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)10.78.164.0/22
network10.78.164.0/22
broadcast10.78.167.255
first host10.78.164.1
last host10.78.167.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.78.164.0/22
address00001010.01001110.10100100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01001110.10100100.00000000
broadcast00001010.01001110.10100111.11111111
green = network part, grey = host part
hex0x0a4ea400
decimal172925952
reverse dns0.164.78.10.in-addr.arpa
ipv4-mapped::ffff:a4e:a400

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.78.164.0/2910.78.164.1 – 10.78.164.610.78.164.7
210.78.164.8/2910.78.164.9 – 10.78.164.1410.78.164.15
310.78.164.16/2910.78.164.17 – 10.78.164.2210.78.164.23
410.78.164.24/2910.78.164.25 – 10.78.164.3010.78.164.31
510.78.164.32/2910.78.164.33 – 10.78.164.3810.78.164.39
610.78.164.40/2910.78.164.41 – 10.78.164.4610.78.164.47
710.78.164.48/2910.78.164.49 – 10.78.164.5410.78.164.55
810.78.164.56/2910.78.164.57 – 10.78.164.6210.78.164.63
910.78.164.64/2910.78.164.65 – 10.78.164.7010.78.164.71
1010.78.164.72/2910.78.164.73 – 10.78.164.7810.78.164.79
1110.78.164.80/2910.78.164.81 – 10.78.164.8610.78.164.87
1210.78.164.88/2910.78.164.89 – 10.78.164.9410.78.164.95
1310.78.164.96/2910.78.164.97 – 10.78.164.10210.78.164.103
1410.78.164.104/2910.78.164.105 – 10.78.164.11010.78.164.111
1510.78.164.112/2910.78.164.113 – 10.78.164.11810.78.164.119
1610.78.164.120/2910.78.164.121 – 10.78.164.12610.78.164.127
1710.78.164.128/2910.78.164.129 – 10.78.164.13410.78.164.135
1810.78.164.136/2910.78.164.137 – 10.78.164.14210.78.164.143
1910.78.164.144/2910.78.164.145 – 10.78.164.15010.78.164.151
2010.78.164.152/2910.78.164.153 – 10.78.164.15810.78.164.159
2110.78.164.160/2910.78.164.161 – 10.78.164.16610.78.164.167
2210.78.164.168/2910.78.164.169 – 10.78.164.17410.78.164.175
2310.78.164.176/2910.78.164.177 – 10.78.164.18210.78.164.183
2410.78.164.184/2910.78.164.185 – 10.78.164.19010.78.164.191
2510.78.164.192/2910.78.164.193 – 10.78.164.19810.78.164.199
2610.78.164.200/2910.78.164.201 – 10.78.164.20610.78.164.207
2710.78.164.208/2910.78.164.209 – 10.78.164.21410.78.164.215
2810.78.164.216/2910.78.164.217 – 10.78.164.22210.78.164.223
2910.78.164.224/2910.78.164.225 – 10.78.164.23010.78.164.231
3010.78.164.232/2910.78.164.233 – 10.78.164.23810.78.164.239
3110.78.164.240/2910.78.164.241 – 10.78.164.24610.78.164.247
3210.78.164.248/2910.78.164.249 – 10.78.164.25410.78.164.255
3310.78.165.0/2910.78.165.1 – 10.78.165.610.78.165.7
3410.78.165.8/2910.78.165.9 – 10.78.165.1410.78.165.15
3510.78.165.16/2910.78.165.17 – 10.78.165.2210.78.165.23
3610.78.165.24/2910.78.165.25 – 10.78.165.3010.78.165.31
3710.78.165.32/2910.78.165.33 – 10.78.165.3810.78.165.39
3810.78.165.40/2910.78.165.41 – 10.78.165.4610.78.165.47
3910.78.165.48/2910.78.165.49 – 10.78.165.5410.78.165.55
4010.78.165.56/2910.78.165.57 – 10.78.165.6210.78.165.63
4110.78.165.64/2910.78.165.65 – 10.78.165.7010.78.165.71
4210.78.165.72/2910.78.165.73 – 10.78.165.7810.78.165.79
4310.78.165.80/2910.78.165.81 – 10.78.165.8610.78.165.87
4410.78.165.88/2910.78.165.89 – 10.78.165.9410.78.165.95
4510.78.165.96/2910.78.165.97 – 10.78.165.10210.78.165.103
4610.78.165.104/2910.78.165.105 – 10.78.165.11010.78.165.111
4710.78.165.112/2910.78.165.113 – 10.78.165.11810.78.165.119
4810.78.165.120/2910.78.165.121 – 10.78.165.12610.78.165.127
4910.78.165.128/2910.78.165.129 – 10.78.165.13410.78.165.135
5010.78.165.136/2910.78.165.137 – 10.78.165.14210.78.165.143
5110.78.165.144/2910.78.165.145 – 10.78.165.15010.78.165.151
5210.78.165.152/2910.78.165.153 – 10.78.165.15810.78.165.159
5310.78.165.160/2910.78.165.161 – 10.78.165.16610.78.165.167
5410.78.165.168/2910.78.165.169 – 10.78.165.17410.78.165.175
5510.78.165.176/2910.78.165.177 – 10.78.165.18210.78.165.183
5610.78.165.184/2910.78.165.185 – 10.78.165.19010.78.165.191
5710.78.165.192/2910.78.165.193 – 10.78.165.19810.78.165.199
5810.78.165.200/2910.78.165.201 – 10.78.165.20610.78.165.207
5910.78.165.208/2910.78.165.209 – 10.78.165.21410.78.165.215
6010.78.165.216/2910.78.165.217 – 10.78.165.22210.78.165.223
6110.78.165.224/2910.78.165.225 – 10.78.165.23010.78.165.231
6210.78.165.232/2910.78.165.233 – 10.78.165.23810.78.165.239
6310.78.165.240/2910.78.165.241 – 10.78.165.24610.78.165.247
6410.78.165.248/2910.78.165.249 – 10.78.165.25410.78.165.255
6510.78.166.0/2910.78.166.1 – 10.78.166.610.78.166.7
6610.78.166.8/2910.78.166.9 – 10.78.166.1410.78.166.15
6710.78.166.16/2910.78.166.17 – 10.78.166.2210.78.166.23
6810.78.166.24/2910.78.166.25 – 10.78.166.3010.78.166.31
6910.78.166.32/2910.78.166.33 – 10.78.166.3810.78.166.39
7010.78.166.40/2910.78.166.41 – 10.78.166.4610.78.166.47
7110.78.166.48/2910.78.166.49 – 10.78.166.5410.78.166.55
7210.78.166.56/2910.78.166.57 – 10.78.166.6210.78.166.63
7310.78.166.64/2910.78.166.65 – 10.78.166.7010.78.166.71
7410.78.166.72/2910.78.166.73 – 10.78.166.7810.78.166.79
7510.78.166.80/2910.78.166.81 – 10.78.166.8610.78.166.87
7610.78.166.88/2910.78.166.89 – 10.78.166.9410.78.166.95
7710.78.166.96/2910.78.166.97 – 10.78.166.10210.78.166.103
7810.78.166.104/2910.78.166.105 – 10.78.166.11010.78.166.111
7910.78.166.112/2910.78.166.113 – 10.78.166.11810.78.166.119
8010.78.166.120/2910.78.166.121 – 10.78.166.12610.78.166.127
8110.78.166.128/2910.78.166.129 – 10.78.166.13410.78.166.135
8210.78.166.136/2910.78.166.137 – 10.78.166.14210.78.166.143
8310.78.166.144/2910.78.166.145 – 10.78.166.15010.78.166.151
8410.78.166.152/2910.78.166.153 – 10.78.166.15810.78.166.159
8510.78.166.160/2910.78.166.161 – 10.78.166.16610.78.166.167
8610.78.166.168/2910.78.166.169 – 10.78.166.17410.78.166.175
8710.78.166.176/2910.78.166.177 – 10.78.166.18210.78.166.183
8810.78.166.184/2910.78.166.185 – 10.78.166.19010.78.166.191
8910.78.166.192/2910.78.166.193 – 10.78.166.19810.78.166.199
9010.78.166.200/2910.78.166.201 – 10.78.166.20610.78.166.207
9110.78.166.208/2910.78.166.209 – 10.78.166.21410.78.166.215
9210.78.166.216/2910.78.166.217 – 10.78.166.22210.78.166.223
9310.78.166.224/2910.78.166.225 – 10.78.166.23010.78.166.231
9410.78.166.232/2910.78.166.233 – 10.78.166.23810.78.166.239
9510.78.166.240/2910.78.166.241 – 10.78.166.24610.78.166.247
9610.78.166.248/2910.78.166.249 – 10.78.166.25410.78.166.255
9710.78.167.0/2910.78.167.1 – 10.78.167.610.78.167.7
9810.78.167.8/2910.78.167.9 – 10.78.167.1410.78.167.15
9910.78.167.16/2910.78.167.17 – 10.78.167.2210.78.167.23
10010.78.167.24/2910.78.167.25 – 10.78.167.3010.78.167.31
10110.78.167.32/2910.78.167.33 – 10.78.167.3810.78.167.39
10210.78.167.40/2910.78.167.41 – 10.78.167.4610.78.167.47
10310.78.167.48/2910.78.167.49 – 10.78.167.5410.78.167.55
10410.78.167.56/2910.78.167.57 – 10.78.167.6210.78.167.63
10510.78.167.64/2910.78.167.65 – 10.78.167.7010.78.167.71
10610.78.167.72/2910.78.167.73 – 10.78.167.7810.78.167.79
10710.78.167.80/2910.78.167.81 – 10.78.167.8610.78.167.87
10810.78.167.88/2910.78.167.89 – 10.78.167.9410.78.167.95
10910.78.167.96/2910.78.167.97 – 10.78.167.10210.78.167.103
11010.78.167.104/2910.78.167.105 – 10.78.167.11010.78.167.111
11110.78.167.112/2910.78.167.113 – 10.78.167.11810.78.167.119
11210.78.167.120/2910.78.167.121 – 10.78.167.12610.78.167.127
11310.78.167.128/2910.78.167.129 – 10.78.167.13410.78.167.135
11410.78.167.136/2910.78.167.137 – 10.78.167.14210.78.167.143
11510.78.167.144/2910.78.167.145 – 10.78.167.15010.78.167.151
11610.78.167.152/2910.78.167.153 – 10.78.167.15810.78.167.159
11710.78.167.160/2910.78.167.161 – 10.78.167.16610.78.167.167
11810.78.167.168/2910.78.167.169 – 10.78.167.17410.78.167.175
11910.78.167.176/2910.78.167.177 – 10.78.167.18210.78.167.183
12010.78.167.184/2910.78.167.185 – 10.78.167.19010.78.167.191
12110.78.167.192/2910.78.167.193 – 10.78.167.19810.78.167.199
12210.78.167.200/2910.78.167.201 – 10.78.167.20610.78.167.207
12310.78.167.208/2910.78.167.209 – 10.78.167.21410.78.167.215
12410.78.167.216/2910.78.167.217 – 10.78.167.22210.78.167.223
12510.78.167.224/2910.78.167.225 – 10.78.167.23010.78.167.231
12610.78.167.232/2910.78.167.233 – 10.78.167.23810.78.167.239
12710.78.167.240/2910.78.167.241 – 10.78.167.24610.78.167.247
12810.78.167.248/2910.78.167.249 – 10.78.167.25410.78.167.255
01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /22
/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-
/22255.255.252.01,0241,0221
/23255.255.254.05125102 split →
/24255.255.255.02562544 split →
/25255.255.255.1281281268 split →
/26255.255.255.192646216 split →
/27255.255.255.224323032 split →
/28255.255.255.240161464 split →
/29255.255.255.24886128 split →
/30255.255.255.25242256 split →
/31255.255.255.25422512 split →
/32255.255.255.255111,024 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 →