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)10.78.148.0/24
network10.78.148.0/24
broadcast10.78.148.255
first host10.78.148.1
last host10.78.148.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.78.148.0/24
address00001010.01001110.10010100.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.01001110.10010100.00000000
broadcast00001010.01001110.10010100.11111111
green = network part, grey = host part
hex0x0a4e9400
decimal172921856
reverse dns0.148.78.10.in-addr.arpa
ipv4-mapped::ffff:a4e:9400

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.78.148.0/3110.78.148.0 – 10.78.148.110.78.148.1
210.78.148.2/3110.78.148.2 – 10.78.148.310.78.148.3
310.78.148.4/3110.78.148.4 – 10.78.148.510.78.148.5
410.78.148.6/3110.78.148.6 – 10.78.148.710.78.148.7
510.78.148.8/3110.78.148.8 – 10.78.148.910.78.148.9
610.78.148.10/3110.78.148.10 – 10.78.148.1110.78.148.11
710.78.148.12/3110.78.148.12 – 10.78.148.1310.78.148.13
810.78.148.14/3110.78.148.14 – 10.78.148.1510.78.148.15
910.78.148.16/3110.78.148.16 – 10.78.148.1710.78.148.17
1010.78.148.18/3110.78.148.18 – 10.78.148.1910.78.148.19
1110.78.148.20/3110.78.148.20 – 10.78.148.2110.78.148.21
1210.78.148.22/3110.78.148.22 – 10.78.148.2310.78.148.23
1310.78.148.24/3110.78.148.24 – 10.78.148.2510.78.148.25
1410.78.148.26/3110.78.148.26 – 10.78.148.2710.78.148.27
1510.78.148.28/3110.78.148.28 – 10.78.148.2910.78.148.29
1610.78.148.30/3110.78.148.30 – 10.78.148.3110.78.148.31
1710.78.148.32/3110.78.148.32 – 10.78.148.3310.78.148.33
1810.78.148.34/3110.78.148.34 – 10.78.148.3510.78.148.35
1910.78.148.36/3110.78.148.36 – 10.78.148.3710.78.148.37
2010.78.148.38/3110.78.148.38 – 10.78.148.3910.78.148.39
2110.78.148.40/3110.78.148.40 – 10.78.148.4110.78.148.41
2210.78.148.42/3110.78.148.42 – 10.78.148.4310.78.148.43
2310.78.148.44/3110.78.148.44 – 10.78.148.4510.78.148.45
2410.78.148.46/3110.78.148.46 – 10.78.148.4710.78.148.47
2510.78.148.48/3110.78.148.48 – 10.78.148.4910.78.148.49
2610.78.148.50/3110.78.148.50 – 10.78.148.5110.78.148.51
2710.78.148.52/3110.78.148.52 – 10.78.148.5310.78.148.53
2810.78.148.54/3110.78.148.54 – 10.78.148.5510.78.148.55
2910.78.148.56/3110.78.148.56 – 10.78.148.5710.78.148.57
3010.78.148.58/3110.78.148.58 – 10.78.148.5910.78.148.59
3110.78.148.60/3110.78.148.60 – 10.78.148.6110.78.148.61
3210.78.148.62/3110.78.148.62 – 10.78.148.6310.78.148.63
3310.78.148.64/3110.78.148.64 – 10.78.148.6510.78.148.65
3410.78.148.66/3110.78.148.66 – 10.78.148.6710.78.148.67
3510.78.148.68/3110.78.148.68 – 10.78.148.6910.78.148.69
3610.78.148.70/3110.78.148.70 – 10.78.148.7110.78.148.71
3710.78.148.72/3110.78.148.72 – 10.78.148.7310.78.148.73
3810.78.148.74/3110.78.148.74 – 10.78.148.7510.78.148.75
3910.78.148.76/3110.78.148.76 – 10.78.148.7710.78.148.77
4010.78.148.78/3110.78.148.78 – 10.78.148.7910.78.148.79
4110.78.148.80/3110.78.148.80 – 10.78.148.8110.78.148.81
4210.78.148.82/3110.78.148.82 – 10.78.148.8310.78.148.83
4310.78.148.84/3110.78.148.84 – 10.78.148.8510.78.148.85
4410.78.148.86/3110.78.148.86 – 10.78.148.8710.78.148.87
4510.78.148.88/3110.78.148.88 – 10.78.148.8910.78.148.89
4610.78.148.90/3110.78.148.90 – 10.78.148.9110.78.148.91
4710.78.148.92/3110.78.148.92 – 10.78.148.9310.78.148.93
4810.78.148.94/3110.78.148.94 – 10.78.148.9510.78.148.95
4910.78.148.96/3110.78.148.96 – 10.78.148.9710.78.148.97
5010.78.148.98/3110.78.148.98 – 10.78.148.9910.78.148.99
5110.78.148.100/3110.78.148.100 – 10.78.148.10110.78.148.101
5210.78.148.102/3110.78.148.102 – 10.78.148.10310.78.148.103
5310.78.148.104/3110.78.148.104 – 10.78.148.10510.78.148.105
5410.78.148.106/3110.78.148.106 – 10.78.148.10710.78.148.107
5510.78.148.108/3110.78.148.108 – 10.78.148.10910.78.148.109
5610.78.148.110/3110.78.148.110 – 10.78.148.11110.78.148.111
5710.78.148.112/3110.78.148.112 – 10.78.148.11310.78.148.113
5810.78.148.114/3110.78.148.114 – 10.78.148.11510.78.148.115
5910.78.148.116/3110.78.148.116 – 10.78.148.11710.78.148.117
6010.78.148.118/3110.78.148.118 – 10.78.148.11910.78.148.119
6110.78.148.120/3110.78.148.120 – 10.78.148.12110.78.148.121
6210.78.148.122/3110.78.148.122 – 10.78.148.12310.78.148.123
6310.78.148.124/3110.78.148.124 – 10.78.148.12510.78.148.125
6410.78.148.126/3110.78.148.126 – 10.78.148.12710.78.148.127
6510.78.148.128/3110.78.148.128 – 10.78.148.12910.78.148.129
6610.78.148.130/3110.78.148.130 – 10.78.148.13110.78.148.131
6710.78.148.132/3110.78.148.132 – 10.78.148.13310.78.148.133
6810.78.148.134/3110.78.148.134 – 10.78.148.13510.78.148.135
6910.78.148.136/3110.78.148.136 – 10.78.148.13710.78.148.137
7010.78.148.138/3110.78.148.138 – 10.78.148.13910.78.148.139
7110.78.148.140/3110.78.148.140 – 10.78.148.14110.78.148.141
7210.78.148.142/3110.78.148.142 – 10.78.148.14310.78.148.143
7310.78.148.144/3110.78.148.144 – 10.78.148.14510.78.148.145
7410.78.148.146/3110.78.148.146 – 10.78.148.14710.78.148.147
7510.78.148.148/3110.78.148.148 – 10.78.148.14910.78.148.149
7610.78.148.150/3110.78.148.150 – 10.78.148.15110.78.148.151
7710.78.148.152/3110.78.148.152 – 10.78.148.15310.78.148.153
7810.78.148.154/3110.78.148.154 – 10.78.148.15510.78.148.155
7910.78.148.156/3110.78.148.156 – 10.78.148.15710.78.148.157
8010.78.148.158/3110.78.148.158 – 10.78.148.15910.78.148.159
8110.78.148.160/3110.78.148.160 – 10.78.148.16110.78.148.161
8210.78.148.162/3110.78.148.162 – 10.78.148.16310.78.148.163
8310.78.148.164/3110.78.148.164 – 10.78.148.16510.78.148.165
8410.78.148.166/3110.78.148.166 – 10.78.148.16710.78.148.167
8510.78.148.168/3110.78.148.168 – 10.78.148.16910.78.148.169
8610.78.148.170/3110.78.148.170 – 10.78.148.17110.78.148.171
8710.78.148.172/3110.78.148.172 – 10.78.148.17310.78.148.173
8810.78.148.174/3110.78.148.174 – 10.78.148.17510.78.148.175
8910.78.148.176/3110.78.148.176 – 10.78.148.17710.78.148.177
9010.78.148.178/3110.78.148.178 – 10.78.148.17910.78.148.179
9110.78.148.180/3110.78.148.180 – 10.78.148.18110.78.148.181
9210.78.148.182/3110.78.148.182 – 10.78.148.18310.78.148.183
9310.78.148.184/3110.78.148.184 – 10.78.148.18510.78.148.185
9410.78.148.186/3110.78.148.186 – 10.78.148.18710.78.148.187
9510.78.148.188/3110.78.148.188 – 10.78.148.18910.78.148.189
9610.78.148.190/3110.78.148.190 – 10.78.148.19110.78.148.191
9710.78.148.192/3110.78.148.192 – 10.78.148.19310.78.148.193
9810.78.148.194/3110.78.148.194 – 10.78.148.19510.78.148.195
9910.78.148.196/3110.78.148.196 – 10.78.148.19710.78.148.197
10010.78.148.198/3110.78.148.198 – 10.78.148.19910.78.148.199
10110.78.148.200/3110.78.148.200 – 10.78.148.20110.78.148.201
10210.78.148.202/3110.78.148.202 – 10.78.148.20310.78.148.203
10310.78.148.204/3110.78.148.204 – 10.78.148.20510.78.148.205
10410.78.148.206/3110.78.148.206 – 10.78.148.20710.78.148.207
10510.78.148.208/3110.78.148.208 – 10.78.148.20910.78.148.209
10610.78.148.210/3110.78.148.210 – 10.78.148.21110.78.148.211
10710.78.148.212/3110.78.148.212 – 10.78.148.21310.78.148.213
10810.78.148.214/3110.78.148.214 – 10.78.148.21510.78.148.215
10910.78.148.216/3110.78.148.216 – 10.78.148.21710.78.148.217
11010.78.148.218/3110.78.148.218 – 10.78.148.21910.78.148.219
11110.78.148.220/3110.78.148.220 – 10.78.148.22110.78.148.221
11210.78.148.222/3110.78.148.222 – 10.78.148.22310.78.148.223
11310.78.148.224/3110.78.148.224 – 10.78.148.22510.78.148.225
11410.78.148.226/3110.78.148.226 – 10.78.148.22710.78.148.227
11510.78.148.228/3110.78.148.228 – 10.78.148.22910.78.148.229
11610.78.148.230/3110.78.148.230 – 10.78.148.23110.78.148.231
11710.78.148.232/3110.78.148.232 – 10.78.148.23310.78.148.233
11810.78.148.234/3110.78.148.234 – 10.78.148.23510.78.148.235
11910.78.148.236/3110.78.148.236 – 10.78.148.23710.78.148.237
12010.78.148.238/3110.78.148.238 – 10.78.148.23910.78.148.239
12110.78.148.240/3110.78.148.240 – 10.78.148.24110.78.148.241
12210.78.148.242/3110.78.148.242 – 10.78.148.24310.78.148.243
12310.78.148.244/3110.78.148.244 – 10.78.148.24510.78.148.245
12410.78.148.246/3110.78.148.246 – 10.78.148.24710.78.148.247
12510.78.148.248/3110.78.148.248 – 10.78.148.24910.78.148.249
12610.78.148.250/3110.78.148.250 – 10.78.148.25110.78.148.251
12710.78.148.252/3110.78.148.252 – 10.78.148.25310.78.148.253
12810.78.148.254/3110.78.148.254 – 10.78.148.25510.78.148.255
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 →