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)10.78.150.0/23
network10.78.150.0/23
broadcast10.78.151.255
first host10.78.150.1
last host10.78.151.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.78.150.0/23
address00001010.01001110.10010110.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.01001110.10010110.00000000
broadcast00001010.01001110.10010111.11111111
green = network part, grey = host part
hex0x0a4e9600
decimal172922368
reverse dns0.150.78.10.in-addr.arpa
ipv4-mapped::ffff:a4e:9600

/23 split into /30 · 128 subnets

close ×
#networkhost rangebroadcast
110.78.150.0/3010.78.150.1 – 10.78.150.210.78.150.3
210.78.150.4/3010.78.150.5 – 10.78.150.610.78.150.7
310.78.150.8/3010.78.150.9 – 10.78.150.1010.78.150.11
410.78.150.12/3010.78.150.13 – 10.78.150.1410.78.150.15
510.78.150.16/3010.78.150.17 – 10.78.150.1810.78.150.19
610.78.150.20/3010.78.150.21 – 10.78.150.2210.78.150.23
710.78.150.24/3010.78.150.25 – 10.78.150.2610.78.150.27
810.78.150.28/3010.78.150.29 – 10.78.150.3010.78.150.31
910.78.150.32/3010.78.150.33 – 10.78.150.3410.78.150.35
1010.78.150.36/3010.78.150.37 – 10.78.150.3810.78.150.39
1110.78.150.40/3010.78.150.41 – 10.78.150.4210.78.150.43
1210.78.150.44/3010.78.150.45 – 10.78.150.4610.78.150.47
1310.78.150.48/3010.78.150.49 – 10.78.150.5010.78.150.51
1410.78.150.52/3010.78.150.53 – 10.78.150.5410.78.150.55
1510.78.150.56/3010.78.150.57 – 10.78.150.5810.78.150.59
1610.78.150.60/3010.78.150.61 – 10.78.150.6210.78.150.63
1710.78.150.64/3010.78.150.65 – 10.78.150.6610.78.150.67
1810.78.150.68/3010.78.150.69 – 10.78.150.7010.78.150.71
1910.78.150.72/3010.78.150.73 – 10.78.150.7410.78.150.75
2010.78.150.76/3010.78.150.77 – 10.78.150.7810.78.150.79
2110.78.150.80/3010.78.150.81 – 10.78.150.8210.78.150.83
2210.78.150.84/3010.78.150.85 – 10.78.150.8610.78.150.87
2310.78.150.88/3010.78.150.89 – 10.78.150.9010.78.150.91
2410.78.150.92/3010.78.150.93 – 10.78.150.9410.78.150.95
2510.78.150.96/3010.78.150.97 – 10.78.150.9810.78.150.99
2610.78.150.100/3010.78.150.101 – 10.78.150.10210.78.150.103
2710.78.150.104/3010.78.150.105 – 10.78.150.10610.78.150.107
2810.78.150.108/3010.78.150.109 – 10.78.150.11010.78.150.111
2910.78.150.112/3010.78.150.113 – 10.78.150.11410.78.150.115
3010.78.150.116/3010.78.150.117 – 10.78.150.11810.78.150.119
3110.78.150.120/3010.78.150.121 – 10.78.150.12210.78.150.123
3210.78.150.124/3010.78.150.125 – 10.78.150.12610.78.150.127
3310.78.150.128/3010.78.150.129 – 10.78.150.13010.78.150.131
3410.78.150.132/3010.78.150.133 – 10.78.150.13410.78.150.135
3510.78.150.136/3010.78.150.137 – 10.78.150.13810.78.150.139
3610.78.150.140/3010.78.150.141 – 10.78.150.14210.78.150.143
3710.78.150.144/3010.78.150.145 – 10.78.150.14610.78.150.147
3810.78.150.148/3010.78.150.149 – 10.78.150.15010.78.150.151
3910.78.150.152/3010.78.150.153 – 10.78.150.15410.78.150.155
4010.78.150.156/3010.78.150.157 – 10.78.150.15810.78.150.159
4110.78.150.160/3010.78.150.161 – 10.78.150.16210.78.150.163
4210.78.150.164/3010.78.150.165 – 10.78.150.16610.78.150.167
4310.78.150.168/3010.78.150.169 – 10.78.150.17010.78.150.171
4410.78.150.172/3010.78.150.173 – 10.78.150.17410.78.150.175
4510.78.150.176/3010.78.150.177 – 10.78.150.17810.78.150.179
4610.78.150.180/3010.78.150.181 – 10.78.150.18210.78.150.183
4710.78.150.184/3010.78.150.185 – 10.78.150.18610.78.150.187
4810.78.150.188/3010.78.150.189 – 10.78.150.19010.78.150.191
4910.78.150.192/3010.78.150.193 – 10.78.150.19410.78.150.195
5010.78.150.196/3010.78.150.197 – 10.78.150.19810.78.150.199
5110.78.150.200/3010.78.150.201 – 10.78.150.20210.78.150.203
5210.78.150.204/3010.78.150.205 – 10.78.150.20610.78.150.207
5310.78.150.208/3010.78.150.209 – 10.78.150.21010.78.150.211
5410.78.150.212/3010.78.150.213 – 10.78.150.21410.78.150.215
5510.78.150.216/3010.78.150.217 – 10.78.150.21810.78.150.219
5610.78.150.220/3010.78.150.221 – 10.78.150.22210.78.150.223
5710.78.150.224/3010.78.150.225 – 10.78.150.22610.78.150.227
5810.78.150.228/3010.78.150.229 – 10.78.150.23010.78.150.231
5910.78.150.232/3010.78.150.233 – 10.78.150.23410.78.150.235
6010.78.150.236/3010.78.150.237 – 10.78.150.23810.78.150.239
6110.78.150.240/3010.78.150.241 – 10.78.150.24210.78.150.243
6210.78.150.244/3010.78.150.245 – 10.78.150.24610.78.150.247
6310.78.150.248/3010.78.150.249 – 10.78.150.25010.78.150.251
6410.78.150.252/3010.78.150.253 – 10.78.150.25410.78.150.255
6510.78.151.0/3010.78.151.1 – 10.78.151.210.78.151.3
6610.78.151.4/3010.78.151.5 – 10.78.151.610.78.151.7
6710.78.151.8/3010.78.151.9 – 10.78.151.1010.78.151.11
6810.78.151.12/3010.78.151.13 – 10.78.151.1410.78.151.15
6910.78.151.16/3010.78.151.17 – 10.78.151.1810.78.151.19
7010.78.151.20/3010.78.151.21 – 10.78.151.2210.78.151.23
7110.78.151.24/3010.78.151.25 – 10.78.151.2610.78.151.27
7210.78.151.28/3010.78.151.29 – 10.78.151.3010.78.151.31
7310.78.151.32/3010.78.151.33 – 10.78.151.3410.78.151.35
7410.78.151.36/3010.78.151.37 – 10.78.151.3810.78.151.39
7510.78.151.40/3010.78.151.41 – 10.78.151.4210.78.151.43
7610.78.151.44/3010.78.151.45 – 10.78.151.4610.78.151.47
7710.78.151.48/3010.78.151.49 – 10.78.151.5010.78.151.51
7810.78.151.52/3010.78.151.53 – 10.78.151.5410.78.151.55
7910.78.151.56/3010.78.151.57 – 10.78.151.5810.78.151.59
8010.78.151.60/3010.78.151.61 – 10.78.151.6210.78.151.63
8110.78.151.64/3010.78.151.65 – 10.78.151.6610.78.151.67
8210.78.151.68/3010.78.151.69 – 10.78.151.7010.78.151.71
8310.78.151.72/3010.78.151.73 – 10.78.151.7410.78.151.75
8410.78.151.76/3010.78.151.77 – 10.78.151.7810.78.151.79
8510.78.151.80/3010.78.151.81 – 10.78.151.8210.78.151.83
8610.78.151.84/3010.78.151.85 – 10.78.151.8610.78.151.87
8710.78.151.88/3010.78.151.89 – 10.78.151.9010.78.151.91
8810.78.151.92/3010.78.151.93 – 10.78.151.9410.78.151.95
8910.78.151.96/3010.78.151.97 – 10.78.151.9810.78.151.99
9010.78.151.100/3010.78.151.101 – 10.78.151.10210.78.151.103
9110.78.151.104/3010.78.151.105 – 10.78.151.10610.78.151.107
9210.78.151.108/3010.78.151.109 – 10.78.151.11010.78.151.111
9310.78.151.112/3010.78.151.113 – 10.78.151.11410.78.151.115
9410.78.151.116/3010.78.151.117 – 10.78.151.11810.78.151.119
9510.78.151.120/3010.78.151.121 – 10.78.151.12210.78.151.123
9610.78.151.124/3010.78.151.125 – 10.78.151.12610.78.151.127
9710.78.151.128/3010.78.151.129 – 10.78.151.13010.78.151.131
9810.78.151.132/3010.78.151.133 – 10.78.151.13410.78.151.135
9910.78.151.136/3010.78.151.137 – 10.78.151.13810.78.151.139
10010.78.151.140/3010.78.151.141 – 10.78.151.14210.78.151.143
10110.78.151.144/3010.78.151.145 – 10.78.151.14610.78.151.147
10210.78.151.148/3010.78.151.149 – 10.78.151.15010.78.151.151
10310.78.151.152/3010.78.151.153 – 10.78.151.15410.78.151.155
10410.78.151.156/3010.78.151.157 – 10.78.151.15810.78.151.159
10510.78.151.160/3010.78.151.161 – 10.78.151.16210.78.151.163
10610.78.151.164/3010.78.151.165 – 10.78.151.16610.78.151.167
10710.78.151.168/3010.78.151.169 – 10.78.151.17010.78.151.171
10810.78.151.172/3010.78.151.173 – 10.78.151.17410.78.151.175
10910.78.151.176/3010.78.151.177 – 10.78.151.17810.78.151.179
11010.78.151.180/3010.78.151.181 – 10.78.151.18210.78.151.183
11110.78.151.184/3010.78.151.185 – 10.78.151.18610.78.151.187
11210.78.151.188/3010.78.151.189 – 10.78.151.19010.78.151.191
11310.78.151.192/3010.78.151.193 – 10.78.151.19410.78.151.195
11410.78.151.196/3010.78.151.197 – 10.78.151.19810.78.151.199
11510.78.151.200/3010.78.151.201 – 10.78.151.20210.78.151.203
11610.78.151.204/3010.78.151.205 – 10.78.151.20610.78.151.207
11710.78.151.208/3010.78.151.209 – 10.78.151.21010.78.151.211
11810.78.151.212/3010.78.151.213 – 10.78.151.21410.78.151.215
11910.78.151.216/3010.78.151.217 – 10.78.151.21810.78.151.219
12010.78.151.220/3010.78.151.221 – 10.78.151.22210.78.151.223
12110.78.151.224/3010.78.151.225 – 10.78.151.22610.78.151.227
12210.78.151.228/3010.78.151.229 – 10.78.151.23010.78.151.231
12310.78.151.232/3010.78.151.233 – 10.78.151.23410.78.151.235
12410.78.151.236/3010.78.151.237 – 10.78.151.23810.78.151.239
12510.78.151.240/3010.78.151.241 – 10.78.151.24210.78.151.243
12610.78.151.244/3010.78.151.245 – 10.78.151.24610.78.151.247
12710.78.151.248/3010.78.151.249 – 10.78.151.25010.78.151.251
12810.78.151.252/3010.78.151.253 – 10.78.151.25410.78.151.255
01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefixsubnet maskaddresseshostsin your /23
/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-
/23255.255.254.05125101
/24255.255.255.02562542 split →
/25255.255.255.1281281264 split →
/26255.255.255.19264628 split →
/27255.255.255.224323016 split →
/28255.255.255.240161432 split →
/29255.255.255.2488664 split →
/30255.255.255.25242128 split →
/31255.255.255.25422256 split →
/32255.255.255.25511512 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 →