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)10.76.28.0/24
network10.76.28.0/24
broadcast10.76.28.255
first host10.76.28.1
last host10.76.28.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.76.28.0/24
address00001010.01001100.00011100.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.01001100.00011100.00000000
broadcast00001010.01001100.00011100.11111111
green = network part, grey = host part
hex0x0a4c1c00
decimal172760064
reverse dns0.28.76.10.in-addr.arpa
ipv4-mapped::ffff:a4c:1c00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.76.28.0/3110.76.28.0 – 10.76.28.110.76.28.1
210.76.28.2/3110.76.28.2 – 10.76.28.310.76.28.3
310.76.28.4/3110.76.28.4 – 10.76.28.510.76.28.5
410.76.28.6/3110.76.28.6 – 10.76.28.710.76.28.7
510.76.28.8/3110.76.28.8 – 10.76.28.910.76.28.9
610.76.28.10/3110.76.28.10 – 10.76.28.1110.76.28.11
710.76.28.12/3110.76.28.12 – 10.76.28.1310.76.28.13
810.76.28.14/3110.76.28.14 – 10.76.28.1510.76.28.15
910.76.28.16/3110.76.28.16 – 10.76.28.1710.76.28.17
1010.76.28.18/3110.76.28.18 – 10.76.28.1910.76.28.19
1110.76.28.20/3110.76.28.20 – 10.76.28.2110.76.28.21
1210.76.28.22/3110.76.28.22 – 10.76.28.2310.76.28.23
1310.76.28.24/3110.76.28.24 – 10.76.28.2510.76.28.25
1410.76.28.26/3110.76.28.26 – 10.76.28.2710.76.28.27
1510.76.28.28/3110.76.28.28 – 10.76.28.2910.76.28.29
1610.76.28.30/3110.76.28.30 – 10.76.28.3110.76.28.31
1710.76.28.32/3110.76.28.32 – 10.76.28.3310.76.28.33
1810.76.28.34/3110.76.28.34 – 10.76.28.3510.76.28.35
1910.76.28.36/3110.76.28.36 – 10.76.28.3710.76.28.37
2010.76.28.38/3110.76.28.38 – 10.76.28.3910.76.28.39
2110.76.28.40/3110.76.28.40 – 10.76.28.4110.76.28.41
2210.76.28.42/3110.76.28.42 – 10.76.28.4310.76.28.43
2310.76.28.44/3110.76.28.44 – 10.76.28.4510.76.28.45
2410.76.28.46/3110.76.28.46 – 10.76.28.4710.76.28.47
2510.76.28.48/3110.76.28.48 – 10.76.28.4910.76.28.49
2610.76.28.50/3110.76.28.50 – 10.76.28.5110.76.28.51
2710.76.28.52/3110.76.28.52 – 10.76.28.5310.76.28.53
2810.76.28.54/3110.76.28.54 – 10.76.28.5510.76.28.55
2910.76.28.56/3110.76.28.56 – 10.76.28.5710.76.28.57
3010.76.28.58/3110.76.28.58 – 10.76.28.5910.76.28.59
3110.76.28.60/3110.76.28.60 – 10.76.28.6110.76.28.61
3210.76.28.62/3110.76.28.62 – 10.76.28.6310.76.28.63
3310.76.28.64/3110.76.28.64 – 10.76.28.6510.76.28.65
3410.76.28.66/3110.76.28.66 – 10.76.28.6710.76.28.67
3510.76.28.68/3110.76.28.68 – 10.76.28.6910.76.28.69
3610.76.28.70/3110.76.28.70 – 10.76.28.7110.76.28.71
3710.76.28.72/3110.76.28.72 – 10.76.28.7310.76.28.73
3810.76.28.74/3110.76.28.74 – 10.76.28.7510.76.28.75
3910.76.28.76/3110.76.28.76 – 10.76.28.7710.76.28.77
4010.76.28.78/3110.76.28.78 – 10.76.28.7910.76.28.79
4110.76.28.80/3110.76.28.80 – 10.76.28.8110.76.28.81
4210.76.28.82/3110.76.28.82 – 10.76.28.8310.76.28.83
4310.76.28.84/3110.76.28.84 – 10.76.28.8510.76.28.85
4410.76.28.86/3110.76.28.86 – 10.76.28.8710.76.28.87
4510.76.28.88/3110.76.28.88 – 10.76.28.8910.76.28.89
4610.76.28.90/3110.76.28.90 – 10.76.28.9110.76.28.91
4710.76.28.92/3110.76.28.92 – 10.76.28.9310.76.28.93
4810.76.28.94/3110.76.28.94 – 10.76.28.9510.76.28.95
4910.76.28.96/3110.76.28.96 – 10.76.28.9710.76.28.97
5010.76.28.98/3110.76.28.98 – 10.76.28.9910.76.28.99
5110.76.28.100/3110.76.28.100 – 10.76.28.10110.76.28.101
5210.76.28.102/3110.76.28.102 – 10.76.28.10310.76.28.103
5310.76.28.104/3110.76.28.104 – 10.76.28.10510.76.28.105
5410.76.28.106/3110.76.28.106 – 10.76.28.10710.76.28.107
5510.76.28.108/3110.76.28.108 – 10.76.28.10910.76.28.109
5610.76.28.110/3110.76.28.110 – 10.76.28.11110.76.28.111
5710.76.28.112/3110.76.28.112 – 10.76.28.11310.76.28.113
5810.76.28.114/3110.76.28.114 – 10.76.28.11510.76.28.115
5910.76.28.116/3110.76.28.116 – 10.76.28.11710.76.28.117
6010.76.28.118/3110.76.28.118 – 10.76.28.11910.76.28.119
6110.76.28.120/3110.76.28.120 – 10.76.28.12110.76.28.121
6210.76.28.122/3110.76.28.122 – 10.76.28.12310.76.28.123
6310.76.28.124/3110.76.28.124 – 10.76.28.12510.76.28.125
6410.76.28.126/3110.76.28.126 – 10.76.28.12710.76.28.127
6510.76.28.128/3110.76.28.128 – 10.76.28.12910.76.28.129
6610.76.28.130/3110.76.28.130 – 10.76.28.13110.76.28.131
6710.76.28.132/3110.76.28.132 – 10.76.28.13310.76.28.133
6810.76.28.134/3110.76.28.134 – 10.76.28.13510.76.28.135
6910.76.28.136/3110.76.28.136 – 10.76.28.13710.76.28.137
7010.76.28.138/3110.76.28.138 – 10.76.28.13910.76.28.139
7110.76.28.140/3110.76.28.140 – 10.76.28.14110.76.28.141
7210.76.28.142/3110.76.28.142 – 10.76.28.14310.76.28.143
7310.76.28.144/3110.76.28.144 – 10.76.28.14510.76.28.145
7410.76.28.146/3110.76.28.146 – 10.76.28.14710.76.28.147
7510.76.28.148/3110.76.28.148 – 10.76.28.14910.76.28.149
7610.76.28.150/3110.76.28.150 – 10.76.28.15110.76.28.151
7710.76.28.152/3110.76.28.152 – 10.76.28.15310.76.28.153
7810.76.28.154/3110.76.28.154 – 10.76.28.15510.76.28.155
7910.76.28.156/3110.76.28.156 – 10.76.28.15710.76.28.157
8010.76.28.158/3110.76.28.158 – 10.76.28.15910.76.28.159
8110.76.28.160/3110.76.28.160 – 10.76.28.16110.76.28.161
8210.76.28.162/3110.76.28.162 – 10.76.28.16310.76.28.163
8310.76.28.164/3110.76.28.164 – 10.76.28.16510.76.28.165
8410.76.28.166/3110.76.28.166 – 10.76.28.16710.76.28.167
8510.76.28.168/3110.76.28.168 – 10.76.28.16910.76.28.169
8610.76.28.170/3110.76.28.170 – 10.76.28.17110.76.28.171
8710.76.28.172/3110.76.28.172 – 10.76.28.17310.76.28.173
8810.76.28.174/3110.76.28.174 – 10.76.28.17510.76.28.175
8910.76.28.176/3110.76.28.176 – 10.76.28.17710.76.28.177
9010.76.28.178/3110.76.28.178 – 10.76.28.17910.76.28.179
9110.76.28.180/3110.76.28.180 – 10.76.28.18110.76.28.181
9210.76.28.182/3110.76.28.182 – 10.76.28.18310.76.28.183
9310.76.28.184/3110.76.28.184 – 10.76.28.18510.76.28.185
9410.76.28.186/3110.76.28.186 – 10.76.28.18710.76.28.187
9510.76.28.188/3110.76.28.188 – 10.76.28.18910.76.28.189
9610.76.28.190/3110.76.28.190 – 10.76.28.19110.76.28.191
9710.76.28.192/3110.76.28.192 – 10.76.28.19310.76.28.193
9810.76.28.194/3110.76.28.194 – 10.76.28.19510.76.28.195
9910.76.28.196/3110.76.28.196 – 10.76.28.19710.76.28.197
10010.76.28.198/3110.76.28.198 – 10.76.28.19910.76.28.199
10110.76.28.200/3110.76.28.200 – 10.76.28.20110.76.28.201
10210.76.28.202/3110.76.28.202 – 10.76.28.20310.76.28.203
10310.76.28.204/3110.76.28.204 – 10.76.28.20510.76.28.205
10410.76.28.206/3110.76.28.206 – 10.76.28.20710.76.28.207
10510.76.28.208/3110.76.28.208 – 10.76.28.20910.76.28.209
10610.76.28.210/3110.76.28.210 – 10.76.28.21110.76.28.211
10710.76.28.212/3110.76.28.212 – 10.76.28.21310.76.28.213
10810.76.28.214/3110.76.28.214 – 10.76.28.21510.76.28.215
10910.76.28.216/3110.76.28.216 – 10.76.28.21710.76.28.217
11010.76.28.218/3110.76.28.218 – 10.76.28.21910.76.28.219
11110.76.28.220/3110.76.28.220 – 10.76.28.22110.76.28.221
11210.76.28.222/3110.76.28.222 – 10.76.28.22310.76.28.223
11310.76.28.224/3110.76.28.224 – 10.76.28.22510.76.28.225
11410.76.28.226/3110.76.28.226 – 10.76.28.22710.76.28.227
11510.76.28.228/3110.76.28.228 – 10.76.28.22910.76.28.229
11610.76.28.230/3110.76.28.230 – 10.76.28.23110.76.28.231
11710.76.28.232/3110.76.28.232 – 10.76.28.23310.76.28.233
11810.76.28.234/3110.76.28.234 – 10.76.28.23510.76.28.235
11910.76.28.236/3110.76.28.236 – 10.76.28.23710.76.28.237
12010.76.28.238/3110.76.28.238 – 10.76.28.23910.76.28.239
12110.76.28.240/3110.76.28.240 – 10.76.28.24110.76.28.241
12210.76.28.242/3110.76.28.242 – 10.76.28.24310.76.28.243
12310.76.28.244/3110.76.28.244 – 10.76.28.24510.76.28.245
12410.76.28.246/3110.76.28.246 – 10.76.28.24710.76.28.247
12510.76.28.248/3110.76.28.248 – 10.76.28.24910.76.28.249
12610.76.28.250/3110.76.28.250 – 10.76.28.25110.76.28.251
12710.76.28.252/3110.76.28.252 – 10.76.28.25310.76.28.253
12810.76.28.254/3110.76.28.254 – 10.76.28.25510.76.28.255
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 →