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)10.4.124.0/22
network10.4.124.0/22
broadcast10.4.127.255
first host10.4.124.1
last host10.4.127.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.4.124.0/22
address00001010.00000100.01111100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.00000100.01111100.00000000
broadcast00001010.00000100.01111111.11111111
green = network part, grey = host part
hex0x0a047c00
decimal168066048
reverse dns0.124.4.10.in-addr.arpa
ipv4-mapped::ffff:a04:7c00

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.4.124.0/2910.4.124.1 – 10.4.124.610.4.124.7
210.4.124.8/2910.4.124.9 – 10.4.124.1410.4.124.15
310.4.124.16/2910.4.124.17 – 10.4.124.2210.4.124.23
410.4.124.24/2910.4.124.25 – 10.4.124.3010.4.124.31
510.4.124.32/2910.4.124.33 – 10.4.124.3810.4.124.39
610.4.124.40/2910.4.124.41 – 10.4.124.4610.4.124.47
710.4.124.48/2910.4.124.49 – 10.4.124.5410.4.124.55
810.4.124.56/2910.4.124.57 – 10.4.124.6210.4.124.63
910.4.124.64/2910.4.124.65 – 10.4.124.7010.4.124.71
1010.4.124.72/2910.4.124.73 – 10.4.124.7810.4.124.79
1110.4.124.80/2910.4.124.81 – 10.4.124.8610.4.124.87
1210.4.124.88/2910.4.124.89 – 10.4.124.9410.4.124.95
1310.4.124.96/2910.4.124.97 – 10.4.124.10210.4.124.103
1410.4.124.104/2910.4.124.105 – 10.4.124.11010.4.124.111
1510.4.124.112/2910.4.124.113 – 10.4.124.11810.4.124.119
1610.4.124.120/2910.4.124.121 – 10.4.124.12610.4.124.127
1710.4.124.128/2910.4.124.129 – 10.4.124.13410.4.124.135
1810.4.124.136/2910.4.124.137 – 10.4.124.14210.4.124.143
1910.4.124.144/2910.4.124.145 – 10.4.124.15010.4.124.151
2010.4.124.152/2910.4.124.153 – 10.4.124.15810.4.124.159
2110.4.124.160/2910.4.124.161 – 10.4.124.16610.4.124.167
2210.4.124.168/2910.4.124.169 – 10.4.124.17410.4.124.175
2310.4.124.176/2910.4.124.177 – 10.4.124.18210.4.124.183
2410.4.124.184/2910.4.124.185 – 10.4.124.19010.4.124.191
2510.4.124.192/2910.4.124.193 – 10.4.124.19810.4.124.199
2610.4.124.200/2910.4.124.201 – 10.4.124.20610.4.124.207
2710.4.124.208/2910.4.124.209 – 10.4.124.21410.4.124.215
2810.4.124.216/2910.4.124.217 – 10.4.124.22210.4.124.223
2910.4.124.224/2910.4.124.225 – 10.4.124.23010.4.124.231
3010.4.124.232/2910.4.124.233 – 10.4.124.23810.4.124.239
3110.4.124.240/2910.4.124.241 – 10.4.124.24610.4.124.247
3210.4.124.248/2910.4.124.249 – 10.4.124.25410.4.124.255
3310.4.125.0/2910.4.125.1 – 10.4.125.610.4.125.7
3410.4.125.8/2910.4.125.9 – 10.4.125.1410.4.125.15
3510.4.125.16/2910.4.125.17 – 10.4.125.2210.4.125.23
3610.4.125.24/2910.4.125.25 – 10.4.125.3010.4.125.31
3710.4.125.32/2910.4.125.33 – 10.4.125.3810.4.125.39
3810.4.125.40/2910.4.125.41 – 10.4.125.4610.4.125.47
3910.4.125.48/2910.4.125.49 – 10.4.125.5410.4.125.55
4010.4.125.56/2910.4.125.57 – 10.4.125.6210.4.125.63
4110.4.125.64/2910.4.125.65 – 10.4.125.7010.4.125.71
4210.4.125.72/2910.4.125.73 – 10.4.125.7810.4.125.79
4310.4.125.80/2910.4.125.81 – 10.4.125.8610.4.125.87
4410.4.125.88/2910.4.125.89 – 10.4.125.9410.4.125.95
4510.4.125.96/2910.4.125.97 – 10.4.125.10210.4.125.103
4610.4.125.104/2910.4.125.105 – 10.4.125.11010.4.125.111
4710.4.125.112/2910.4.125.113 – 10.4.125.11810.4.125.119
4810.4.125.120/2910.4.125.121 – 10.4.125.12610.4.125.127
4910.4.125.128/2910.4.125.129 – 10.4.125.13410.4.125.135
5010.4.125.136/2910.4.125.137 – 10.4.125.14210.4.125.143
5110.4.125.144/2910.4.125.145 – 10.4.125.15010.4.125.151
5210.4.125.152/2910.4.125.153 – 10.4.125.15810.4.125.159
5310.4.125.160/2910.4.125.161 – 10.4.125.16610.4.125.167
5410.4.125.168/2910.4.125.169 – 10.4.125.17410.4.125.175
5510.4.125.176/2910.4.125.177 – 10.4.125.18210.4.125.183
5610.4.125.184/2910.4.125.185 – 10.4.125.19010.4.125.191
5710.4.125.192/2910.4.125.193 – 10.4.125.19810.4.125.199
5810.4.125.200/2910.4.125.201 – 10.4.125.20610.4.125.207
5910.4.125.208/2910.4.125.209 – 10.4.125.21410.4.125.215
6010.4.125.216/2910.4.125.217 – 10.4.125.22210.4.125.223
6110.4.125.224/2910.4.125.225 – 10.4.125.23010.4.125.231
6210.4.125.232/2910.4.125.233 – 10.4.125.23810.4.125.239
6310.4.125.240/2910.4.125.241 – 10.4.125.24610.4.125.247
6410.4.125.248/2910.4.125.249 – 10.4.125.25410.4.125.255
6510.4.126.0/2910.4.126.1 – 10.4.126.610.4.126.7
6610.4.126.8/2910.4.126.9 – 10.4.126.1410.4.126.15
6710.4.126.16/2910.4.126.17 – 10.4.126.2210.4.126.23
6810.4.126.24/2910.4.126.25 – 10.4.126.3010.4.126.31
6910.4.126.32/2910.4.126.33 – 10.4.126.3810.4.126.39
7010.4.126.40/2910.4.126.41 – 10.4.126.4610.4.126.47
7110.4.126.48/2910.4.126.49 – 10.4.126.5410.4.126.55
7210.4.126.56/2910.4.126.57 – 10.4.126.6210.4.126.63
7310.4.126.64/2910.4.126.65 – 10.4.126.7010.4.126.71
7410.4.126.72/2910.4.126.73 – 10.4.126.7810.4.126.79
7510.4.126.80/2910.4.126.81 – 10.4.126.8610.4.126.87
7610.4.126.88/2910.4.126.89 – 10.4.126.9410.4.126.95
7710.4.126.96/2910.4.126.97 – 10.4.126.10210.4.126.103
7810.4.126.104/2910.4.126.105 – 10.4.126.11010.4.126.111
7910.4.126.112/2910.4.126.113 – 10.4.126.11810.4.126.119
8010.4.126.120/2910.4.126.121 – 10.4.126.12610.4.126.127
8110.4.126.128/2910.4.126.129 – 10.4.126.13410.4.126.135
8210.4.126.136/2910.4.126.137 – 10.4.126.14210.4.126.143
8310.4.126.144/2910.4.126.145 – 10.4.126.15010.4.126.151
8410.4.126.152/2910.4.126.153 – 10.4.126.15810.4.126.159
8510.4.126.160/2910.4.126.161 – 10.4.126.16610.4.126.167
8610.4.126.168/2910.4.126.169 – 10.4.126.17410.4.126.175
8710.4.126.176/2910.4.126.177 – 10.4.126.18210.4.126.183
8810.4.126.184/2910.4.126.185 – 10.4.126.19010.4.126.191
8910.4.126.192/2910.4.126.193 – 10.4.126.19810.4.126.199
9010.4.126.200/2910.4.126.201 – 10.4.126.20610.4.126.207
9110.4.126.208/2910.4.126.209 – 10.4.126.21410.4.126.215
9210.4.126.216/2910.4.126.217 – 10.4.126.22210.4.126.223
9310.4.126.224/2910.4.126.225 – 10.4.126.23010.4.126.231
9410.4.126.232/2910.4.126.233 – 10.4.126.23810.4.126.239
9510.4.126.240/2910.4.126.241 – 10.4.126.24610.4.126.247
9610.4.126.248/2910.4.126.249 – 10.4.126.25410.4.126.255
9710.4.127.0/2910.4.127.1 – 10.4.127.610.4.127.7
9810.4.127.8/2910.4.127.9 – 10.4.127.1410.4.127.15
9910.4.127.16/2910.4.127.17 – 10.4.127.2210.4.127.23
10010.4.127.24/2910.4.127.25 – 10.4.127.3010.4.127.31
10110.4.127.32/2910.4.127.33 – 10.4.127.3810.4.127.39
10210.4.127.40/2910.4.127.41 – 10.4.127.4610.4.127.47
10310.4.127.48/2910.4.127.49 – 10.4.127.5410.4.127.55
10410.4.127.56/2910.4.127.57 – 10.4.127.6210.4.127.63
10510.4.127.64/2910.4.127.65 – 10.4.127.7010.4.127.71
10610.4.127.72/2910.4.127.73 – 10.4.127.7810.4.127.79
10710.4.127.80/2910.4.127.81 – 10.4.127.8610.4.127.87
10810.4.127.88/2910.4.127.89 – 10.4.127.9410.4.127.95
10910.4.127.96/2910.4.127.97 – 10.4.127.10210.4.127.103
11010.4.127.104/2910.4.127.105 – 10.4.127.11010.4.127.111
11110.4.127.112/2910.4.127.113 – 10.4.127.11810.4.127.119
11210.4.127.120/2910.4.127.121 – 10.4.127.12610.4.127.127
11310.4.127.128/2910.4.127.129 – 10.4.127.13410.4.127.135
11410.4.127.136/2910.4.127.137 – 10.4.127.14210.4.127.143
11510.4.127.144/2910.4.127.145 – 10.4.127.15010.4.127.151
11610.4.127.152/2910.4.127.153 – 10.4.127.15810.4.127.159
11710.4.127.160/2910.4.127.161 – 10.4.127.16610.4.127.167
11810.4.127.168/2910.4.127.169 – 10.4.127.17410.4.127.175
11910.4.127.176/2910.4.127.177 – 10.4.127.18210.4.127.183
12010.4.127.184/2910.4.127.185 – 10.4.127.19010.4.127.191
12110.4.127.192/2910.4.127.193 – 10.4.127.19810.4.127.199
12210.4.127.200/2910.4.127.201 – 10.4.127.20610.4.127.207
12310.4.127.208/2910.4.127.209 – 10.4.127.21410.4.127.215
12410.4.127.216/2910.4.127.217 – 10.4.127.22210.4.127.223
12510.4.127.224/2910.4.127.225 – 10.4.127.23010.4.127.231
12610.4.127.232/2910.4.127.233 – 10.4.127.23810.4.127.239
12710.4.127.240/2910.4.127.241 – 10.4.127.24610.4.127.247
12810.4.127.248/2910.4.127.249 – 10.4.127.25410.4.127.255
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 →