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)10.4.26.0/24
network10.4.26.0/24
broadcast10.4.26.255
first host10.4.26.1
last host10.4.26.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.4.26.0/24
address00001010.00000100.00011010.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.00000100.00011010.00000000
broadcast00001010.00000100.00011010.11111111
green = network part, grey = host part
hex0x0a041a00
decimal168040960
reverse dns0.26.4.10.in-addr.arpa
ipv4-mapped::ffff:a04:1a00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.4.26.0/3110.4.26.0 – 10.4.26.110.4.26.1
210.4.26.2/3110.4.26.2 – 10.4.26.310.4.26.3
310.4.26.4/3110.4.26.4 – 10.4.26.510.4.26.5
410.4.26.6/3110.4.26.6 – 10.4.26.710.4.26.7
510.4.26.8/3110.4.26.8 – 10.4.26.910.4.26.9
610.4.26.10/3110.4.26.10 – 10.4.26.1110.4.26.11
710.4.26.12/3110.4.26.12 – 10.4.26.1310.4.26.13
810.4.26.14/3110.4.26.14 – 10.4.26.1510.4.26.15
910.4.26.16/3110.4.26.16 – 10.4.26.1710.4.26.17
1010.4.26.18/3110.4.26.18 – 10.4.26.1910.4.26.19
1110.4.26.20/3110.4.26.20 – 10.4.26.2110.4.26.21
1210.4.26.22/3110.4.26.22 – 10.4.26.2310.4.26.23
1310.4.26.24/3110.4.26.24 – 10.4.26.2510.4.26.25
1410.4.26.26/3110.4.26.26 – 10.4.26.2710.4.26.27
1510.4.26.28/3110.4.26.28 – 10.4.26.2910.4.26.29
1610.4.26.30/3110.4.26.30 – 10.4.26.3110.4.26.31
1710.4.26.32/3110.4.26.32 – 10.4.26.3310.4.26.33
1810.4.26.34/3110.4.26.34 – 10.4.26.3510.4.26.35
1910.4.26.36/3110.4.26.36 – 10.4.26.3710.4.26.37
2010.4.26.38/3110.4.26.38 – 10.4.26.3910.4.26.39
2110.4.26.40/3110.4.26.40 – 10.4.26.4110.4.26.41
2210.4.26.42/3110.4.26.42 – 10.4.26.4310.4.26.43
2310.4.26.44/3110.4.26.44 – 10.4.26.4510.4.26.45
2410.4.26.46/3110.4.26.46 – 10.4.26.4710.4.26.47
2510.4.26.48/3110.4.26.48 – 10.4.26.4910.4.26.49
2610.4.26.50/3110.4.26.50 – 10.4.26.5110.4.26.51
2710.4.26.52/3110.4.26.52 – 10.4.26.5310.4.26.53
2810.4.26.54/3110.4.26.54 – 10.4.26.5510.4.26.55
2910.4.26.56/3110.4.26.56 – 10.4.26.5710.4.26.57
3010.4.26.58/3110.4.26.58 – 10.4.26.5910.4.26.59
3110.4.26.60/3110.4.26.60 – 10.4.26.6110.4.26.61
3210.4.26.62/3110.4.26.62 – 10.4.26.6310.4.26.63
3310.4.26.64/3110.4.26.64 – 10.4.26.6510.4.26.65
3410.4.26.66/3110.4.26.66 – 10.4.26.6710.4.26.67
3510.4.26.68/3110.4.26.68 – 10.4.26.6910.4.26.69
3610.4.26.70/3110.4.26.70 – 10.4.26.7110.4.26.71
3710.4.26.72/3110.4.26.72 – 10.4.26.7310.4.26.73
3810.4.26.74/3110.4.26.74 – 10.4.26.7510.4.26.75
3910.4.26.76/3110.4.26.76 – 10.4.26.7710.4.26.77
4010.4.26.78/3110.4.26.78 – 10.4.26.7910.4.26.79
4110.4.26.80/3110.4.26.80 – 10.4.26.8110.4.26.81
4210.4.26.82/3110.4.26.82 – 10.4.26.8310.4.26.83
4310.4.26.84/3110.4.26.84 – 10.4.26.8510.4.26.85
4410.4.26.86/3110.4.26.86 – 10.4.26.8710.4.26.87
4510.4.26.88/3110.4.26.88 – 10.4.26.8910.4.26.89
4610.4.26.90/3110.4.26.90 – 10.4.26.9110.4.26.91
4710.4.26.92/3110.4.26.92 – 10.4.26.9310.4.26.93
4810.4.26.94/3110.4.26.94 – 10.4.26.9510.4.26.95
4910.4.26.96/3110.4.26.96 – 10.4.26.9710.4.26.97
5010.4.26.98/3110.4.26.98 – 10.4.26.9910.4.26.99
5110.4.26.100/3110.4.26.100 – 10.4.26.10110.4.26.101
5210.4.26.102/3110.4.26.102 – 10.4.26.10310.4.26.103
5310.4.26.104/3110.4.26.104 – 10.4.26.10510.4.26.105
5410.4.26.106/3110.4.26.106 – 10.4.26.10710.4.26.107
5510.4.26.108/3110.4.26.108 – 10.4.26.10910.4.26.109
5610.4.26.110/3110.4.26.110 – 10.4.26.11110.4.26.111
5710.4.26.112/3110.4.26.112 – 10.4.26.11310.4.26.113
5810.4.26.114/3110.4.26.114 – 10.4.26.11510.4.26.115
5910.4.26.116/3110.4.26.116 – 10.4.26.11710.4.26.117
6010.4.26.118/3110.4.26.118 – 10.4.26.11910.4.26.119
6110.4.26.120/3110.4.26.120 – 10.4.26.12110.4.26.121
6210.4.26.122/3110.4.26.122 – 10.4.26.12310.4.26.123
6310.4.26.124/3110.4.26.124 – 10.4.26.12510.4.26.125
6410.4.26.126/3110.4.26.126 – 10.4.26.12710.4.26.127
6510.4.26.128/3110.4.26.128 – 10.4.26.12910.4.26.129
6610.4.26.130/3110.4.26.130 – 10.4.26.13110.4.26.131
6710.4.26.132/3110.4.26.132 – 10.4.26.13310.4.26.133
6810.4.26.134/3110.4.26.134 – 10.4.26.13510.4.26.135
6910.4.26.136/3110.4.26.136 – 10.4.26.13710.4.26.137
7010.4.26.138/3110.4.26.138 – 10.4.26.13910.4.26.139
7110.4.26.140/3110.4.26.140 – 10.4.26.14110.4.26.141
7210.4.26.142/3110.4.26.142 – 10.4.26.14310.4.26.143
7310.4.26.144/3110.4.26.144 – 10.4.26.14510.4.26.145
7410.4.26.146/3110.4.26.146 – 10.4.26.14710.4.26.147
7510.4.26.148/3110.4.26.148 – 10.4.26.14910.4.26.149
7610.4.26.150/3110.4.26.150 – 10.4.26.15110.4.26.151
7710.4.26.152/3110.4.26.152 – 10.4.26.15310.4.26.153
7810.4.26.154/3110.4.26.154 – 10.4.26.15510.4.26.155
7910.4.26.156/3110.4.26.156 – 10.4.26.15710.4.26.157
8010.4.26.158/3110.4.26.158 – 10.4.26.15910.4.26.159
8110.4.26.160/3110.4.26.160 – 10.4.26.16110.4.26.161
8210.4.26.162/3110.4.26.162 – 10.4.26.16310.4.26.163
8310.4.26.164/3110.4.26.164 – 10.4.26.16510.4.26.165
8410.4.26.166/3110.4.26.166 – 10.4.26.16710.4.26.167
8510.4.26.168/3110.4.26.168 – 10.4.26.16910.4.26.169
8610.4.26.170/3110.4.26.170 – 10.4.26.17110.4.26.171
8710.4.26.172/3110.4.26.172 – 10.4.26.17310.4.26.173
8810.4.26.174/3110.4.26.174 – 10.4.26.17510.4.26.175
8910.4.26.176/3110.4.26.176 – 10.4.26.17710.4.26.177
9010.4.26.178/3110.4.26.178 – 10.4.26.17910.4.26.179
9110.4.26.180/3110.4.26.180 – 10.4.26.18110.4.26.181
9210.4.26.182/3110.4.26.182 – 10.4.26.18310.4.26.183
9310.4.26.184/3110.4.26.184 – 10.4.26.18510.4.26.185
9410.4.26.186/3110.4.26.186 – 10.4.26.18710.4.26.187
9510.4.26.188/3110.4.26.188 – 10.4.26.18910.4.26.189
9610.4.26.190/3110.4.26.190 – 10.4.26.19110.4.26.191
9710.4.26.192/3110.4.26.192 – 10.4.26.19310.4.26.193
9810.4.26.194/3110.4.26.194 – 10.4.26.19510.4.26.195
9910.4.26.196/3110.4.26.196 – 10.4.26.19710.4.26.197
10010.4.26.198/3110.4.26.198 – 10.4.26.19910.4.26.199
10110.4.26.200/3110.4.26.200 – 10.4.26.20110.4.26.201
10210.4.26.202/3110.4.26.202 – 10.4.26.20310.4.26.203
10310.4.26.204/3110.4.26.204 – 10.4.26.20510.4.26.205
10410.4.26.206/3110.4.26.206 – 10.4.26.20710.4.26.207
10510.4.26.208/3110.4.26.208 – 10.4.26.20910.4.26.209
10610.4.26.210/3110.4.26.210 – 10.4.26.21110.4.26.211
10710.4.26.212/3110.4.26.212 – 10.4.26.21310.4.26.213
10810.4.26.214/3110.4.26.214 – 10.4.26.21510.4.26.215
10910.4.26.216/3110.4.26.216 – 10.4.26.21710.4.26.217
11010.4.26.218/3110.4.26.218 – 10.4.26.21910.4.26.219
11110.4.26.220/3110.4.26.220 – 10.4.26.22110.4.26.221
11210.4.26.222/3110.4.26.222 – 10.4.26.22310.4.26.223
11310.4.26.224/3110.4.26.224 – 10.4.26.22510.4.26.225
11410.4.26.226/3110.4.26.226 – 10.4.26.22710.4.26.227
11510.4.26.228/3110.4.26.228 – 10.4.26.22910.4.26.229
11610.4.26.230/3110.4.26.230 – 10.4.26.23110.4.26.231
11710.4.26.232/3110.4.26.232 – 10.4.26.23310.4.26.233
11810.4.26.234/3110.4.26.234 – 10.4.26.23510.4.26.235
11910.4.26.236/3110.4.26.236 – 10.4.26.23710.4.26.237
12010.4.26.238/3110.4.26.238 – 10.4.26.23910.4.26.239
12110.4.26.240/3110.4.26.240 – 10.4.26.24110.4.26.241
12210.4.26.242/3110.4.26.242 – 10.4.26.24310.4.26.243
12310.4.26.244/3110.4.26.244 – 10.4.26.24510.4.26.245
12410.4.26.246/3110.4.26.246 – 10.4.26.24710.4.26.247
12510.4.26.248/3110.4.26.248 – 10.4.26.24910.4.26.249
12610.4.26.250/3110.4.26.250 – 10.4.26.25110.4.26.251
12710.4.26.252/3110.4.26.252 – 10.4.26.25310.4.26.253
12810.4.26.254/3110.4.26.254 – 10.4.26.25510.4.26.255
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 →