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)10.232.151.0/24
network10.232.151.0/24
broadcast10.232.151.255
first host10.232.151.1
last host10.232.151.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.232.151.0/24
address00001010.11101000.10010111.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.11101000.10010111.00000000
broadcast00001010.11101000.10010111.11111111
green = network part, grey = host part
hex0x0ae89700
decimal183015168
reverse dns0.151.232.10.in-addr.arpa
ipv4-mapped::ffff:ae8:9700

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.232.151.0/3110.232.151.0 – 10.232.151.110.232.151.1
210.232.151.2/3110.232.151.2 – 10.232.151.310.232.151.3
310.232.151.4/3110.232.151.4 – 10.232.151.510.232.151.5
410.232.151.6/3110.232.151.6 – 10.232.151.710.232.151.7
510.232.151.8/3110.232.151.8 – 10.232.151.910.232.151.9
610.232.151.10/3110.232.151.10 – 10.232.151.1110.232.151.11
710.232.151.12/3110.232.151.12 – 10.232.151.1310.232.151.13
810.232.151.14/3110.232.151.14 – 10.232.151.1510.232.151.15
910.232.151.16/3110.232.151.16 – 10.232.151.1710.232.151.17
1010.232.151.18/3110.232.151.18 – 10.232.151.1910.232.151.19
1110.232.151.20/3110.232.151.20 – 10.232.151.2110.232.151.21
1210.232.151.22/3110.232.151.22 – 10.232.151.2310.232.151.23
1310.232.151.24/3110.232.151.24 – 10.232.151.2510.232.151.25
1410.232.151.26/3110.232.151.26 – 10.232.151.2710.232.151.27
1510.232.151.28/3110.232.151.28 – 10.232.151.2910.232.151.29
1610.232.151.30/3110.232.151.30 – 10.232.151.3110.232.151.31
1710.232.151.32/3110.232.151.32 – 10.232.151.3310.232.151.33
1810.232.151.34/3110.232.151.34 – 10.232.151.3510.232.151.35
1910.232.151.36/3110.232.151.36 – 10.232.151.3710.232.151.37
2010.232.151.38/3110.232.151.38 – 10.232.151.3910.232.151.39
2110.232.151.40/3110.232.151.40 – 10.232.151.4110.232.151.41
2210.232.151.42/3110.232.151.42 – 10.232.151.4310.232.151.43
2310.232.151.44/3110.232.151.44 – 10.232.151.4510.232.151.45
2410.232.151.46/3110.232.151.46 – 10.232.151.4710.232.151.47
2510.232.151.48/3110.232.151.48 – 10.232.151.4910.232.151.49
2610.232.151.50/3110.232.151.50 – 10.232.151.5110.232.151.51
2710.232.151.52/3110.232.151.52 – 10.232.151.5310.232.151.53
2810.232.151.54/3110.232.151.54 – 10.232.151.5510.232.151.55
2910.232.151.56/3110.232.151.56 – 10.232.151.5710.232.151.57
3010.232.151.58/3110.232.151.58 – 10.232.151.5910.232.151.59
3110.232.151.60/3110.232.151.60 – 10.232.151.6110.232.151.61
3210.232.151.62/3110.232.151.62 – 10.232.151.6310.232.151.63
3310.232.151.64/3110.232.151.64 – 10.232.151.6510.232.151.65
3410.232.151.66/3110.232.151.66 – 10.232.151.6710.232.151.67
3510.232.151.68/3110.232.151.68 – 10.232.151.6910.232.151.69
3610.232.151.70/3110.232.151.70 – 10.232.151.7110.232.151.71
3710.232.151.72/3110.232.151.72 – 10.232.151.7310.232.151.73
3810.232.151.74/3110.232.151.74 – 10.232.151.7510.232.151.75
3910.232.151.76/3110.232.151.76 – 10.232.151.7710.232.151.77
4010.232.151.78/3110.232.151.78 – 10.232.151.7910.232.151.79
4110.232.151.80/3110.232.151.80 – 10.232.151.8110.232.151.81
4210.232.151.82/3110.232.151.82 – 10.232.151.8310.232.151.83
4310.232.151.84/3110.232.151.84 – 10.232.151.8510.232.151.85
4410.232.151.86/3110.232.151.86 – 10.232.151.8710.232.151.87
4510.232.151.88/3110.232.151.88 – 10.232.151.8910.232.151.89
4610.232.151.90/3110.232.151.90 – 10.232.151.9110.232.151.91
4710.232.151.92/3110.232.151.92 – 10.232.151.9310.232.151.93
4810.232.151.94/3110.232.151.94 – 10.232.151.9510.232.151.95
4910.232.151.96/3110.232.151.96 – 10.232.151.9710.232.151.97
5010.232.151.98/3110.232.151.98 – 10.232.151.9910.232.151.99
5110.232.151.100/3110.232.151.100 – 10.232.151.10110.232.151.101
5210.232.151.102/3110.232.151.102 – 10.232.151.10310.232.151.103
5310.232.151.104/3110.232.151.104 – 10.232.151.10510.232.151.105
5410.232.151.106/3110.232.151.106 – 10.232.151.10710.232.151.107
5510.232.151.108/3110.232.151.108 – 10.232.151.10910.232.151.109
5610.232.151.110/3110.232.151.110 – 10.232.151.11110.232.151.111
5710.232.151.112/3110.232.151.112 – 10.232.151.11310.232.151.113
5810.232.151.114/3110.232.151.114 – 10.232.151.11510.232.151.115
5910.232.151.116/3110.232.151.116 – 10.232.151.11710.232.151.117
6010.232.151.118/3110.232.151.118 – 10.232.151.11910.232.151.119
6110.232.151.120/3110.232.151.120 – 10.232.151.12110.232.151.121
6210.232.151.122/3110.232.151.122 – 10.232.151.12310.232.151.123
6310.232.151.124/3110.232.151.124 – 10.232.151.12510.232.151.125
6410.232.151.126/3110.232.151.126 – 10.232.151.12710.232.151.127
6510.232.151.128/3110.232.151.128 – 10.232.151.12910.232.151.129
6610.232.151.130/3110.232.151.130 – 10.232.151.13110.232.151.131
6710.232.151.132/3110.232.151.132 – 10.232.151.13310.232.151.133
6810.232.151.134/3110.232.151.134 – 10.232.151.13510.232.151.135
6910.232.151.136/3110.232.151.136 – 10.232.151.13710.232.151.137
7010.232.151.138/3110.232.151.138 – 10.232.151.13910.232.151.139
7110.232.151.140/3110.232.151.140 – 10.232.151.14110.232.151.141
7210.232.151.142/3110.232.151.142 – 10.232.151.14310.232.151.143
7310.232.151.144/3110.232.151.144 – 10.232.151.14510.232.151.145
7410.232.151.146/3110.232.151.146 – 10.232.151.14710.232.151.147
7510.232.151.148/3110.232.151.148 – 10.232.151.14910.232.151.149
7610.232.151.150/3110.232.151.150 – 10.232.151.15110.232.151.151
7710.232.151.152/3110.232.151.152 – 10.232.151.15310.232.151.153
7810.232.151.154/3110.232.151.154 – 10.232.151.15510.232.151.155
7910.232.151.156/3110.232.151.156 – 10.232.151.15710.232.151.157
8010.232.151.158/3110.232.151.158 – 10.232.151.15910.232.151.159
8110.232.151.160/3110.232.151.160 – 10.232.151.16110.232.151.161
8210.232.151.162/3110.232.151.162 – 10.232.151.16310.232.151.163
8310.232.151.164/3110.232.151.164 – 10.232.151.16510.232.151.165
8410.232.151.166/3110.232.151.166 – 10.232.151.16710.232.151.167
8510.232.151.168/3110.232.151.168 – 10.232.151.16910.232.151.169
8610.232.151.170/3110.232.151.170 – 10.232.151.17110.232.151.171
8710.232.151.172/3110.232.151.172 – 10.232.151.17310.232.151.173
8810.232.151.174/3110.232.151.174 – 10.232.151.17510.232.151.175
8910.232.151.176/3110.232.151.176 – 10.232.151.17710.232.151.177
9010.232.151.178/3110.232.151.178 – 10.232.151.17910.232.151.179
9110.232.151.180/3110.232.151.180 – 10.232.151.18110.232.151.181
9210.232.151.182/3110.232.151.182 – 10.232.151.18310.232.151.183
9310.232.151.184/3110.232.151.184 – 10.232.151.18510.232.151.185
9410.232.151.186/3110.232.151.186 – 10.232.151.18710.232.151.187
9510.232.151.188/3110.232.151.188 – 10.232.151.18910.232.151.189
9610.232.151.190/3110.232.151.190 – 10.232.151.19110.232.151.191
9710.232.151.192/3110.232.151.192 – 10.232.151.19310.232.151.193
9810.232.151.194/3110.232.151.194 – 10.232.151.19510.232.151.195
9910.232.151.196/3110.232.151.196 – 10.232.151.19710.232.151.197
10010.232.151.198/3110.232.151.198 – 10.232.151.19910.232.151.199
10110.232.151.200/3110.232.151.200 – 10.232.151.20110.232.151.201
10210.232.151.202/3110.232.151.202 – 10.232.151.20310.232.151.203
10310.232.151.204/3110.232.151.204 – 10.232.151.20510.232.151.205
10410.232.151.206/3110.232.151.206 – 10.232.151.20710.232.151.207
10510.232.151.208/3110.232.151.208 – 10.232.151.20910.232.151.209
10610.232.151.210/3110.232.151.210 – 10.232.151.21110.232.151.211
10710.232.151.212/3110.232.151.212 – 10.232.151.21310.232.151.213
10810.232.151.214/3110.232.151.214 – 10.232.151.21510.232.151.215
10910.232.151.216/3110.232.151.216 – 10.232.151.21710.232.151.217
11010.232.151.218/3110.232.151.218 – 10.232.151.21910.232.151.219
11110.232.151.220/3110.232.151.220 – 10.232.151.22110.232.151.221
11210.232.151.222/3110.232.151.222 – 10.232.151.22310.232.151.223
11310.232.151.224/3110.232.151.224 – 10.232.151.22510.232.151.225
11410.232.151.226/3110.232.151.226 – 10.232.151.22710.232.151.227
11510.232.151.228/3110.232.151.228 – 10.232.151.22910.232.151.229
11610.232.151.230/3110.232.151.230 – 10.232.151.23110.232.151.231
11710.232.151.232/3110.232.151.232 – 10.232.151.23310.232.151.233
11810.232.151.234/3110.232.151.234 – 10.232.151.23510.232.151.235
11910.232.151.236/3110.232.151.236 – 10.232.151.23710.232.151.237
12010.232.151.238/3110.232.151.238 – 10.232.151.23910.232.151.239
12110.232.151.240/3110.232.151.240 – 10.232.151.24110.232.151.241
12210.232.151.242/3110.232.151.242 – 10.232.151.24310.232.151.243
12310.232.151.244/3110.232.151.244 – 10.232.151.24510.232.151.245
12410.232.151.246/3110.232.151.246 – 10.232.151.24710.232.151.247
12510.232.151.248/3110.232.151.248 – 10.232.151.24910.232.151.249
12610.232.151.250/3110.232.151.250 – 10.232.151.25110.232.151.251
12710.232.151.252/3110.232.151.252 – 10.232.151.25310.232.151.253
12810.232.151.254/3110.232.151.254 – 10.232.151.25510.232.151.255
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 →