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)10.239.192.0/22
network10.239.192.0/22
broadcast10.239.195.255
first host10.239.192.1
last host10.239.195.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.239.192.0/22
address00001010.11101111.11000000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.11101111.11000000.00000000
broadcast00001010.11101111.11000011.11111111
green = network part, grey = host part
hex0x0aefc000
decimal183484416
reverse dns0.192.239.10.in-addr.arpa
ipv4-mapped::ffff:aef:c000

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.239.192.0/2910.239.192.1 – 10.239.192.610.239.192.7
210.239.192.8/2910.239.192.9 – 10.239.192.1410.239.192.15
310.239.192.16/2910.239.192.17 – 10.239.192.2210.239.192.23
410.239.192.24/2910.239.192.25 – 10.239.192.3010.239.192.31
510.239.192.32/2910.239.192.33 – 10.239.192.3810.239.192.39
610.239.192.40/2910.239.192.41 – 10.239.192.4610.239.192.47
710.239.192.48/2910.239.192.49 – 10.239.192.5410.239.192.55
810.239.192.56/2910.239.192.57 – 10.239.192.6210.239.192.63
910.239.192.64/2910.239.192.65 – 10.239.192.7010.239.192.71
1010.239.192.72/2910.239.192.73 – 10.239.192.7810.239.192.79
1110.239.192.80/2910.239.192.81 – 10.239.192.8610.239.192.87
1210.239.192.88/2910.239.192.89 – 10.239.192.9410.239.192.95
1310.239.192.96/2910.239.192.97 – 10.239.192.10210.239.192.103
1410.239.192.104/2910.239.192.105 – 10.239.192.11010.239.192.111
1510.239.192.112/2910.239.192.113 – 10.239.192.11810.239.192.119
1610.239.192.120/2910.239.192.121 – 10.239.192.12610.239.192.127
1710.239.192.128/2910.239.192.129 – 10.239.192.13410.239.192.135
1810.239.192.136/2910.239.192.137 – 10.239.192.14210.239.192.143
1910.239.192.144/2910.239.192.145 – 10.239.192.15010.239.192.151
2010.239.192.152/2910.239.192.153 – 10.239.192.15810.239.192.159
2110.239.192.160/2910.239.192.161 – 10.239.192.16610.239.192.167
2210.239.192.168/2910.239.192.169 – 10.239.192.17410.239.192.175
2310.239.192.176/2910.239.192.177 – 10.239.192.18210.239.192.183
2410.239.192.184/2910.239.192.185 – 10.239.192.19010.239.192.191
2510.239.192.192/2910.239.192.193 – 10.239.192.19810.239.192.199
2610.239.192.200/2910.239.192.201 – 10.239.192.20610.239.192.207
2710.239.192.208/2910.239.192.209 – 10.239.192.21410.239.192.215
2810.239.192.216/2910.239.192.217 – 10.239.192.22210.239.192.223
2910.239.192.224/2910.239.192.225 – 10.239.192.23010.239.192.231
3010.239.192.232/2910.239.192.233 – 10.239.192.23810.239.192.239
3110.239.192.240/2910.239.192.241 – 10.239.192.24610.239.192.247
3210.239.192.248/2910.239.192.249 – 10.239.192.25410.239.192.255
3310.239.193.0/2910.239.193.1 – 10.239.193.610.239.193.7
3410.239.193.8/2910.239.193.9 – 10.239.193.1410.239.193.15
3510.239.193.16/2910.239.193.17 – 10.239.193.2210.239.193.23
3610.239.193.24/2910.239.193.25 – 10.239.193.3010.239.193.31
3710.239.193.32/2910.239.193.33 – 10.239.193.3810.239.193.39
3810.239.193.40/2910.239.193.41 – 10.239.193.4610.239.193.47
3910.239.193.48/2910.239.193.49 – 10.239.193.5410.239.193.55
4010.239.193.56/2910.239.193.57 – 10.239.193.6210.239.193.63
4110.239.193.64/2910.239.193.65 – 10.239.193.7010.239.193.71
4210.239.193.72/2910.239.193.73 – 10.239.193.7810.239.193.79
4310.239.193.80/2910.239.193.81 – 10.239.193.8610.239.193.87
4410.239.193.88/2910.239.193.89 – 10.239.193.9410.239.193.95
4510.239.193.96/2910.239.193.97 – 10.239.193.10210.239.193.103
4610.239.193.104/2910.239.193.105 – 10.239.193.11010.239.193.111
4710.239.193.112/2910.239.193.113 – 10.239.193.11810.239.193.119
4810.239.193.120/2910.239.193.121 – 10.239.193.12610.239.193.127
4910.239.193.128/2910.239.193.129 – 10.239.193.13410.239.193.135
5010.239.193.136/2910.239.193.137 – 10.239.193.14210.239.193.143
5110.239.193.144/2910.239.193.145 – 10.239.193.15010.239.193.151
5210.239.193.152/2910.239.193.153 – 10.239.193.15810.239.193.159
5310.239.193.160/2910.239.193.161 – 10.239.193.16610.239.193.167
5410.239.193.168/2910.239.193.169 – 10.239.193.17410.239.193.175
5510.239.193.176/2910.239.193.177 – 10.239.193.18210.239.193.183
5610.239.193.184/2910.239.193.185 – 10.239.193.19010.239.193.191
5710.239.193.192/2910.239.193.193 – 10.239.193.19810.239.193.199
5810.239.193.200/2910.239.193.201 – 10.239.193.20610.239.193.207
5910.239.193.208/2910.239.193.209 – 10.239.193.21410.239.193.215
6010.239.193.216/2910.239.193.217 – 10.239.193.22210.239.193.223
6110.239.193.224/2910.239.193.225 – 10.239.193.23010.239.193.231
6210.239.193.232/2910.239.193.233 – 10.239.193.23810.239.193.239
6310.239.193.240/2910.239.193.241 – 10.239.193.24610.239.193.247
6410.239.193.248/2910.239.193.249 – 10.239.193.25410.239.193.255
6510.239.194.0/2910.239.194.1 – 10.239.194.610.239.194.7
6610.239.194.8/2910.239.194.9 – 10.239.194.1410.239.194.15
6710.239.194.16/2910.239.194.17 – 10.239.194.2210.239.194.23
6810.239.194.24/2910.239.194.25 – 10.239.194.3010.239.194.31
6910.239.194.32/2910.239.194.33 – 10.239.194.3810.239.194.39
7010.239.194.40/2910.239.194.41 – 10.239.194.4610.239.194.47
7110.239.194.48/2910.239.194.49 – 10.239.194.5410.239.194.55
7210.239.194.56/2910.239.194.57 – 10.239.194.6210.239.194.63
7310.239.194.64/2910.239.194.65 – 10.239.194.7010.239.194.71
7410.239.194.72/2910.239.194.73 – 10.239.194.7810.239.194.79
7510.239.194.80/2910.239.194.81 – 10.239.194.8610.239.194.87
7610.239.194.88/2910.239.194.89 – 10.239.194.9410.239.194.95
7710.239.194.96/2910.239.194.97 – 10.239.194.10210.239.194.103
7810.239.194.104/2910.239.194.105 – 10.239.194.11010.239.194.111
7910.239.194.112/2910.239.194.113 – 10.239.194.11810.239.194.119
8010.239.194.120/2910.239.194.121 – 10.239.194.12610.239.194.127
8110.239.194.128/2910.239.194.129 – 10.239.194.13410.239.194.135
8210.239.194.136/2910.239.194.137 – 10.239.194.14210.239.194.143
8310.239.194.144/2910.239.194.145 – 10.239.194.15010.239.194.151
8410.239.194.152/2910.239.194.153 – 10.239.194.15810.239.194.159
8510.239.194.160/2910.239.194.161 – 10.239.194.16610.239.194.167
8610.239.194.168/2910.239.194.169 – 10.239.194.17410.239.194.175
8710.239.194.176/2910.239.194.177 – 10.239.194.18210.239.194.183
8810.239.194.184/2910.239.194.185 – 10.239.194.19010.239.194.191
8910.239.194.192/2910.239.194.193 – 10.239.194.19810.239.194.199
9010.239.194.200/2910.239.194.201 – 10.239.194.20610.239.194.207
9110.239.194.208/2910.239.194.209 – 10.239.194.21410.239.194.215
9210.239.194.216/2910.239.194.217 – 10.239.194.22210.239.194.223
9310.239.194.224/2910.239.194.225 – 10.239.194.23010.239.194.231
9410.239.194.232/2910.239.194.233 – 10.239.194.23810.239.194.239
9510.239.194.240/2910.239.194.241 – 10.239.194.24610.239.194.247
9610.239.194.248/2910.239.194.249 – 10.239.194.25410.239.194.255
9710.239.195.0/2910.239.195.1 – 10.239.195.610.239.195.7
9810.239.195.8/2910.239.195.9 – 10.239.195.1410.239.195.15
9910.239.195.16/2910.239.195.17 – 10.239.195.2210.239.195.23
10010.239.195.24/2910.239.195.25 – 10.239.195.3010.239.195.31
10110.239.195.32/2910.239.195.33 – 10.239.195.3810.239.195.39
10210.239.195.40/2910.239.195.41 – 10.239.195.4610.239.195.47
10310.239.195.48/2910.239.195.49 – 10.239.195.5410.239.195.55
10410.239.195.56/2910.239.195.57 – 10.239.195.6210.239.195.63
10510.239.195.64/2910.239.195.65 – 10.239.195.7010.239.195.71
10610.239.195.72/2910.239.195.73 – 10.239.195.7810.239.195.79
10710.239.195.80/2910.239.195.81 – 10.239.195.8610.239.195.87
10810.239.195.88/2910.239.195.89 – 10.239.195.9410.239.195.95
10910.239.195.96/2910.239.195.97 – 10.239.195.10210.239.195.103
11010.239.195.104/2910.239.195.105 – 10.239.195.11010.239.195.111
11110.239.195.112/2910.239.195.113 – 10.239.195.11810.239.195.119
11210.239.195.120/2910.239.195.121 – 10.239.195.12610.239.195.127
11310.239.195.128/2910.239.195.129 – 10.239.195.13410.239.195.135
11410.239.195.136/2910.239.195.137 – 10.239.195.14210.239.195.143
11510.239.195.144/2910.239.195.145 – 10.239.195.15010.239.195.151
11610.239.195.152/2910.239.195.153 – 10.239.195.15810.239.195.159
11710.239.195.160/2910.239.195.161 – 10.239.195.16610.239.195.167
11810.239.195.168/2910.239.195.169 – 10.239.195.17410.239.195.175
11910.239.195.176/2910.239.195.177 – 10.239.195.18210.239.195.183
12010.239.195.184/2910.239.195.185 – 10.239.195.19010.239.195.191
12110.239.195.192/2910.239.195.193 – 10.239.195.19810.239.195.199
12210.239.195.200/2910.239.195.201 – 10.239.195.20610.239.195.207
12310.239.195.208/2910.239.195.209 – 10.239.195.21410.239.195.215
12410.239.195.216/2910.239.195.217 – 10.239.195.22210.239.195.223
12510.239.195.224/2910.239.195.225 – 10.239.195.23010.239.195.231
12610.239.195.232/2910.239.195.233 – 10.239.195.23810.239.195.239
12710.239.195.240/2910.239.195.241 – 10.239.195.24610.239.195.247
12810.239.195.248/2910.239.195.249 – 10.239.195.25410.239.195.255
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 →