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)10.0.142.0/24
network10.0.142.0/24
broadcast10.0.142.255
first host10.0.142.1
last host10.0.142.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.0.142.0/24
address00001010.00000000.10001110.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.00000000.10001110.00000000
broadcast00001010.00000000.10001110.11111111
green = network part, grey = host part
hex0x0a008e00
decimal167808512
reverse dns0.142.0.10.in-addr.arpa
ipv4-mapped::ffff:a00:8e00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.0.142.0/3110.0.142.0 – 10.0.142.110.0.142.1
210.0.142.2/3110.0.142.2 – 10.0.142.310.0.142.3
310.0.142.4/3110.0.142.4 – 10.0.142.510.0.142.5
410.0.142.6/3110.0.142.6 – 10.0.142.710.0.142.7
510.0.142.8/3110.0.142.8 – 10.0.142.910.0.142.9
610.0.142.10/3110.0.142.10 – 10.0.142.1110.0.142.11
710.0.142.12/3110.0.142.12 – 10.0.142.1310.0.142.13
810.0.142.14/3110.0.142.14 – 10.0.142.1510.0.142.15
910.0.142.16/3110.0.142.16 – 10.0.142.1710.0.142.17
1010.0.142.18/3110.0.142.18 – 10.0.142.1910.0.142.19
1110.0.142.20/3110.0.142.20 – 10.0.142.2110.0.142.21
1210.0.142.22/3110.0.142.22 – 10.0.142.2310.0.142.23
1310.0.142.24/3110.0.142.24 – 10.0.142.2510.0.142.25
1410.0.142.26/3110.0.142.26 – 10.0.142.2710.0.142.27
1510.0.142.28/3110.0.142.28 – 10.0.142.2910.0.142.29
1610.0.142.30/3110.0.142.30 – 10.0.142.3110.0.142.31
1710.0.142.32/3110.0.142.32 – 10.0.142.3310.0.142.33
1810.0.142.34/3110.0.142.34 – 10.0.142.3510.0.142.35
1910.0.142.36/3110.0.142.36 – 10.0.142.3710.0.142.37
2010.0.142.38/3110.0.142.38 – 10.0.142.3910.0.142.39
2110.0.142.40/3110.0.142.40 – 10.0.142.4110.0.142.41
2210.0.142.42/3110.0.142.42 – 10.0.142.4310.0.142.43
2310.0.142.44/3110.0.142.44 – 10.0.142.4510.0.142.45
2410.0.142.46/3110.0.142.46 – 10.0.142.4710.0.142.47
2510.0.142.48/3110.0.142.48 – 10.0.142.4910.0.142.49
2610.0.142.50/3110.0.142.50 – 10.0.142.5110.0.142.51
2710.0.142.52/3110.0.142.52 – 10.0.142.5310.0.142.53
2810.0.142.54/3110.0.142.54 – 10.0.142.5510.0.142.55
2910.0.142.56/3110.0.142.56 – 10.0.142.5710.0.142.57
3010.0.142.58/3110.0.142.58 – 10.0.142.5910.0.142.59
3110.0.142.60/3110.0.142.60 – 10.0.142.6110.0.142.61
3210.0.142.62/3110.0.142.62 – 10.0.142.6310.0.142.63
3310.0.142.64/3110.0.142.64 – 10.0.142.6510.0.142.65
3410.0.142.66/3110.0.142.66 – 10.0.142.6710.0.142.67
3510.0.142.68/3110.0.142.68 – 10.0.142.6910.0.142.69
3610.0.142.70/3110.0.142.70 – 10.0.142.7110.0.142.71
3710.0.142.72/3110.0.142.72 – 10.0.142.7310.0.142.73
3810.0.142.74/3110.0.142.74 – 10.0.142.7510.0.142.75
3910.0.142.76/3110.0.142.76 – 10.0.142.7710.0.142.77
4010.0.142.78/3110.0.142.78 – 10.0.142.7910.0.142.79
4110.0.142.80/3110.0.142.80 – 10.0.142.8110.0.142.81
4210.0.142.82/3110.0.142.82 – 10.0.142.8310.0.142.83
4310.0.142.84/3110.0.142.84 – 10.0.142.8510.0.142.85
4410.0.142.86/3110.0.142.86 – 10.0.142.8710.0.142.87
4510.0.142.88/3110.0.142.88 – 10.0.142.8910.0.142.89
4610.0.142.90/3110.0.142.90 – 10.0.142.9110.0.142.91
4710.0.142.92/3110.0.142.92 – 10.0.142.9310.0.142.93
4810.0.142.94/3110.0.142.94 – 10.0.142.9510.0.142.95
4910.0.142.96/3110.0.142.96 – 10.0.142.9710.0.142.97
5010.0.142.98/3110.0.142.98 – 10.0.142.9910.0.142.99
5110.0.142.100/3110.0.142.100 – 10.0.142.10110.0.142.101
5210.0.142.102/3110.0.142.102 – 10.0.142.10310.0.142.103
5310.0.142.104/3110.0.142.104 – 10.0.142.10510.0.142.105
5410.0.142.106/3110.0.142.106 – 10.0.142.10710.0.142.107
5510.0.142.108/3110.0.142.108 – 10.0.142.10910.0.142.109
5610.0.142.110/3110.0.142.110 – 10.0.142.11110.0.142.111
5710.0.142.112/3110.0.142.112 – 10.0.142.11310.0.142.113
5810.0.142.114/3110.0.142.114 – 10.0.142.11510.0.142.115
5910.0.142.116/3110.0.142.116 – 10.0.142.11710.0.142.117
6010.0.142.118/3110.0.142.118 – 10.0.142.11910.0.142.119
6110.0.142.120/3110.0.142.120 – 10.0.142.12110.0.142.121
6210.0.142.122/3110.0.142.122 – 10.0.142.12310.0.142.123
6310.0.142.124/3110.0.142.124 – 10.0.142.12510.0.142.125
6410.0.142.126/3110.0.142.126 – 10.0.142.12710.0.142.127
6510.0.142.128/3110.0.142.128 – 10.0.142.12910.0.142.129
6610.0.142.130/3110.0.142.130 – 10.0.142.13110.0.142.131
6710.0.142.132/3110.0.142.132 – 10.0.142.13310.0.142.133
6810.0.142.134/3110.0.142.134 – 10.0.142.13510.0.142.135
6910.0.142.136/3110.0.142.136 – 10.0.142.13710.0.142.137
7010.0.142.138/3110.0.142.138 – 10.0.142.13910.0.142.139
7110.0.142.140/3110.0.142.140 – 10.0.142.14110.0.142.141
7210.0.142.142/3110.0.142.142 – 10.0.142.14310.0.142.143
7310.0.142.144/3110.0.142.144 – 10.0.142.14510.0.142.145
7410.0.142.146/3110.0.142.146 – 10.0.142.14710.0.142.147
7510.0.142.148/3110.0.142.148 – 10.0.142.14910.0.142.149
7610.0.142.150/3110.0.142.150 – 10.0.142.15110.0.142.151
7710.0.142.152/3110.0.142.152 – 10.0.142.15310.0.142.153
7810.0.142.154/3110.0.142.154 – 10.0.142.15510.0.142.155
7910.0.142.156/3110.0.142.156 – 10.0.142.15710.0.142.157
8010.0.142.158/3110.0.142.158 – 10.0.142.15910.0.142.159
8110.0.142.160/3110.0.142.160 – 10.0.142.16110.0.142.161
8210.0.142.162/3110.0.142.162 – 10.0.142.16310.0.142.163
8310.0.142.164/3110.0.142.164 – 10.0.142.16510.0.142.165
8410.0.142.166/3110.0.142.166 – 10.0.142.16710.0.142.167
8510.0.142.168/3110.0.142.168 – 10.0.142.16910.0.142.169
8610.0.142.170/3110.0.142.170 – 10.0.142.17110.0.142.171
8710.0.142.172/3110.0.142.172 – 10.0.142.17310.0.142.173
8810.0.142.174/3110.0.142.174 – 10.0.142.17510.0.142.175
8910.0.142.176/3110.0.142.176 – 10.0.142.17710.0.142.177
9010.0.142.178/3110.0.142.178 – 10.0.142.17910.0.142.179
9110.0.142.180/3110.0.142.180 – 10.0.142.18110.0.142.181
9210.0.142.182/3110.0.142.182 – 10.0.142.18310.0.142.183
9310.0.142.184/3110.0.142.184 – 10.0.142.18510.0.142.185
9410.0.142.186/3110.0.142.186 – 10.0.142.18710.0.142.187
9510.0.142.188/3110.0.142.188 – 10.0.142.18910.0.142.189
9610.0.142.190/3110.0.142.190 – 10.0.142.19110.0.142.191
9710.0.142.192/3110.0.142.192 – 10.0.142.19310.0.142.193
9810.0.142.194/3110.0.142.194 – 10.0.142.19510.0.142.195
9910.0.142.196/3110.0.142.196 – 10.0.142.19710.0.142.197
10010.0.142.198/3110.0.142.198 – 10.0.142.19910.0.142.199
10110.0.142.200/3110.0.142.200 – 10.0.142.20110.0.142.201
10210.0.142.202/3110.0.142.202 – 10.0.142.20310.0.142.203
10310.0.142.204/3110.0.142.204 – 10.0.142.20510.0.142.205
10410.0.142.206/3110.0.142.206 – 10.0.142.20710.0.142.207
10510.0.142.208/3110.0.142.208 – 10.0.142.20910.0.142.209
10610.0.142.210/3110.0.142.210 – 10.0.142.21110.0.142.211
10710.0.142.212/3110.0.142.212 – 10.0.142.21310.0.142.213
10810.0.142.214/3110.0.142.214 – 10.0.142.21510.0.142.215
10910.0.142.216/3110.0.142.216 – 10.0.142.21710.0.142.217
11010.0.142.218/3110.0.142.218 – 10.0.142.21910.0.142.219
11110.0.142.220/3110.0.142.220 – 10.0.142.22110.0.142.221
11210.0.142.222/3110.0.142.222 – 10.0.142.22310.0.142.223
11310.0.142.224/3110.0.142.224 – 10.0.142.22510.0.142.225
11410.0.142.226/3110.0.142.226 – 10.0.142.22710.0.142.227
11510.0.142.228/3110.0.142.228 – 10.0.142.22910.0.142.229
11610.0.142.230/3110.0.142.230 – 10.0.142.23110.0.142.231
11710.0.142.232/3110.0.142.232 – 10.0.142.23310.0.142.233
11810.0.142.234/3110.0.142.234 – 10.0.142.23510.0.142.235
11910.0.142.236/3110.0.142.236 – 10.0.142.23710.0.142.237
12010.0.142.238/3110.0.142.238 – 10.0.142.23910.0.142.239
12110.0.142.240/3110.0.142.240 – 10.0.142.24110.0.142.241
12210.0.142.242/3110.0.142.242 – 10.0.142.24310.0.142.243
12310.0.142.244/3110.0.142.244 – 10.0.142.24510.0.142.245
12410.0.142.246/3110.0.142.246 – 10.0.142.24710.0.142.247
12510.0.142.248/3110.0.142.248 – 10.0.142.24910.0.142.249
12610.0.142.250/3110.0.142.250 – 10.0.142.25110.0.142.251
12710.0.142.252/3110.0.142.252 – 10.0.142.25310.0.142.253
12810.0.142.254/3110.0.142.254 – 10.0.142.25510.0.142.255
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 →