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)10.2.59.0/24
network10.2.59.0/24
broadcast10.2.59.255
first host10.2.59.1
last host10.2.59.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.2.59.0/24
address00001010.00000010.00111011.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.00000010.00111011.00000000
broadcast00001010.00000010.00111011.11111111
green = network part, grey = host part
hex0x0a023b00
decimal167918336
reverse dns0.59.2.10.in-addr.arpa
ipv4-mapped::ffff:a02:3b00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.2.59.0/3110.2.59.0 – 10.2.59.110.2.59.1
210.2.59.2/3110.2.59.2 – 10.2.59.310.2.59.3
310.2.59.4/3110.2.59.4 – 10.2.59.510.2.59.5
410.2.59.6/3110.2.59.6 – 10.2.59.710.2.59.7
510.2.59.8/3110.2.59.8 – 10.2.59.910.2.59.9
610.2.59.10/3110.2.59.10 – 10.2.59.1110.2.59.11
710.2.59.12/3110.2.59.12 – 10.2.59.1310.2.59.13
810.2.59.14/3110.2.59.14 – 10.2.59.1510.2.59.15
910.2.59.16/3110.2.59.16 – 10.2.59.1710.2.59.17
1010.2.59.18/3110.2.59.18 – 10.2.59.1910.2.59.19
1110.2.59.20/3110.2.59.20 – 10.2.59.2110.2.59.21
1210.2.59.22/3110.2.59.22 – 10.2.59.2310.2.59.23
1310.2.59.24/3110.2.59.24 – 10.2.59.2510.2.59.25
1410.2.59.26/3110.2.59.26 – 10.2.59.2710.2.59.27
1510.2.59.28/3110.2.59.28 – 10.2.59.2910.2.59.29
1610.2.59.30/3110.2.59.30 – 10.2.59.3110.2.59.31
1710.2.59.32/3110.2.59.32 – 10.2.59.3310.2.59.33
1810.2.59.34/3110.2.59.34 – 10.2.59.3510.2.59.35
1910.2.59.36/3110.2.59.36 – 10.2.59.3710.2.59.37
2010.2.59.38/3110.2.59.38 – 10.2.59.3910.2.59.39
2110.2.59.40/3110.2.59.40 – 10.2.59.4110.2.59.41
2210.2.59.42/3110.2.59.42 – 10.2.59.4310.2.59.43
2310.2.59.44/3110.2.59.44 – 10.2.59.4510.2.59.45
2410.2.59.46/3110.2.59.46 – 10.2.59.4710.2.59.47
2510.2.59.48/3110.2.59.48 – 10.2.59.4910.2.59.49
2610.2.59.50/3110.2.59.50 – 10.2.59.5110.2.59.51
2710.2.59.52/3110.2.59.52 – 10.2.59.5310.2.59.53
2810.2.59.54/3110.2.59.54 – 10.2.59.5510.2.59.55
2910.2.59.56/3110.2.59.56 – 10.2.59.5710.2.59.57
3010.2.59.58/3110.2.59.58 – 10.2.59.5910.2.59.59
3110.2.59.60/3110.2.59.60 – 10.2.59.6110.2.59.61
3210.2.59.62/3110.2.59.62 – 10.2.59.6310.2.59.63
3310.2.59.64/3110.2.59.64 – 10.2.59.6510.2.59.65
3410.2.59.66/3110.2.59.66 – 10.2.59.6710.2.59.67
3510.2.59.68/3110.2.59.68 – 10.2.59.6910.2.59.69
3610.2.59.70/3110.2.59.70 – 10.2.59.7110.2.59.71
3710.2.59.72/3110.2.59.72 – 10.2.59.7310.2.59.73
3810.2.59.74/3110.2.59.74 – 10.2.59.7510.2.59.75
3910.2.59.76/3110.2.59.76 – 10.2.59.7710.2.59.77
4010.2.59.78/3110.2.59.78 – 10.2.59.7910.2.59.79
4110.2.59.80/3110.2.59.80 – 10.2.59.8110.2.59.81
4210.2.59.82/3110.2.59.82 – 10.2.59.8310.2.59.83
4310.2.59.84/3110.2.59.84 – 10.2.59.8510.2.59.85
4410.2.59.86/3110.2.59.86 – 10.2.59.8710.2.59.87
4510.2.59.88/3110.2.59.88 – 10.2.59.8910.2.59.89
4610.2.59.90/3110.2.59.90 – 10.2.59.9110.2.59.91
4710.2.59.92/3110.2.59.92 – 10.2.59.9310.2.59.93
4810.2.59.94/3110.2.59.94 – 10.2.59.9510.2.59.95
4910.2.59.96/3110.2.59.96 – 10.2.59.9710.2.59.97
5010.2.59.98/3110.2.59.98 – 10.2.59.9910.2.59.99
5110.2.59.100/3110.2.59.100 – 10.2.59.10110.2.59.101
5210.2.59.102/3110.2.59.102 – 10.2.59.10310.2.59.103
5310.2.59.104/3110.2.59.104 – 10.2.59.10510.2.59.105
5410.2.59.106/3110.2.59.106 – 10.2.59.10710.2.59.107
5510.2.59.108/3110.2.59.108 – 10.2.59.10910.2.59.109
5610.2.59.110/3110.2.59.110 – 10.2.59.11110.2.59.111
5710.2.59.112/3110.2.59.112 – 10.2.59.11310.2.59.113
5810.2.59.114/3110.2.59.114 – 10.2.59.11510.2.59.115
5910.2.59.116/3110.2.59.116 – 10.2.59.11710.2.59.117
6010.2.59.118/3110.2.59.118 – 10.2.59.11910.2.59.119
6110.2.59.120/3110.2.59.120 – 10.2.59.12110.2.59.121
6210.2.59.122/3110.2.59.122 – 10.2.59.12310.2.59.123
6310.2.59.124/3110.2.59.124 – 10.2.59.12510.2.59.125
6410.2.59.126/3110.2.59.126 – 10.2.59.12710.2.59.127
6510.2.59.128/3110.2.59.128 – 10.2.59.12910.2.59.129
6610.2.59.130/3110.2.59.130 – 10.2.59.13110.2.59.131
6710.2.59.132/3110.2.59.132 – 10.2.59.13310.2.59.133
6810.2.59.134/3110.2.59.134 – 10.2.59.13510.2.59.135
6910.2.59.136/3110.2.59.136 – 10.2.59.13710.2.59.137
7010.2.59.138/3110.2.59.138 – 10.2.59.13910.2.59.139
7110.2.59.140/3110.2.59.140 – 10.2.59.14110.2.59.141
7210.2.59.142/3110.2.59.142 – 10.2.59.14310.2.59.143
7310.2.59.144/3110.2.59.144 – 10.2.59.14510.2.59.145
7410.2.59.146/3110.2.59.146 – 10.2.59.14710.2.59.147
7510.2.59.148/3110.2.59.148 – 10.2.59.14910.2.59.149
7610.2.59.150/3110.2.59.150 – 10.2.59.15110.2.59.151
7710.2.59.152/3110.2.59.152 – 10.2.59.15310.2.59.153
7810.2.59.154/3110.2.59.154 – 10.2.59.15510.2.59.155
7910.2.59.156/3110.2.59.156 – 10.2.59.15710.2.59.157
8010.2.59.158/3110.2.59.158 – 10.2.59.15910.2.59.159
8110.2.59.160/3110.2.59.160 – 10.2.59.16110.2.59.161
8210.2.59.162/3110.2.59.162 – 10.2.59.16310.2.59.163
8310.2.59.164/3110.2.59.164 – 10.2.59.16510.2.59.165
8410.2.59.166/3110.2.59.166 – 10.2.59.16710.2.59.167
8510.2.59.168/3110.2.59.168 – 10.2.59.16910.2.59.169
8610.2.59.170/3110.2.59.170 – 10.2.59.17110.2.59.171
8710.2.59.172/3110.2.59.172 – 10.2.59.17310.2.59.173
8810.2.59.174/3110.2.59.174 – 10.2.59.17510.2.59.175
8910.2.59.176/3110.2.59.176 – 10.2.59.17710.2.59.177
9010.2.59.178/3110.2.59.178 – 10.2.59.17910.2.59.179
9110.2.59.180/3110.2.59.180 – 10.2.59.18110.2.59.181
9210.2.59.182/3110.2.59.182 – 10.2.59.18310.2.59.183
9310.2.59.184/3110.2.59.184 – 10.2.59.18510.2.59.185
9410.2.59.186/3110.2.59.186 – 10.2.59.18710.2.59.187
9510.2.59.188/3110.2.59.188 – 10.2.59.18910.2.59.189
9610.2.59.190/3110.2.59.190 – 10.2.59.19110.2.59.191
9710.2.59.192/3110.2.59.192 – 10.2.59.19310.2.59.193
9810.2.59.194/3110.2.59.194 – 10.2.59.19510.2.59.195
9910.2.59.196/3110.2.59.196 – 10.2.59.19710.2.59.197
10010.2.59.198/3110.2.59.198 – 10.2.59.19910.2.59.199
10110.2.59.200/3110.2.59.200 – 10.2.59.20110.2.59.201
10210.2.59.202/3110.2.59.202 – 10.2.59.20310.2.59.203
10310.2.59.204/3110.2.59.204 – 10.2.59.20510.2.59.205
10410.2.59.206/3110.2.59.206 – 10.2.59.20710.2.59.207
10510.2.59.208/3110.2.59.208 – 10.2.59.20910.2.59.209
10610.2.59.210/3110.2.59.210 – 10.2.59.21110.2.59.211
10710.2.59.212/3110.2.59.212 – 10.2.59.21310.2.59.213
10810.2.59.214/3110.2.59.214 – 10.2.59.21510.2.59.215
10910.2.59.216/3110.2.59.216 – 10.2.59.21710.2.59.217
11010.2.59.218/3110.2.59.218 – 10.2.59.21910.2.59.219
11110.2.59.220/3110.2.59.220 – 10.2.59.22110.2.59.221
11210.2.59.222/3110.2.59.222 – 10.2.59.22310.2.59.223
11310.2.59.224/3110.2.59.224 – 10.2.59.22510.2.59.225
11410.2.59.226/3110.2.59.226 – 10.2.59.22710.2.59.227
11510.2.59.228/3110.2.59.228 – 10.2.59.22910.2.59.229
11610.2.59.230/3110.2.59.230 – 10.2.59.23110.2.59.231
11710.2.59.232/3110.2.59.232 – 10.2.59.23310.2.59.233
11810.2.59.234/3110.2.59.234 – 10.2.59.23510.2.59.235
11910.2.59.236/3110.2.59.236 – 10.2.59.23710.2.59.237
12010.2.59.238/3110.2.59.238 – 10.2.59.23910.2.59.239
12110.2.59.240/3110.2.59.240 – 10.2.59.24110.2.59.241
12210.2.59.242/3110.2.59.242 – 10.2.59.24310.2.59.243
12310.2.59.244/3110.2.59.244 – 10.2.59.24510.2.59.245
12410.2.59.246/3110.2.59.246 – 10.2.59.24710.2.59.247
12510.2.59.248/3110.2.59.248 – 10.2.59.24910.2.59.249
12610.2.59.250/3110.2.59.250 – 10.2.59.25110.2.59.251
12710.2.59.252/3110.2.59.252 – 10.2.59.25310.2.59.253
12810.2.59.254/3110.2.59.254 – 10.2.59.25510.2.59.255
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 →