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)10.80.22.0/24
network10.80.22.0/24
broadcast10.80.22.255
first host10.80.22.1
last host10.80.22.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.80.22.0/24
address00001010.01010000.00010110.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.01010000.00010110.00000000
broadcast00001010.01010000.00010110.11111111
green = network part, grey = host part
hex0x0a501600
decimal173020672
reverse dns0.22.80.10.in-addr.arpa
ipv4-mapped::ffff:a50:1600

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.80.22.0/3110.80.22.0 – 10.80.22.110.80.22.1
210.80.22.2/3110.80.22.2 – 10.80.22.310.80.22.3
310.80.22.4/3110.80.22.4 – 10.80.22.510.80.22.5
410.80.22.6/3110.80.22.6 – 10.80.22.710.80.22.7
510.80.22.8/3110.80.22.8 – 10.80.22.910.80.22.9
610.80.22.10/3110.80.22.10 – 10.80.22.1110.80.22.11
710.80.22.12/3110.80.22.12 – 10.80.22.1310.80.22.13
810.80.22.14/3110.80.22.14 – 10.80.22.1510.80.22.15
910.80.22.16/3110.80.22.16 – 10.80.22.1710.80.22.17
1010.80.22.18/3110.80.22.18 – 10.80.22.1910.80.22.19
1110.80.22.20/3110.80.22.20 – 10.80.22.2110.80.22.21
1210.80.22.22/3110.80.22.22 – 10.80.22.2310.80.22.23
1310.80.22.24/3110.80.22.24 – 10.80.22.2510.80.22.25
1410.80.22.26/3110.80.22.26 – 10.80.22.2710.80.22.27
1510.80.22.28/3110.80.22.28 – 10.80.22.2910.80.22.29
1610.80.22.30/3110.80.22.30 – 10.80.22.3110.80.22.31
1710.80.22.32/3110.80.22.32 – 10.80.22.3310.80.22.33
1810.80.22.34/3110.80.22.34 – 10.80.22.3510.80.22.35
1910.80.22.36/3110.80.22.36 – 10.80.22.3710.80.22.37
2010.80.22.38/3110.80.22.38 – 10.80.22.3910.80.22.39
2110.80.22.40/3110.80.22.40 – 10.80.22.4110.80.22.41
2210.80.22.42/3110.80.22.42 – 10.80.22.4310.80.22.43
2310.80.22.44/3110.80.22.44 – 10.80.22.4510.80.22.45
2410.80.22.46/3110.80.22.46 – 10.80.22.4710.80.22.47
2510.80.22.48/3110.80.22.48 – 10.80.22.4910.80.22.49
2610.80.22.50/3110.80.22.50 – 10.80.22.5110.80.22.51
2710.80.22.52/3110.80.22.52 – 10.80.22.5310.80.22.53
2810.80.22.54/3110.80.22.54 – 10.80.22.5510.80.22.55
2910.80.22.56/3110.80.22.56 – 10.80.22.5710.80.22.57
3010.80.22.58/3110.80.22.58 – 10.80.22.5910.80.22.59
3110.80.22.60/3110.80.22.60 – 10.80.22.6110.80.22.61
3210.80.22.62/3110.80.22.62 – 10.80.22.6310.80.22.63
3310.80.22.64/3110.80.22.64 – 10.80.22.6510.80.22.65
3410.80.22.66/3110.80.22.66 – 10.80.22.6710.80.22.67
3510.80.22.68/3110.80.22.68 – 10.80.22.6910.80.22.69
3610.80.22.70/3110.80.22.70 – 10.80.22.7110.80.22.71
3710.80.22.72/3110.80.22.72 – 10.80.22.7310.80.22.73
3810.80.22.74/3110.80.22.74 – 10.80.22.7510.80.22.75
3910.80.22.76/3110.80.22.76 – 10.80.22.7710.80.22.77
4010.80.22.78/3110.80.22.78 – 10.80.22.7910.80.22.79
4110.80.22.80/3110.80.22.80 – 10.80.22.8110.80.22.81
4210.80.22.82/3110.80.22.82 – 10.80.22.8310.80.22.83
4310.80.22.84/3110.80.22.84 – 10.80.22.8510.80.22.85
4410.80.22.86/3110.80.22.86 – 10.80.22.8710.80.22.87
4510.80.22.88/3110.80.22.88 – 10.80.22.8910.80.22.89
4610.80.22.90/3110.80.22.90 – 10.80.22.9110.80.22.91
4710.80.22.92/3110.80.22.92 – 10.80.22.9310.80.22.93
4810.80.22.94/3110.80.22.94 – 10.80.22.9510.80.22.95
4910.80.22.96/3110.80.22.96 – 10.80.22.9710.80.22.97
5010.80.22.98/3110.80.22.98 – 10.80.22.9910.80.22.99
5110.80.22.100/3110.80.22.100 – 10.80.22.10110.80.22.101
5210.80.22.102/3110.80.22.102 – 10.80.22.10310.80.22.103
5310.80.22.104/3110.80.22.104 – 10.80.22.10510.80.22.105
5410.80.22.106/3110.80.22.106 – 10.80.22.10710.80.22.107
5510.80.22.108/3110.80.22.108 – 10.80.22.10910.80.22.109
5610.80.22.110/3110.80.22.110 – 10.80.22.11110.80.22.111
5710.80.22.112/3110.80.22.112 – 10.80.22.11310.80.22.113
5810.80.22.114/3110.80.22.114 – 10.80.22.11510.80.22.115
5910.80.22.116/3110.80.22.116 – 10.80.22.11710.80.22.117
6010.80.22.118/3110.80.22.118 – 10.80.22.11910.80.22.119
6110.80.22.120/3110.80.22.120 – 10.80.22.12110.80.22.121
6210.80.22.122/3110.80.22.122 – 10.80.22.12310.80.22.123
6310.80.22.124/3110.80.22.124 – 10.80.22.12510.80.22.125
6410.80.22.126/3110.80.22.126 – 10.80.22.12710.80.22.127
6510.80.22.128/3110.80.22.128 – 10.80.22.12910.80.22.129
6610.80.22.130/3110.80.22.130 – 10.80.22.13110.80.22.131
6710.80.22.132/3110.80.22.132 – 10.80.22.13310.80.22.133
6810.80.22.134/3110.80.22.134 – 10.80.22.13510.80.22.135
6910.80.22.136/3110.80.22.136 – 10.80.22.13710.80.22.137
7010.80.22.138/3110.80.22.138 – 10.80.22.13910.80.22.139
7110.80.22.140/3110.80.22.140 – 10.80.22.14110.80.22.141
7210.80.22.142/3110.80.22.142 – 10.80.22.14310.80.22.143
7310.80.22.144/3110.80.22.144 – 10.80.22.14510.80.22.145
7410.80.22.146/3110.80.22.146 – 10.80.22.14710.80.22.147
7510.80.22.148/3110.80.22.148 – 10.80.22.14910.80.22.149
7610.80.22.150/3110.80.22.150 – 10.80.22.15110.80.22.151
7710.80.22.152/3110.80.22.152 – 10.80.22.15310.80.22.153
7810.80.22.154/3110.80.22.154 – 10.80.22.15510.80.22.155
7910.80.22.156/3110.80.22.156 – 10.80.22.15710.80.22.157
8010.80.22.158/3110.80.22.158 – 10.80.22.15910.80.22.159
8110.80.22.160/3110.80.22.160 – 10.80.22.16110.80.22.161
8210.80.22.162/3110.80.22.162 – 10.80.22.16310.80.22.163
8310.80.22.164/3110.80.22.164 – 10.80.22.16510.80.22.165
8410.80.22.166/3110.80.22.166 – 10.80.22.16710.80.22.167
8510.80.22.168/3110.80.22.168 – 10.80.22.16910.80.22.169
8610.80.22.170/3110.80.22.170 – 10.80.22.17110.80.22.171
8710.80.22.172/3110.80.22.172 – 10.80.22.17310.80.22.173
8810.80.22.174/3110.80.22.174 – 10.80.22.17510.80.22.175
8910.80.22.176/3110.80.22.176 – 10.80.22.17710.80.22.177
9010.80.22.178/3110.80.22.178 – 10.80.22.17910.80.22.179
9110.80.22.180/3110.80.22.180 – 10.80.22.18110.80.22.181
9210.80.22.182/3110.80.22.182 – 10.80.22.18310.80.22.183
9310.80.22.184/3110.80.22.184 – 10.80.22.18510.80.22.185
9410.80.22.186/3110.80.22.186 – 10.80.22.18710.80.22.187
9510.80.22.188/3110.80.22.188 – 10.80.22.18910.80.22.189
9610.80.22.190/3110.80.22.190 – 10.80.22.19110.80.22.191
9710.80.22.192/3110.80.22.192 – 10.80.22.19310.80.22.193
9810.80.22.194/3110.80.22.194 – 10.80.22.19510.80.22.195
9910.80.22.196/3110.80.22.196 – 10.80.22.19710.80.22.197
10010.80.22.198/3110.80.22.198 – 10.80.22.19910.80.22.199
10110.80.22.200/3110.80.22.200 – 10.80.22.20110.80.22.201
10210.80.22.202/3110.80.22.202 – 10.80.22.20310.80.22.203
10310.80.22.204/3110.80.22.204 – 10.80.22.20510.80.22.205
10410.80.22.206/3110.80.22.206 – 10.80.22.20710.80.22.207
10510.80.22.208/3110.80.22.208 – 10.80.22.20910.80.22.209
10610.80.22.210/3110.80.22.210 – 10.80.22.21110.80.22.211
10710.80.22.212/3110.80.22.212 – 10.80.22.21310.80.22.213
10810.80.22.214/3110.80.22.214 – 10.80.22.21510.80.22.215
10910.80.22.216/3110.80.22.216 – 10.80.22.21710.80.22.217
11010.80.22.218/3110.80.22.218 – 10.80.22.21910.80.22.219
11110.80.22.220/3110.80.22.220 – 10.80.22.22110.80.22.221
11210.80.22.222/3110.80.22.222 – 10.80.22.22310.80.22.223
11310.80.22.224/3110.80.22.224 – 10.80.22.22510.80.22.225
11410.80.22.226/3110.80.22.226 – 10.80.22.22710.80.22.227
11510.80.22.228/3110.80.22.228 – 10.80.22.22910.80.22.229
11610.80.22.230/3110.80.22.230 – 10.80.22.23110.80.22.231
11710.80.22.232/3110.80.22.232 – 10.80.22.23310.80.22.233
11810.80.22.234/3110.80.22.234 – 10.80.22.23510.80.22.235
11910.80.22.236/3110.80.22.236 – 10.80.22.23710.80.22.237
12010.80.22.238/3110.80.22.238 – 10.80.22.23910.80.22.239
12110.80.22.240/3110.80.22.240 – 10.80.22.24110.80.22.241
12210.80.22.242/3110.80.22.242 – 10.80.22.24310.80.22.243
12310.80.22.244/3110.80.22.244 – 10.80.22.24510.80.22.245
12410.80.22.246/3110.80.22.246 – 10.80.22.24710.80.22.247
12510.80.22.248/3110.80.22.248 – 10.80.22.24910.80.22.249
12610.80.22.250/3110.80.22.250 – 10.80.22.25110.80.22.251
12710.80.22.252/3110.80.22.252 – 10.80.22.25310.80.22.253
12810.80.22.254/3110.80.22.254 – 10.80.22.25510.80.22.255
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 →