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)10.71.88.0/22
network10.71.88.0/22
broadcast10.71.91.255
first host10.71.88.1
last host10.71.91.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.71.88.0/22
address00001010.01000111.01011000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01000111.01011000.00000000
broadcast00001010.01000111.01011011.11111111
green = network part, grey = host part
hex0x0a475800
decimal172447744
reverse dns0.88.71.10.in-addr.arpa
ipv4-mapped::ffff:a47:5800

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.71.88.0/2910.71.88.1 – 10.71.88.610.71.88.7
210.71.88.8/2910.71.88.9 – 10.71.88.1410.71.88.15
310.71.88.16/2910.71.88.17 – 10.71.88.2210.71.88.23
410.71.88.24/2910.71.88.25 – 10.71.88.3010.71.88.31
510.71.88.32/2910.71.88.33 – 10.71.88.3810.71.88.39
610.71.88.40/2910.71.88.41 – 10.71.88.4610.71.88.47
710.71.88.48/2910.71.88.49 – 10.71.88.5410.71.88.55
810.71.88.56/2910.71.88.57 – 10.71.88.6210.71.88.63
910.71.88.64/2910.71.88.65 – 10.71.88.7010.71.88.71
1010.71.88.72/2910.71.88.73 – 10.71.88.7810.71.88.79
1110.71.88.80/2910.71.88.81 – 10.71.88.8610.71.88.87
1210.71.88.88/2910.71.88.89 – 10.71.88.9410.71.88.95
1310.71.88.96/2910.71.88.97 – 10.71.88.10210.71.88.103
1410.71.88.104/2910.71.88.105 – 10.71.88.11010.71.88.111
1510.71.88.112/2910.71.88.113 – 10.71.88.11810.71.88.119
1610.71.88.120/2910.71.88.121 – 10.71.88.12610.71.88.127
1710.71.88.128/2910.71.88.129 – 10.71.88.13410.71.88.135
1810.71.88.136/2910.71.88.137 – 10.71.88.14210.71.88.143
1910.71.88.144/2910.71.88.145 – 10.71.88.15010.71.88.151
2010.71.88.152/2910.71.88.153 – 10.71.88.15810.71.88.159
2110.71.88.160/2910.71.88.161 – 10.71.88.16610.71.88.167
2210.71.88.168/2910.71.88.169 – 10.71.88.17410.71.88.175
2310.71.88.176/2910.71.88.177 – 10.71.88.18210.71.88.183
2410.71.88.184/2910.71.88.185 – 10.71.88.19010.71.88.191
2510.71.88.192/2910.71.88.193 – 10.71.88.19810.71.88.199
2610.71.88.200/2910.71.88.201 – 10.71.88.20610.71.88.207
2710.71.88.208/2910.71.88.209 – 10.71.88.21410.71.88.215
2810.71.88.216/2910.71.88.217 – 10.71.88.22210.71.88.223
2910.71.88.224/2910.71.88.225 – 10.71.88.23010.71.88.231
3010.71.88.232/2910.71.88.233 – 10.71.88.23810.71.88.239
3110.71.88.240/2910.71.88.241 – 10.71.88.24610.71.88.247
3210.71.88.248/2910.71.88.249 – 10.71.88.25410.71.88.255
3310.71.89.0/2910.71.89.1 – 10.71.89.610.71.89.7
3410.71.89.8/2910.71.89.9 – 10.71.89.1410.71.89.15
3510.71.89.16/2910.71.89.17 – 10.71.89.2210.71.89.23
3610.71.89.24/2910.71.89.25 – 10.71.89.3010.71.89.31
3710.71.89.32/2910.71.89.33 – 10.71.89.3810.71.89.39
3810.71.89.40/2910.71.89.41 – 10.71.89.4610.71.89.47
3910.71.89.48/2910.71.89.49 – 10.71.89.5410.71.89.55
4010.71.89.56/2910.71.89.57 – 10.71.89.6210.71.89.63
4110.71.89.64/2910.71.89.65 – 10.71.89.7010.71.89.71
4210.71.89.72/2910.71.89.73 – 10.71.89.7810.71.89.79
4310.71.89.80/2910.71.89.81 – 10.71.89.8610.71.89.87
4410.71.89.88/2910.71.89.89 – 10.71.89.9410.71.89.95
4510.71.89.96/2910.71.89.97 – 10.71.89.10210.71.89.103
4610.71.89.104/2910.71.89.105 – 10.71.89.11010.71.89.111
4710.71.89.112/2910.71.89.113 – 10.71.89.11810.71.89.119
4810.71.89.120/2910.71.89.121 – 10.71.89.12610.71.89.127
4910.71.89.128/2910.71.89.129 – 10.71.89.13410.71.89.135
5010.71.89.136/2910.71.89.137 – 10.71.89.14210.71.89.143
5110.71.89.144/2910.71.89.145 – 10.71.89.15010.71.89.151
5210.71.89.152/2910.71.89.153 – 10.71.89.15810.71.89.159
5310.71.89.160/2910.71.89.161 – 10.71.89.16610.71.89.167
5410.71.89.168/2910.71.89.169 – 10.71.89.17410.71.89.175
5510.71.89.176/2910.71.89.177 – 10.71.89.18210.71.89.183
5610.71.89.184/2910.71.89.185 – 10.71.89.19010.71.89.191
5710.71.89.192/2910.71.89.193 – 10.71.89.19810.71.89.199
5810.71.89.200/2910.71.89.201 – 10.71.89.20610.71.89.207
5910.71.89.208/2910.71.89.209 – 10.71.89.21410.71.89.215
6010.71.89.216/2910.71.89.217 – 10.71.89.22210.71.89.223
6110.71.89.224/2910.71.89.225 – 10.71.89.23010.71.89.231
6210.71.89.232/2910.71.89.233 – 10.71.89.23810.71.89.239
6310.71.89.240/2910.71.89.241 – 10.71.89.24610.71.89.247
6410.71.89.248/2910.71.89.249 – 10.71.89.25410.71.89.255
6510.71.90.0/2910.71.90.1 – 10.71.90.610.71.90.7
6610.71.90.8/2910.71.90.9 – 10.71.90.1410.71.90.15
6710.71.90.16/2910.71.90.17 – 10.71.90.2210.71.90.23
6810.71.90.24/2910.71.90.25 – 10.71.90.3010.71.90.31
6910.71.90.32/2910.71.90.33 – 10.71.90.3810.71.90.39
7010.71.90.40/2910.71.90.41 – 10.71.90.4610.71.90.47
7110.71.90.48/2910.71.90.49 – 10.71.90.5410.71.90.55
7210.71.90.56/2910.71.90.57 – 10.71.90.6210.71.90.63
7310.71.90.64/2910.71.90.65 – 10.71.90.7010.71.90.71
7410.71.90.72/2910.71.90.73 – 10.71.90.7810.71.90.79
7510.71.90.80/2910.71.90.81 – 10.71.90.8610.71.90.87
7610.71.90.88/2910.71.90.89 – 10.71.90.9410.71.90.95
7710.71.90.96/2910.71.90.97 – 10.71.90.10210.71.90.103
7810.71.90.104/2910.71.90.105 – 10.71.90.11010.71.90.111
7910.71.90.112/2910.71.90.113 – 10.71.90.11810.71.90.119
8010.71.90.120/2910.71.90.121 – 10.71.90.12610.71.90.127
8110.71.90.128/2910.71.90.129 – 10.71.90.13410.71.90.135
8210.71.90.136/2910.71.90.137 – 10.71.90.14210.71.90.143
8310.71.90.144/2910.71.90.145 – 10.71.90.15010.71.90.151
8410.71.90.152/2910.71.90.153 – 10.71.90.15810.71.90.159
8510.71.90.160/2910.71.90.161 – 10.71.90.16610.71.90.167
8610.71.90.168/2910.71.90.169 – 10.71.90.17410.71.90.175
8710.71.90.176/2910.71.90.177 – 10.71.90.18210.71.90.183
8810.71.90.184/2910.71.90.185 – 10.71.90.19010.71.90.191
8910.71.90.192/2910.71.90.193 – 10.71.90.19810.71.90.199
9010.71.90.200/2910.71.90.201 – 10.71.90.20610.71.90.207
9110.71.90.208/2910.71.90.209 – 10.71.90.21410.71.90.215
9210.71.90.216/2910.71.90.217 – 10.71.90.22210.71.90.223
9310.71.90.224/2910.71.90.225 – 10.71.90.23010.71.90.231
9410.71.90.232/2910.71.90.233 – 10.71.90.23810.71.90.239
9510.71.90.240/2910.71.90.241 – 10.71.90.24610.71.90.247
9610.71.90.248/2910.71.90.249 – 10.71.90.25410.71.90.255
9710.71.91.0/2910.71.91.1 – 10.71.91.610.71.91.7
9810.71.91.8/2910.71.91.9 – 10.71.91.1410.71.91.15
9910.71.91.16/2910.71.91.17 – 10.71.91.2210.71.91.23
10010.71.91.24/2910.71.91.25 – 10.71.91.3010.71.91.31
10110.71.91.32/2910.71.91.33 – 10.71.91.3810.71.91.39
10210.71.91.40/2910.71.91.41 – 10.71.91.4610.71.91.47
10310.71.91.48/2910.71.91.49 – 10.71.91.5410.71.91.55
10410.71.91.56/2910.71.91.57 – 10.71.91.6210.71.91.63
10510.71.91.64/2910.71.91.65 – 10.71.91.7010.71.91.71
10610.71.91.72/2910.71.91.73 – 10.71.91.7810.71.91.79
10710.71.91.80/2910.71.91.81 – 10.71.91.8610.71.91.87
10810.71.91.88/2910.71.91.89 – 10.71.91.9410.71.91.95
10910.71.91.96/2910.71.91.97 – 10.71.91.10210.71.91.103
11010.71.91.104/2910.71.91.105 – 10.71.91.11010.71.91.111
11110.71.91.112/2910.71.91.113 – 10.71.91.11810.71.91.119
11210.71.91.120/2910.71.91.121 – 10.71.91.12610.71.91.127
11310.71.91.128/2910.71.91.129 – 10.71.91.13410.71.91.135
11410.71.91.136/2910.71.91.137 – 10.71.91.14210.71.91.143
11510.71.91.144/2910.71.91.145 – 10.71.91.15010.71.91.151
11610.71.91.152/2910.71.91.153 – 10.71.91.15810.71.91.159
11710.71.91.160/2910.71.91.161 – 10.71.91.16610.71.91.167
11810.71.91.168/2910.71.91.169 – 10.71.91.17410.71.91.175
11910.71.91.176/2910.71.91.177 – 10.71.91.18210.71.91.183
12010.71.91.184/2910.71.91.185 – 10.71.91.19010.71.91.191
12110.71.91.192/2910.71.91.193 – 10.71.91.19810.71.91.199
12210.71.91.200/2910.71.91.201 – 10.71.91.20610.71.91.207
12310.71.91.208/2910.71.91.209 – 10.71.91.21410.71.91.215
12410.71.91.216/2910.71.91.217 – 10.71.91.22210.71.91.223
12510.71.91.224/2910.71.91.225 – 10.71.91.23010.71.91.231
12610.71.91.232/2910.71.91.233 – 10.71.91.23810.71.91.239
12710.71.91.240/2910.71.91.241 – 10.71.91.24610.71.91.247
12810.71.91.248/2910.71.91.249 – 10.71.91.25410.71.91.255
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 →