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)10.71.32.0/22
network10.71.32.0/22
broadcast10.71.35.255
first host10.71.32.1
last host10.71.35.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.71.32.0/22
address00001010.01000111.00100000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01000111.00100000.00000000
broadcast00001010.01000111.00100011.11111111
green = network part, grey = host part
hex0x0a472000
decimal172433408
reverse dns0.32.71.10.in-addr.arpa
ipv4-mapped::ffff:a47:2000

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.71.32.0/2910.71.32.1 – 10.71.32.610.71.32.7
210.71.32.8/2910.71.32.9 – 10.71.32.1410.71.32.15
310.71.32.16/2910.71.32.17 – 10.71.32.2210.71.32.23
410.71.32.24/2910.71.32.25 – 10.71.32.3010.71.32.31
510.71.32.32/2910.71.32.33 – 10.71.32.3810.71.32.39
610.71.32.40/2910.71.32.41 – 10.71.32.4610.71.32.47
710.71.32.48/2910.71.32.49 – 10.71.32.5410.71.32.55
810.71.32.56/2910.71.32.57 – 10.71.32.6210.71.32.63
910.71.32.64/2910.71.32.65 – 10.71.32.7010.71.32.71
1010.71.32.72/2910.71.32.73 – 10.71.32.7810.71.32.79
1110.71.32.80/2910.71.32.81 – 10.71.32.8610.71.32.87
1210.71.32.88/2910.71.32.89 – 10.71.32.9410.71.32.95
1310.71.32.96/2910.71.32.97 – 10.71.32.10210.71.32.103
1410.71.32.104/2910.71.32.105 – 10.71.32.11010.71.32.111
1510.71.32.112/2910.71.32.113 – 10.71.32.11810.71.32.119
1610.71.32.120/2910.71.32.121 – 10.71.32.12610.71.32.127
1710.71.32.128/2910.71.32.129 – 10.71.32.13410.71.32.135
1810.71.32.136/2910.71.32.137 – 10.71.32.14210.71.32.143
1910.71.32.144/2910.71.32.145 – 10.71.32.15010.71.32.151
2010.71.32.152/2910.71.32.153 – 10.71.32.15810.71.32.159
2110.71.32.160/2910.71.32.161 – 10.71.32.16610.71.32.167
2210.71.32.168/2910.71.32.169 – 10.71.32.17410.71.32.175
2310.71.32.176/2910.71.32.177 – 10.71.32.18210.71.32.183
2410.71.32.184/2910.71.32.185 – 10.71.32.19010.71.32.191
2510.71.32.192/2910.71.32.193 – 10.71.32.19810.71.32.199
2610.71.32.200/2910.71.32.201 – 10.71.32.20610.71.32.207
2710.71.32.208/2910.71.32.209 – 10.71.32.21410.71.32.215
2810.71.32.216/2910.71.32.217 – 10.71.32.22210.71.32.223
2910.71.32.224/2910.71.32.225 – 10.71.32.23010.71.32.231
3010.71.32.232/2910.71.32.233 – 10.71.32.23810.71.32.239
3110.71.32.240/2910.71.32.241 – 10.71.32.24610.71.32.247
3210.71.32.248/2910.71.32.249 – 10.71.32.25410.71.32.255
3310.71.33.0/2910.71.33.1 – 10.71.33.610.71.33.7
3410.71.33.8/2910.71.33.9 – 10.71.33.1410.71.33.15
3510.71.33.16/2910.71.33.17 – 10.71.33.2210.71.33.23
3610.71.33.24/2910.71.33.25 – 10.71.33.3010.71.33.31
3710.71.33.32/2910.71.33.33 – 10.71.33.3810.71.33.39
3810.71.33.40/2910.71.33.41 – 10.71.33.4610.71.33.47
3910.71.33.48/2910.71.33.49 – 10.71.33.5410.71.33.55
4010.71.33.56/2910.71.33.57 – 10.71.33.6210.71.33.63
4110.71.33.64/2910.71.33.65 – 10.71.33.7010.71.33.71
4210.71.33.72/2910.71.33.73 – 10.71.33.7810.71.33.79
4310.71.33.80/2910.71.33.81 – 10.71.33.8610.71.33.87
4410.71.33.88/2910.71.33.89 – 10.71.33.9410.71.33.95
4510.71.33.96/2910.71.33.97 – 10.71.33.10210.71.33.103
4610.71.33.104/2910.71.33.105 – 10.71.33.11010.71.33.111
4710.71.33.112/2910.71.33.113 – 10.71.33.11810.71.33.119
4810.71.33.120/2910.71.33.121 – 10.71.33.12610.71.33.127
4910.71.33.128/2910.71.33.129 – 10.71.33.13410.71.33.135
5010.71.33.136/2910.71.33.137 – 10.71.33.14210.71.33.143
5110.71.33.144/2910.71.33.145 – 10.71.33.15010.71.33.151
5210.71.33.152/2910.71.33.153 – 10.71.33.15810.71.33.159
5310.71.33.160/2910.71.33.161 – 10.71.33.16610.71.33.167
5410.71.33.168/2910.71.33.169 – 10.71.33.17410.71.33.175
5510.71.33.176/2910.71.33.177 – 10.71.33.18210.71.33.183
5610.71.33.184/2910.71.33.185 – 10.71.33.19010.71.33.191
5710.71.33.192/2910.71.33.193 – 10.71.33.19810.71.33.199
5810.71.33.200/2910.71.33.201 – 10.71.33.20610.71.33.207
5910.71.33.208/2910.71.33.209 – 10.71.33.21410.71.33.215
6010.71.33.216/2910.71.33.217 – 10.71.33.22210.71.33.223
6110.71.33.224/2910.71.33.225 – 10.71.33.23010.71.33.231
6210.71.33.232/2910.71.33.233 – 10.71.33.23810.71.33.239
6310.71.33.240/2910.71.33.241 – 10.71.33.24610.71.33.247
6410.71.33.248/2910.71.33.249 – 10.71.33.25410.71.33.255
6510.71.34.0/2910.71.34.1 – 10.71.34.610.71.34.7
6610.71.34.8/2910.71.34.9 – 10.71.34.1410.71.34.15
6710.71.34.16/2910.71.34.17 – 10.71.34.2210.71.34.23
6810.71.34.24/2910.71.34.25 – 10.71.34.3010.71.34.31
6910.71.34.32/2910.71.34.33 – 10.71.34.3810.71.34.39
7010.71.34.40/2910.71.34.41 – 10.71.34.4610.71.34.47
7110.71.34.48/2910.71.34.49 – 10.71.34.5410.71.34.55
7210.71.34.56/2910.71.34.57 – 10.71.34.6210.71.34.63
7310.71.34.64/2910.71.34.65 – 10.71.34.7010.71.34.71
7410.71.34.72/2910.71.34.73 – 10.71.34.7810.71.34.79
7510.71.34.80/2910.71.34.81 – 10.71.34.8610.71.34.87
7610.71.34.88/2910.71.34.89 – 10.71.34.9410.71.34.95
7710.71.34.96/2910.71.34.97 – 10.71.34.10210.71.34.103
7810.71.34.104/2910.71.34.105 – 10.71.34.11010.71.34.111
7910.71.34.112/2910.71.34.113 – 10.71.34.11810.71.34.119
8010.71.34.120/2910.71.34.121 – 10.71.34.12610.71.34.127
8110.71.34.128/2910.71.34.129 – 10.71.34.13410.71.34.135
8210.71.34.136/2910.71.34.137 – 10.71.34.14210.71.34.143
8310.71.34.144/2910.71.34.145 – 10.71.34.15010.71.34.151
8410.71.34.152/2910.71.34.153 – 10.71.34.15810.71.34.159
8510.71.34.160/2910.71.34.161 – 10.71.34.16610.71.34.167
8610.71.34.168/2910.71.34.169 – 10.71.34.17410.71.34.175
8710.71.34.176/2910.71.34.177 – 10.71.34.18210.71.34.183
8810.71.34.184/2910.71.34.185 – 10.71.34.19010.71.34.191
8910.71.34.192/2910.71.34.193 – 10.71.34.19810.71.34.199
9010.71.34.200/2910.71.34.201 – 10.71.34.20610.71.34.207
9110.71.34.208/2910.71.34.209 – 10.71.34.21410.71.34.215
9210.71.34.216/2910.71.34.217 – 10.71.34.22210.71.34.223
9310.71.34.224/2910.71.34.225 – 10.71.34.23010.71.34.231
9410.71.34.232/2910.71.34.233 – 10.71.34.23810.71.34.239
9510.71.34.240/2910.71.34.241 – 10.71.34.24610.71.34.247
9610.71.34.248/2910.71.34.249 – 10.71.34.25410.71.34.255
9710.71.35.0/2910.71.35.1 – 10.71.35.610.71.35.7
9810.71.35.8/2910.71.35.9 – 10.71.35.1410.71.35.15
9910.71.35.16/2910.71.35.17 – 10.71.35.2210.71.35.23
10010.71.35.24/2910.71.35.25 – 10.71.35.3010.71.35.31
10110.71.35.32/2910.71.35.33 – 10.71.35.3810.71.35.39
10210.71.35.40/2910.71.35.41 – 10.71.35.4610.71.35.47
10310.71.35.48/2910.71.35.49 – 10.71.35.5410.71.35.55
10410.71.35.56/2910.71.35.57 – 10.71.35.6210.71.35.63
10510.71.35.64/2910.71.35.65 – 10.71.35.7010.71.35.71
10610.71.35.72/2910.71.35.73 – 10.71.35.7810.71.35.79
10710.71.35.80/2910.71.35.81 – 10.71.35.8610.71.35.87
10810.71.35.88/2910.71.35.89 – 10.71.35.9410.71.35.95
10910.71.35.96/2910.71.35.97 – 10.71.35.10210.71.35.103
11010.71.35.104/2910.71.35.105 – 10.71.35.11010.71.35.111
11110.71.35.112/2910.71.35.113 – 10.71.35.11810.71.35.119
11210.71.35.120/2910.71.35.121 – 10.71.35.12610.71.35.127
11310.71.35.128/2910.71.35.129 – 10.71.35.13410.71.35.135
11410.71.35.136/2910.71.35.137 – 10.71.35.14210.71.35.143
11510.71.35.144/2910.71.35.145 – 10.71.35.15010.71.35.151
11610.71.35.152/2910.71.35.153 – 10.71.35.15810.71.35.159
11710.71.35.160/2910.71.35.161 – 10.71.35.16610.71.35.167
11810.71.35.168/2910.71.35.169 – 10.71.35.17410.71.35.175
11910.71.35.176/2910.71.35.177 – 10.71.35.18210.71.35.183
12010.71.35.184/2910.71.35.185 – 10.71.35.19010.71.35.191
12110.71.35.192/2910.71.35.193 – 10.71.35.19810.71.35.199
12210.71.35.200/2910.71.35.201 – 10.71.35.20610.71.35.207
12310.71.35.208/2910.71.35.209 – 10.71.35.21410.71.35.215
12410.71.35.216/2910.71.35.217 – 10.71.35.22210.71.35.223
12510.71.35.224/2910.71.35.225 – 10.71.35.23010.71.35.231
12610.71.35.232/2910.71.35.233 – 10.71.35.23810.71.35.239
12710.71.35.240/2910.71.35.241 – 10.71.35.24610.71.35.247
12810.71.35.248/2910.71.35.249 – 10.71.35.25410.71.35.255
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 →