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)10.78.69.0/24
network10.78.69.0/24
broadcast10.78.69.255
first host10.78.69.1
last host10.78.69.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.78.69.0/24
address00001010.01001110.01000101.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.01001110.01000101.00000000
broadcast00001010.01001110.01000101.11111111
green = network part, grey = host part
hex0x0a4e4500
decimal172901632
reverse dns0.69.78.10.in-addr.arpa
ipv4-mapped::ffff:a4e:4500

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.78.69.0/3110.78.69.0 – 10.78.69.110.78.69.1
210.78.69.2/3110.78.69.2 – 10.78.69.310.78.69.3
310.78.69.4/3110.78.69.4 – 10.78.69.510.78.69.5
410.78.69.6/3110.78.69.6 – 10.78.69.710.78.69.7
510.78.69.8/3110.78.69.8 – 10.78.69.910.78.69.9
610.78.69.10/3110.78.69.10 – 10.78.69.1110.78.69.11
710.78.69.12/3110.78.69.12 – 10.78.69.1310.78.69.13
810.78.69.14/3110.78.69.14 – 10.78.69.1510.78.69.15
910.78.69.16/3110.78.69.16 – 10.78.69.1710.78.69.17
1010.78.69.18/3110.78.69.18 – 10.78.69.1910.78.69.19
1110.78.69.20/3110.78.69.20 – 10.78.69.2110.78.69.21
1210.78.69.22/3110.78.69.22 – 10.78.69.2310.78.69.23
1310.78.69.24/3110.78.69.24 – 10.78.69.2510.78.69.25
1410.78.69.26/3110.78.69.26 – 10.78.69.2710.78.69.27
1510.78.69.28/3110.78.69.28 – 10.78.69.2910.78.69.29
1610.78.69.30/3110.78.69.30 – 10.78.69.3110.78.69.31
1710.78.69.32/3110.78.69.32 – 10.78.69.3310.78.69.33
1810.78.69.34/3110.78.69.34 – 10.78.69.3510.78.69.35
1910.78.69.36/3110.78.69.36 – 10.78.69.3710.78.69.37
2010.78.69.38/3110.78.69.38 – 10.78.69.3910.78.69.39
2110.78.69.40/3110.78.69.40 – 10.78.69.4110.78.69.41
2210.78.69.42/3110.78.69.42 – 10.78.69.4310.78.69.43
2310.78.69.44/3110.78.69.44 – 10.78.69.4510.78.69.45
2410.78.69.46/3110.78.69.46 – 10.78.69.4710.78.69.47
2510.78.69.48/3110.78.69.48 – 10.78.69.4910.78.69.49
2610.78.69.50/3110.78.69.50 – 10.78.69.5110.78.69.51
2710.78.69.52/3110.78.69.52 – 10.78.69.5310.78.69.53
2810.78.69.54/3110.78.69.54 – 10.78.69.5510.78.69.55
2910.78.69.56/3110.78.69.56 – 10.78.69.5710.78.69.57
3010.78.69.58/3110.78.69.58 – 10.78.69.5910.78.69.59
3110.78.69.60/3110.78.69.60 – 10.78.69.6110.78.69.61
3210.78.69.62/3110.78.69.62 – 10.78.69.6310.78.69.63
3310.78.69.64/3110.78.69.64 – 10.78.69.6510.78.69.65
3410.78.69.66/3110.78.69.66 – 10.78.69.6710.78.69.67
3510.78.69.68/3110.78.69.68 – 10.78.69.6910.78.69.69
3610.78.69.70/3110.78.69.70 – 10.78.69.7110.78.69.71
3710.78.69.72/3110.78.69.72 – 10.78.69.7310.78.69.73
3810.78.69.74/3110.78.69.74 – 10.78.69.7510.78.69.75
3910.78.69.76/3110.78.69.76 – 10.78.69.7710.78.69.77
4010.78.69.78/3110.78.69.78 – 10.78.69.7910.78.69.79
4110.78.69.80/3110.78.69.80 – 10.78.69.8110.78.69.81
4210.78.69.82/3110.78.69.82 – 10.78.69.8310.78.69.83
4310.78.69.84/3110.78.69.84 – 10.78.69.8510.78.69.85
4410.78.69.86/3110.78.69.86 – 10.78.69.8710.78.69.87
4510.78.69.88/3110.78.69.88 – 10.78.69.8910.78.69.89
4610.78.69.90/3110.78.69.90 – 10.78.69.9110.78.69.91
4710.78.69.92/3110.78.69.92 – 10.78.69.9310.78.69.93
4810.78.69.94/3110.78.69.94 – 10.78.69.9510.78.69.95
4910.78.69.96/3110.78.69.96 – 10.78.69.9710.78.69.97
5010.78.69.98/3110.78.69.98 – 10.78.69.9910.78.69.99
5110.78.69.100/3110.78.69.100 – 10.78.69.10110.78.69.101
5210.78.69.102/3110.78.69.102 – 10.78.69.10310.78.69.103
5310.78.69.104/3110.78.69.104 – 10.78.69.10510.78.69.105
5410.78.69.106/3110.78.69.106 – 10.78.69.10710.78.69.107
5510.78.69.108/3110.78.69.108 – 10.78.69.10910.78.69.109
5610.78.69.110/3110.78.69.110 – 10.78.69.11110.78.69.111
5710.78.69.112/3110.78.69.112 – 10.78.69.11310.78.69.113
5810.78.69.114/3110.78.69.114 – 10.78.69.11510.78.69.115
5910.78.69.116/3110.78.69.116 – 10.78.69.11710.78.69.117
6010.78.69.118/3110.78.69.118 – 10.78.69.11910.78.69.119
6110.78.69.120/3110.78.69.120 – 10.78.69.12110.78.69.121
6210.78.69.122/3110.78.69.122 – 10.78.69.12310.78.69.123
6310.78.69.124/3110.78.69.124 – 10.78.69.12510.78.69.125
6410.78.69.126/3110.78.69.126 – 10.78.69.12710.78.69.127
6510.78.69.128/3110.78.69.128 – 10.78.69.12910.78.69.129
6610.78.69.130/3110.78.69.130 – 10.78.69.13110.78.69.131
6710.78.69.132/3110.78.69.132 – 10.78.69.13310.78.69.133
6810.78.69.134/3110.78.69.134 – 10.78.69.13510.78.69.135
6910.78.69.136/3110.78.69.136 – 10.78.69.13710.78.69.137
7010.78.69.138/3110.78.69.138 – 10.78.69.13910.78.69.139
7110.78.69.140/3110.78.69.140 – 10.78.69.14110.78.69.141
7210.78.69.142/3110.78.69.142 – 10.78.69.14310.78.69.143
7310.78.69.144/3110.78.69.144 – 10.78.69.14510.78.69.145
7410.78.69.146/3110.78.69.146 – 10.78.69.14710.78.69.147
7510.78.69.148/3110.78.69.148 – 10.78.69.14910.78.69.149
7610.78.69.150/3110.78.69.150 – 10.78.69.15110.78.69.151
7710.78.69.152/3110.78.69.152 – 10.78.69.15310.78.69.153
7810.78.69.154/3110.78.69.154 – 10.78.69.15510.78.69.155
7910.78.69.156/3110.78.69.156 – 10.78.69.15710.78.69.157
8010.78.69.158/3110.78.69.158 – 10.78.69.15910.78.69.159
8110.78.69.160/3110.78.69.160 – 10.78.69.16110.78.69.161
8210.78.69.162/3110.78.69.162 – 10.78.69.16310.78.69.163
8310.78.69.164/3110.78.69.164 – 10.78.69.16510.78.69.165
8410.78.69.166/3110.78.69.166 – 10.78.69.16710.78.69.167
8510.78.69.168/3110.78.69.168 – 10.78.69.16910.78.69.169
8610.78.69.170/3110.78.69.170 – 10.78.69.17110.78.69.171
8710.78.69.172/3110.78.69.172 – 10.78.69.17310.78.69.173
8810.78.69.174/3110.78.69.174 – 10.78.69.17510.78.69.175
8910.78.69.176/3110.78.69.176 – 10.78.69.17710.78.69.177
9010.78.69.178/3110.78.69.178 – 10.78.69.17910.78.69.179
9110.78.69.180/3110.78.69.180 – 10.78.69.18110.78.69.181
9210.78.69.182/3110.78.69.182 – 10.78.69.18310.78.69.183
9310.78.69.184/3110.78.69.184 – 10.78.69.18510.78.69.185
9410.78.69.186/3110.78.69.186 – 10.78.69.18710.78.69.187
9510.78.69.188/3110.78.69.188 – 10.78.69.18910.78.69.189
9610.78.69.190/3110.78.69.190 – 10.78.69.19110.78.69.191
9710.78.69.192/3110.78.69.192 – 10.78.69.19310.78.69.193
9810.78.69.194/3110.78.69.194 – 10.78.69.19510.78.69.195
9910.78.69.196/3110.78.69.196 – 10.78.69.19710.78.69.197
10010.78.69.198/3110.78.69.198 – 10.78.69.19910.78.69.199
10110.78.69.200/3110.78.69.200 – 10.78.69.20110.78.69.201
10210.78.69.202/3110.78.69.202 – 10.78.69.20310.78.69.203
10310.78.69.204/3110.78.69.204 – 10.78.69.20510.78.69.205
10410.78.69.206/3110.78.69.206 – 10.78.69.20710.78.69.207
10510.78.69.208/3110.78.69.208 – 10.78.69.20910.78.69.209
10610.78.69.210/3110.78.69.210 – 10.78.69.21110.78.69.211
10710.78.69.212/3110.78.69.212 – 10.78.69.21310.78.69.213
10810.78.69.214/3110.78.69.214 – 10.78.69.21510.78.69.215
10910.78.69.216/3110.78.69.216 – 10.78.69.21710.78.69.217
11010.78.69.218/3110.78.69.218 – 10.78.69.21910.78.69.219
11110.78.69.220/3110.78.69.220 – 10.78.69.22110.78.69.221
11210.78.69.222/3110.78.69.222 – 10.78.69.22310.78.69.223
11310.78.69.224/3110.78.69.224 – 10.78.69.22510.78.69.225
11410.78.69.226/3110.78.69.226 – 10.78.69.22710.78.69.227
11510.78.69.228/3110.78.69.228 – 10.78.69.22910.78.69.229
11610.78.69.230/3110.78.69.230 – 10.78.69.23110.78.69.231
11710.78.69.232/3110.78.69.232 – 10.78.69.23310.78.69.233
11810.78.69.234/3110.78.69.234 – 10.78.69.23510.78.69.235
11910.78.69.236/3110.78.69.236 – 10.78.69.23710.78.69.237
12010.78.69.238/3110.78.69.238 – 10.78.69.23910.78.69.239
12110.78.69.240/3110.78.69.240 – 10.78.69.24110.78.69.241
12210.78.69.242/3110.78.69.242 – 10.78.69.24310.78.69.243
12310.78.69.244/3110.78.69.244 – 10.78.69.24510.78.69.245
12410.78.69.246/3110.78.69.246 – 10.78.69.24710.78.69.247
12510.78.69.248/3110.78.69.248 – 10.78.69.24910.78.69.249
12610.78.69.250/3110.78.69.250 – 10.78.69.25110.78.69.251
12710.78.69.252/3110.78.69.252 – 10.78.69.25310.78.69.253
12810.78.69.254/3110.78.69.254 – 10.78.69.25510.78.69.255
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 →