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)10.9.232.0/24
network10.9.232.0/24
broadcast10.9.232.255
first host10.9.232.1
last host10.9.232.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.9.232.0/24
address00001010.00001001.11101000.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.00001001.11101000.00000000
broadcast00001010.00001001.11101000.11111111
green = network part, grey = host part
hex0x0a09e800
decimal168421376
reverse dns0.232.9.10.in-addr.arpa
ipv4-mapped::ffff:a09:e800

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.9.232.0/3110.9.232.0 – 10.9.232.110.9.232.1
210.9.232.2/3110.9.232.2 – 10.9.232.310.9.232.3
310.9.232.4/3110.9.232.4 – 10.9.232.510.9.232.5
410.9.232.6/3110.9.232.6 – 10.9.232.710.9.232.7
510.9.232.8/3110.9.232.8 – 10.9.232.910.9.232.9
610.9.232.10/3110.9.232.10 – 10.9.232.1110.9.232.11
710.9.232.12/3110.9.232.12 – 10.9.232.1310.9.232.13
810.9.232.14/3110.9.232.14 – 10.9.232.1510.9.232.15
910.9.232.16/3110.9.232.16 – 10.9.232.1710.9.232.17
1010.9.232.18/3110.9.232.18 – 10.9.232.1910.9.232.19
1110.9.232.20/3110.9.232.20 – 10.9.232.2110.9.232.21
1210.9.232.22/3110.9.232.22 – 10.9.232.2310.9.232.23
1310.9.232.24/3110.9.232.24 – 10.9.232.2510.9.232.25
1410.9.232.26/3110.9.232.26 – 10.9.232.2710.9.232.27
1510.9.232.28/3110.9.232.28 – 10.9.232.2910.9.232.29
1610.9.232.30/3110.9.232.30 – 10.9.232.3110.9.232.31
1710.9.232.32/3110.9.232.32 – 10.9.232.3310.9.232.33
1810.9.232.34/3110.9.232.34 – 10.9.232.3510.9.232.35
1910.9.232.36/3110.9.232.36 – 10.9.232.3710.9.232.37
2010.9.232.38/3110.9.232.38 – 10.9.232.3910.9.232.39
2110.9.232.40/3110.9.232.40 – 10.9.232.4110.9.232.41
2210.9.232.42/3110.9.232.42 – 10.9.232.4310.9.232.43
2310.9.232.44/3110.9.232.44 – 10.9.232.4510.9.232.45
2410.9.232.46/3110.9.232.46 – 10.9.232.4710.9.232.47
2510.9.232.48/3110.9.232.48 – 10.9.232.4910.9.232.49
2610.9.232.50/3110.9.232.50 – 10.9.232.5110.9.232.51
2710.9.232.52/3110.9.232.52 – 10.9.232.5310.9.232.53
2810.9.232.54/3110.9.232.54 – 10.9.232.5510.9.232.55
2910.9.232.56/3110.9.232.56 – 10.9.232.5710.9.232.57
3010.9.232.58/3110.9.232.58 – 10.9.232.5910.9.232.59
3110.9.232.60/3110.9.232.60 – 10.9.232.6110.9.232.61
3210.9.232.62/3110.9.232.62 – 10.9.232.6310.9.232.63
3310.9.232.64/3110.9.232.64 – 10.9.232.6510.9.232.65
3410.9.232.66/3110.9.232.66 – 10.9.232.6710.9.232.67
3510.9.232.68/3110.9.232.68 – 10.9.232.6910.9.232.69
3610.9.232.70/3110.9.232.70 – 10.9.232.7110.9.232.71
3710.9.232.72/3110.9.232.72 – 10.9.232.7310.9.232.73
3810.9.232.74/3110.9.232.74 – 10.9.232.7510.9.232.75
3910.9.232.76/3110.9.232.76 – 10.9.232.7710.9.232.77
4010.9.232.78/3110.9.232.78 – 10.9.232.7910.9.232.79
4110.9.232.80/3110.9.232.80 – 10.9.232.8110.9.232.81
4210.9.232.82/3110.9.232.82 – 10.9.232.8310.9.232.83
4310.9.232.84/3110.9.232.84 – 10.9.232.8510.9.232.85
4410.9.232.86/3110.9.232.86 – 10.9.232.8710.9.232.87
4510.9.232.88/3110.9.232.88 – 10.9.232.8910.9.232.89
4610.9.232.90/3110.9.232.90 – 10.9.232.9110.9.232.91
4710.9.232.92/3110.9.232.92 – 10.9.232.9310.9.232.93
4810.9.232.94/3110.9.232.94 – 10.9.232.9510.9.232.95
4910.9.232.96/3110.9.232.96 – 10.9.232.9710.9.232.97
5010.9.232.98/3110.9.232.98 – 10.9.232.9910.9.232.99
5110.9.232.100/3110.9.232.100 – 10.9.232.10110.9.232.101
5210.9.232.102/3110.9.232.102 – 10.9.232.10310.9.232.103
5310.9.232.104/3110.9.232.104 – 10.9.232.10510.9.232.105
5410.9.232.106/3110.9.232.106 – 10.9.232.10710.9.232.107
5510.9.232.108/3110.9.232.108 – 10.9.232.10910.9.232.109
5610.9.232.110/3110.9.232.110 – 10.9.232.11110.9.232.111
5710.9.232.112/3110.9.232.112 – 10.9.232.11310.9.232.113
5810.9.232.114/3110.9.232.114 – 10.9.232.11510.9.232.115
5910.9.232.116/3110.9.232.116 – 10.9.232.11710.9.232.117
6010.9.232.118/3110.9.232.118 – 10.9.232.11910.9.232.119
6110.9.232.120/3110.9.232.120 – 10.9.232.12110.9.232.121
6210.9.232.122/3110.9.232.122 – 10.9.232.12310.9.232.123
6310.9.232.124/3110.9.232.124 – 10.9.232.12510.9.232.125
6410.9.232.126/3110.9.232.126 – 10.9.232.12710.9.232.127
6510.9.232.128/3110.9.232.128 – 10.9.232.12910.9.232.129
6610.9.232.130/3110.9.232.130 – 10.9.232.13110.9.232.131
6710.9.232.132/3110.9.232.132 – 10.9.232.13310.9.232.133
6810.9.232.134/3110.9.232.134 – 10.9.232.13510.9.232.135
6910.9.232.136/3110.9.232.136 – 10.9.232.13710.9.232.137
7010.9.232.138/3110.9.232.138 – 10.9.232.13910.9.232.139
7110.9.232.140/3110.9.232.140 – 10.9.232.14110.9.232.141
7210.9.232.142/3110.9.232.142 – 10.9.232.14310.9.232.143
7310.9.232.144/3110.9.232.144 – 10.9.232.14510.9.232.145
7410.9.232.146/3110.9.232.146 – 10.9.232.14710.9.232.147
7510.9.232.148/3110.9.232.148 – 10.9.232.14910.9.232.149
7610.9.232.150/3110.9.232.150 – 10.9.232.15110.9.232.151
7710.9.232.152/3110.9.232.152 – 10.9.232.15310.9.232.153
7810.9.232.154/3110.9.232.154 – 10.9.232.15510.9.232.155
7910.9.232.156/3110.9.232.156 – 10.9.232.15710.9.232.157
8010.9.232.158/3110.9.232.158 – 10.9.232.15910.9.232.159
8110.9.232.160/3110.9.232.160 – 10.9.232.16110.9.232.161
8210.9.232.162/3110.9.232.162 – 10.9.232.16310.9.232.163
8310.9.232.164/3110.9.232.164 – 10.9.232.16510.9.232.165
8410.9.232.166/3110.9.232.166 – 10.9.232.16710.9.232.167
8510.9.232.168/3110.9.232.168 – 10.9.232.16910.9.232.169
8610.9.232.170/3110.9.232.170 – 10.9.232.17110.9.232.171
8710.9.232.172/3110.9.232.172 – 10.9.232.17310.9.232.173
8810.9.232.174/3110.9.232.174 – 10.9.232.17510.9.232.175
8910.9.232.176/3110.9.232.176 – 10.9.232.17710.9.232.177
9010.9.232.178/3110.9.232.178 – 10.9.232.17910.9.232.179
9110.9.232.180/3110.9.232.180 – 10.9.232.18110.9.232.181
9210.9.232.182/3110.9.232.182 – 10.9.232.18310.9.232.183
9310.9.232.184/3110.9.232.184 – 10.9.232.18510.9.232.185
9410.9.232.186/3110.9.232.186 – 10.9.232.18710.9.232.187
9510.9.232.188/3110.9.232.188 – 10.9.232.18910.9.232.189
9610.9.232.190/3110.9.232.190 – 10.9.232.19110.9.232.191
9710.9.232.192/3110.9.232.192 – 10.9.232.19310.9.232.193
9810.9.232.194/3110.9.232.194 – 10.9.232.19510.9.232.195
9910.9.232.196/3110.9.232.196 – 10.9.232.19710.9.232.197
10010.9.232.198/3110.9.232.198 – 10.9.232.19910.9.232.199
10110.9.232.200/3110.9.232.200 – 10.9.232.20110.9.232.201
10210.9.232.202/3110.9.232.202 – 10.9.232.20310.9.232.203
10310.9.232.204/3110.9.232.204 – 10.9.232.20510.9.232.205
10410.9.232.206/3110.9.232.206 – 10.9.232.20710.9.232.207
10510.9.232.208/3110.9.232.208 – 10.9.232.20910.9.232.209
10610.9.232.210/3110.9.232.210 – 10.9.232.21110.9.232.211
10710.9.232.212/3110.9.232.212 – 10.9.232.21310.9.232.213
10810.9.232.214/3110.9.232.214 – 10.9.232.21510.9.232.215
10910.9.232.216/3110.9.232.216 – 10.9.232.21710.9.232.217
11010.9.232.218/3110.9.232.218 – 10.9.232.21910.9.232.219
11110.9.232.220/3110.9.232.220 – 10.9.232.22110.9.232.221
11210.9.232.222/3110.9.232.222 – 10.9.232.22310.9.232.223
11310.9.232.224/3110.9.232.224 – 10.9.232.22510.9.232.225
11410.9.232.226/3110.9.232.226 – 10.9.232.22710.9.232.227
11510.9.232.228/3110.9.232.228 – 10.9.232.22910.9.232.229
11610.9.232.230/3110.9.232.230 – 10.9.232.23110.9.232.231
11710.9.232.232/3110.9.232.232 – 10.9.232.23310.9.232.233
11810.9.232.234/3110.9.232.234 – 10.9.232.23510.9.232.235
11910.9.232.236/3110.9.232.236 – 10.9.232.23710.9.232.237
12010.9.232.238/3110.9.232.238 – 10.9.232.23910.9.232.239
12110.9.232.240/3110.9.232.240 – 10.9.232.24110.9.232.241
12210.9.232.242/3110.9.232.242 – 10.9.232.24310.9.232.243
12310.9.232.244/3110.9.232.244 – 10.9.232.24510.9.232.245
12410.9.232.246/3110.9.232.246 – 10.9.232.24710.9.232.247
12510.9.232.248/3110.9.232.248 – 10.9.232.24910.9.232.249
12610.9.232.250/3110.9.232.250 – 10.9.232.25110.9.232.251
12710.9.232.252/3110.9.232.252 – 10.9.232.25310.9.232.253
12810.9.232.254/3110.9.232.254 – 10.9.232.25510.9.232.255
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 →