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)10.45.22.0/24
network10.45.22.0/24
broadcast10.45.22.255
first host10.45.22.1
last host10.45.22.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.45.22.0/24
address00001010.00101101.00010110.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.00101101.00010110.00000000
broadcast00001010.00101101.00010110.11111111
green = network part, grey = host part
hex0x0a2d1600
decimal170726912
reverse dns0.22.45.10.in-addr.arpa
ipv4-mapped::ffff:a2d:1600

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.45.22.0/3110.45.22.0 – 10.45.22.110.45.22.1
210.45.22.2/3110.45.22.2 – 10.45.22.310.45.22.3
310.45.22.4/3110.45.22.4 – 10.45.22.510.45.22.5
410.45.22.6/3110.45.22.6 – 10.45.22.710.45.22.7
510.45.22.8/3110.45.22.8 – 10.45.22.910.45.22.9
610.45.22.10/3110.45.22.10 – 10.45.22.1110.45.22.11
710.45.22.12/3110.45.22.12 – 10.45.22.1310.45.22.13
810.45.22.14/3110.45.22.14 – 10.45.22.1510.45.22.15
910.45.22.16/3110.45.22.16 – 10.45.22.1710.45.22.17
1010.45.22.18/3110.45.22.18 – 10.45.22.1910.45.22.19
1110.45.22.20/3110.45.22.20 – 10.45.22.2110.45.22.21
1210.45.22.22/3110.45.22.22 – 10.45.22.2310.45.22.23
1310.45.22.24/3110.45.22.24 – 10.45.22.2510.45.22.25
1410.45.22.26/3110.45.22.26 – 10.45.22.2710.45.22.27
1510.45.22.28/3110.45.22.28 – 10.45.22.2910.45.22.29
1610.45.22.30/3110.45.22.30 – 10.45.22.3110.45.22.31
1710.45.22.32/3110.45.22.32 – 10.45.22.3310.45.22.33
1810.45.22.34/3110.45.22.34 – 10.45.22.3510.45.22.35
1910.45.22.36/3110.45.22.36 – 10.45.22.3710.45.22.37
2010.45.22.38/3110.45.22.38 – 10.45.22.3910.45.22.39
2110.45.22.40/3110.45.22.40 – 10.45.22.4110.45.22.41
2210.45.22.42/3110.45.22.42 – 10.45.22.4310.45.22.43
2310.45.22.44/3110.45.22.44 – 10.45.22.4510.45.22.45
2410.45.22.46/3110.45.22.46 – 10.45.22.4710.45.22.47
2510.45.22.48/3110.45.22.48 – 10.45.22.4910.45.22.49
2610.45.22.50/3110.45.22.50 – 10.45.22.5110.45.22.51
2710.45.22.52/3110.45.22.52 – 10.45.22.5310.45.22.53
2810.45.22.54/3110.45.22.54 – 10.45.22.5510.45.22.55
2910.45.22.56/3110.45.22.56 – 10.45.22.5710.45.22.57
3010.45.22.58/3110.45.22.58 – 10.45.22.5910.45.22.59
3110.45.22.60/3110.45.22.60 – 10.45.22.6110.45.22.61
3210.45.22.62/3110.45.22.62 – 10.45.22.6310.45.22.63
3310.45.22.64/3110.45.22.64 – 10.45.22.6510.45.22.65
3410.45.22.66/3110.45.22.66 – 10.45.22.6710.45.22.67
3510.45.22.68/3110.45.22.68 – 10.45.22.6910.45.22.69
3610.45.22.70/3110.45.22.70 – 10.45.22.7110.45.22.71
3710.45.22.72/3110.45.22.72 – 10.45.22.7310.45.22.73
3810.45.22.74/3110.45.22.74 – 10.45.22.7510.45.22.75
3910.45.22.76/3110.45.22.76 – 10.45.22.7710.45.22.77
4010.45.22.78/3110.45.22.78 – 10.45.22.7910.45.22.79
4110.45.22.80/3110.45.22.80 – 10.45.22.8110.45.22.81
4210.45.22.82/3110.45.22.82 – 10.45.22.8310.45.22.83
4310.45.22.84/3110.45.22.84 – 10.45.22.8510.45.22.85
4410.45.22.86/3110.45.22.86 – 10.45.22.8710.45.22.87
4510.45.22.88/3110.45.22.88 – 10.45.22.8910.45.22.89
4610.45.22.90/3110.45.22.90 – 10.45.22.9110.45.22.91
4710.45.22.92/3110.45.22.92 – 10.45.22.9310.45.22.93
4810.45.22.94/3110.45.22.94 – 10.45.22.9510.45.22.95
4910.45.22.96/3110.45.22.96 – 10.45.22.9710.45.22.97
5010.45.22.98/3110.45.22.98 – 10.45.22.9910.45.22.99
5110.45.22.100/3110.45.22.100 – 10.45.22.10110.45.22.101
5210.45.22.102/3110.45.22.102 – 10.45.22.10310.45.22.103
5310.45.22.104/3110.45.22.104 – 10.45.22.10510.45.22.105
5410.45.22.106/3110.45.22.106 – 10.45.22.10710.45.22.107
5510.45.22.108/3110.45.22.108 – 10.45.22.10910.45.22.109
5610.45.22.110/3110.45.22.110 – 10.45.22.11110.45.22.111
5710.45.22.112/3110.45.22.112 – 10.45.22.11310.45.22.113
5810.45.22.114/3110.45.22.114 – 10.45.22.11510.45.22.115
5910.45.22.116/3110.45.22.116 – 10.45.22.11710.45.22.117
6010.45.22.118/3110.45.22.118 – 10.45.22.11910.45.22.119
6110.45.22.120/3110.45.22.120 – 10.45.22.12110.45.22.121
6210.45.22.122/3110.45.22.122 – 10.45.22.12310.45.22.123
6310.45.22.124/3110.45.22.124 – 10.45.22.12510.45.22.125
6410.45.22.126/3110.45.22.126 – 10.45.22.12710.45.22.127
6510.45.22.128/3110.45.22.128 – 10.45.22.12910.45.22.129
6610.45.22.130/3110.45.22.130 – 10.45.22.13110.45.22.131
6710.45.22.132/3110.45.22.132 – 10.45.22.13310.45.22.133
6810.45.22.134/3110.45.22.134 – 10.45.22.13510.45.22.135
6910.45.22.136/3110.45.22.136 – 10.45.22.13710.45.22.137
7010.45.22.138/3110.45.22.138 – 10.45.22.13910.45.22.139
7110.45.22.140/3110.45.22.140 – 10.45.22.14110.45.22.141
7210.45.22.142/3110.45.22.142 – 10.45.22.14310.45.22.143
7310.45.22.144/3110.45.22.144 – 10.45.22.14510.45.22.145
7410.45.22.146/3110.45.22.146 – 10.45.22.14710.45.22.147
7510.45.22.148/3110.45.22.148 – 10.45.22.14910.45.22.149
7610.45.22.150/3110.45.22.150 – 10.45.22.15110.45.22.151
7710.45.22.152/3110.45.22.152 – 10.45.22.15310.45.22.153
7810.45.22.154/3110.45.22.154 – 10.45.22.15510.45.22.155
7910.45.22.156/3110.45.22.156 – 10.45.22.15710.45.22.157
8010.45.22.158/3110.45.22.158 – 10.45.22.15910.45.22.159
8110.45.22.160/3110.45.22.160 – 10.45.22.16110.45.22.161
8210.45.22.162/3110.45.22.162 – 10.45.22.16310.45.22.163
8310.45.22.164/3110.45.22.164 – 10.45.22.16510.45.22.165
8410.45.22.166/3110.45.22.166 – 10.45.22.16710.45.22.167
8510.45.22.168/3110.45.22.168 – 10.45.22.16910.45.22.169
8610.45.22.170/3110.45.22.170 – 10.45.22.17110.45.22.171
8710.45.22.172/3110.45.22.172 – 10.45.22.17310.45.22.173
8810.45.22.174/3110.45.22.174 – 10.45.22.17510.45.22.175
8910.45.22.176/3110.45.22.176 – 10.45.22.17710.45.22.177
9010.45.22.178/3110.45.22.178 – 10.45.22.17910.45.22.179
9110.45.22.180/3110.45.22.180 – 10.45.22.18110.45.22.181
9210.45.22.182/3110.45.22.182 – 10.45.22.18310.45.22.183
9310.45.22.184/3110.45.22.184 – 10.45.22.18510.45.22.185
9410.45.22.186/3110.45.22.186 – 10.45.22.18710.45.22.187
9510.45.22.188/3110.45.22.188 – 10.45.22.18910.45.22.189
9610.45.22.190/3110.45.22.190 – 10.45.22.19110.45.22.191
9710.45.22.192/3110.45.22.192 – 10.45.22.19310.45.22.193
9810.45.22.194/3110.45.22.194 – 10.45.22.19510.45.22.195
9910.45.22.196/3110.45.22.196 – 10.45.22.19710.45.22.197
10010.45.22.198/3110.45.22.198 – 10.45.22.19910.45.22.199
10110.45.22.200/3110.45.22.200 – 10.45.22.20110.45.22.201
10210.45.22.202/3110.45.22.202 – 10.45.22.20310.45.22.203
10310.45.22.204/3110.45.22.204 – 10.45.22.20510.45.22.205
10410.45.22.206/3110.45.22.206 – 10.45.22.20710.45.22.207
10510.45.22.208/3110.45.22.208 – 10.45.22.20910.45.22.209
10610.45.22.210/3110.45.22.210 – 10.45.22.21110.45.22.211
10710.45.22.212/3110.45.22.212 – 10.45.22.21310.45.22.213
10810.45.22.214/3110.45.22.214 – 10.45.22.21510.45.22.215
10910.45.22.216/3110.45.22.216 – 10.45.22.21710.45.22.217
11010.45.22.218/3110.45.22.218 – 10.45.22.21910.45.22.219
11110.45.22.220/3110.45.22.220 – 10.45.22.22110.45.22.221
11210.45.22.222/3110.45.22.222 – 10.45.22.22310.45.22.223
11310.45.22.224/3110.45.22.224 – 10.45.22.22510.45.22.225
11410.45.22.226/3110.45.22.226 – 10.45.22.22710.45.22.227
11510.45.22.228/3110.45.22.228 – 10.45.22.22910.45.22.229
11610.45.22.230/3110.45.22.230 – 10.45.22.23110.45.22.231
11710.45.22.232/3110.45.22.232 – 10.45.22.23310.45.22.233
11810.45.22.234/3110.45.22.234 – 10.45.22.23510.45.22.235
11910.45.22.236/3110.45.22.236 – 10.45.22.23710.45.22.237
12010.45.22.238/3110.45.22.238 – 10.45.22.23910.45.22.239
12110.45.22.240/3110.45.22.240 – 10.45.22.24110.45.22.241
12210.45.22.242/3110.45.22.242 – 10.45.22.24310.45.22.243
12310.45.22.244/3110.45.22.244 – 10.45.22.24510.45.22.245
12410.45.22.246/3110.45.22.246 – 10.45.22.24710.45.22.247
12510.45.22.248/3110.45.22.248 – 10.45.22.24910.45.22.249
12610.45.22.250/3110.45.22.250 – 10.45.22.25110.45.22.251
12710.45.22.252/3110.45.22.252 – 10.45.22.25310.45.22.253
12810.45.22.254/3110.45.22.254 – 10.45.22.25510.45.22.255
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 →