108 – 10.167.170.10910.167.170.109
5610.167.170.110/3110.167.170.110 – 10.167.170.11110.167.170.111
5710.167.170.112/3110.167.170.112 – 10.167.170.11310.167.170.113
5810.167.170.114/3110.167.170.114 – 10.167.170.11510.167.170.115
5910.167.170.116/3110.167.170.116 – 10.167.170.11710.167.170.117
6010.167.170.118/3110.167.170.118 – 10.167.170.11910.167.170.119
6110.167.170.120/3110.167.170.120 – 10.167.170.12110.167.170.121
6210.167.170.122/3110.167.170.122 – 10.167.170.12310.167.170.123
6310.167.170.124/3110.167.170.124 – 10.167.170.12510.167.170.125
6410.167.170.126/3110.167.170.126 – 10.167.170.12710.167.170.127
6510.167.170.128/3110.167.170.128 – 10.167.170.12910.167.170.129
6610.167.170.130/3110.167.170.130 – 10.167.170.13110.167.170.131
6710.167.170.132/3110.167.170.132 – 10.167.170.13310.167.170.133
6810.167.170.134/3110.167.170.134 – 10.167.170.13510.167.170.135
6910.167.170.136/3110.167.170.136 – 10.167.170.13710.167.170.137
7010.167.170.138/3110.167.170.138 – 10.167.170.13910.167.170.139
7110.167.170.140/3110.167.170.140 – 10.167.170.14110.167.170.141
7210.167.170.142/3110.167.170.142 – 10.167.170.14310.167.170.143
7310.167.170.144/3110.167.170.144 – 10.167.170.14510.167.170.145
7410.167.170.146/3110.167.170.146 – 10.167.170.14710.167.170.147
7510.167.170.148/3110.167.170.148 – 10.167.170.14910.167.170.149
7610.167.170.150/3110.167.170.150 – 10.167.170.15110.167.170.151
7710.167.170.152/3110.167.170.152 – 10.167.170.15310.167.170.153
7810.167.170.154/3110.167.170.154 – 10.167.170.15510.167.170.155
7910.167.170.156/3110.167.170.156 – 10.167.170.15710.167.170.157
8010.167.170.158/3110.167.170.158 – 10.167.170.15910.167.170.159
8110.167.170.160/3110.167.170.160 – 10.167.170.16110.167.170.161
8210.167.170.162/3110.167.170.162 – 10.167.170.16310.167.170.163
8310.167.170.164/3110.167.170.164 – 10.167.170.16510.167.170.165
8410.167.170.166/3110.167.170.166 – 10.167.170.16710.167.170.167
8510.167.170.168/3110.167.170.168 – 10.167.170.16910.167.170.169
8610.167.170.170/3110.167.170.170 – 10.167.170.17110.167.170.171
8710.167.170.172/3110.167.170.172 – 10.167.170.17310.167.170.173
8810.167.170.174/3110.167.170.174 – 10.167.170.17510.167.170.175
8910.167.170.176/3110.167.170.176 – 10.167.170.17710.167.170.177
9010.167.170.178/3110.167.170.178 – 10.167.170.17910.167.170.179
9110.167.170.180/3110.167.170.180 – 10.167.170.18110.167.170.181
9210.167.170.182/3110.167.170.182 – 10.167.170.18310.167.170.183
9310.167.170.184/3110.167.170.184 – 10.167.170.18510.167.170.185
9410.167.170.186/3110.167.170.186 – 10.167.170.18710.167.170.187
9510.167.170.188/3110.167.170.188 – 10.167.170.18910.167.170.189
9610.167.170.190/3110.167.170.190 – 10.167.170.19110.167.170.191
9710.167.170.192/3110.167.170.192 – 10.167.170.19310.167.170.193
9810.167.170.194/3110.167.170.194 – 10.167.170.19510.167.170.195
9910.167.170.196/3110.167.170.196 – 10.167.170.19710.167.170.197
10010.167.170.198/3110.167.170.198 – 10.167.170.19910.167.170.199
10110.167.170.200/3110.167.170.200 – 10.167.170.20110.167.170.201
10210.167.170.202/3110.167.170.202 – 10.167.170.20310.167.170.203
10310.167.170.204/3110.167.170.204 – 10.167.170.20510.167.170.205
10410.167.170.206/3110.167.170.206 – 10.167.170.20710.167.170.207
10510.167.170.208/3110.167.170.208 – 10.167.170.20910.167.170.209
10610.167.170.210/3110.167.170.210 – 10.167.170.21110.167.170.211
10710.167.170.212/3110.167.170.212 – 10.167.170.21310.167.170.213
10810.167.170.214/3110.167.170.214 – 10.167.170.21510.167.170.215
10910.167.170.216/3110.167.170.216 – 10.167.170.21710.167.170.217
11010.167.170.218/3110.167.170.218 – 10.167.170.21910.167.170.219
11110.167.170.220/3110.167.170.220 – 10.167.170.22110.167.170.221
11210.167.170.222/3110.167.170.222 – 10.167.170.22310.167.170.223
11310.167.170.224/3110.167.170.224 – 10.167.170.22510.167.170.225
11410.167.170.226/3110.167.170.226 – 10.167.170.22710.167.170.227
11510.167.170.228/3110.167.170.228 – 10.167.170.22910.167.170.229
11610.167.170.230/3110.167.170.230 – 10.167.170.23110.167.170.231
11710.167.170.232/3110.167.170.232 – 10.167.170.23310.167.170.233
11810.167.170.234/3110.167.170.234 – 10.167.170.23510.167.170.235
11910.167.170.236/3110.167.170.236 – 10.167.170.23710.167.170.237
12010.167.170.238/3110.167.170.238 – 10.167.170.23910.167.170.239
12110.167.170.240/3110.167.170.240 – 10.167.170.24110.167.170.241
12210.167.170.242/3110.167.170.242 – 10.167.170.24310.167.170.243
12310.167.170.244/3110.167.170.244 – 10.167.170.24510.167.170.245
12410.167.170.246/3110.167.170.246 – 10.167.170.24710.167.170.247
12510.167.170.248/3110.167.170.248 – 10.167.170.24910.167.170.249
12610.167.170.250/3110.167.170.250 – 10.167.170.25110.167.170.251
12710.167.170.252/3110.167.170.252 – 10.167.170.25310.167.170.253
12810.167.170.254/3110.167.170.254 – 10.167.170.25510.167.170.255
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 →