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)10.239.136.0/22
network10.239.136.0/22
broadcast10.239.139.255
first host10.239.136.1
last host10.239.139.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.239.136.0/22
address00001010.11101111.10001000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.11101111.10001000.00000000
broadcast00001010.11101111.10001011.11111111
green = network part, grey = host part
hex0x0aef8800
decimal183470080
reverse dns0.136.239.10.in-addr.arpa
ipv4-mapped::ffff:aef:8800

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.239.136.0/2910.239.136.1 – 10.239.136.610.239.136.7
210.239.136.8/2910.239.136.9 – 10.239.136.1410.239.136.15
310.239.136.16/2910.239.136.17 – 10.239.136.2210.239.136.23
410.239.136.24/2910.239.136.25 – 10.239.136.3010.239.136.31
510.239.136.32/2910.239.136.33 – 10.239.136.3810.239.136.39
610.239.136.40/2910.239.136.41 – 10.239.136.4610.239.136.47
710.239.136.48/2910.239.136.49 – 10.239.136.5410.239.136.55
810.239.136.56/2910.239.136.57 – 10.239.136.6210.239.136.63
910.239.136.64/2910.239.136.65 – 10.239.136.7010.239.136.71
1010.239.136.72/2910.239.136.73 – 10.239.136.7810.239.136.79
1110.239.136.80/2910.239.136.81 – 10.239.136.8610.239.136.87
1210.239.136.88/2910.239.136.89 – 10.239.136.9410.239.136.95
1310.239.136.96/2910.239.136.97 – 10.239.136.10210.239.136.103
1410.239.136.104/2910.239.136.105 – 10.239.136.11010.239.136.111
1510.239.136.112/2910.239.136.113 – 10.239.136.11810.239.136.119
1610.239.136.120/2910.239.136.121 – 10.239.136.12610.239.136.127
1710.239.136.128/2910.239.136.129 – 10.239.136.13410.239.136.135
1810.239.136.136/2910.239.136.137 – 10.239.136.14210.239.136.143
1910.239.136.144/2910.239.136.145 – 10.239.136.15010.239.136.151
2010.239.136.152/2910.239.136.153 – 10.239.136.15810.239.136.159
2110.239.136.160/2910.239.136.161 – 10.239.136.16610.239.136.167
2210.239.136.168/2910.239.136.169 – 10.239.136.17410.239.136.175
2310.239.136.176/2910.239.136.177 – 10.239.136.18210.239.136.183
2410.239.136.184/2910.239.136.185 – 10.239.136.19010.239.136.191
2510.239.136.192/2910.239.136.193 – 10.239.136.19810.239.136.199
2610.239.136.200/2910.239.136.201 – 10.239.136.20610.239.136.207
2710.239.136.208/2910.239.136.209 – 10.239.136.21410.239.136.215
2810.239.136.216/2910.239.136.217 – 10.239.136.22210.239.136.223
2910.239.136.224/2910.239.136.225 – 10.239.136.23010.239.136.231
3010.239.136.232/2910.239.136.233 – 10.239.136.23810.239.136.239
3110.239.136.240/2910.239.136.241 – 10.239.136.24610.239.136.247
3210.239.136.248/2910.239.136.249 – 10.239.136.25410.239.136.255
3310.239.137.0/2910.239.137.1 – 10.239.137.610.239.137.7
3410.239.137.8/2910.239.137.9 – 10.239.137.1410.239.137.15
3510.239.137.16/2910.239.137.17 – 10.239.137.2210.239.137.23
3610.239.137.24/2910.239.137.25 – 10.239.137.3010.239.137.31
3710.239.137.32/2910.239.137.33 – 10.239.137.3810.239.137.39
3810.239.137.40/2910.239.137.41 – 10.239.137.4610.239.137.47
3910.239.137.48/2910.239.137.49 – 10.239.137.5410.239.137.55
4010.239.137.56/2910.239.137.57 – 10.239.137.6210.239.137.63
4110.239.137.64/2910.239.137.65 – 10.239.137.7010.239.137.71
4210.239.137.72/2910.239.137.73 – 10.239.137.7810.239.137.79
4310.239.137.80/2910.239.137.81 – 10.239.137.8610.239.137.87
4410.239.137.88/2910.239.137.89 – 10.239.137.9410.239.137.95
4510.239.137.96/2910.239.137.97 – 10.239.137.10210.239.137.103
4610.239.137.104/2910.239.137.105 – 10.239.137.11010.239.137.111
4710.239.137.112/2910.239.137.113 – 10.239.137.11810.239.137.119
4810.239.137.120/2910.239.137.121 – 10.239.137.12610.239.137.127
4910.239.137.128/2910.239.137.129 – 10.239.137.13410.239.137.135
5010.239.137.136/2910.239.137.137 – 10.239.137.14210.239.137.143
5110.239.137.144/2910.239.137.145 – 10.239.137.15010.239.137.151
5210.239.137.152/2910.239.137.153 – 10.239.137.15810.239.137.159
5310.239.137.160/2910.239.137.161 – 10.239.137.16610.239.137.167
5410.239.137.168/2910.239.137.169 – 10.239.137.17410.239.137.175
5510.239.137.176/2910.239.137.177 – 10.239.137.18210.239.137.183
5610.239.137.184/2910.239.137.185 – 10.239.137.19010.239.137.191
5710.239.137.192/2910.239.137.193 – 10.239.137.19810.239.137.199
5810.239.137.200/2910.239.137.201 – 10.239.137.20610.239.137.207
5910.239.137.208/2910.239.137.209 – 10.239.137.21410.239.137.215
6010.239.137.216/2910.239.137.217 – 10.239.137.22210.239.137.223
6110.239.137.224/2910.239.137.225 – 10.239.137.23010.239.137.231
6210.239.137.232/2910.239.137.233 – 10.239.137.23810.239.137.239
6310.239.137.240/2910.239.137.241 – 10.239.137.24610.239.137.247
6410.239.137.248/2910.239.137.249 – 10.239.137.25410.239.137.255
6510.239.138.0/2910.239.138.1 – 10.239.138.610.239.138.7
6610.239.138.8/2910.239.138.9 – 10.239.138.1410.239.138.15
6710.239.138.16/2910.239.138.17 – 10.239.138.2210.239.138.23
6810.239.138.24/2910.239.138.25 – 10.239.138.3010.239.138.31
6910.239.138.32/2910.239.138.33 – 10.239.138.3810.239.138.39
7010.239.138.40/2910.239.138.41 – 10.239.138.4610.239.138.47
7110.239.138.48/2910.239.138.49 – 10.239.138.5410.239.138.55
7210.239.138.56/2910.239.138.57 – 10.239.138.6210.239.138.63
7310.239.138.64/2910.239.138.65 – 10.239.138.7010.239.138.71
7410.239.138.72/2910.239.138.73 – 10.239.138.7810.239.138.79
7510.239.138.80/2910.239.138.81 – 10.239.138.8610.239.138.87
7610.239.138.88/2910.239.138.89 – 10.239.138.9410.239.138.95
7710.239.138.96/2910.239.138.97 – 10.239.138.10210.239.138.103
7810.239.138.104/2910.239.138.105 – 10.239.138.11010.239.138.111
7910.239.138.112/2910.239.138.113 – 10.239.138.11810.239.138.119
8010.239.138.120/2910.239.138.121 – 10.239.138.12610.239.138.127
8110.239.138.128/2910.239.138.129 – 10.239.138.13410.239.138.135
8210.239.138.136/2910.239.138.137 – 10.239.138.14210.239.138.143
8310.239.138.144/2910.239.138.145 – 10.239.138.15010.239.138.151
8410.239.138.152/2910.239.138.153 – 10.239.138.15810.239.138.159
8510.239.138.160/2910.239.138.161 – 10.239.138.16610.239.138.167
8610.239.138.168/2910.239.138.169 – 10.239.138.17410.239.138.175
8710.239.138.176/2910.239.138.177 – 10.239.138.18210.239.138.183
8810.239.138.184/2910.239.138.185 – 10.239.138.19010.239.138.191
8910.239.138.192/2910.239.138.193 – 10.239.138.19810.239.138.199
9010.239.138.200/2910.239.138.201 – 10.239.138.20610.239.138.207
9110.239.138.208/2910.239.138.209 – 10.239.138.21410.239.138.215
9210.239.138.216/2910.239.138.217 – 10.239.138.22210.239.138.223
9310.239.138.224/2910.239.138.225 – 10.239.138.23010.239.138.231
9410.239.138.232/2910.239.138.233 – 10.239.138.23810.239.138.239
9510.239.138.240/2910.239.138.241 – 10.239.138.24610.239.138.247
9610.239.138.248/2910.239.138.249 – 10.239.138.25410.239.138.255
9710.239.139.0/2910.239.139.1 – 10.239.139.610.239.139.7
9810.239.139.8/2910.239.139.9 – 10.239.139.1410.239.139.15
9910.239.139.16/2910.239.139.17 – 10.239.139.2210.239.139.23
10010.239.139.24/2910.239.139.25 – 10.239.139.3010.239.139.31
10110.239.139.32/2910.239.139.33 – 10.239.139.3810.239.139.39
10210.239.139.40/2910.239.139.41 – 10.239.139.4610.239.139.47
10310.239.139.48/2910.239.139.49 – 10.239.139.5410.239.139.55
10410.239.139.56/2910.239.139.57 – 10.239.139.6210.239.139.63
10510.239.139.64/2910.239.139.65 – 10.239.139.7010.239.139.71
10610.239.139.72/2910.239.139.73 – 10.239.139.7810.239.139.79
10710.239.139.80/2910.239.139.81 – 10.239.139.8610.239.139.87
10810.239.139.88/2910.239.139.89 – 10.239.139.9410.239.139.95
10910.239.139.96/2910.239.139.97 – 10.239.139.10210.239.139.103
11010.239.139.104/2910.239.139.105 – 10.239.139.11010.239.139.111
11110.239.139.112/2910.239.139.113 – 10.239.139.11810.239.139.119
11210.239.139.120/2910.239.139.121 – 10.239.139.12610.239.139.127
11310.239.139.128/2910.239.139.129 – 10.239.139.13410.239.139.135
11410.239.139.136/2910.239.139.137 – 10.239.139.14210.239.139.143
11510.239.139.144/2910.239.139.145 – 10.239.139.15010.239.139.151
11610.239.139.152/2910.239.139.153 – 10.239.139.15810.239.139.159
11710.239.139.160/2910.239.139.161 – 10.239.139.16610.239.139.167
11810.239.139.168/2910.239.139.169 – 10.239.139.17410.239.139.175
11910.239.139.176/2910.239.139.177 – 10.239.139.18210.239.139.183
12010.239.139.184/2910.239.139.185 – 10.239.139.19010.239.139.191
12110.239.139.192/2910.239.139.193 – 10.239.139.19810.239.139.199
12210.239.139.200/2910.239.139.201 – 10.239.139.20610.239.139.207
12310.239.139.208/2910.239.139.209 – 10.239.139.21410.239.139.215
12410.239.139.216/2910.239.139.217 – 10.239.139.22210.239.139.223
12510.239.139.224/2910.239.139.225 – 10.239.139.23010.239.139.231
12610.239.139.232/2910.239.139.233 – 10.239.139.23810.239.139.239
12710.239.139.240/2910.239.139.241 – 10.239.139.24610.239.139.247
12810.239.139.248/2910.239.139.249 – 10.239.139.25410.239.139.255
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 →