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)10.78.149.0/24
network10.78.149.0/24
broadcast10.78.149.255
first host10.78.149.1
last host10.78.149.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.78.149.0/24
address00001010.01001110.10010101.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.01001110.10010101.00000000
broadcast00001010.01001110.10010101.11111111
green = network part, grey = host part
hex0x0a4e9500
decimal172922112
reverse dns0.149.78.10.in-addr.arpa
ipv4-mapped::ffff:a4e:9500

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.78.149.0/3110.78.149.0 – 10.78.149.110.78.149.1
210.78.149.2/3110.78.149.2 – 10.78.149.310.78.149.3
310.78.149.4/3110.78.149.4 – 10.78.149.510.78.149.5
410.78.149.6/3110.78.149.6 – 10.78.149.710.78.149.7
510.78.149.8/3110.78.149.8 – 10.78.149.910.78.149.9
610.78.149.10/3110.78.149.10 – 10.78.149.1110.78.149.11
710.78.149.12/3110.78.149.12 – 10.78.149.1310.78.149.13
810.78.149.14/3110.78.149.14 – 10.78.149.1510.78.149.15
910.78.149.16/3110.78.149.16 – 10.78.149.1710.78.149.17
1010.78.149.18/3110.78.149.18 – 10.78.149.1910.78.149.19
1110.78.149.20/3110.78.149.20 – 10.78.149.2110.78.149.21
1210.78.149.22/3110.78.149.22 – 10.78.149.2310.78.149.23
1310.78.149.24/3110.78.149.24 – 10.78.149.2510.78.149.25
1410.78.149.26/3110.78.149.26 – 10.78.149.2710.78.149.27
1510.78.149.28/3110.78.149.28 – 10.78.149.2910.78.149.29
1610.78.149.30/3110.78.149.30 – 10.78.149.3110.78.149.31
1710.78.149.32/3110.78.149.32 – 10.78.149.3310.78.149.33
1810.78.149.34/3110.78.149.34 – 10.78.149.3510.78.149.35
1910.78.149.36/3110.78.149.36 – 10.78.149.3710.78.149.37
2010.78.149.38/3110.78.149.38 – 10.78.149.3910.78.149.39
2110.78.149.40/3110.78.149.40 – 10.78.149.4110.78.149.41
2210.78.149.42/3110.78.149.42 – 10.78.149.4310.78.149.43
2310.78.149.44/3110.78.149.44 – 10.78.149.4510.78.149.45
2410.78.149.46/3110.78.149.46 – 10.78.149.4710.78.149.47
2510.78.149.48/3110.78.149.48 – 10.78.149.4910.78.149.49
2610.78.149.50/3110.78.149.50 – 10.78.149.5110.78.149.51
2710.78.149.52/3110.78.149.52 – 10.78.149.5310.78.149.53
2810.78.149.54/3110.78.149.54 – 10.78.149.5510.78.149.55
2910.78.149.56/3110.78.149.56 – 10.78.149.5710.78.149.57
3010.78.149.58/3110.78.149.58 – 10.78.149.5910.78.149.59
3110.78.149.60/3110.78.149.60 – 10.78.149.6110.78.149.61
3210.78.149.62/3110.78.149.62 – 10.78.149.6310.78.149.63
3310.78.149.64/3110.78.149.64 – 10.78.149.6510.78.149.65
3410.78.149.66/3110.78.149.66 – 10.78.149.6710.78.149.67
3510.78.149.68/3110.78.149.68 – 10.78.149.6910.78.149.69
3610.78.149.70/3110.78.149.70 – 10.78.149.7110.78.149.71
3710.78.149.72/3110.78.149.72 – 10.78.149.7310.78.149.73
3810.78.149.74/3110.78.149.74 – 10.78.149.7510.78.149.75
3910.78.149.76/3110.78.149.76 – 10.78.149.7710.78.149.77
4010.78.149.78/3110.78.149.78 – 10.78.149.7910.78.149.79
4110.78.149.80/3110.78.149.80 – 10.78.149.8110.78.149.81
4210.78.149.82/3110.78.149.82 – 10.78.149.8310.78.149.83
4310.78.149.84/3110.78.149.84 – 10.78.149.8510.78.149.85
4410.78.149.86/3110.78.149.86 – 10.78.149.8710.78.149.87
4510.78.149.88/3110.78.149.88 – 10.78.149.8910.78.149.89
4610.78.149.90/3110.78.149.90 – 10.78.149.9110.78.149.91
4710.78.149.92/3110.78.149.92 – 10.78.149.9310.78.149.93
4810.78.149.94/3110.78.149.94 – 10.78.149.9510.78.149.95
4910.78.149.96/3110.78.149.96 – 10.78.149.9710.78.149.97
5010.78.149.98/3110.78.149.98 – 10.78.149.9910.78.149.99
5110.78.149.100/3110.78.149.100 – 10.78.149.10110.78.149.101
5210.78.149.102/3110.78.149.102 – 10.78.149.10310.78.149.103
5310.78.149.104/3110.78.149.104 – 10.78.149.10510.78.149.105
5410.78.149.106/3110.78.149.106 – 10.78.149.10710.78.149.107
5510.78.149.108/3110.78.149.108 – 10.78.149.10910.78.149.109
5610.78.149.110/3110.78.149.110 – 10.78.149.11110.78.149.111
5710.78.149.112/3110.78.149.112 – 10.78.149.11310.78.149.113
5810.78.149.114/3110.78.149.114 – 10.78.149.11510.78.149.115
5910.78.149.116/3110.78.149.116 – 10.78.149.11710.78.149.117
6010.78.149.118/3110.78.149.118 – 10.78.149.11910.78.149.119
6110.78.149.120/3110.78.149.120 – 10.78.149.12110.78.149.121
6210.78.149.122/3110.78.149.122 – 10.78.149.12310.78.149.123
6310.78.149.124/3110.78.149.124 – 10.78.149.12510.78.149.125
6410.78.149.126/3110.78.149.126 – 10.78.149.12710.78.149.127
6510.78.149.128/3110.78.149.128 – 10.78.149.12910.78.149.129
6610.78.149.130/3110.78.149.130 – 10.78.149.13110.78.149.131
6710.78.149.132/3110.78.149.132 – 10.78.149.13310.78.149.133
6810.78.149.134/3110.78.149.134 – 10.78.149.13510.78.149.135
6910.78.149.136/3110.78.149.136 – 10.78.149.13710.78.149.137
7010.78.149.138/3110.78.149.138 – 10.78.149.13910.78.149.139
7110.78.149.140/3110.78.149.140 – 10.78.149.14110.78.149.141
7210.78.149.142/3110.78.149.142 – 10.78.149.14310.78.149.143
7310.78.149.144/3110.78.149.144 – 10.78.149.14510.78.149.145
7410.78.149.146/3110.78.149.146 – 10.78.149.14710.78.149.147
7510.78.149.148/3110.78.149.148 – 10.78.149.14910.78.149.149
7610.78.149.150/3110.78.149.150 – 10.78.149.15110.78.149.151
7710.78.149.152/3110.78.149.152 – 10.78.149.15310.78.149.153
7810.78.149.154/3110.78.149.154 – 10.78.149.15510.78.149.155
7910.78.149.156/3110.78.149.156 – 10.78.149.15710.78.149.157
8010.78.149.158/3110.78.149.158 – 10.78.149.15910.78.149.159
8110.78.149.160/3110.78.149.160 – 10.78.149.16110.78.149.161
8210.78.149.162/3110.78.149.162 – 10.78.149.16310.78.149.163
8310.78.149.164/3110.78.149.164 – 10.78.149.16510.78.149.165
8410.78.149.166/3110.78.149.166 – 10.78.149.16710.78.149.167
8510.78.149.168/3110.78.149.168 – 10.78.149.16910.78.149.169
8610.78.149.170/3110.78.149.170 – 10.78.149.17110.78.149.171
8710.78.149.172/3110.78.149.172 – 10.78.149.17310.78.149.173
8810.78.149.174/3110.78.149.174 – 10.78.149.17510.78.149.175
8910.78.149.176/3110.78.149.176 – 10.78.149.17710.78.149.177
9010.78.149.178/3110.78.149.178 – 10.78.149.17910.78.149.179
9110.78.149.180/3110.78.149.180 – 10.78.149.18110.78.149.181
9210.78.149.182/3110.78.149.182 – 10.78.149.18310.78.149.183
9310.78.149.184/3110.78.149.184 – 10.78.149.18510.78.149.185
9410.78.149.186/3110.78.149.186 – 10.78.149.18710.78.149.187
9510.78.149.188/3110.78.149.188 – 10.78.149.18910.78.149.189
9610.78.149.190/3110.78.149.190 – 10.78.149.19110.78.149.191
9710.78.149.192/3110.78.149.192 – 10.78.149.19310.78.149.193
9810.78.149.194/3110.78.149.194 – 10.78.149.19510.78.149.195
9910.78.149.196/3110.78.149.196 – 10.78.149.19710.78.149.197
10010.78.149.198/3110.78.149.198 – 10.78.149.19910.78.149.199
10110.78.149.200/3110.78.149.200 – 10.78.149.20110.78.149.201
10210.78.149.202/3110.78.149.202 – 10.78.149.20310.78.149.203
10310.78.149.204/3110.78.149.204 – 10.78.149.20510.78.149.205
10410.78.149.206/3110.78.149.206 – 10.78.149.20710.78.149.207
10510.78.149.208/3110.78.149.208 – 10.78.149.20910.78.149.209
10610.78.149.210/3110.78.149.210 – 10.78.149.21110.78.149.211
10710.78.149.212/3110.78.149.212 – 10.78.149.21310.78.149.213
10810.78.149.214/3110.78.149.214 – 10.78.149.21510.78.149.215
10910.78.149.216/3110.78.149.216 – 10.78.149.21710.78.149.217
11010.78.149.218/3110.78.149.218 – 10.78.149.21910.78.149.219
11110.78.149.220/3110.78.149.220 – 10.78.149.22110.78.149.221
11210.78.149.222/3110.78.149.222 – 10.78.149.22310.78.149.223
11310.78.149.224/3110.78.149.224 – 10.78.149.22510.78.149.225
11410.78.149.226/3110.78.149.226 – 10.78.149.22710.78.149.227
11510.78.149.228/3110.78.149.228 – 10.78.149.22910.78.149.229
11610.78.149.230/3110.78.149.230 – 10.78.149.23110.78.149.231
11710.78.149.232/3110.78.149.232 – 10.78.149.23310.78.149.233
11810.78.149.234/3110.78.149.234 – 10.78.149.23510.78.149.235
11910.78.149.236/3110.78.149.236 – 10.78.149.23710.78.149.237
12010.78.149.238/3110.78.149.238 – 10.78.149.23910.78.149.239
12110.78.149.240/3110.78.149.240 – 10.78.149.24110.78.149.241
12210.78.149.242/3110.78.149.242 – 10.78.149.24310.78.149.243
12310.78.149.244/3110.78.149.244 – 10.78.149.24510.78.149.245
12410.78.149.246/3110.78.149.246 – 10.78.149.24710.78.149.247
12510.78.149.248/3110.78.149.248 – 10.78.149.24910.78.149.249
12610.78.149.250/3110.78.149.250 – 10.78.149.25110.78.149.251
12710.78.149.252/3110.78.149.252 – 10.78.149.25310.78.149.253
12810.78.149.254/3110.78.149.254 – 10.78.149.25510.78.149.255
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 →