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)10.45.36.0/22
network10.45.36.0/22
broadcast10.45.39.255
first host10.45.36.1
last host10.45.39.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.45.36.0/22
address00001010.00101101.00100100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.00101101.00100100.00000000
broadcast00001010.00101101.00100111.11111111
green = network part, grey = host part
hex0x0a2d2400
decimal170730496
reverse dns0.36.45.10.in-addr.arpa
ipv4-mapped::ffff:a2d:2400

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.45.36.0/2910.45.36.1 – 10.45.36.610.45.36.7
210.45.36.8/2910.45.36.9 – 10.45.36.1410.45.36.15
310.45.36.16/2910.45.36.17 – 10.45.36.2210.45.36.23
410.45.36.24/2910.45.36.25 – 10.45.36.3010.45.36.31
510.45.36.32/2910.45.36.33 – 10.45.36.3810.45.36.39
610.45.36.40/2910.45.36.41 – 10.45.36.4610.45.36.47
710.45.36.48/2910.45.36.49 – 10.45.36.5410.45.36.55
810.45.36.56/2910.45.36.57 – 10.45.36.6210.45.36.63
910.45.36.64/2910.45.36.65 – 10.45.36.7010.45.36.71
1010.45.36.72/2910.45.36.73 – 10.45.36.7810.45.36.79
1110.45.36.80/2910.45.36.81 – 10.45.36.8610.45.36.87
1210.45.36.88/2910.45.36.89 – 10.45.36.9410.45.36.95
1310.45.36.96/2910.45.36.97 – 10.45.36.10210.45.36.103
1410.45.36.104/2910.45.36.105 – 10.45.36.11010.45.36.111
1510.45.36.112/2910.45.36.113 – 10.45.36.11810.45.36.119
1610.45.36.120/2910.45.36.121 – 10.45.36.12610.45.36.127
1710.45.36.128/2910.45.36.129 – 10.45.36.13410.45.36.135
1810.45.36.136/2910.45.36.137 – 10.45.36.14210.45.36.143
1910.45.36.144/2910.45.36.145 – 10.45.36.15010.45.36.151
2010.45.36.152/2910.45.36.153 – 10.45.36.15810.45.36.159
2110.45.36.160/2910.45.36.161 – 10.45.36.16610.45.36.167
2210.45.36.168/2910.45.36.169 – 10.45.36.17410.45.36.175
2310.45.36.176/2910.45.36.177 – 10.45.36.18210.45.36.183
2410.45.36.184/2910.45.36.185 – 10.45.36.19010.45.36.191
2510.45.36.192/2910.45.36.193 – 10.45.36.19810.45.36.199
2610.45.36.200/2910.45.36.201 – 10.45.36.20610.45.36.207
2710.45.36.208/2910.45.36.209 – 10.45.36.21410.45.36.215
2810.45.36.216/2910.45.36.217 – 10.45.36.22210.45.36.223
2910.45.36.224/2910.45.36.225 – 10.45.36.23010.45.36.231
3010.45.36.232/2910.45.36.233 – 10.45.36.23810.45.36.239
3110.45.36.240/2910.45.36.241 – 10.45.36.24610.45.36.247
3210.45.36.248/2910.45.36.249 – 10.45.36.25410.45.36.255
3310.45.37.0/2910.45.37.1 – 10.45.37.610.45.37.7
3410.45.37.8/2910.45.37.9 – 10.45.37.1410.45.37.15
3510.45.37.16/2910.45.37.17 – 10.45.37.2210.45.37.23
3610.45.37.24/2910.45.37.25 – 10.45.37.3010.45.37.31
3710.45.37.32/2910.45.37.33 – 10.45.37.3810.45.37.39
3810.45.37.40/2910.45.37.41 – 10.45.37.4610.45.37.47
3910.45.37.48/2910.45.37.49 – 10.45.37.5410.45.37.55
4010.45.37.56/2910.45.37.57 – 10.45.37.6210.45.37.63
4110.45.37.64/2910.45.37.65 – 10.45.37.7010.45.37.71
4210.45.37.72/2910.45.37.73 – 10.45.37.7810.45.37.79
4310.45.37.80/2910.45.37.81 – 10.45.37.8610.45.37.87
4410.45.37.88/2910.45.37.89 – 10.45.37.9410.45.37.95
4510.45.37.96/2910.45.37.97 – 10.45.37.10210.45.37.103
4610.45.37.104/2910.45.37.105 – 10.45.37.11010.45.37.111
4710.45.37.112/2910.45.37.113 – 10.45.37.11810.45.37.119
4810.45.37.120/2910.45.37.121 – 10.45.37.12610.45.37.127
4910.45.37.128/2910.45.37.129 – 10.45.37.13410.45.37.135
5010.45.37.136/2910.45.37.137 – 10.45.37.14210.45.37.143
5110.45.37.144/2910.45.37.145 – 10.45.37.15010.45.37.151
5210.45.37.152/2910.45.37.153 – 10.45.37.15810.45.37.159
5310.45.37.160/2910.45.37.161 – 10.45.37.16610.45.37.167
5410.45.37.168/2910.45.37.169 – 10.45.37.17410.45.37.175
5510.45.37.176/2910.45.37.177 – 10.45.37.18210.45.37.183
5610.45.37.184/2910.45.37.185 – 10.45.37.19010.45.37.191
5710.45.37.192/2910.45.37.193 – 10.45.37.19810.45.37.199
5810.45.37.200/2910.45.37.201 – 10.45.37.20610.45.37.207
5910.45.37.208/2910.45.37.209 – 10.45.37.21410.45.37.215
6010.45.37.216/2910.45.37.217 – 10.45.37.22210.45.37.223
6110.45.37.224/2910.45.37.225 – 10.45.37.23010.45.37.231
6210.45.37.232/2910.45.37.233 – 10.45.37.23810.45.37.239
6310.45.37.240/2910.45.37.241 – 10.45.37.24610.45.37.247
6410.45.37.248/2910.45.37.249 – 10.45.37.25410.45.37.255
6510.45.38.0/2910.45.38.1 – 10.45.38.610.45.38.7
6610.45.38.8/2910.45.38.9 – 10.45.38.1410.45.38.15
6710.45.38.16/2910.45.38.17 – 10.45.38.2210.45.38.23
6810.45.38.24/2910.45.38.25 – 10.45.38.3010.45.38.31
6910.45.38.32/2910.45.38.33 – 10.45.38.3810.45.38.39
7010.45.38.40/2910.45.38.41 – 10.45.38.4610.45.38.47
7110.45.38.48/2910.45.38.49 – 10.45.38.5410.45.38.55
7210.45.38.56/2910.45.38.57 – 10.45.38.6210.45.38.63
7310.45.38.64/2910.45.38.65 – 10.45.38.7010.45.38.71
7410.45.38.72/2910.45.38.73 – 10.45.38.7810.45.38.79
7510.45.38.80/2910.45.38.81 – 10.45.38.8610.45.38.87
7610.45.38.88/2910.45.38.89 – 10.45.38.9410.45.38.95
7710.45.38.96/2910.45.38.97 – 10.45.38.10210.45.38.103
7810.45.38.104/2910.45.38.105 – 10.45.38.11010.45.38.111
7910.45.38.112/2910.45.38.113 – 10.45.38.11810.45.38.119
8010.45.38.120/2910.45.38.121 – 10.45.38.12610.45.38.127
8110.45.38.128/2910.45.38.129 – 10.45.38.13410.45.38.135
8210.45.38.136/2910.45.38.137 – 10.45.38.14210.45.38.143
8310.45.38.144/2910.45.38.145 – 10.45.38.15010.45.38.151
8410.45.38.152/2910.45.38.153 – 10.45.38.15810.45.38.159
8510.45.38.160/2910.45.38.161 – 10.45.38.16610.45.38.167
8610.45.38.168/2910.45.38.169 – 10.45.38.17410.45.38.175
8710.45.38.176/2910.45.38.177 – 10.45.38.18210.45.38.183
8810.45.38.184/2910.45.38.185 – 10.45.38.19010.45.38.191
8910.45.38.192/2910.45.38.193 – 10.45.38.19810.45.38.199
9010.45.38.200/2910.45.38.201 – 10.45.38.20610.45.38.207
9110.45.38.208/2910.45.38.209 – 10.45.38.21410.45.38.215
9210.45.38.216/2910.45.38.217 – 10.45.38.22210.45.38.223
9310.45.38.224/2910.45.38.225 – 10.45.38.23010.45.38.231
9410.45.38.232/2910.45.38.233 – 10.45.38.23810.45.38.239
9510.45.38.240/2910.45.38.241 – 10.45.38.24610.45.38.247
9610.45.38.248/2910.45.38.249 – 10.45.38.25410.45.38.255
9710.45.39.0/2910.45.39.1 – 10.45.39.610.45.39.7
9810.45.39.8/2910.45.39.9 – 10.45.39.1410.45.39.15
9910.45.39.16/2910.45.39.17 – 10.45.39.2210.45.39.23
10010.45.39.24/2910.45.39.25 – 10.45.39.3010.45.39.31
10110.45.39.32/2910.45.39.33 – 10.45.39.3810.45.39.39
10210.45.39.40/2910.45.39.41 – 10.45.39.4610.45.39.47
10310.45.39.48/2910.45.39.49 – 10.45.39.5410.45.39.55
10410.45.39.56/2910.45.39.57 – 10.45.39.6210.45.39.63
10510.45.39.64/2910.45.39.65 – 10.45.39.7010.45.39.71
10610.45.39.72/2910.45.39.73 – 10.45.39.7810.45.39.79
10710.45.39.80/2910.45.39.81 – 10.45.39.8610.45.39.87
10810.45.39.88/2910.45.39.89 – 10.45.39.9410.45.39.95
10910.45.39.96/2910.45.39.97 – 10.45.39.10210.45.39.103
11010.45.39.104/2910.45.39.105 – 10.45.39.11010.45.39.111
11110.45.39.112/2910.45.39.113 – 10.45.39.11810.45.39.119
11210.45.39.120/2910.45.39.121 – 10.45.39.12610.45.39.127
11310.45.39.128/2910.45.39.129 – 10.45.39.13410.45.39.135
11410.45.39.136/2910.45.39.137 – 10.45.39.14210.45.39.143
11510.45.39.144/2910.45.39.145 – 10.45.39.15010.45.39.151
11610.45.39.152/2910.45.39.153 – 10.45.39.15810.45.39.159
11710.45.39.160/2910.45.39.161 – 10.45.39.16610.45.39.167
11810.45.39.168/2910.45.39.169 – 10.45.39.17410.45.39.175
11910.45.39.176/2910.45.39.177 – 10.45.39.18210.45.39.183
12010.45.39.184/2910.45.39.185 – 10.45.39.19010.45.39.191
12110.45.39.192/2910.45.39.193 – 10.45.39.19810.45.39.199
12210.45.39.200/2910.45.39.201 – 10.45.39.20610.45.39.207
12310.45.39.208/2910.45.39.209 – 10.45.39.21410.45.39.215
12410.45.39.216/2910.45.39.217 – 10.45.39.22210.45.39.223
12510.45.39.224/2910.45.39.225 – 10.45.39.23010.45.39.231
12610.45.39.232/2910.45.39.233 – 10.45.39.23810.45.39.239
12710.45.39.240/2910.45.39.241 – 10.45.39.24610.45.39.247
12810.45.39.248/2910.45.39.249 – 10.45.39.25410.45.39.255
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 →