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)10.166.236.0/22
network10.166.236.0/22
broadcast10.166.239.255
first host10.166.236.1
last host10.166.239.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.166.236.0/22
address00001010.10100110.11101100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.10100110.11101100.00000000
broadcast00001010.10100110.11101111.11111111
green = network part, grey = host part
hex0x0aa6ec00
decimal178711552
reverse dns0.236.166.10.in-addr.arpa
ipv4-mapped::ffff:aa6:ec00

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.166.236.0/2910.166.236.1 – 10.166.236.610.166.236.7
210.166.236.8/2910.166.236.9 – 10.166.236.1410.166.236.15
310.166.236.16/2910.166.236.17 – 10.166.236.2210.166.236.23
410.166.236.24/2910.166.236.25 – 10.166.236.3010.166.236.31
510.166.236.32/2910.166.236.33 – 10.166.236.3810.166.236.39
610.166.236.40/2910.166.236.41 – 10.166.236.4610.166.236.47
710.166.236.48/2910.166.236.49 – 10.166.236.5410.166.236.55
810.166.236.56/2910.166.236.57 – 10.166.236.6210.166.236.63
910.166.236.64/2910.166.236.65 – 10.166.236.7010.166.236.71
1010.166.236.72/2910.166.236.73 – 10.166.236.7810.166.236.79
1110.166.236.80/2910.166.236.81 – 10.166.236.8610.166.236.87
1210.166.236.88/2910.166.236.89 – 10.166.236.9410.166.236.95
1310.166.236.96/2910.166.236.97 – 10.166.236.10210.166.236.103
1410.166.236.104/2910.166.236.105 – 10.166.236.11010.166.236.111
1510.166.236.112/2910.166.236.113 – 10.166.236.11810.166.236.119
1610.166.236.120/2910.166.236.121 – 10.166.236.12610.166.236.127
1710.166.236.128/2910.166.236.129 – 10.166.236.13410.166.236.135
1810.166.236.136/2910.166.236.137 – 10.166.236.14210.166.236.143
1910.166.236.144/2910.166.236.145 – 10.166.236.15010.166.236.151
2010.166.236.152/2910.166.236.153 – 10.166.236.15810.166.236.159
2110.166.236.160/2910.166.236.161 – 10.166.236.16610.166.236.167
2210.166.236.168/2910.166.236.169 – 10.166.236.17410.166.236.175
2310.166.236.176/2910.166.236.177 – 10.166.236.18210.166.236.183
2410.166.236.184/2910.166.236.185 – 10.166.236.19010.166.236.191
2510.166.236.192/2910.166.236.193 – 10.166.236.19810.166.236.199
2610.166.236.200/2910.166.236.201 – 10.166.236.20610.166.236.207
2710.166.236.208/2910.166.236.209 – 10.166.236.21410.166.236.215
2810.166.236.216/2910.166.236.217 – 10.166.236.22210.166.236.223
2910.166.236.224/2910.166.236.225 – 10.166.236.23010.166.236.231
3010.166.236.232/2910.166.236.233 – 10.166.236.23810.166.236.239
3110.166.236.240/2910.166.236.241 – 10.166.236.24610.166.236.247
3210.166.236.248/2910.166.236.249 – 10.166.236.25410.166.236.255
3310.166.237.0/2910.166.237.1 – 10.166.237.610.166.237.7
3410.166.237.8/2910.166.237.9 – 10.166.237.1410.166.237.15
3510.166.237.16/2910.166.237.17 – 10.166.237.2210.166.237.23
3610.166.237.24/2910.166.237.25 – 10.166.237.3010.166.237.31
3710.166.237.32/2910.166.237.33 – 10.166.237.3810.166.237.39
3810.166.237.40/2910.166.237.41 – 10.166.237.4610.166.237.47
3910.166.237.48/2910.166.237.49 – 10.166.237.5410.166.237.55
4010.166.237.56/2910.166.237.57 – 10.166.237.6210.166.237.63
4110.166.237.64/2910.166.237.65 – 10.166.237.7010.166.237.71
4210.166.237.72/2910.166.237.73 – 10.166.237.7810.166.237.79
4310.166.237.80/2910.166.237.81 – 10.166.237.8610.166.237.87
4410.166.237.88/2910.166.237.89 – 10.166.237.9410.166.237.95
4510.166.237.96/2910.166.237.97 – 10.166.237.10210.166.237.103
4610.166.237.104/2910.166.237.105 – 10.166.237.11010.166.237.111
4710.166.237.112/2910.166.237.113 – 10.166.237.11810.166.237.119
4810.166.237.120/2910.166.237.121 – 10.166.237.12610.166.237.127
4910.166.237.128/2910.166.237.129 – 10.166.237.13410.166.237.135
5010.166.237.136/2910.166.237.137 – 10.166.237.14210.166.237.143
5110.166.237.144/2910.166.237.145 – 10.166.237.15010.166.237.151
5210.166.237.152/2910.166.237.153 – 10.166.237.15810.166.237.159
5310.166.237.160/2910.166.237.161 – 10.166.237.16610.166.237.167
5410.166.237.168/2910.166.237.169 – 10.166.237.17410.166.237.175
5510.166.237.176/2910.166.237.177 – 10.166.237.18210.166.237.183
5610.166.237.184/2910.166.237.185 – 10.166.237.19010.166.237.191
5710.166.237.192/2910.166.237.193 – 10.166.237.19810.166.237.199
5810.166.237.200/2910.166.237.201 – 10.166.237.20610.166.237.207
5910.166.237.208/2910.166.237.209 – 10.166.237.21410.166.237.215
6010.166.237.216/2910.166.237.217 – 10.166.237.22210.166.237.223
6110.166.237.224/2910.166.237.225 – 10.166.237.23010.166.237.231
6210.166.237.232/2910.166.237.233 – 10.166.237.23810.166.237.239
6310.166.237.240/2910.166.237.241 – 10.166.237.24610.166.237.247
6410.166.237.248/2910.166.237.249 – 10.166.237.25410.166.237.255
6510.166.238.0/2910.166.238.1 – 10.166.238.610.166.238.7
6610.166.238.8/2910.166.238.9 – 10.166.238.1410.166.238.15
6710.166.238.16/2910.166.238.17 – 10.166.238.2210.166.238.23
6810.166.238.24/2910.166.238.25 – 10.166.238.3010.166.238.31
6910.166.238.32/2910.166.238.33 – 10.166.238.3810.166.238.39
7010.166.238.40/2910.166.238.41 – 10.166.238.4610.166.238.47
7110.166.238.48/2910.166.238.49 – 10.166.238.5410.166.238.55
7210.166.238.56/2910.166.238.57 – 10.166.238.6210.166.238.63
7310.166.238.64/2910.166.238.65 – 10.166.238.7010.166.238.71
7410.166.238.72/2910.166.238.73 – 10.166.238.7810.166.238.79
7510.166.238.80/2910.166.238.81 – 10.166.238.8610.166.238.87
7610.166.238.88/2910.166.238.89 – 10.166.238.9410.166.238.95
7710.166.238.96/2910.166.238.97 – 10.166.238.10210.166.238.103
7810.166.238.104/2910.166.238.105 – 10.166.238.11010.166.238.111
7910.166.238.112/2910.166.238.113 – 10.166.238.11810.166.238.119
8010.166.238.120/2910.166.238.121 – 10.166.238.12610.166.238.127
8110.166.238.128/2910.166.238.129 – 10.166.238.13410.166.238.135
8210.166.238.136/2910.166.238.137 – 10.166.238.14210.166.238.143
8310.166.238.144/2910.166.238.145 – 10.166.238.15010.166.238.151
8410.166.238.152/2910.166.238.153 – 10.166.238.15810.166.238.159
8510.166.238.160/2910.166.238.161 – 10.166.238.16610.166.238.167
8610.166.238.168/2910.166.238.169 – 10.166.238.17410.166.238.175
8710.166.238.176/2910.166.238.177 – 10.166.238.18210.166.238.183
8810.166.238.184/2910.166.238.185 – 10.166.238.19010.166.238.191
8910.166.238.192/2910.166.238.193 – 10.166.238.19810.166.238.199
9010.166.238.200/2910.166.238.201 – 10.166.238.20610.166.238.207
9110.166.238.208/2910.166.238.209 – 10.166.238.21410.166.238.215
9210.166.238.216/2910.166.238.217 – 10.166.238.22210.166.238.223
9310.166.238.224/2910.166.238.225 – 10.166.238.23010.166.238.231
9410.166.238.232/2910.166.238.233 – 10.166.238.23810.166.238.239
9510.166.238.240/2910.166.238.241 – 10.166.238.24610.166.238.247
9610.166.238.248/2910.166.238.249 – 10.166.238.25410.166.238.255
9710.166.239.0/2910.166.239.1 – 10.166.239.610.166.239.7
9810.166.239.8/2910.166.239.9 – 10.166.239.1410.166.239.15
9910.166.239.16/2910.166.239.17 – 10.166.239.2210.166.239.23
10010.166.239.24/2910.166.239.25 – 10.166.239.3010.166.239.31
10110.166.239.32/2910.166.239.33 – 10.166.239.3810.166.239.39
10210.166.239.40/2910.166.239.41 – 10.166.239.4610.166.239.47
10310.166.239.48/2910.166.239.49 – 10.166.239.5410.166.239.55
10410.166.239.56/2910.166.239.57 – 10.166.239.6210.166.239.63
10510.166.239.64/2910.166.239.65 – 10.166.239.7010.166.239.71
10610.166.239.72/2910.166.239.73 – 10.166.239.7810.166.239.79
10710.166.239.80/2910.166.239.81 – 10.166.239.8610.166.239.87
10810.166.239.88/2910.166.239.89 – 10.166.239.9410.166.239.95
10910.166.239.96/2910.166.239.97 – 10.166.239.10210.166.239.103
11010.166.239.104/2910.166.239.105 – 10.166.239.11010.166.239.111
11110.166.239.112/2910.166.239.113 – 10.166.239.11810.166.239.119
11210.166.239.120/2910.166.239.121 – 10.166.239.12610.166.239.127
11310.166.239.128/2910.166.239.129 – 10.166.239.13410.166.239.135
11410.166.239.136/2910.166.239.137 – 10.166.239.14210.166.239.143
11510.166.239.144/2910.166.239.145 – 10.166.239.15010.166.239.151
11610.166.239.152/2910.166.239.153 – 10.166.239.15810.166.239.159
11710.166.239.160/2910.166.239.161 – 10.166.239.16610.166.239.167
11810.166.239.168/2910.166.239.169 – 10.166.239.17410.166.239.175
11910.166.239.176/2910.166.239.177 – 10.166.239.18210.166.239.183
12010.166.239.184/2910.166.239.185 – 10.166.239.19010.166.239.191
12110.166.239.192/2910.166.239.193 – 10.166.239.19810.166.239.199
12210.166.239.200/2910.166.239.201 – 10.166.239.20610.166.239.207
12310.166.239.208/2910.166.239.209 – 10.166.239.21410.166.239.215
12410.166.239.216/2910.166.239.217 – 10.166.239.22210.166.239.223
12510.166.239.224/2910.166.239.225 – 10.166.239.23010.166.239.231
12610.166.239.232/2910.166.239.233 – 10.166.239.23810.166.239.239
12710.166.239.240/2910.166.239.241 – 10.166.239.24610.166.239.247
12810.166.239.248/2910.166.239.249 – 10.166.239.25410.166.239.255
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 →