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)10.26.4.0/22
network10.26.4.0/22
broadcast10.26.7.255
first host10.26.4.1
last host10.26.7.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.26.4.0/22
address00001010.00011010.00000100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.00011010.00000100.00000000
broadcast00001010.00011010.00000111.11111111
green = network part, grey = host part
hex0x0a1a0400
decimal169477120
reverse dns0.4.26.10.in-addr.arpa
ipv4-mapped::ffff:a1a:400

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.26.4.0/2910.26.4.1 – 10.26.4.610.26.4.7
210.26.4.8/2910.26.4.9 – 10.26.4.1410.26.4.15
310.26.4.16/2910.26.4.17 – 10.26.4.2210.26.4.23
410.26.4.24/2910.26.4.25 – 10.26.4.3010.26.4.31
510.26.4.32/2910.26.4.33 – 10.26.4.3810.26.4.39
610.26.4.40/2910.26.4.41 – 10.26.4.4610.26.4.47
710.26.4.48/2910.26.4.49 – 10.26.4.5410.26.4.55
810.26.4.56/2910.26.4.57 – 10.26.4.6210.26.4.63
910.26.4.64/2910.26.4.65 – 10.26.4.7010.26.4.71
1010.26.4.72/2910.26.4.73 – 10.26.4.7810.26.4.79
1110.26.4.80/2910.26.4.81 – 10.26.4.8610.26.4.87
1210.26.4.88/2910.26.4.89 – 10.26.4.9410.26.4.95
1310.26.4.96/2910.26.4.97 – 10.26.4.10210.26.4.103
1410.26.4.104/2910.26.4.105 – 10.26.4.11010.26.4.111
1510.26.4.112/2910.26.4.113 – 10.26.4.11810.26.4.119
1610.26.4.120/2910.26.4.121 – 10.26.4.12610.26.4.127
1710.26.4.128/2910.26.4.129 – 10.26.4.13410.26.4.135
1810.26.4.136/2910.26.4.137 – 10.26.4.14210.26.4.143
1910.26.4.144/2910.26.4.145 – 10.26.4.15010.26.4.151
2010.26.4.152/2910.26.4.153 – 10.26.4.15810.26.4.159
2110.26.4.160/2910.26.4.161 – 10.26.4.16610.26.4.167
2210.26.4.168/2910.26.4.169 – 10.26.4.17410.26.4.175
2310.26.4.176/2910.26.4.177 – 10.26.4.18210.26.4.183
2410.26.4.184/2910.26.4.185 – 10.26.4.19010.26.4.191
2510.26.4.192/2910.26.4.193 – 10.26.4.19810.26.4.199
2610.26.4.200/2910.26.4.201 – 10.26.4.20610.26.4.207
2710.26.4.208/2910.26.4.209 – 10.26.4.21410.26.4.215
2810.26.4.216/2910.26.4.217 – 10.26.4.22210.26.4.223
2910.26.4.224/2910.26.4.225 – 10.26.4.23010.26.4.231
3010.26.4.232/2910.26.4.233 – 10.26.4.23810.26.4.239
3110.26.4.240/2910.26.4.241 – 10.26.4.24610.26.4.247
3210.26.4.248/2910.26.4.249 – 10.26.4.25410.26.4.255
3310.26.5.0/2910.26.5.1 – 10.26.5.610.26.5.7
3410.26.5.8/2910.26.5.9 – 10.26.5.1410.26.5.15
3510.26.5.16/2910.26.5.17 – 10.26.5.2210.26.5.23
3610.26.5.24/2910.26.5.25 – 10.26.5.3010.26.5.31
3710.26.5.32/2910.26.5.33 – 10.26.5.3810.26.5.39
3810.26.5.40/2910.26.5.41 – 10.26.5.4610.26.5.47
3910.26.5.48/2910.26.5.49 – 10.26.5.5410.26.5.55
4010.26.5.56/2910.26.5.57 – 10.26.5.6210.26.5.63
4110.26.5.64/2910.26.5.65 – 10.26.5.7010.26.5.71
4210.26.5.72/2910.26.5.73 – 10.26.5.7810.26.5.79
4310.26.5.80/2910.26.5.81 – 10.26.5.8610.26.5.87
4410.26.5.88/2910.26.5.89 – 10.26.5.9410.26.5.95
4510.26.5.96/2910.26.5.97 – 10.26.5.10210.26.5.103
4610.26.5.104/2910.26.5.105 – 10.26.5.11010.26.5.111
4710.26.5.112/2910.26.5.113 – 10.26.5.11810.26.5.119
4810.26.5.120/2910.26.5.121 – 10.26.5.12610.26.5.127
4910.26.5.128/2910.26.5.129 – 10.26.5.13410.26.5.135
5010.26.5.136/2910.26.5.137 – 10.26.5.14210.26.5.143
5110.26.5.144/2910.26.5.145 – 10.26.5.15010.26.5.151
5210.26.5.152/2910.26.5.153 – 10.26.5.15810.26.5.159
5310.26.5.160/2910.26.5.161 – 10.26.5.16610.26.5.167
5410.26.5.168/2910.26.5.169 – 10.26.5.17410.26.5.175
5510.26.5.176/2910.26.5.177 – 10.26.5.18210.26.5.183
5610.26.5.184/2910.26.5.185 – 10.26.5.19010.26.5.191
5710.26.5.192/2910.26.5.193 – 10.26.5.19810.26.5.199
5810.26.5.200/2910.26.5.201 – 10.26.5.20610.26.5.207
5910.26.5.208/2910.26.5.209 – 10.26.5.21410.26.5.215
6010.26.5.216/2910.26.5.217 – 10.26.5.22210.26.5.223
6110.26.5.224/2910.26.5.225 – 10.26.5.23010.26.5.231
6210.26.5.232/2910.26.5.233 – 10.26.5.23810.26.5.239
6310.26.5.240/2910.26.5.241 – 10.26.5.24610.26.5.247
6410.26.5.248/2910.26.5.249 – 10.26.5.25410.26.5.255
6510.26.6.0/2910.26.6.1 – 10.26.6.610.26.6.7
6610.26.6.8/2910.26.6.9 – 10.26.6.1410.26.6.15
6710.26.6.16/2910.26.6.17 – 10.26.6.2210.26.6.23
6810.26.6.24/2910.26.6.25 – 10.26.6.3010.26.6.31
6910.26.6.32/2910.26.6.33 – 10.26.6.3810.26.6.39
7010.26.6.40/2910.26.6.41 – 10.26.6.4610.26.6.47
7110.26.6.48/2910.26.6.49 – 10.26.6.5410.26.6.55
7210.26.6.56/2910.26.6.57 – 10.26.6.6210.26.6.63
7310.26.6.64/2910.26.6.65 – 10.26.6.7010.26.6.71
7410.26.6.72/2910.26.6.73 – 10.26.6.7810.26.6.79
7510.26.6.80/2910.26.6.81 – 10.26.6.8610.26.6.87
7610.26.6.88/2910.26.6.89 – 10.26.6.9410.26.6.95
7710.26.6.96/2910.26.6.97 – 10.26.6.10210.26.6.103
7810.26.6.104/2910.26.6.105 – 10.26.6.11010.26.6.111
7910.26.6.112/2910.26.6.113 – 10.26.6.11810.26.6.119
8010.26.6.120/2910.26.6.121 – 10.26.6.12610.26.6.127
8110.26.6.128/2910.26.6.129 – 10.26.6.13410.26.6.135
8210.26.6.136/2910.26.6.137 – 10.26.6.14210.26.6.143
8310.26.6.144/2910.26.6.145 – 10.26.6.15010.26.6.151
8410.26.6.152/2910.26.6.153 – 10.26.6.15810.26.6.159
8510.26.6.160/2910.26.6.161 – 10.26.6.16610.26.6.167
8610.26.6.168/2910.26.6.169 – 10.26.6.17410.26.6.175
8710.26.6.176/2910.26.6.177 – 10.26.6.18210.26.6.183
8810.26.6.184/2910.26.6.185 – 10.26.6.19010.26.6.191
8910.26.6.192/2910.26.6.193 – 10.26.6.19810.26.6.199
9010.26.6.200/2910.26.6.201 – 10.26.6.20610.26.6.207
9110.26.6.208/2910.26.6.209 – 10.26.6.21410.26.6.215
9210.26.6.216/2910.26.6.217 – 10.26.6.22210.26.6.223
9310.26.6.224/2910.26.6.225 – 10.26.6.23010.26.6.231
9410.26.6.232/2910.26.6.233 – 10.26.6.23810.26.6.239
9510.26.6.240/2910.26.6.241 – 10.26.6.24610.26.6.247
9610.26.6.248/2910.26.6.249 – 10.26.6.25410.26.6.255
9710.26.7.0/2910.26.7.1 – 10.26.7.610.26.7.7
9810.26.7.8/2910.26.7.9 – 10.26.7.1410.26.7.15
9910.26.7.16/2910.26.7.17 – 10.26.7.2210.26.7.23
10010.26.7.24/2910.26.7.25 – 10.26.7.3010.26.7.31
10110.26.7.32/2910.26.7.33 – 10.26.7.3810.26.7.39
10210.26.7.40/2910.26.7.41 – 10.26.7.4610.26.7.47
10310.26.7.48/2910.26.7.49 – 10.26.7.5410.26.7.55
10410.26.7.56/2910.26.7.57 – 10.26.7.6210.26.7.63
10510.26.7.64/2910.26.7.65 – 10.26.7.7010.26.7.71
10610.26.7.72/2910.26.7.73 – 10.26.7.7810.26.7.79
10710.26.7.80/2910.26.7.81 – 10.26.7.8610.26.7.87
10810.26.7.88/2910.26.7.89 – 10.26.7.9410.26.7.95
10910.26.7.96/2910.26.7.97 – 10.26.7.10210.26.7.103
11010.26.7.104/2910.26.7.105 – 10.26.7.11010.26.7.111
11110.26.7.112/2910.26.7.113 – 10.26.7.11810.26.7.119
11210.26.7.120/2910.26.7.121 – 10.26.7.12610.26.7.127
11310.26.7.128/2910.26.7.129 – 10.26.7.13410.26.7.135
11410.26.7.136/2910.26.7.137 – 10.26.7.14210.26.7.143
11510.26.7.144/2910.26.7.145 – 10.26.7.15010.26.7.151
11610.26.7.152/2910.26.7.153 – 10.26.7.15810.26.7.159
11710.26.7.160/2910.26.7.161 – 10.26.7.16610.26.7.167
11810.26.7.168/2910.26.7.169 – 10.26.7.17410.26.7.175
11910.26.7.176/2910.26.7.177 – 10.26.7.18210.26.7.183
12010.26.7.184/2910.26.7.185 – 10.26.7.19010.26.7.191
12110.26.7.192/2910.26.7.193 – 10.26.7.19810.26.7.199
12210.26.7.200/2910.26.7.201 – 10.26.7.20610.26.7.207
12310.26.7.208/2910.26.7.209 – 10.26.7.21410.26.7.215
12410.26.7.216/2910.26.7.217 – 10.26.7.22210.26.7.223
12510.26.7.224/2910.26.7.225 – 10.26.7.23010.26.7.231
12610.26.7.232/2910.26.7.233 – 10.26.7.23810.26.7.239
12710.26.7.240/2910.26.7.241 – 10.26.7.24610.26.7.247
12810.26.7.248/2910.26.7.249 – 10.26.7.25410.26.7.255
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 →