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)10.7.136.0/24
network10.7.136.0/24
broadcast10.7.136.255
first host10.7.136.1
last host10.7.136.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.7.136.0/24
address00001010.00000111.10001000.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.00000111.10001000.00000000
broadcast00001010.00000111.10001000.11111111
green = network part, grey = host part
hex0x0a078800
decimal168265728
reverse dns0.136.7.10.in-addr.arpa
ipv4-mapped::ffff:a07:8800

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.7.136.0/3110.7.136.0 – 10.7.136.110.7.136.1
210.7.136.2/3110.7.136.2 – 10.7.136.310.7.136.3
310.7.136.4/3110.7.136.4 – 10.7.136.510.7.136.5
410.7.136.6/3110.7.136.6 – 10.7.136.710.7.136.7
510.7.136.8/3110.7.136.8 – 10.7.136.910.7.136.9
610.7.136.10/3110.7.136.10 – 10.7.136.1110.7.136.11
710.7.136.12/3110.7.136.12 – 10.7.136.1310.7.136.13
810.7.136.14/3110.7.136.14 – 10.7.136.1510.7.136.15
910.7.136.16/3110.7.136.16 – 10.7.136.1710.7.136.17
1010.7.136.18/3110.7.136.18 – 10.7.136.1910.7.136.19
1110.7.136.20/3110.7.136.20 – 10.7.136.2110.7.136.21
1210.7.136.22/3110.7.136.22 – 10.7.136.2310.7.136.23
1310.7.136.24/3110.7.136.24 – 10.7.136.2510.7.136.25
1410.7.136.26/3110.7.136.26 – 10.7.136.2710.7.136.27
1510.7.136.28/3110.7.136.28 – 10.7.136.2910.7.136.29
1610.7.136.30/3110.7.136.30 – 10.7.136.3110.7.136.31
1710.7.136.32/3110.7.136.32 – 10.7.136.3310.7.136.33
1810.7.136.34/3110.7.136.34 – 10.7.136.3510.7.136.35
1910.7.136.36/3110.7.136.36 – 10.7.136.3710.7.136.37
2010.7.136.38/3110.7.136.38 – 10.7.136.3910.7.136.39
2110.7.136.40/3110.7.136.40 – 10.7.136.4110.7.136.41
2210.7.136.42/3110.7.136.42 – 10.7.136.4310.7.136.43
2310.7.136.44/3110.7.136.44 – 10.7.136.4510.7.136.45
2410.7.136.46/3110.7.136.46 – 10.7.136.4710.7.136.47
2510.7.136.48/3110.7.136.48 – 10.7.136.4910.7.136.49
2610.7.136.50/3110.7.136.50 – 10.7.136.5110.7.136.51
2710.7.136.52/3110.7.136.52 – 10.7.136.5310.7.136.53
2810.7.136.54/3110.7.136.54 – 10.7.136.5510.7.136.55
2910.7.136.56/3110.7.136.56 – 10.7.136.5710.7.136.57
3010.7.136.58/3110.7.136.58 – 10.7.136.5910.7.136.59
3110.7.136.60/3110.7.136.60 – 10.7.136.6110.7.136.61
3210.7.136.62/3110.7.136.62 – 10.7.136.6310.7.136.63
3310.7.136.64/3110.7.136.64 – 10.7.136.6510.7.136.65
3410.7.136.66/3110.7.136.66 – 10.7.136.6710.7.136.67
3510.7.136.68/3110.7.136.68 – 10.7.136.6910.7.136.69
3610.7.136.70/3110.7.136.70 – 10.7.136.7110.7.136.71
3710.7.136.72/3110.7.136.72 – 10.7.136.7310.7.136.73
3810.7.136.74/3110.7.136.74 – 10.7.136.7510.7.136.75
3910.7.136.76/3110.7.136.76 – 10.7.136.7710.7.136.77
4010.7.136.78/3110.7.136.78 – 10.7.136.7910.7.136.79
4110.7.136.80/3110.7.136.80 – 10.7.136.8110.7.136.81
4210.7.136.82/3110.7.136.82 – 10.7.136.8310.7.136.83
4310.7.136.84/3110.7.136.84 – 10.7.136.8510.7.136.85
4410.7.136.86/3110.7.136.86 – 10.7.136.8710.7.136.87
4510.7.136.88/3110.7.136.88 – 10.7.136.8910.7.136.89
4610.7.136.90/3110.7.136.90 – 10.7.136.9110.7.136.91
4710.7.136.92/3110.7.136.92 – 10.7.136.9310.7.136.93
4810.7.136.94/3110.7.136.94 – 10.7.136.9510.7.136.95
4910.7.136.96/3110.7.136.96 – 10.7.136.9710.7.136.97
5010.7.136.98/3110.7.136.98 – 10.7.136.9910.7.136.99
5110.7.136.100/3110.7.136.100 – 10.7.136.10110.7.136.101
5210.7.136.102/3110.7.136.102 – 10.7.136.10310.7.136.103
5310.7.136.104/3110.7.136.104 – 10.7.136.10510.7.136.105
5410.7.136.106/3110.7.136.106 – 10.7.136.10710.7.136.107
5510.7.136.108/3110.7.136.108 – 10.7.136.10910.7.136.109
5610.7.136.110/3110.7.136.110 – 10.7.136.11110.7.136.111
5710.7.136.112/3110.7.136.112 – 10.7.136.11310.7.136.113
5810.7.136.114/3110.7.136.114 – 10.7.136.11510.7.136.115
5910.7.136.116/3110.7.136.116 – 10.7.136.11710.7.136.117
6010.7.136.118/3110.7.136.118 – 10.7.136.11910.7.136.119
6110.7.136.120/3110.7.136.120 – 10.7.136.12110.7.136.121
6210.7.136.122/3110.7.136.122 – 10.7.136.12310.7.136.123
6310.7.136.124/3110.7.136.124 – 10.7.136.12510.7.136.125
6410.7.136.126/3110.7.136.126 – 10.7.136.12710.7.136.127
6510.7.136.128/3110.7.136.128 – 10.7.136.12910.7.136.129
6610.7.136.130/3110.7.136.130 – 10.7.136.13110.7.136.131
6710.7.136.132/3110.7.136.132 – 10.7.136.13310.7.136.133
6810.7.136.134/3110.7.136.134 – 10.7.136.13510.7.136.135
6910.7.136.136/3110.7.136.136 – 10.7.136.13710.7.136.137
7010.7.136.138/3110.7.136.138 – 10.7.136.13910.7.136.139
7110.7.136.140/3110.7.136.140 – 10.7.136.14110.7.136.141
7210.7.136.142/3110.7.136.142 – 10.7.136.14310.7.136.143
7310.7.136.144/3110.7.136.144 – 10.7.136.14510.7.136.145
7410.7.136.146/3110.7.136.146 – 10.7.136.14710.7.136.147
7510.7.136.148/3110.7.136.148 – 10.7.136.14910.7.136.149
7610.7.136.150/3110.7.136.150 – 10.7.136.15110.7.136.151
7710.7.136.152/3110.7.136.152 – 10.7.136.15310.7.136.153
7810.7.136.154/3110.7.136.154 – 10.7.136.15510.7.136.155
7910.7.136.156/3110.7.136.156 – 10.7.136.15710.7.136.157
8010.7.136.158/3110.7.136.158 – 10.7.136.15910.7.136.159
8110.7.136.160/3110.7.136.160 – 10.7.136.16110.7.136.161
8210.7.136.162/3110.7.136.162 – 10.7.136.16310.7.136.163
8310.7.136.164/3110.7.136.164 – 10.7.136.16510.7.136.165
8410.7.136.166/3110.7.136.166 – 10.7.136.16710.7.136.167
8510.7.136.168/3110.7.136.168 – 10.7.136.16910.7.136.169
8610.7.136.170/3110.7.136.170 – 10.7.136.17110.7.136.171
8710.7.136.172/3110.7.136.172 – 10.7.136.17310.7.136.173
8810.7.136.174/3110.7.136.174 – 10.7.136.17510.7.136.175
8910.7.136.176/3110.7.136.176 – 10.7.136.17710.7.136.177
9010.7.136.178/3110.7.136.178 – 10.7.136.17910.7.136.179
9110.7.136.180/3110.7.136.180 – 10.7.136.18110.7.136.181
9210.7.136.182/3110.7.136.182 – 10.7.136.18310.7.136.183
9310.7.136.184/3110.7.136.184 – 10.7.136.18510.7.136.185
9410.7.136.186/3110.7.136.186 – 10.7.136.18710.7.136.187
9510.7.136.188/3110.7.136.188 – 10.7.136.18910.7.136.189
9610.7.136.190/3110.7.136.190 – 10.7.136.19110.7.136.191
9710.7.136.192/3110.7.136.192 – 10.7.136.19310.7.136.193
9810.7.136.194/3110.7.136.194 – 10.7.136.19510.7.136.195
9910.7.136.196/3110.7.136.196 – 10.7.136.19710.7.136.197
10010.7.136.198/3110.7.136.198 – 10.7.136.19910.7.136.199
10110.7.136.200/3110.7.136.200 – 10.7.136.20110.7.136.201
10210.7.136.202/3110.7.136.202 – 10.7.136.20310.7.136.203
10310.7.136.204/3110.7.136.204 – 10.7.136.20510.7.136.205
10410.7.136.206/3110.7.136.206 – 10.7.136.20710.7.136.207
10510.7.136.208/3110.7.136.208 – 10.7.136.20910.7.136.209
10610.7.136.210/3110.7.136.210 – 10.7.136.21110.7.136.211
10710.7.136.212/3110.7.136.212 – 10.7.136.21310.7.136.213
10810.7.136.214/3110.7.136.214 – 10.7.136.21510.7.136.215
10910.7.136.216/3110.7.136.216 – 10.7.136.21710.7.136.217
11010.7.136.218/3110.7.136.218 – 10.7.136.21910.7.136.219
11110.7.136.220/3110.7.136.220 – 10.7.136.22110.7.136.221
11210.7.136.222/3110.7.136.222 – 10.7.136.22310.7.136.223
11310.7.136.224/3110.7.136.224 – 10.7.136.22510.7.136.225
11410.7.136.226/3110.7.136.226 – 10.7.136.22710.7.136.227
11510.7.136.228/3110.7.136.228 – 10.7.136.22910.7.136.229
11610.7.136.230/3110.7.136.230 – 10.7.136.23110.7.136.231
11710.7.136.232/3110.7.136.232 – 10.7.136.23310.7.136.233
11810.7.136.234/3110.7.136.234 – 10.7.136.23510.7.136.235
11910.7.136.236/3110.7.136.236 – 10.7.136.23710.7.136.237
12010.7.136.238/3110.7.136.238 – 10.7.136.23910.7.136.239
12110.7.136.240/3110.7.136.240 – 10.7.136.24110.7.136.241
12210.7.136.242/3110.7.136.242 – 10.7.136.24310.7.136.243
12310.7.136.244/3110.7.136.244 – 10.7.136.24510.7.136.245
12410.7.136.246/3110.7.136.246 – 10.7.136.24710.7.136.247
12510.7.136.248/3110.7.136.248 – 10.7.136.24910.7.136.249
12610.7.136.250/3110.7.136.250 – 10.7.136.25110.7.136.251
12710.7.136.252/3110.7.136.252 – 10.7.136.25310.7.136.253
12810.7.136.254/3110.7.136.254 – 10.7.136.25510.7.136.255
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 →