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)10.45.24.0/22
network10.45.24.0/22
broadcast10.45.27.255
first host10.45.24.1
last host10.45.27.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.45.24.0/22
address00001010.00101101.00011000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.00101101.00011000.00000000
broadcast00001010.00101101.00011011.11111111
green = network part, grey = host part
hex0x0a2d1800
decimal170727424
reverse dns0.24.45.10.in-addr.arpa
ipv4-mapped::ffff:a2d:1800

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.45.24.0/2910.45.24.1 – 10.45.24.610.45.24.7
210.45.24.8/2910.45.24.9 – 10.45.24.1410.45.24.15
310.45.24.16/2910.45.24.17 – 10.45.24.2210.45.24.23
410.45.24.24/2910.45.24.25 – 10.45.24.3010.45.24.31
510.45.24.32/2910.45.24.33 – 10.45.24.3810.45.24.39
610.45.24.40/2910.45.24.41 – 10.45.24.4610.45.24.47
710.45.24.48/2910.45.24.49 – 10.45.24.5410.45.24.55
810.45.24.56/2910.45.24.57 – 10.45.24.6210.45.24.63
910.45.24.64/2910.45.24.65 – 10.45.24.7010.45.24.71
1010.45.24.72/2910.45.24.73 – 10.45.24.7810.45.24.79
1110.45.24.80/2910.45.24.81 – 10.45.24.8610.45.24.87
1210.45.24.88/2910.45.24.89 – 10.45.24.9410.45.24.95
1310.45.24.96/2910.45.24.97 – 10.45.24.10210.45.24.103
1410.45.24.104/2910.45.24.105 – 10.45.24.11010.45.24.111
1510.45.24.112/2910.45.24.113 – 10.45.24.11810.45.24.119
1610.45.24.120/2910.45.24.121 – 10.45.24.12610.45.24.127
1710.45.24.128/2910.45.24.129 – 10.45.24.13410.45.24.135
1810.45.24.136/2910.45.24.137 – 10.45.24.14210.45.24.143
1910.45.24.144/2910.45.24.145 – 10.45.24.15010.45.24.151
2010.45.24.152/2910.45.24.153 – 10.45.24.15810.45.24.159
2110.45.24.160/2910.45.24.161 – 10.45.24.16610.45.24.167
2210.45.24.168/2910.45.24.169 – 10.45.24.17410.45.24.175
2310.45.24.176/2910.45.24.177 – 10.45.24.18210.45.24.183
2410.45.24.184/2910.45.24.185 – 10.45.24.19010.45.24.191
2510.45.24.192/2910.45.24.193 – 10.45.24.19810.45.24.199
2610.45.24.200/2910.45.24.201 – 10.45.24.20610.45.24.207
2710.45.24.208/2910.45.24.209 – 10.45.24.21410.45.24.215
2810.45.24.216/2910.45.24.217 – 10.45.24.22210.45.24.223
2910.45.24.224/2910.45.24.225 – 10.45.24.23010.45.24.231
3010.45.24.232/2910.45.24.233 – 10.45.24.23810.45.24.239
3110.45.24.240/2910.45.24.241 – 10.45.24.24610.45.24.247
3210.45.24.248/2910.45.24.249 – 10.45.24.25410.45.24.255
3310.45.25.0/2910.45.25.1 – 10.45.25.610.45.25.7
3410.45.25.8/2910.45.25.9 – 10.45.25.1410.45.25.15
3510.45.25.16/2910.45.25.17 – 10.45.25.2210.45.25.23
3610.45.25.24/2910.45.25.25 – 10.45.25.3010.45.25.31
3710.45.25.32/2910.45.25.33 – 10.45.25.3810.45.25.39
3810.45.25.40/2910.45.25.41 – 10.45.25.4610.45.25.47
3910.45.25.48/2910.45.25.49 – 10.45.25.5410.45.25.55
4010.45.25.56/2910.45.25.57 – 10.45.25.6210.45.25.63
4110.45.25.64/2910.45.25.65 – 10.45.25.7010.45.25.71
4210.45.25.72/2910.45.25.73 – 10.45.25.7810.45.25.79
4310.45.25.80/2910.45.25.81 – 10.45.25.8610.45.25.87
4410.45.25.88/2910.45.25.89 – 10.45.25.9410.45.25.95
4510.45.25.96/2910.45.25.97 – 10.45.25.10210.45.25.103
4610.45.25.104/2910.45.25.105 – 10.45.25.11010.45.25.111
4710.45.25.112/2910.45.25.113 – 10.45.25.11810.45.25.119
4810.45.25.120/2910.45.25.121 – 10.45.25.12610.45.25.127
4910.45.25.128/2910.45.25.129 – 10.45.25.13410.45.25.135
5010.45.25.136/2910.45.25.137 – 10.45.25.14210.45.25.143
5110.45.25.144/2910.45.25.145 – 10.45.25.15010.45.25.151
5210.45.25.152/2910.45.25.153 – 10.45.25.15810.45.25.159
5310.45.25.160/2910.45.25.161 – 10.45.25.16610.45.25.167
5410.45.25.168/2910.45.25.169 – 10.45.25.17410.45.25.175
5510.45.25.176/2910.45.25.177 – 10.45.25.18210.45.25.183
5610.45.25.184/2910.45.25.185 – 10.45.25.19010.45.25.191
5710.45.25.192/2910.45.25.193 – 10.45.25.19810.45.25.199
5810.45.25.200/2910.45.25.201 – 10.45.25.20610.45.25.207
5910.45.25.208/2910.45.25.209 – 10.45.25.21410.45.25.215
6010.45.25.216/2910.45.25.217 – 10.45.25.22210.45.25.223
6110.45.25.224/2910.45.25.225 – 10.45.25.23010.45.25.231
6210.45.25.232/2910.45.25.233 – 10.45.25.23810.45.25.239
6310.45.25.240/2910.45.25.241 – 10.45.25.24610.45.25.247
6410.45.25.248/2910.45.25.249 – 10.45.25.25410.45.25.255
6510.45.26.0/2910.45.26.1 – 10.45.26.610.45.26.7
6610.45.26.8/2910.45.26.9 – 10.45.26.1410.45.26.15
6710.45.26.16/2910.45.26.17 – 10.45.26.2210.45.26.23
6810.45.26.24/2910.45.26.25 – 10.45.26.3010.45.26.31
6910.45.26.32/2910.45.26.33 – 10.45.26.3810.45.26.39
7010.45.26.40/2910.45.26.41 – 10.45.26.4610.45.26.47
7110.45.26.48/2910.45.26.49 – 10.45.26.5410.45.26.55
7210.45.26.56/2910.45.26.57 – 10.45.26.6210.45.26.63
7310.45.26.64/2910.45.26.65 – 10.45.26.7010.45.26.71
7410.45.26.72/2910.45.26.73 – 10.45.26.7810.45.26.79
7510.45.26.80/2910.45.26.81 – 10.45.26.8610.45.26.87
7610.45.26.88/2910.45.26.89 – 10.45.26.9410.45.26.95
7710.45.26.96/2910.45.26.97 – 10.45.26.10210.45.26.103
7810.45.26.104/2910.45.26.105 – 10.45.26.11010.45.26.111
7910.45.26.112/2910.45.26.113 – 10.45.26.11810.45.26.119
8010.45.26.120/2910.45.26.121 – 10.45.26.12610.45.26.127
8110.45.26.128/2910.45.26.129 – 10.45.26.13410.45.26.135
8210.45.26.136/2910.45.26.137 – 10.45.26.14210.45.26.143
8310.45.26.144/2910.45.26.145 – 10.45.26.15010.45.26.151
8410.45.26.152/2910.45.26.153 – 10.45.26.15810.45.26.159
8510.45.26.160/2910.45.26.161 – 10.45.26.16610.45.26.167
8610.45.26.168/2910.45.26.169 – 10.45.26.17410.45.26.175
8710.45.26.176/2910.45.26.177 – 10.45.26.18210.45.26.183
8810.45.26.184/2910.45.26.185 – 10.45.26.19010.45.26.191
8910.45.26.192/2910.45.26.193 – 10.45.26.19810.45.26.199
9010.45.26.200/2910.45.26.201 – 10.45.26.20610.45.26.207
9110.45.26.208/2910.45.26.209 – 10.45.26.21410.45.26.215
9210.45.26.216/2910.45.26.217 – 10.45.26.22210.45.26.223
9310.45.26.224/2910.45.26.225 – 10.45.26.23010.45.26.231
9410.45.26.232/2910.45.26.233 – 10.45.26.23810.45.26.239
9510.45.26.240/2910.45.26.241 – 10.45.26.24610.45.26.247
9610.45.26.248/2910.45.26.249 – 10.45.26.25410.45.26.255
9710.45.27.0/2910.45.27.1 – 10.45.27.610.45.27.7
9810.45.27.8/2910.45.27.9 – 10.45.27.1410.45.27.15
9910.45.27.16/2910.45.27.17 – 10.45.27.2210.45.27.23
10010.45.27.24/2910.45.27.25 – 10.45.27.3010.45.27.31
10110.45.27.32/2910.45.27.33 – 10.45.27.3810.45.27.39
10210.45.27.40/2910.45.27.41 – 10.45.27.4610.45.27.47
10310.45.27.48/2910.45.27.49 – 10.45.27.5410.45.27.55
10410.45.27.56/2910.45.27.57 – 10.45.27.6210.45.27.63
10510.45.27.64/2910.45.27.65 – 10.45.27.7010.45.27.71
10610.45.27.72/2910.45.27.73 – 10.45.27.7810.45.27.79
10710.45.27.80/2910.45.27.81 – 10.45.27.8610.45.27.87
10810.45.27.88/2910.45.27.89 – 10.45.27.9410.45.27.95
10910.45.27.96/2910.45.27.97 – 10.45.27.10210.45.27.103
11010.45.27.104/2910.45.27.105 – 10.45.27.11010.45.27.111
11110.45.27.112/2910.45.27.113 – 10.45.27.11810.45.27.119
11210.45.27.120/2910.45.27.121 – 10.45.27.12610.45.27.127
11310.45.27.128/2910.45.27.129 – 10.45.27.13410.45.27.135
11410.45.27.136/2910.45.27.137 – 10.45.27.14210.45.27.143
11510.45.27.144/2910.45.27.145 – 10.45.27.15010.45.27.151
11610.45.27.152/2910.45.27.153 – 10.45.27.15810.45.27.159
11710.45.27.160/2910.45.27.161 – 10.45.27.16610.45.27.167
11810.45.27.168/2910.45.27.169 – 10.45.27.17410.45.27.175
11910.45.27.176/2910.45.27.177 – 10.45.27.18210.45.27.183
12010.45.27.184/2910.45.27.185 – 10.45.27.19010.45.27.191
12110.45.27.192/2910.45.27.193 – 10.45.27.19810.45.27.199
12210.45.27.200/2910.45.27.201 – 10.45.27.20610.45.27.207
12310.45.27.208/2910.45.27.209 – 10.45.27.21410.45.27.215
12410.45.27.216/2910.45.27.217 – 10.45.27.22210.45.27.223
12510.45.27.224/2910.45.27.225 – 10.45.27.23010.45.27.231
12610.45.27.232/2910.45.27.233 – 10.45.27.23810.45.27.239
12710.45.27.240/2910.45.27.241 – 10.45.27.24610.45.27.247
12810.45.27.248/2910.45.27.249 – 10.45.27.25410.45.27.255
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 →