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)10.45.200.0/22
network10.45.200.0/22
broadcast10.45.203.255
first host10.45.200.1
last host10.45.203.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.45.200.0/22
address00001010.00101101.11001000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.00101101.11001000.00000000
broadcast00001010.00101101.11001011.11111111
green = network part, grey = host part
hex0x0a2dc800
decimal170772480
reverse dns0.200.45.10.in-addr.arpa
ipv4-mapped::ffff:a2d:c800

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.45.200.0/2910.45.200.1 – 10.45.200.610.45.200.7
210.45.200.8/2910.45.200.9 – 10.45.200.1410.45.200.15
310.45.200.16/2910.45.200.17 – 10.45.200.2210.45.200.23
410.45.200.24/2910.45.200.25 – 10.45.200.3010.45.200.31
510.45.200.32/2910.45.200.33 – 10.45.200.3810.45.200.39
610.45.200.40/2910.45.200.41 – 10.45.200.4610.45.200.47
710.45.200.48/2910.45.200.49 – 10.45.200.5410.45.200.55
810.45.200.56/2910.45.200.57 – 10.45.200.6210.45.200.63
910.45.200.64/2910.45.200.65 – 10.45.200.7010.45.200.71
1010.45.200.72/2910.45.200.73 – 10.45.200.7810.45.200.79
1110.45.200.80/2910.45.200.81 – 10.45.200.8610.45.200.87
1210.45.200.88/2910.45.200.89 – 10.45.200.9410.45.200.95
1310.45.200.96/2910.45.200.97 – 10.45.200.10210.45.200.103
1410.45.200.104/2910.45.200.105 – 10.45.200.11010.45.200.111
1510.45.200.112/2910.45.200.113 – 10.45.200.11810.45.200.119
1610.45.200.120/2910.45.200.121 – 10.45.200.12610.45.200.127
1710.45.200.128/2910.45.200.129 – 10.45.200.13410.45.200.135
1810.45.200.136/2910.45.200.137 – 10.45.200.14210.45.200.143
1910.45.200.144/2910.45.200.145 – 10.45.200.15010.45.200.151
2010.45.200.152/2910.45.200.153 – 10.45.200.15810.45.200.159
2110.45.200.160/2910.45.200.161 – 10.45.200.16610.45.200.167
2210.45.200.168/2910.45.200.169 – 10.45.200.17410.45.200.175
2310.45.200.176/2910.45.200.177 – 10.45.200.18210.45.200.183
2410.45.200.184/2910.45.200.185 – 10.45.200.19010.45.200.191
2510.45.200.192/2910.45.200.193 – 10.45.200.19810.45.200.199
2610.45.200.200/2910.45.200.201 – 10.45.200.20610.45.200.207
2710.45.200.208/2910.45.200.209 – 10.45.200.21410.45.200.215
2810.45.200.216/2910.45.200.217 – 10.45.200.22210.45.200.223
2910.45.200.224/2910.45.200.225 – 10.45.200.23010.45.200.231
3010.45.200.232/2910.45.200.233 – 10.45.200.23810.45.200.239
3110.45.200.240/2910.45.200.241 – 10.45.200.24610.45.200.247
3210.45.200.248/2910.45.200.249 – 10.45.200.25410.45.200.255
3310.45.201.0/2910.45.201.1 – 10.45.201.610.45.201.7
3410.45.201.8/2910.45.201.9 – 10.45.201.1410.45.201.15
3510.45.201.16/2910.45.201.17 – 10.45.201.2210.45.201.23
3610.45.201.24/2910.45.201.25 – 10.45.201.3010.45.201.31
3710.45.201.32/2910.45.201.33 – 10.45.201.3810.45.201.39
3810.45.201.40/2910.45.201.41 – 10.45.201.4610.45.201.47
3910.45.201.48/2910.45.201.49 – 10.45.201.5410.45.201.55
4010.45.201.56/2910.45.201.57 – 10.45.201.6210.45.201.63
4110.45.201.64/2910.45.201.65 – 10.45.201.7010.45.201.71
4210.45.201.72/2910.45.201.73 – 10.45.201.7810.45.201.79
4310.45.201.80/2910.45.201.81 – 10.45.201.8610.45.201.87
4410.45.201.88/2910.45.201.89 – 10.45.201.9410.45.201.95
4510.45.201.96/2910.45.201.97 – 10.45.201.10210.45.201.103
4610.45.201.104/2910.45.201.105 – 10.45.201.11010.45.201.111
4710.45.201.112/2910.45.201.113 – 10.45.201.11810.45.201.119
4810.45.201.120/2910.45.201.121 – 10.45.201.12610.45.201.127
4910.45.201.128/2910.45.201.129 – 10.45.201.13410.45.201.135
5010.45.201.136/2910.45.201.137 – 10.45.201.14210.45.201.143
5110.45.201.144/2910.45.201.145 – 10.45.201.15010.45.201.151
5210.45.201.152/2910.45.201.153 – 10.45.201.15810.45.201.159
5310.45.201.160/2910.45.201.161 – 10.45.201.16610.45.201.167
5410.45.201.168/2910.45.201.169 – 10.45.201.17410.45.201.175
5510.45.201.176/2910.45.201.177 – 10.45.201.18210.45.201.183
5610.45.201.184/2910.45.201.185 – 10.45.201.19010.45.201.191
5710.45.201.192/2910.45.201.193 – 10.45.201.19810.45.201.199
5810.45.201.200/2910.45.201.201 – 10.45.201.20610.45.201.207
5910.45.201.208/2910.45.201.209 – 10.45.201.21410.45.201.215
6010.45.201.216/2910.45.201.217 – 10.45.201.22210.45.201.223
6110.45.201.224/2910.45.201.225 – 10.45.201.23010.45.201.231
6210.45.201.232/2910.45.201.233 – 10.45.201.23810.45.201.239
6310.45.201.240/2910.45.201.241 – 10.45.201.24610.45.201.247
6410.45.201.248/2910.45.201.249 – 10.45.201.25410.45.201.255
6510.45.202.0/2910.45.202.1 – 10.45.202.610.45.202.7
6610.45.202.8/2910.45.202.9 – 10.45.202.1410.45.202.15
6710.45.202.16/2910.45.202.17 – 10.45.202.2210.45.202.23
6810.45.202.24/2910.45.202.25 – 10.45.202.3010.45.202.31
6910.45.202.32/2910.45.202.33 – 10.45.202.3810.45.202.39
7010.45.202.40/2910.45.202.41 – 10.45.202.4610.45.202.47
7110.45.202.48/2910.45.202.49 – 10.45.202.5410.45.202.55
7210.45.202.56/2910.45.202.57 – 10.45.202.6210.45.202.63
7310.45.202.64/2910.45.202.65 – 10.45.202.7010.45.202.71
7410.45.202.72/2910.45.202.73 – 10.45.202.7810.45.202.79
7510.45.202.80/2910.45.202.81 – 10.45.202.8610.45.202.87
7610.45.202.88/2910.45.202.89 – 10.45.202.9410.45.202.95
7710.45.202.96/2910.45.202.97 – 10.45.202.10210.45.202.103
7810.45.202.104/2910.45.202.105 – 10.45.202.11010.45.202.111
7910.45.202.112/2910.45.202.113 – 10.45.202.11810.45.202.119
8010.45.202.120/2910.45.202.121 – 10.45.202.12610.45.202.127
8110.45.202.128/2910.45.202.129 – 10.45.202.13410.45.202.135
8210.45.202.136/2910.45.202.137 – 10.45.202.14210.45.202.143
8310.45.202.144/2910.45.202.145 – 10.45.202.15010.45.202.151
8410.45.202.152/2910.45.202.153 – 10.45.202.15810.45.202.159
8510.45.202.160/2910.45.202.161 – 10.45.202.16610.45.202.167
8610.45.202.168/2910.45.202.169 – 10.45.202.17410.45.202.175
8710.45.202.176/2910.45.202.177 – 10.45.202.18210.45.202.183
8810.45.202.184/2910.45.202.185 – 10.45.202.19010.45.202.191
8910.45.202.192/2910.45.202.193 – 10.45.202.19810.45.202.199
9010.45.202.200/2910.45.202.201 – 10.45.202.20610.45.202.207
9110.45.202.208/2910.45.202.209 – 10.45.202.21410.45.202.215
9210.45.202.216/2910.45.202.217 – 10.45.202.22210.45.202.223
9310.45.202.224/2910.45.202.225 – 10.45.202.23010.45.202.231
9410.45.202.232/2910.45.202.233 – 10.45.202.23810.45.202.239
9510.45.202.240/2910.45.202.241 – 10.45.202.24610.45.202.247
9610.45.202.248/2910.45.202.249 – 10.45.202.25410.45.202.255
9710.45.203.0/2910.45.203.1 – 10.45.203.610.45.203.7
9810.45.203.8/2910.45.203.9 – 10.45.203.1410.45.203.15
9910.45.203.16/2910.45.203.17 – 10.45.203.2210.45.203.23
10010.45.203.24/2910.45.203.25 – 10.45.203.3010.45.203.31
10110.45.203.32/2910.45.203.33 – 10.45.203.3810.45.203.39
10210.45.203.40/2910.45.203.41 – 10.45.203.4610.45.203.47
10310.45.203.48/2910.45.203.49 – 10.45.203.5410.45.203.55
10410.45.203.56/2910.45.203.57 – 10.45.203.6210.45.203.63
10510.45.203.64/2910.45.203.65 – 10.45.203.7010.45.203.71
10610.45.203.72/2910.45.203.73 – 10.45.203.7810.45.203.79
10710.45.203.80/2910.45.203.81 – 10.45.203.8610.45.203.87
10810.45.203.88/2910.45.203.89 – 10.45.203.9410.45.203.95
10910.45.203.96/2910.45.203.97 – 10.45.203.10210.45.203.103
11010.45.203.104/2910.45.203.105 – 10.45.203.11010.45.203.111
11110.45.203.112/2910.45.203.113 – 10.45.203.11810.45.203.119
11210.45.203.120/2910.45.203.121 – 10.45.203.12610.45.203.127
11310.45.203.128/2910.45.203.129 – 10.45.203.13410.45.203.135
11410.45.203.136/2910.45.203.137 – 10.45.203.14210.45.203.143
11510.45.203.144/2910.45.203.145 – 10.45.203.15010.45.203.151
11610.45.203.152/2910.45.203.153 – 10.45.203.15810.45.203.159
11710.45.203.160/2910.45.203.161 – 10.45.203.16610.45.203.167
11810.45.203.168/2910.45.203.169 – 10.45.203.17410.45.203.175
11910.45.203.176/2910.45.203.177 – 10.45.203.18210.45.203.183
12010.45.203.184/2910.45.203.185 – 10.45.203.19010.45.203.191
12110.45.203.192/2910.45.203.193 – 10.45.203.19810.45.203.199
12210.45.203.200/2910.45.203.201 – 10.45.203.20610.45.203.207
12310.45.203.208/2910.45.203.209 – 10.45.203.21410.45.203.215
12410.45.203.216/2910.45.203.217 – 10.45.203.22210.45.203.223
12510.45.203.224/2910.45.203.225 – 10.45.203.23010.45.203.231
12610.45.203.232/2910.45.203.233 – 10.45.203.23810.45.203.239
12710.45.203.240/2910.45.203.241 – 10.45.203.24610.45.203.247
12810.45.203.248/2910.45.203.249 – 10.45.203.25410.45.203.255
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 →