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)10.239.84.0/22
network10.239.84.0/22
broadcast10.239.87.255
first host10.239.84.1
last host10.239.87.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.239.84.0/22
address00001010.11101111.01010100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.11101111.01010100.00000000
broadcast00001010.11101111.01010111.11111111
green = network part, grey = host part
hex0x0aef5400
decimal183456768
reverse dns0.84.239.10.in-addr.arpa
ipv4-mapped::ffff:aef:5400

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.239.84.0/2910.239.84.1 – 10.239.84.610.239.84.7
210.239.84.8/2910.239.84.9 – 10.239.84.1410.239.84.15
310.239.84.16/2910.239.84.17 – 10.239.84.2210.239.84.23
410.239.84.24/2910.239.84.25 – 10.239.84.3010.239.84.31
510.239.84.32/2910.239.84.33 – 10.239.84.3810.239.84.39
610.239.84.40/2910.239.84.41 – 10.239.84.4610.239.84.47
710.239.84.48/2910.239.84.49 – 10.239.84.5410.239.84.55
810.239.84.56/2910.239.84.57 – 10.239.84.6210.239.84.63
910.239.84.64/2910.239.84.65 – 10.239.84.7010.239.84.71
1010.239.84.72/2910.239.84.73 – 10.239.84.7810.239.84.79
1110.239.84.80/2910.239.84.81 – 10.239.84.8610.239.84.87
1210.239.84.88/2910.239.84.89 – 10.239.84.9410.239.84.95
1310.239.84.96/2910.239.84.97 – 10.239.84.10210.239.84.103
1410.239.84.104/2910.239.84.105 – 10.239.84.11010.239.84.111
1510.239.84.112/2910.239.84.113 – 10.239.84.11810.239.84.119
1610.239.84.120/2910.239.84.121 – 10.239.84.12610.239.84.127
1710.239.84.128/2910.239.84.129 – 10.239.84.13410.239.84.135
1810.239.84.136/2910.239.84.137 – 10.239.84.14210.239.84.143
1910.239.84.144/2910.239.84.145 – 10.239.84.15010.239.84.151
2010.239.84.152/2910.239.84.153 – 10.239.84.15810.239.84.159
2110.239.84.160/2910.239.84.161 – 10.239.84.16610.239.84.167
2210.239.84.168/2910.239.84.169 – 10.239.84.17410.239.84.175
2310.239.84.176/2910.239.84.177 – 10.239.84.18210.239.84.183
2410.239.84.184/2910.239.84.185 – 10.239.84.19010.239.84.191
2510.239.84.192/2910.239.84.193 – 10.239.84.19810.239.84.199
2610.239.84.200/2910.239.84.201 – 10.239.84.20610.239.84.207
2710.239.84.208/2910.239.84.209 – 10.239.84.21410.239.84.215
2810.239.84.216/2910.239.84.217 – 10.239.84.22210.239.84.223
2910.239.84.224/2910.239.84.225 – 10.239.84.23010.239.84.231
3010.239.84.232/2910.239.84.233 – 10.239.84.23810.239.84.239
3110.239.84.240/2910.239.84.241 – 10.239.84.24610.239.84.247
3210.239.84.248/2910.239.84.249 – 10.239.84.25410.239.84.255
3310.239.85.0/2910.239.85.1 – 10.239.85.610.239.85.7
3410.239.85.8/2910.239.85.9 – 10.239.85.1410.239.85.15
3510.239.85.16/2910.239.85.17 – 10.239.85.2210.239.85.23
3610.239.85.24/2910.239.85.25 – 10.239.85.3010.239.85.31
3710.239.85.32/2910.239.85.33 – 10.239.85.3810.239.85.39
3810.239.85.40/2910.239.85.41 – 10.239.85.4610.239.85.47
3910.239.85.48/2910.239.85.49 – 10.239.85.5410.239.85.55
4010.239.85.56/2910.239.85.57 – 10.239.85.6210.239.85.63
4110.239.85.64/2910.239.85.65 – 10.239.85.7010.239.85.71
4210.239.85.72/2910.239.85.73 – 10.239.85.7810.239.85.79
4310.239.85.80/2910.239.85.81 – 10.239.85.8610.239.85.87
4410.239.85.88/2910.239.85.89 – 10.239.85.9410.239.85.95
4510.239.85.96/2910.239.85.97 – 10.239.85.10210.239.85.103
4610.239.85.104/2910.239.85.105 – 10.239.85.11010.239.85.111
4710.239.85.112/2910.239.85.113 – 10.239.85.11810.239.85.119
4810.239.85.120/2910.239.85.121 – 10.239.85.12610.239.85.127
4910.239.85.128/2910.239.85.129 – 10.239.85.13410.239.85.135
5010.239.85.136/2910.239.85.137 – 10.239.85.14210.239.85.143
5110.239.85.144/2910.239.85.145 – 10.239.85.15010.239.85.151
5210.239.85.152/2910.239.85.153 – 10.239.85.15810.239.85.159
5310.239.85.160/2910.239.85.161 – 10.239.85.16610.239.85.167
5410.239.85.168/2910.239.85.169 – 10.239.85.17410.239.85.175
5510.239.85.176/2910.239.85.177 – 10.239.85.18210.239.85.183
5610.239.85.184/2910.239.85.185 – 10.239.85.19010.239.85.191
5710.239.85.192/2910.239.85.193 – 10.239.85.19810.239.85.199
5810.239.85.200/2910.239.85.201 – 10.239.85.20610.239.85.207
5910.239.85.208/2910.239.85.209 – 10.239.85.21410.239.85.215
6010.239.85.216/2910.239.85.217 – 10.239.85.22210.239.85.223
6110.239.85.224/2910.239.85.225 – 10.239.85.23010.239.85.231
6210.239.85.232/2910.239.85.233 – 10.239.85.23810.239.85.239
6310.239.85.240/2910.239.85.241 – 10.239.85.24610.239.85.247
6410.239.85.248/2910.239.85.249 – 10.239.85.25410.239.85.255
6510.239.86.0/2910.239.86.1 – 10.239.86.610.239.86.7
6610.239.86.8/2910.239.86.9 – 10.239.86.1410.239.86.15
6710.239.86.16/2910.239.86.17 – 10.239.86.2210.239.86.23
6810.239.86.24/2910.239.86.25 – 10.239.86.3010.239.86.31
6910.239.86.32/2910.239.86.33 – 10.239.86.3810.239.86.39
7010.239.86.40/2910.239.86.41 – 10.239.86.4610.239.86.47
7110.239.86.48/2910.239.86.49 – 10.239.86.5410.239.86.55
7210.239.86.56/2910.239.86.57 – 10.239.86.6210.239.86.63
7310.239.86.64/2910.239.86.65 – 10.239.86.7010.239.86.71
7410.239.86.72/2910.239.86.73 – 10.239.86.7810.239.86.79
7510.239.86.80/2910.239.86.81 – 10.239.86.8610.239.86.87
7610.239.86.88/2910.239.86.89 – 10.239.86.9410.239.86.95
7710.239.86.96/2910.239.86.97 – 10.239.86.10210.239.86.103
7810.239.86.104/2910.239.86.105 – 10.239.86.11010.239.86.111
7910.239.86.112/2910.239.86.113 – 10.239.86.11810.239.86.119
8010.239.86.120/2910.239.86.121 – 10.239.86.12610.239.86.127
8110.239.86.128/2910.239.86.129 – 10.239.86.13410.239.86.135
8210.239.86.136/2910.239.86.137 – 10.239.86.14210.239.86.143
8310.239.86.144/2910.239.86.145 – 10.239.86.15010.239.86.151
8410.239.86.152/2910.239.86.153 – 10.239.86.15810.239.86.159
8510.239.86.160/2910.239.86.161 – 10.239.86.16610.239.86.167
8610.239.86.168/2910.239.86.169 – 10.239.86.17410.239.86.175
8710.239.86.176/2910.239.86.177 – 10.239.86.18210.239.86.183
8810.239.86.184/2910.239.86.185 – 10.239.86.19010.239.86.191
8910.239.86.192/2910.239.86.193 – 10.239.86.19810.239.86.199
9010.239.86.200/2910.239.86.201 – 10.239.86.20610.239.86.207
9110.239.86.208/2910.239.86.209 – 10.239.86.21410.239.86.215
9210.239.86.216/2910.239.86.217 – 10.239.86.22210.239.86.223
9310.239.86.224/2910.239.86.225 – 10.239.86.23010.239.86.231
9410.239.86.232/2910.239.86.233 – 10.239.86.23810.239.86.239
9510.239.86.240/2910.239.86.241 – 10.239.86.24610.239.86.247
9610.239.86.248/2910.239.86.249 – 10.239.86.25410.239.86.255
9710.239.87.0/2910.239.87.1 – 10.239.87.610.239.87.7
9810.239.87.8/2910.239.87.9 – 10.239.87.1410.239.87.15
9910.239.87.16/2910.239.87.17 – 10.239.87.2210.239.87.23
10010.239.87.24/2910.239.87.25 – 10.239.87.3010.239.87.31
10110.239.87.32/2910.239.87.33 – 10.239.87.3810.239.87.39
10210.239.87.40/2910.239.87.41 – 10.239.87.4610.239.87.47
10310.239.87.48/2910.239.87.49 – 10.239.87.5410.239.87.55
10410.239.87.56/2910.239.87.57 – 10.239.87.6210.239.87.63
10510.239.87.64/2910.239.87.65 – 10.239.87.7010.239.87.71
10610.239.87.72/2910.239.87.73 – 10.239.87.7810.239.87.79
10710.239.87.80/2910.239.87.81 – 10.239.87.8610.239.87.87
10810.239.87.88/2910.239.87.89 – 10.239.87.9410.239.87.95
10910.239.87.96/2910.239.87.97 – 10.239.87.10210.239.87.103
11010.239.87.104/2910.239.87.105 – 10.239.87.11010.239.87.111
11110.239.87.112/2910.239.87.113 – 10.239.87.11810.239.87.119
11210.239.87.120/2910.239.87.121 – 10.239.87.12610.239.87.127
11310.239.87.128/2910.239.87.129 – 10.239.87.13410.239.87.135
11410.239.87.136/2910.239.87.137 – 10.239.87.14210.239.87.143
11510.239.87.144/2910.239.87.145 – 10.239.87.15010.239.87.151
11610.239.87.152/2910.239.87.153 – 10.239.87.15810.239.87.159
11710.239.87.160/2910.239.87.161 – 10.239.87.16610.239.87.167
11810.239.87.168/2910.239.87.169 – 10.239.87.17410.239.87.175
11910.239.87.176/2910.239.87.177 – 10.239.87.18210.239.87.183
12010.239.87.184/2910.239.87.185 – 10.239.87.19010.239.87.191
12110.239.87.192/2910.239.87.193 – 10.239.87.19810.239.87.199
12210.239.87.200/2910.239.87.201 – 10.239.87.20610.239.87.207
12310.239.87.208/2910.239.87.209 – 10.239.87.21410.239.87.215
12410.239.87.216/2910.239.87.217 – 10.239.87.22210.239.87.223
12510.239.87.224/2910.239.87.225 – 10.239.87.23010.239.87.231
12610.239.87.232/2910.239.87.233 – 10.239.87.23810.239.87.239
12710.239.87.240/2910.239.87.241 – 10.239.87.24610.239.87.247
12810.239.87.248/2910.239.87.249 – 10.239.87.25410.239.87.255
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 →