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)10.45.158.0/24
network10.45.158.0/24
broadcast10.45.158.255
first host10.45.158.1
last host10.45.158.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.45.158.0/24
address00001010.00101101.10011110.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.00101101.10011110.00000000
broadcast00001010.00101101.10011110.11111111
green = network part, grey = host part
hex0x0a2d9e00
decimal170761728
reverse dns0.158.45.10.in-addr.arpa
ipv4-mapped::ffff:a2d:9e00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.45.158.0/3110.45.158.0 – 10.45.158.110.45.158.1
210.45.158.2/3110.45.158.2 – 10.45.158.310.45.158.3
310.45.158.4/3110.45.158.4 – 10.45.158.510.45.158.5
410.45.158.6/3110.45.158.6 – 10.45.158.710.45.158.7
510.45.158.8/3110.45.158.8 – 10.45.158.910.45.158.9
610.45.158.10/3110.45.158.10 – 10.45.158.1110.45.158.11
710.45.158.12/3110.45.158.12 – 10.45.158.1310.45.158.13
810.45.158.14/3110.45.158.14 – 10.45.158.1510.45.158.15
910.45.158.16/3110.45.158.16 – 10.45.158.1710.45.158.17
1010.45.158.18/3110.45.158.18 – 10.45.158.1910.45.158.19
1110.45.158.20/3110.45.158.20 – 10.45.158.2110.45.158.21
1210.45.158.22/3110.45.158.22 – 10.45.158.2310.45.158.23
1310.45.158.24/3110.45.158.24 – 10.45.158.2510.45.158.25
1410.45.158.26/3110.45.158.26 – 10.45.158.2710.45.158.27
1510.45.158.28/3110.45.158.28 – 10.45.158.2910.45.158.29
1610.45.158.30/3110.45.158.30 – 10.45.158.3110.45.158.31
1710.45.158.32/3110.45.158.32 – 10.45.158.3310.45.158.33
1810.45.158.34/3110.45.158.34 – 10.45.158.3510.45.158.35
1910.45.158.36/3110.45.158.36 – 10.45.158.3710.45.158.37
2010.45.158.38/3110.45.158.38 – 10.45.158.3910.45.158.39
2110.45.158.40/3110.45.158.40 – 10.45.158.4110.45.158.41
2210.45.158.42/3110.45.158.42 – 10.45.158.4310.45.158.43
2310.45.158.44/3110.45.158.44 – 10.45.158.4510.45.158.45
2410.45.158.46/3110.45.158.46 – 10.45.158.4710.45.158.47
2510.45.158.48/3110.45.158.48 – 10.45.158.4910.45.158.49
2610.45.158.50/3110.45.158.50 – 10.45.158.5110.45.158.51
2710.45.158.52/3110.45.158.52 – 10.45.158.5310.45.158.53
2810.45.158.54/3110.45.158.54 – 10.45.158.5510.45.158.55
2910.45.158.56/3110.45.158.56 – 10.45.158.5710.45.158.57
3010.45.158.58/3110.45.158.58 – 10.45.158.5910.45.158.59
3110.45.158.60/3110.45.158.60 – 10.45.158.6110.45.158.61
3210.45.158.62/3110.45.158.62 – 10.45.158.6310.45.158.63
3310.45.158.64/3110.45.158.64 – 10.45.158.6510.45.158.65
3410.45.158.66/3110.45.158.66 – 10.45.158.6710.45.158.67
3510.45.158.68/3110.45.158.68 – 10.45.158.6910.45.158.69
3610.45.158.70/3110.45.158.70 – 10.45.158.7110.45.158.71
3710.45.158.72/3110.45.158.72 – 10.45.158.7310.45.158.73
3810.45.158.74/3110.45.158.74 – 10.45.158.7510.45.158.75
3910.45.158.76/3110.45.158.76 – 10.45.158.7710.45.158.77
4010.45.158.78/3110.45.158.78 – 10.45.158.7910.45.158.79
4110.45.158.80/3110.45.158.80 – 10.45.158.8110.45.158.81
4210.45.158.82/3110.45.158.82 – 10.45.158.8310.45.158.83
4310.45.158.84/3110.45.158.84 – 10.45.158.8510.45.158.85
4410.45.158.86/3110.45.158.86 – 10.45.158.8710.45.158.87
4510.45.158.88/3110.45.158.88 – 10.45.158.8910.45.158.89
4610.45.158.90/3110.45.158.90 – 10.45.158.9110.45.158.91
4710.45.158.92/3110.45.158.92 – 10.45.158.9310.45.158.93
4810.45.158.94/3110.45.158.94 – 10.45.158.9510.45.158.95
4910.45.158.96/3110.45.158.96 – 10.45.158.9710.45.158.97
5010.45.158.98/3110.45.158.98 – 10.45.158.9910.45.158.99
5110.45.158.100/3110.45.158.100 – 10.45.158.10110.45.158.101
5210.45.158.102/3110.45.158.102 – 10.45.158.10310.45.158.103
5310.45.158.104/3110.45.158.104 – 10.45.158.10510.45.158.105
5410.45.158.106/3110.45.158.106 – 10.45.158.10710.45.158.107
5510.45.158.108/3110.45.158.108 – 10.45.158.10910.45.158.109
5610.45.158.110/3110.45.158.110 – 10.45.158.11110.45.158.111
5710.45.158.112/3110.45.158.112 – 10.45.158.11310.45.158.113
5810.45.158.114/3110.45.158.114 – 10.45.158.11510.45.158.115
5910.45.158.116/3110.45.158.116 – 10.45.158.11710.45.158.117
6010.45.158.118/3110.45.158.118 – 10.45.158.11910.45.158.119
6110.45.158.120/3110.45.158.120 – 10.45.158.12110.45.158.121
6210.45.158.122/3110.45.158.122 – 10.45.158.12310.45.158.123
6310.45.158.124/3110.45.158.124 – 10.45.158.12510.45.158.125
6410.45.158.126/3110.45.158.126 – 10.45.158.12710.45.158.127
6510.45.158.128/3110.45.158.128 – 10.45.158.12910.45.158.129
6610.45.158.130/3110.45.158.130 – 10.45.158.13110.45.158.131
6710.45.158.132/3110.45.158.132 – 10.45.158.13310.45.158.133
6810.45.158.134/3110.45.158.134 – 10.45.158.13510.45.158.135
6910.45.158.136/3110.45.158.136 – 10.45.158.13710.45.158.137
7010.45.158.138/3110.45.158.138 – 10.45.158.13910.45.158.139
7110.45.158.140/3110.45.158.140 – 10.45.158.14110.45.158.141
7210.45.158.142/3110.45.158.142 – 10.45.158.14310.45.158.143
7310.45.158.144/3110.45.158.144 – 10.45.158.14510.45.158.145
7410.45.158.146/3110.45.158.146 – 10.45.158.14710.45.158.147
7510.45.158.148/3110.45.158.148 – 10.45.158.14910.45.158.149
7610.45.158.150/3110.45.158.150 – 10.45.158.15110.45.158.151
7710.45.158.152/3110.45.158.152 – 10.45.158.15310.45.158.153
7810.45.158.154/3110.45.158.154 – 10.45.158.15510.45.158.155
7910.45.158.156/3110.45.158.156 – 10.45.158.15710.45.158.157
8010.45.158.158/3110.45.158.158 – 10.45.158.15910.45.158.159
8110.45.158.160/3110.45.158.160 – 10.45.158.16110.45.158.161
8210.45.158.162/3110.45.158.162 – 10.45.158.16310.45.158.163
8310.45.158.164/3110.45.158.164 – 10.45.158.16510.45.158.165
8410.45.158.166/3110.45.158.166 – 10.45.158.16710.45.158.167
8510.45.158.168/3110.45.158.168 – 10.45.158.16910.45.158.169
8610.45.158.170/3110.45.158.170 – 10.45.158.17110.45.158.171
8710.45.158.172/3110.45.158.172 – 10.45.158.17310.45.158.173
8810.45.158.174/3110.45.158.174 – 10.45.158.17510.45.158.175
8910.45.158.176/3110.45.158.176 – 10.45.158.17710.45.158.177
9010.45.158.178/3110.45.158.178 – 10.45.158.17910.45.158.179
9110.45.158.180/3110.45.158.180 – 10.45.158.18110.45.158.181
9210.45.158.182/3110.45.158.182 – 10.45.158.18310.45.158.183
9310.45.158.184/3110.45.158.184 – 10.45.158.18510.45.158.185
9410.45.158.186/3110.45.158.186 – 10.45.158.18710.45.158.187
9510.45.158.188/3110.45.158.188 – 10.45.158.18910.45.158.189
9610.45.158.190/3110.45.158.190 – 10.45.158.19110.45.158.191
9710.45.158.192/3110.45.158.192 – 10.45.158.19310.45.158.193
9810.45.158.194/3110.45.158.194 – 10.45.158.19510.45.158.195
9910.45.158.196/3110.45.158.196 – 10.45.158.19710.45.158.197
10010.45.158.198/3110.45.158.198 – 10.45.158.19910.45.158.199
10110.45.158.200/3110.45.158.200 – 10.45.158.20110.45.158.201
10210.45.158.202/3110.45.158.202 – 10.45.158.20310.45.158.203
10310.45.158.204/3110.45.158.204 – 10.45.158.20510.45.158.205
10410.45.158.206/3110.45.158.206 – 10.45.158.20710.45.158.207
10510.45.158.208/3110.45.158.208 – 10.45.158.20910.45.158.209
10610.45.158.210/3110.45.158.210 – 10.45.158.21110.45.158.211
10710.45.158.212/3110.45.158.212 – 10.45.158.21310.45.158.213
10810.45.158.214/3110.45.158.214 – 10.45.158.21510.45.158.215
10910.45.158.216/3110.45.158.216 – 10.45.158.21710.45.158.217
11010.45.158.218/3110.45.158.218 – 10.45.158.21910.45.158.219
11110.45.158.220/3110.45.158.220 – 10.45.158.22110.45.158.221
11210.45.158.222/3110.45.158.222 – 10.45.158.22310.45.158.223
11310.45.158.224/3110.45.158.224 – 10.45.158.22510.45.158.225
11410.45.158.226/3110.45.158.226 – 10.45.158.22710.45.158.227
11510.45.158.228/3110.45.158.228 – 10.45.158.22910.45.158.229
11610.45.158.230/3110.45.158.230 – 10.45.158.23110.45.158.231
11710.45.158.232/3110.45.158.232 – 10.45.158.23310.45.158.233
11810.45.158.234/3110.45.158.234 – 10.45.158.23510.45.158.235
11910.45.158.236/3110.45.158.236 – 10.45.158.23710.45.158.237
12010.45.158.238/3110.45.158.238 – 10.45.158.23910.45.158.239
12110.45.158.240/3110.45.158.240 – 10.45.158.24110.45.158.241
12210.45.158.242/3110.45.158.242 – 10.45.158.24310.45.158.243
12310.45.158.244/3110.45.158.244 – 10.45.158.24510.45.158.245
12410.45.158.246/3110.45.158.246 – 10.45.158.24710.45.158.247
12510.45.158.248/3110.45.158.248 – 10.45.158.24910.45.158.249
12610.45.158.250/3110.45.158.250 – 10.45.158.25110.45.158.251
12710.45.158.252/3110.45.158.252 – 10.45.158.25310.45.158.253
12810.45.158.254/3110.45.158.254 – 10.45.158.25510.45.158.255
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 →