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)10.65.52.0/22
network10.65.52.0/22
broadcast10.65.55.255
first host10.65.52.1
last host10.65.55.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.65.52.0/22
address00001010.01000001.00110100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01000001.00110100.00000000
broadcast00001010.01000001.00110111.11111111
green = network part, grey = host part
hex0x0a413400
decimal172045312
reverse dns0.52.65.10.in-addr.arpa
ipv4-mapped::ffff:a41:3400

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.65.52.0/2910.65.52.1 – 10.65.52.610.65.52.7
210.65.52.8/2910.65.52.9 – 10.65.52.1410.65.52.15
310.65.52.16/2910.65.52.17 – 10.65.52.2210.65.52.23
410.65.52.24/2910.65.52.25 – 10.65.52.3010.65.52.31
510.65.52.32/2910.65.52.33 – 10.65.52.3810.65.52.39
610.65.52.40/2910.65.52.41 – 10.65.52.4610.65.52.47
710.65.52.48/2910.65.52.49 – 10.65.52.5410.65.52.55
810.65.52.56/2910.65.52.57 – 10.65.52.6210.65.52.63
910.65.52.64/2910.65.52.65 – 10.65.52.7010.65.52.71
1010.65.52.72/2910.65.52.73 – 10.65.52.7810.65.52.79
1110.65.52.80/2910.65.52.81 – 10.65.52.8610.65.52.87
1210.65.52.88/2910.65.52.89 – 10.65.52.9410.65.52.95
1310.65.52.96/2910.65.52.97 – 10.65.52.10210.65.52.103
1410.65.52.104/2910.65.52.105 – 10.65.52.11010.65.52.111
1510.65.52.112/2910.65.52.113 – 10.65.52.11810.65.52.119
1610.65.52.120/2910.65.52.121 – 10.65.52.12610.65.52.127
1710.65.52.128/2910.65.52.129 – 10.65.52.13410.65.52.135
1810.65.52.136/2910.65.52.137 – 10.65.52.14210.65.52.143
1910.65.52.144/2910.65.52.145 – 10.65.52.15010.65.52.151
2010.65.52.152/2910.65.52.153 – 10.65.52.15810.65.52.159
2110.65.52.160/2910.65.52.161 – 10.65.52.16610.65.52.167
2210.65.52.168/2910.65.52.169 – 10.65.52.17410.65.52.175
2310.65.52.176/2910.65.52.177 – 10.65.52.18210.65.52.183
2410.65.52.184/2910.65.52.185 – 10.65.52.19010.65.52.191
2510.65.52.192/2910.65.52.193 – 10.65.52.19810.65.52.199
2610.65.52.200/2910.65.52.201 – 10.65.52.20610.65.52.207
2710.65.52.208/2910.65.52.209 – 10.65.52.21410.65.52.215
2810.65.52.216/2910.65.52.217 – 10.65.52.22210.65.52.223
2910.65.52.224/2910.65.52.225 – 10.65.52.23010.65.52.231
3010.65.52.232/2910.65.52.233 – 10.65.52.23810.65.52.239
3110.65.52.240/2910.65.52.241 – 10.65.52.24610.65.52.247
3210.65.52.248/2910.65.52.249 – 10.65.52.25410.65.52.255
3310.65.53.0/2910.65.53.1 – 10.65.53.610.65.53.7
3410.65.53.8/2910.65.53.9 – 10.65.53.1410.65.53.15
3510.65.53.16/2910.65.53.17 – 10.65.53.2210.65.53.23
3610.65.53.24/2910.65.53.25 – 10.65.53.3010.65.53.31
3710.65.53.32/2910.65.53.33 – 10.65.53.3810.65.53.39
3810.65.53.40/2910.65.53.41 – 10.65.53.4610.65.53.47
3910.65.53.48/2910.65.53.49 – 10.65.53.5410.65.53.55
4010.65.53.56/2910.65.53.57 – 10.65.53.6210.65.53.63
4110.65.53.64/2910.65.53.65 – 10.65.53.7010.65.53.71
4210.65.53.72/2910.65.53.73 – 10.65.53.7810.65.53.79
4310.65.53.80/2910.65.53.81 – 10.65.53.8610.65.53.87
4410.65.53.88/2910.65.53.89 – 10.65.53.9410.65.53.95
4510.65.53.96/2910.65.53.97 – 10.65.53.10210.65.53.103
4610.65.53.104/2910.65.53.105 – 10.65.53.11010.65.53.111
4710.65.53.112/2910.65.53.113 – 10.65.53.11810.65.53.119
4810.65.53.120/2910.65.53.121 – 10.65.53.12610.65.53.127
4910.65.53.128/2910.65.53.129 – 10.65.53.13410.65.53.135
5010.65.53.136/2910.65.53.137 – 10.65.53.14210.65.53.143
5110.65.53.144/2910.65.53.145 – 10.65.53.15010.65.53.151
5210.65.53.152/2910.65.53.153 – 10.65.53.15810.65.53.159
5310.65.53.160/2910.65.53.161 – 10.65.53.16610.65.53.167
5410.65.53.168/2910.65.53.169 – 10.65.53.17410.65.53.175
5510.65.53.176/2910.65.53.177 – 10.65.53.18210.65.53.183
5610.65.53.184/2910.65.53.185 – 10.65.53.19010.65.53.191
5710.65.53.192/2910.65.53.193 – 10.65.53.19810.65.53.199
5810.65.53.200/2910.65.53.201 – 10.65.53.20610.65.53.207
5910.65.53.208/2910.65.53.209 – 10.65.53.21410.65.53.215
6010.65.53.216/2910.65.53.217 – 10.65.53.22210.65.53.223
6110.65.53.224/2910.65.53.225 – 10.65.53.23010.65.53.231
6210.65.53.232/2910.65.53.233 – 10.65.53.23810.65.53.239
6310.65.53.240/2910.65.53.241 – 10.65.53.24610.65.53.247
6410.65.53.248/2910.65.53.249 – 10.65.53.25410.65.53.255
6510.65.54.0/2910.65.54.1 – 10.65.54.610.65.54.7
6610.65.54.8/2910.65.54.9 – 10.65.54.1410.65.54.15
6710.65.54.16/2910.65.54.17 – 10.65.54.2210.65.54.23
6810.65.54.24/2910.65.54.25 – 10.65.54.3010.65.54.31
6910.65.54.32/2910.65.54.33 – 10.65.54.3810.65.54.39
7010.65.54.40/2910.65.54.41 – 10.65.54.4610.65.54.47
7110.65.54.48/2910.65.54.49 – 10.65.54.5410.65.54.55
7210.65.54.56/2910.65.54.57 – 10.65.54.6210.65.54.63
7310.65.54.64/2910.65.54.65 – 10.65.54.7010.65.54.71
7410.65.54.72/2910.65.54.73 – 10.65.54.7810.65.54.79
7510.65.54.80/2910.65.54.81 – 10.65.54.8610.65.54.87
7610.65.54.88/2910.65.54.89 – 10.65.54.9410.65.54.95
7710.65.54.96/2910.65.54.97 – 10.65.54.10210.65.54.103
7810.65.54.104/2910.65.54.105 – 10.65.54.11010.65.54.111
7910.65.54.112/2910.65.54.113 – 10.65.54.11810.65.54.119
8010.65.54.120/2910.65.54.121 – 10.65.54.12610.65.54.127
8110.65.54.128/2910.65.54.129 – 10.65.54.13410.65.54.135
8210.65.54.136/2910.65.54.137 – 10.65.54.14210.65.54.143
8310.65.54.144/2910.65.54.145 – 10.65.54.15010.65.54.151
8410.65.54.152/2910.65.54.153 – 10.65.54.15810.65.54.159
8510.65.54.160/2910.65.54.161 – 10.65.54.16610.65.54.167
8610.65.54.168/2910.65.54.169 – 10.65.54.17410.65.54.175
8710.65.54.176/2910.65.54.177 – 10.65.54.18210.65.54.183
8810.65.54.184/2910.65.54.185 – 10.65.54.19010.65.54.191
8910.65.54.192/2910.65.54.193 – 10.65.54.19810.65.54.199
9010.65.54.200/2910.65.54.201 – 10.65.54.20610.65.54.207
9110.65.54.208/2910.65.54.209 – 10.65.54.21410.65.54.215
9210.65.54.216/2910.65.54.217 – 10.65.54.22210.65.54.223
9310.65.54.224/2910.65.54.225 – 10.65.54.23010.65.54.231
9410.65.54.232/2910.65.54.233 – 10.65.54.23810.65.54.239
9510.65.54.240/2910.65.54.241 – 10.65.54.24610.65.54.247
9610.65.54.248/2910.65.54.249 – 10.65.54.25410.65.54.255
9710.65.55.0/2910.65.55.1 – 10.65.55.610.65.55.7
9810.65.55.8/2910.65.55.9 – 10.65.55.1410.65.55.15
9910.65.55.16/2910.65.55.17 – 10.65.55.2210.65.55.23
10010.65.55.24/2910.65.55.25 – 10.65.55.3010.65.55.31
10110.65.55.32/2910.65.55.33 – 10.65.55.3810.65.55.39
10210.65.55.40/2910.65.55.41 – 10.65.55.4610.65.55.47
10310.65.55.48/2910.65.55.49 – 10.65.55.5410.65.55.55
10410.65.55.56/2910.65.55.57 – 10.65.55.6210.65.55.63
10510.65.55.64/2910.65.55.65 – 10.65.55.7010.65.55.71
10610.65.55.72/2910.65.55.73 – 10.65.55.7810.65.55.79
10710.65.55.80/2910.65.55.81 – 10.65.55.8610.65.55.87
10810.65.55.88/2910.65.55.89 – 10.65.55.9410.65.55.95
10910.65.55.96/2910.65.55.97 – 10.65.55.10210.65.55.103
11010.65.55.104/2910.65.55.105 – 10.65.55.11010.65.55.111
11110.65.55.112/2910.65.55.113 – 10.65.55.11810.65.55.119
11210.65.55.120/2910.65.55.121 – 10.65.55.12610.65.55.127
11310.65.55.128/2910.65.55.129 – 10.65.55.13410.65.55.135
11410.65.55.136/2910.65.55.137 – 10.65.55.14210.65.55.143
11510.65.55.144/2910.65.55.145 – 10.65.55.15010.65.55.151
11610.65.55.152/2910.65.55.153 – 10.65.55.15810.65.55.159
11710.65.55.160/2910.65.55.161 – 10.65.55.16610.65.55.167
11810.65.55.168/2910.65.55.169 – 10.65.55.17410.65.55.175
11910.65.55.176/2910.65.55.177 – 10.65.55.18210.65.55.183
12010.65.55.184/2910.65.55.185 – 10.65.55.19010.65.55.191
12110.65.55.192/2910.65.55.193 – 10.65.55.19810.65.55.199
12210.65.55.200/2910.65.55.201 – 10.65.55.20610.65.55.207
12310.65.55.208/2910.65.55.209 – 10.65.55.21410.65.55.215
12410.65.55.216/2910.65.55.217 – 10.65.55.22210.65.55.223
12510.65.55.224/2910.65.55.225 – 10.65.55.23010.65.55.231
12610.65.55.232/2910.65.55.233 – 10.65.55.23810.65.55.239
12710.65.55.240/2910.65.55.241 – 10.65.55.24610.65.55.247
12810.65.55.248/2910.65.55.249 – 10.65.55.25410.65.55.255
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 →