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)10.237.136.0/22
network10.237.136.0/22
broadcast10.237.139.255
first host10.237.136.1
last host10.237.139.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.237.136.0/22
address00001010.11101101.10001000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.11101101.10001000.00000000
broadcast00001010.11101101.10001011.11111111
green = network part, grey = host part
hex0x0aed8800
decimal183339008
reverse dns0.136.237.10.in-addr.arpa
ipv4-mapped::ffff:aed:8800

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.237.136.0/2910.237.136.1 – 10.237.136.610.237.136.7
210.237.136.8/2910.237.136.9 – 10.237.136.1410.237.136.15
310.237.136.16/2910.237.136.17 – 10.237.136.2210.237.136.23
410.237.136.24/2910.237.136.25 – 10.237.136.3010.237.136.31
510.237.136.32/2910.237.136.33 – 10.237.136.3810.237.136.39
610.237.136.40/2910.237.136.41 – 10.237.136.4610.237.136.47
710.237.136.48/2910.237.136.49 – 10.237.136.5410.237.136.55
810.237.136.56/2910.237.136.57 – 10.237.136.6210.237.136.63
910.237.136.64/2910.237.136.65 – 10.237.136.7010.237.136.71
1010.237.136.72/2910.237.136.73 – 10.237.136.7810.237.136.79
1110.237.136.80/2910.237.136.81 – 10.237.136.8610.237.136.87
1210.237.136.88/2910.237.136.89 – 10.237.136.9410.237.136.95
1310.237.136.96/2910.237.136.97 – 10.237.136.10210.237.136.103
1410.237.136.104/2910.237.136.105 – 10.237.136.11010.237.136.111
1510.237.136.112/2910.237.136.113 – 10.237.136.11810.237.136.119
1610.237.136.120/2910.237.136.121 – 10.237.136.12610.237.136.127
1710.237.136.128/2910.237.136.129 – 10.237.136.13410.237.136.135
1810.237.136.136/2910.237.136.137 – 10.237.136.14210.237.136.143
1910.237.136.144/2910.237.136.145 – 10.237.136.15010.237.136.151
2010.237.136.152/2910.237.136.153 – 10.237.136.15810.237.136.159
2110.237.136.160/2910.237.136.161 – 10.237.136.16610.237.136.167
2210.237.136.168/2910.237.136.169 – 10.237.136.17410.237.136.175
2310.237.136.176/2910.237.136.177 – 10.237.136.18210.237.136.183
2410.237.136.184/2910.237.136.185 – 10.237.136.19010.237.136.191
2510.237.136.192/2910.237.136.193 – 10.237.136.19810.237.136.199
2610.237.136.200/2910.237.136.201 – 10.237.136.20610.237.136.207
2710.237.136.208/2910.237.136.209 – 10.237.136.21410.237.136.215
2810.237.136.216/2910.237.136.217 – 10.237.136.22210.237.136.223
2910.237.136.224/2910.237.136.225 – 10.237.136.23010.237.136.231
3010.237.136.232/2910.237.136.233 – 10.237.136.23810.237.136.239
3110.237.136.240/2910.237.136.241 – 10.237.136.24610.237.136.247
3210.237.136.248/2910.237.136.249 – 10.237.136.25410.237.136.255
3310.237.137.0/2910.237.137.1 – 10.237.137.610.237.137.7
3410.237.137.8/2910.237.137.9 – 10.237.137.1410.237.137.15
3510.237.137.16/2910.237.137.17 – 10.237.137.2210.237.137.23
3610.237.137.24/2910.237.137.25 – 10.237.137.3010.237.137.31
3710.237.137.32/2910.237.137.33 – 10.237.137.3810.237.137.39
3810.237.137.40/2910.237.137.41 – 10.237.137.4610.237.137.47
3910.237.137.48/2910.237.137.49 – 10.237.137.5410.237.137.55
4010.237.137.56/2910.237.137.57 – 10.237.137.6210.237.137.63
4110.237.137.64/2910.237.137.65 – 10.237.137.7010.237.137.71
4210.237.137.72/2910.237.137.73 – 10.237.137.7810.237.137.79
4310.237.137.80/2910.237.137.81 – 10.237.137.8610.237.137.87
4410.237.137.88/2910.237.137.89 – 10.237.137.9410.237.137.95
4510.237.137.96/2910.237.137.97 – 10.237.137.10210.237.137.103
4610.237.137.104/2910.237.137.105 – 10.237.137.11010.237.137.111
4710.237.137.112/2910.237.137.113 – 10.237.137.11810.237.137.119
4810.237.137.120/2910.237.137.121 – 10.237.137.12610.237.137.127
4910.237.137.128/2910.237.137.129 – 10.237.137.13410.237.137.135
5010.237.137.136/2910.237.137.137 – 10.237.137.14210.237.137.143
5110.237.137.144/2910.237.137.145 – 10.237.137.15010.237.137.151
5210.237.137.152/2910.237.137.153 – 10.237.137.15810.237.137.159
5310.237.137.160/2910.237.137.161 – 10.237.137.16610.237.137.167
5410.237.137.168/2910.237.137.169 – 10.237.137.17410.237.137.175
5510.237.137.176/2910.237.137.177 – 10.237.137.18210.237.137.183
5610.237.137.184/2910.237.137.185 – 10.237.137.19010.237.137.191
5710.237.137.192/2910.237.137.193 – 10.237.137.19810.237.137.199
5810.237.137.200/2910.237.137.201 – 10.237.137.20610.237.137.207
5910.237.137.208/2910.237.137.209 – 10.237.137.21410.237.137.215
6010.237.137.216/2910.237.137.217 – 10.237.137.22210.237.137.223
6110.237.137.224/2910.237.137.225 – 10.237.137.23010.237.137.231
6210.237.137.232/2910.237.137.233 – 10.237.137.23810.237.137.239
6310.237.137.240/2910.237.137.241 – 10.237.137.24610.237.137.247
6410.237.137.248/2910.237.137.249 – 10.237.137.25410.237.137.255
6510.237.138.0/2910.237.138.1 – 10.237.138.610.237.138.7
6610.237.138.8/2910.237.138.9 – 10.237.138.1410.237.138.15
6710.237.138.16/2910.237.138.17 – 10.237.138.2210.237.138.23
6810.237.138.24/2910.237.138.25 – 10.237.138.3010.237.138.31
6910.237.138.32/2910.237.138.33 – 10.237.138.3810.237.138.39
7010.237.138.40/2910.237.138.41 – 10.237.138.4610.237.138.47
7110.237.138.48/2910.237.138.49 – 10.237.138.5410.237.138.55
7210.237.138.56/2910.237.138.57 – 10.237.138.6210.237.138.63
7310.237.138.64/2910.237.138.65 – 10.237.138.7010.237.138.71
7410.237.138.72/2910.237.138.73 – 10.237.138.7810.237.138.79
7510.237.138.80/2910.237.138.81 – 10.237.138.8610.237.138.87
7610.237.138.88/2910.237.138.89 – 10.237.138.9410.237.138.95
7710.237.138.96/2910.237.138.97 – 10.237.138.10210.237.138.103
7810.237.138.104/2910.237.138.105 – 10.237.138.11010.237.138.111
7910.237.138.112/2910.237.138.113 – 10.237.138.11810.237.138.119
8010.237.138.120/2910.237.138.121 – 10.237.138.12610.237.138.127
8110.237.138.128/2910.237.138.129 – 10.237.138.13410.237.138.135
8210.237.138.136/2910.237.138.137 – 10.237.138.14210.237.138.143
8310.237.138.144/2910.237.138.145 – 10.237.138.15010.237.138.151
8410.237.138.152/2910.237.138.153 – 10.237.138.15810.237.138.159
8510.237.138.160/2910.237.138.161 – 10.237.138.16610.237.138.167
8610.237.138.168/2910.237.138.169 – 10.237.138.17410.237.138.175
8710.237.138.176/2910.237.138.177 – 10.237.138.18210.237.138.183
8810.237.138.184/2910.237.138.185 – 10.237.138.19010.237.138.191
8910.237.138.192/2910.237.138.193 – 10.237.138.19810.237.138.199
9010.237.138.200/2910.237.138.201 – 10.237.138.20610.237.138.207
9110.237.138.208/2910.237.138.209 – 10.237.138.21410.237.138.215
9210.237.138.216/2910.237.138.217 – 10.237.138.22210.237.138.223
9310.237.138.224/2910.237.138.225 – 10.237.138.23010.237.138.231
9410.237.138.232/2910.237.138.233 – 10.237.138.23810.237.138.239
9510.237.138.240/2910.237.138.241 – 10.237.138.24610.237.138.247
9610.237.138.248/2910.237.138.249 – 10.237.138.25410.237.138.255
9710.237.139.0/2910.237.139.1 – 10.237.139.610.237.139.7
9810.237.139.8/2910.237.139.9 – 10.237.139.1410.237.139.15
9910.237.139.16/2910.237.139.17 – 10.237.139.2210.237.139.23
10010.237.139.24/2910.237.139.25 – 10.237.139.3010.237.139.31
10110.237.139.32/2910.237.139.33 – 10.237.139.3810.237.139.39
10210.237.139.40/2910.237.139.41 – 10.237.139.4610.237.139.47
10310.237.139.48/2910.237.139.49 – 10.237.139.5410.237.139.55
10410.237.139.56/2910.237.139.57 – 10.237.139.6210.237.139.63
10510.237.139.64/2910.237.139.65 – 10.237.139.7010.237.139.71
10610.237.139.72/2910.237.139.73 – 10.237.139.7810.237.139.79
10710.237.139.80/2910.237.139.81 – 10.237.139.8610.237.139.87
10810.237.139.88/2910.237.139.89 – 10.237.139.9410.237.139.95
10910.237.139.96/2910.237.139.97 – 10.237.139.10210.237.139.103
11010.237.139.104/2910.237.139.105 – 10.237.139.11010.237.139.111
11110.237.139.112/2910.237.139.113 – 10.237.139.11810.237.139.119
11210.237.139.120/2910.237.139.121 – 10.237.139.12610.237.139.127
11310.237.139.128/2910.237.139.129 – 10.237.139.13410.237.139.135
11410.237.139.136/2910.237.139.137 – 10.237.139.14210.237.139.143
11510.237.139.144/2910.237.139.145 – 10.237.139.15010.237.139.151
11610.237.139.152/2910.237.139.153 – 10.237.139.15810.237.139.159
11710.237.139.160/2910.237.139.161 – 10.237.139.16610.237.139.167
11810.237.139.168/2910.237.139.169 – 10.237.139.17410.237.139.175
11910.237.139.176/2910.237.139.177 – 10.237.139.18210.237.139.183
12010.237.139.184/2910.237.139.185 – 10.237.139.19010.237.139.191
12110.237.139.192/2910.237.139.193 – 10.237.139.19810.237.139.199
12210.237.139.200/2910.237.139.201 – 10.237.139.20610.237.139.207
12310.237.139.208/2910.237.139.209 – 10.237.139.21410.237.139.215
12410.237.139.216/2910.237.139.217 – 10.237.139.22210.237.139.223
12510.237.139.224/2910.237.139.225 – 10.237.139.23010.237.139.231
12610.237.139.232/2910.237.139.233 – 10.237.139.23810.237.139.239
12710.237.139.240/2910.237.139.241 – 10.237.139.24610.237.139.247
12810.237.139.248/2910.237.139.249 – 10.237.139.25410.237.139.255
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 →