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)10.72.92.0/22
network10.72.92.0/22
broadcast10.72.95.255
first host10.72.92.1
last host10.72.95.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.72.92.0/22
address00001010.01001000.01011100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01001000.01011100.00000000
broadcast00001010.01001000.01011111.11111111
green = network part, grey = host part
hex0x0a485c00
decimal172514304
reverse dns0.92.72.10.in-addr.arpa
ipv4-mapped::ffff:a48:5c00

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.72.92.0/2910.72.92.1 – 10.72.92.610.72.92.7
210.72.92.8/2910.72.92.9 – 10.72.92.1410.72.92.15
310.72.92.16/2910.72.92.17 – 10.72.92.2210.72.92.23
410.72.92.24/2910.72.92.25 – 10.72.92.3010.72.92.31
510.72.92.32/2910.72.92.33 – 10.72.92.3810.72.92.39
610.72.92.40/2910.72.92.41 – 10.72.92.4610.72.92.47
710.72.92.48/2910.72.92.49 – 10.72.92.5410.72.92.55
810.72.92.56/2910.72.92.57 – 10.72.92.6210.72.92.63
910.72.92.64/2910.72.92.65 – 10.72.92.7010.72.92.71
1010.72.92.72/2910.72.92.73 – 10.72.92.7810.72.92.79
1110.72.92.80/2910.72.92.81 – 10.72.92.8610.72.92.87
1210.72.92.88/2910.72.92.89 – 10.72.92.9410.72.92.95
1310.72.92.96/2910.72.92.97 – 10.72.92.10210.72.92.103
1410.72.92.104/2910.72.92.105 – 10.72.92.11010.72.92.111
1510.72.92.112/2910.72.92.113 – 10.72.92.11810.72.92.119
1610.72.92.120/2910.72.92.121 – 10.72.92.12610.72.92.127
1710.72.92.128/2910.72.92.129 – 10.72.92.13410.72.92.135
1810.72.92.136/2910.72.92.137 – 10.72.92.14210.72.92.143
1910.72.92.144/2910.72.92.145 – 10.72.92.15010.72.92.151
2010.72.92.152/2910.72.92.153 – 10.72.92.15810.72.92.159
2110.72.92.160/2910.72.92.161 – 10.72.92.16610.72.92.167
2210.72.92.168/2910.72.92.169 – 10.72.92.17410.72.92.175
2310.72.92.176/2910.72.92.177 – 10.72.92.18210.72.92.183
2410.72.92.184/2910.72.92.185 – 10.72.92.19010.72.92.191
2510.72.92.192/2910.72.92.193 – 10.72.92.19810.72.92.199
2610.72.92.200/2910.72.92.201 – 10.72.92.20610.72.92.207
2710.72.92.208/2910.72.92.209 – 10.72.92.21410.72.92.215
2810.72.92.216/2910.72.92.217 – 10.72.92.22210.72.92.223
2910.72.92.224/2910.72.92.225 – 10.72.92.23010.72.92.231
3010.72.92.232/2910.72.92.233 – 10.72.92.23810.72.92.239
3110.72.92.240/2910.72.92.241 – 10.72.92.24610.72.92.247
3210.72.92.248/2910.72.92.249 – 10.72.92.25410.72.92.255
3310.72.93.0/2910.72.93.1 – 10.72.93.610.72.93.7
3410.72.93.8/2910.72.93.9 – 10.72.93.1410.72.93.15
3510.72.93.16/2910.72.93.17 – 10.72.93.2210.72.93.23
3610.72.93.24/2910.72.93.25 – 10.72.93.3010.72.93.31
3710.72.93.32/2910.72.93.33 – 10.72.93.3810.72.93.39
3810.72.93.40/2910.72.93.41 – 10.72.93.4610.72.93.47
3910.72.93.48/2910.72.93.49 – 10.72.93.5410.72.93.55
4010.72.93.56/2910.72.93.57 – 10.72.93.6210.72.93.63
4110.72.93.64/2910.72.93.65 – 10.72.93.7010.72.93.71
4210.72.93.72/2910.72.93.73 – 10.72.93.7810.72.93.79
4310.72.93.80/2910.72.93.81 – 10.72.93.8610.72.93.87
4410.72.93.88/2910.72.93.89 – 10.72.93.9410.72.93.95
4510.72.93.96/2910.72.93.97 – 10.72.93.10210.72.93.103
4610.72.93.104/2910.72.93.105 – 10.72.93.11010.72.93.111
4710.72.93.112/2910.72.93.113 – 10.72.93.11810.72.93.119
4810.72.93.120/2910.72.93.121 – 10.72.93.12610.72.93.127
4910.72.93.128/2910.72.93.129 – 10.72.93.13410.72.93.135
5010.72.93.136/2910.72.93.137 – 10.72.93.14210.72.93.143
5110.72.93.144/2910.72.93.145 – 10.72.93.15010.72.93.151
5210.72.93.152/2910.72.93.153 – 10.72.93.15810.72.93.159
5310.72.93.160/2910.72.93.161 – 10.72.93.16610.72.93.167
5410.72.93.168/2910.72.93.169 – 10.72.93.17410.72.93.175
5510.72.93.176/2910.72.93.177 – 10.72.93.18210.72.93.183
5610.72.93.184/2910.72.93.185 – 10.72.93.19010.72.93.191
5710.72.93.192/2910.72.93.193 – 10.72.93.19810.72.93.199
5810.72.93.200/2910.72.93.201 – 10.72.93.20610.72.93.207
5910.72.93.208/2910.72.93.209 – 10.72.93.21410.72.93.215
6010.72.93.216/2910.72.93.217 – 10.72.93.22210.72.93.223
6110.72.93.224/2910.72.93.225 – 10.72.93.23010.72.93.231
6210.72.93.232/2910.72.93.233 – 10.72.93.23810.72.93.239
6310.72.93.240/2910.72.93.241 – 10.72.93.24610.72.93.247
6410.72.93.248/2910.72.93.249 – 10.72.93.25410.72.93.255
6510.72.94.0/2910.72.94.1 – 10.72.94.610.72.94.7
6610.72.94.8/2910.72.94.9 – 10.72.94.1410.72.94.15
6710.72.94.16/2910.72.94.17 – 10.72.94.2210.72.94.23
6810.72.94.24/2910.72.94.25 – 10.72.94.3010.72.94.31
6910.72.94.32/2910.72.94.33 – 10.72.94.3810.72.94.39
7010.72.94.40/2910.72.94.41 – 10.72.94.4610.72.94.47
7110.72.94.48/2910.72.94.49 – 10.72.94.5410.72.94.55
7210.72.94.56/2910.72.94.57 – 10.72.94.6210.72.94.63
7310.72.94.64/2910.72.94.65 – 10.72.94.7010.72.94.71
7410.72.94.72/2910.72.94.73 – 10.72.94.7810.72.94.79
7510.72.94.80/2910.72.94.81 – 10.72.94.8610.72.94.87
7610.72.94.88/2910.72.94.89 – 10.72.94.9410.72.94.95
7710.72.94.96/2910.72.94.97 – 10.72.94.10210.72.94.103
7810.72.94.104/2910.72.94.105 – 10.72.94.11010.72.94.111
7910.72.94.112/2910.72.94.113 – 10.72.94.11810.72.94.119
8010.72.94.120/2910.72.94.121 – 10.72.94.12610.72.94.127
8110.72.94.128/2910.72.94.129 – 10.72.94.13410.72.94.135
8210.72.94.136/2910.72.94.137 – 10.72.94.14210.72.94.143
8310.72.94.144/2910.72.94.145 – 10.72.94.15010.72.94.151
8410.72.94.152/2910.72.94.153 – 10.72.94.15810.72.94.159
8510.72.94.160/2910.72.94.161 – 10.72.94.16610.72.94.167
8610.72.94.168/2910.72.94.169 – 10.72.94.17410.72.94.175
8710.72.94.176/2910.72.94.177 – 10.72.94.18210.72.94.183
8810.72.94.184/2910.72.94.185 – 10.72.94.19010.72.94.191
8910.72.94.192/2910.72.94.193 – 10.72.94.19810.72.94.199
9010.72.94.200/2910.72.94.201 – 10.72.94.20610.72.94.207
9110.72.94.208/2910.72.94.209 – 10.72.94.21410.72.94.215
9210.72.94.216/2910.72.94.217 – 10.72.94.22210.72.94.223
9310.72.94.224/2910.72.94.225 – 10.72.94.23010.72.94.231
9410.72.94.232/2910.72.94.233 – 10.72.94.23810.72.94.239
9510.72.94.240/2910.72.94.241 – 10.72.94.24610.72.94.247
9610.72.94.248/2910.72.94.249 – 10.72.94.25410.72.94.255
9710.72.95.0/2910.72.95.1 – 10.72.95.610.72.95.7
9810.72.95.8/2910.72.95.9 – 10.72.95.1410.72.95.15
9910.72.95.16/2910.72.95.17 – 10.72.95.2210.72.95.23
10010.72.95.24/2910.72.95.25 – 10.72.95.3010.72.95.31
10110.72.95.32/2910.72.95.33 – 10.72.95.3810.72.95.39
10210.72.95.40/2910.72.95.41 – 10.72.95.4610.72.95.47
10310.72.95.48/2910.72.95.49 – 10.72.95.5410.72.95.55
10410.72.95.56/2910.72.95.57 – 10.72.95.6210.72.95.63
10510.72.95.64/2910.72.95.65 – 10.72.95.7010.72.95.71
10610.72.95.72/2910.72.95.73 – 10.72.95.7810.72.95.79
10710.72.95.80/2910.72.95.81 – 10.72.95.8610.72.95.87
10810.72.95.88/2910.72.95.89 – 10.72.95.9410.72.95.95
10910.72.95.96/2910.72.95.97 – 10.72.95.10210.72.95.103
11010.72.95.104/2910.72.95.105 – 10.72.95.11010.72.95.111
11110.72.95.112/2910.72.95.113 – 10.72.95.11810.72.95.119
11210.72.95.120/2910.72.95.121 – 10.72.95.12610.72.95.127
11310.72.95.128/2910.72.95.129 – 10.72.95.13410.72.95.135
11410.72.95.136/2910.72.95.137 – 10.72.95.14210.72.95.143
11510.72.95.144/2910.72.95.145 – 10.72.95.15010.72.95.151
11610.72.95.152/2910.72.95.153 – 10.72.95.15810.72.95.159
11710.72.95.160/2910.72.95.161 – 10.72.95.16610.72.95.167
11810.72.95.168/2910.72.95.169 – 10.72.95.17410.72.95.175
11910.72.95.176/2910.72.95.177 – 10.72.95.18210.72.95.183
12010.72.95.184/2910.72.95.185 – 10.72.95.19010.72.95.191
12110.72.95.192/2910.72.95.193 – 10.72.95.19810.72.95.199
12210.72.95.200/2910.72.95.201 – 10.72.95.20610.72.95.207
12310.72.95.208/2910.72.95.209 – 10.72.95.21410.72.95.215
12410.72.95.216/2910.72.95.217 – 10.72.95.22210.72.95.223
12510.72.95.224/2910.72.95.225 – 10.72.95.23010.72.95.231
12610.72.95.232/2910.72.95.233 – 10.72.95.23810.72.95.239
12710.72.95.240/2910.72.95.241 – 10.72.95.24610.72.95.247
12810.72.95.248/2910.72.95.249 – 10.72.95.25410.72.95.255
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 →