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)10.78.0.0/22
network10.78.0.0/22
broadcast10.78.3.255
first host10.78.0.1
last host10.78.3.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.78.0.0/22
address00001010.01001110.00000000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01001110.00000000.00000000
broadcast00001010.01001110.00000011.11111111
green = network part, grey = host part
hex0x0a4e0000
decimal172883968
reverse dns0.0.78.10.in-addr.arpa
ipv4-mapped::ffff:a4e:0

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.78.0.0/2910.78.0.1 – 10.78.0.610.78.0.7
210.78.0.8/2910.78.0.9 – 10.78.0.1410.78.0.15
310.78.0.16/2910.78.0.17 – 10.78.0.2210.78.0.23
410.78.0.24/2910.78.0.25 – 10.78.0.3010.78.0.31
510.78.0.32/2910.78.0.33 – 10.78.0.3810.78.0.39
610.78.0.40/2910.78.0.41 – 10.78.0.4610.78.0.47
710.78.0.48/2910.78.0.49 – 10.78.0.5410.78.0.55
810.78.0.56/2910.78.0.57 – 10.78.0.6210.78.0.63
910.78.0.64/2910.78.0.65 – 10.78.0.7010.78.0.71
1010.78.0.72/2910.78.0.73 – 10.78.0.7810.78.0.79
1110.78.0.80/2910.78.0.81 – 10.78.0.8610.78.0.87
1210.78.0.88/2910.78.0.89 – 10.78.0.9410.78.0.95
1310.78.0.96/2910.78.0.97 – 10.78.0.10210.78.0.103
1410.78.0.104/2910.78.0.105 – 10.78.0.11010.78.0.111
1510.78.0.112/2910.78.0.113 – 10.78.0.11810.78.0.119
1610.78.0.120/2910.78.0.121 – 10.78.0.12610.78.0.127
1710.78.0.128/2910.78.0.129 – 10.78.0.13410.78.0.135
1810.78.0.136/2910.78.0.137 – 10.78.0.14210.78.0.143
1910.78.0.144/2910.78.0.145 – 10.78.0.15010.78.0.151
2010.78.0.152/2910.78.0.153 – 10.78.0.15810.78.0.159
2110.78.0.160/2910.78.0.161 – 10.78.0.16610.78.0.167
2210.78.0.168/2910.78.0.169 – 10.78.0.17410.78.0.175
2310.78.0.176/2910.78.0.177 – 10.78.0.18210.78.0.183
2410.78.0.184/2910.78.0.185 – 10.78.0.19010.78.0.191
2510.78.0.192/2910.78.0.193 – 10.78.0.19810.78.0.199
2610.78.0.200/2910.78.0.201 – 10.78.0.20610.78.0.207
2710.78.0.208/2910.78.0.209 – 10.78.0.21410.78.0.215
2810.78.0.216/2910.78.0.217 – 10.78.0.22210.78.0.223
2910.78.0.224/2910.78.0.225 – 10.78.0.23010.78.0.231
3010.78.0.232/2910.78.0.233 – 10.78.0.23810.78.0.239
3110.78.0.240/2910.78.0.241 – 10.78.0.24610.78.0.247
3210.78.0.248/2910.78.0.249 – 10.78.0.25410.78.0.255
3310.78.1.0/2910.78.1.1 – 10.78.1.610.78.1.7
3410.78.1.8/2910.78.1.9 – 10.78.1.1410.78.1.15
3510.78.1.16/2910.78.1.17 – 10.78.1.2210.78.1.23
3610.78.1.24/2910.78.1.25 – 10.78.1.3010.78.1.31
3710.78.1.32/2910.78.1.33 – 10.78.1.3810.78.1.39
3810.78.1.40/2910.78.1.41 – 10.78.1.4610.78.1.47
3910.78.1.48/2910.78.1.49 – 10.78.1.5410.78.1.55
4010.78.1.56/2910.78.1.57 – 10.78.1.6210.78.1.63
4110.78.1.64/2910.78.1.65 – 10.78.1.7010.78.1.71
4210.78.1.72/2910.78.1.73 – 10.78.1.7810.78.1.79
4310.78.1.80/2910.78.1.81 – 10.78.1.8610.78.1.87
4410.78.1.88/2910.78.1.89 – 10.78.1.9410.78.1.95
4510.78.1.96/2910.78.1.97 – 10.78.1.10210.78.1.103
4610.78.1.104/2910.78.1.105 – 10.78.1.11010.78.1.111
4710.78.1.112/2910.78.1.113 – 10.78.1.11810.78.1.119
4810.78.1.120/2910.78.1.121 – 10.78.1.12610.78.1.127
4910.78.1.128/2910.78.1.129 – 10.78.1.13410.78.1.135
5010.78.1.136/2910.78.1.137 – 10.78.1.14210.78.1.143
5110.78.1.144/2910.78.1.145 – 10.78.1.15010.78.1.151
5210.78.1.152/2910.78.1.153 – 10.78.1.15810.78.1.159
5310.78.1.160/2910.78.1.161 – 10.78.1.16610.78.1.167
5410.78.1.168/2910.78.1.169 – 10.78.1.17410.78.1.175
5510.78.1.176/2910.78.1.177 – 10.78.1.18210.78.1.183
5610.78.1.184/2910.78.1.185 – 10.78.1.19010.78.1.191
5710.78.1.192/2910.78.1.193 – 10.78.1.19810.78.1.199
5810.78.1.200/2910.78.1.201 – 10.78.1.20610.78.1.207
5910.78.1.208/2910.78.1.209 – 10.78.1.21410.78.1.215
6010.78.1.216/2910.78.1.217 – 10.78.1.22210.78.1.223
6110.78.1.224/2910.78.1.225 – 10.78.1.23010.78.1.231
6210.78.1.232/2910.78.1.233 – 10.78.1.23810.78.1.239
6310.78.1.240/2910.78.1.241 – 10.78.1.24610.78.1.247
6410.78.1.248/2910.78.1.249 – 10.78.1.25410.78.1.255
6510.78.2.0/2910.78.2.1 – 10.78.2.610.78.2.7
6610.78.2.8/2910.78.2.9 – 10.78.2.1410.78.2.15
6710.78.2.16/2910.78.2.17 – 10.78.2.2210.78.2.23
6810.78.2.24/2910.78.2.25 – 10.78.2.3010.78.2.31
6910.78.2.32/2910.78.2.33 – 10.78.2.3810.78.2.39
7010.78.2.40/2910.78.2.41 – 10.78.2.4610.78.2.47
7110.78.2.48/2910.78.2.49 – 10.78.2.5410.78.2.55
7210.78.2.56/2910.78.2.57 – 10.78.2.6210.78.2.63
7310.78.2.64/2910.78.2.65 – 10.78.2.7010.78.2.71
7410.78.2.72/2910.78.2.73 – 10.78.2.7810.78.2.79
7510.78.2.80/2910.78.2.81 – 10.78.2.8610.78.2.87
7610.78.2.88/2910.78.2.89 – 10.78.2.9410.78.2.95
7710.78.2.96/2910.78.2.97 – 10.78.2.10210.78.2.103
7810.78.2.104/2910.78.2.105 – 10.78.2.11010.78.2.111
7910.78.2.112/2910.78.2.113 – 10.78.2.11810.78.2.119
8010.78.2.120/2910.78.2.121 – 10.78.2.12610.78.2.127
8110.78.2.128/2910.78.2.129 – 10.78.2.13410.78.2.135
8210.78.2.136/2910.78.2.137 – 10.78.2.14210.78.2.143
8310.78.2.144/2910.78.2.145 – 10.78.2.15010.78.2.151
8410.78.2.152/2910.78.2.153 – 10.78.2.15810.78.2.159
8510.78.2.160/2910.78.2.161 – 10.78.2.16610.78.2.167
8610.78.2.168/2910.78.2.169 – 10.78.2.17410.78.2.175
8710.78.2.176/2910.78.2.177 – 10.78.2.18210.78.2.183
8810.78.2.184/2910.78.2.185 – 10.78.2.19010.78.2.191
8910.78.2.192/2910.78.2.193 – 10.78.2.19810.78.2.199
9010.78.2.200/2910.78.2.201 – 10.78.2.20610.78.2.207
9110.78.2.208/2910.78.2.209 – 10.78.2.21410.78.2.215
9210.78.2.216/2910.78.2.217 – 10.78.2.22210.78.2.223
9310.78.2.224/2910.78.2.225 – 10.78.2.23010.78.2.231
9410.78.2.232/2910.78.2.233 – 10.78.2.23810.78.2.239
9510.78.2.240/2910.78.2.241 – 10.78.2.24610.78.2.247
9610.78.2.248/2910.78.2.249 – 10.78.2.25410.78.2.255
9710.78.3.0/2910.78.3.1 – 10.78.3.610.78.3.7
9810.78.3.8/2910.78.3.9 – 10.78.3.1410.78.3.15
9910.78.3.16/2910.78.3.17 – 10.78.3.2210.78.3.23
10010.78.3.24/2910.78.3.25 – 10.78.3.3010.78.3.31
10110.78.3.32/2910.78.3.33 – 10.78.3.3810.78.3.39
10210.78.3.40/2910.78.3.41 – 10.78.3.4610.78.3.47
10310.78.3.48/2910.78.3.49 – 10.78.3.5410.78.3.55
10410.78.3.56/2910.78.3.57 – 10.78.3.6210.78.3.63
10510.78.3.64/2910.78.3.65 – 10.78.3.7010.78.3.71
10610.78.3.72/2910.78.3.73 – 10.78.3.7810.78.3.79
10710.78.3.80/2910.78.3.81 – 10.78.3.8610.78.3.87
10810.78.3.88/2910.78.3.89 – 10.78.3.9410.78.3.95
10910.78.3.96/2910.78.3.97 – 10.78.3.10210.78.3.103
11010.78.3.104/2910.78.3.105 – 10.78.3.11010.78.3.111
11110.78.3.112/2910.78.3.113 – 10.78.3.11810.78.3.119
11210.78.3.120/2910.78.3.121 – 10.78.3.12610.78.3.127
11310.78.3.128/2910.78.3.129 – 10.78.3.13410.78.3.135
11410.78.3.136/2910.78.3.137 – 10.78.3.14210.78.3.143
11510.78.3.144/2910.78.3.145 – 10.78.3.15010.78.3.151
11610.78.3.152/2910.78.3.153 – 10.78.3.15810.78.3.159
11710.78.3.160/2910.78.3.161 – 10.78.3.16610.78.3.167
11810.78.3.168/2910.78.3.169 – 10.78.3.17410.78.3.175
11910.78.3.176/2910.78.3.177 – 10.78.3.18210.78.3.183
12010.78.3.184/2910.78.3.185 – 10.78.3.19010.78.3.191
12110.78.3.192/2910.78.3.193 – 10.78.3.19810.78.3.199
12210.78.3.200/2910.78.3.201 – 10.78.3.20610.78.3.207
12310.78.3.208/2910.78.3.209 – 10.78.3.21410.78.3.215
12410.78.3.216/2910.78.3.217 – 10.78.3.22210.78.3.223
12510.78.3.224/2910.78.3.225 – 10.78.3.23010.78.3.231
12610.78.3.232/2910.78.3.233 – 10.78.3.23810.78.3.239
12710.78.3.240/2910.78.3.241 – 10.78.3.24610.78.3.247
12810.78.3.248/2910.78.3.249 – 10.78.3.25410.78.3.255
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 →