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)10.45.192.0/22
network10.45.192.0/22
broadcast10.45.195.255
first host10.45.192.1
last host10.45.195.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.45.192.0/22
address00001010.00101101.11000000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.00101101.11000000.00000000
broadcast00001010.00101101.11000011.11111111
green = network part, grey = host part
hex0x0a2dc000
decimal170770432
reverse dns0.192.45.10.in-addr.arpa
ipv4-mapped::ffff:a2d:c000

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.45.192.0/2910.45.192.1 – 10.45.192.610.45.192.7
210.45.192.8/2910.45.192.9 – 10.45.192.1410.45.192.15
310.45.192.16/2910.45.192.17 – 10.45.192.2210.45.192.23
410.45.192.24/2910.45.192.25 – 10.45.192.3010.45.192.31
510.45.192.32/2910.45.192.33 – 10.45.192.3810.45.192.39
610.45.192.40/2910.45.192.41 – 10.45.192.4610.45.192.47
710.45.192.48/2910.45.192.49 – 10.45.192.5410.45.192.55
810.45.192.56/2910.45.192.57 – 10.45.192.6210.45.192.63
910.45.192.64/2910.45.192.65 – 10.45.192.7010.45.192.71
1010.45.192.72/2910.45.192.73 – 10.45.192.7810.45.192.79
1110.45.192.80/2910.45.192.81 – 10.45.192.8610.45.192.87
1210.45.192.88/2910.45.192.89 – 10.45.192.9410.45.192.95
1310.45.192.96/2910.45.192.97 – 10.45.192.10210.45.192.103
1410.45.192.104/2910.45.192.105 – 10.45.192.11010.45.192.111
1510.45.192.112/2910.45.192.113 – 10.45.192.11810.45.192.119
1610.45.192.120/2910.45.192.121 – 10.45.192.12610.45.192.127
1710.45.192.128/2910.45.192.129 – 10.45.192.13410.45.192.135
1810.45.192.136/2910.45.192.137 – 10.45.192.14210.45.192.143
1910.45.192.144/2910.45.192.145 – 10.45.192.15010.45.192.151
2010.45.192.152/2910.45.192.153 – 10.45.192.15810.45.192.159
2110.45.192.160/2910.45.192.161 – 10.45.192.16610.45.192.167
2210.45.192.168/2910.45.192.169 – 10.45.192.17410.45.192.175
2310.45.192.176/2910.45.192.177 – 10.45.192.18210.45.192.183
2410.45.192.184/2910.45.192.185 – 10.45.192.19010.45.192.191
2510.45.192.192/2910.45.192.193 – 10.45.192.19810.45.192.199
2610.45.192.200/2910.45.192.201 – 10.45.192.20610.45.192.207
2710.45.192.208/2910.45.192.209 – 10.45.192.21410.45.192.215
2810.45.192.216/2910.45.192.217 – 10.45.192.22210.45.192.223
2910.45.192.224/2910.45.192.225 – 10.45.192.23010.45.192.231
3010.45.192.232/2910.45.192.233 – 10.45.192.23810.45.192.239
3110.45.192.240/2910.45.192.241 – 10.45.192.24610.45.192.247
3210.45.192.248/2910.45.192.249 – 10.45.192.25410.45.192.255
3310.45.193.0/2910.45.193.1 – 10.45.193.610.45.193.7
3410.45.193.8/2910.45.193.9 – 10.45.193.1410.45.193.15
3510.45.193.16/2910.45.193.17 – 10.45.193.2210.45.193.23
3610.45.193.24/2910.45.193.25 – 10.45.193.3010.45.193.31
3710.45.193.32/2910.45.193.33 – 10.45.193.3810.45.193.39
3810.45.193.40/2910.45.193.41 – 10.45.193.4610.45.193.47
3910.45.193.48/2910.45.193.49 – 10.45.193.5410.45.193.55
4010.45.193.56/2910.45.193.57 – 10.45.193.6210.45.193.63
4110.45.193.64/2910.45.193.65 – 10.45.193.7010.45.193.71
4210.45.193.72/2910.45.193.73 – 10.45.193.7810.45.193.79
4310.45.193.80/2910.45.193.81 – 10.45.193.8610.45.193.87
4410.45.193.88/2910.45.193.89 – 10.45.193.9410.45.193.95
4510.45.193.96/2910.45.193.97 – 10.45.193.10210.45.193.103
4610.45.193.104/2910.45.193.105 – 10.45.193.11010.45.193.111
4710.45.193.112/2910.45.193.113 – 10.45.193.11810.45.193.119
4810.45.193.120/2910.45.193.121 – 10.45.193.12610.45.193.127
4910.45.193.128/2910.45.193.129 – 10.45.193.13410.45.193.135
5010.45.193.136/2910.45.193.137 – 10.45.193.14210.45.193.143
5110.45.193.144/2910.45.193.145 – 10.45.193.15010.45.193.151
5210.45.193.152/2910.45.193.153 – 10.45.193.15810.45.193.159
5310.45.193.160/2910.45.193.161 – 10.45.193.16610.45.193.167
5410.45.193.168/2910.45.193.169 – 10.45.193.17410.45.193.175
5510.45.193.176/2910.45.193.177 – 10.45.193.18210.45.193.183
5610.45.193.184/2910.45.193.185 – 10.45.193.19010.45.193.191
5710.45.193.192/2910.45.193.193 – 10.45.193.19810.45.193.199
5810.45.193.200/2910.45.193.201 – 10.45.193.20610.45.193.207
5910.45.193.208/2910.45.193.209 – 10.45.193.21410.45.193.215
6010.45.193.216/2910.45.193.217 – 10.45.193.22210.45.193.223
6110.45.193.224/2910.45.193.225 – 10.45.193.23010.45.193.231
6210.45.193.232/2910.45.193.233 – 10.45.193.23810.45.193.239
6310.45.193.240/2910.45.193.241 – 10.45.193.24610.45.193.247
6410.45.193.248/2910.45.193.249 – 10.45.193.25410.45.193.255
6510.45.194.0/2910.45.194.1 – 10.45.194.610.45.194.7
6610.45.194.8/2910.45.194.9 – 10.45.194.1410.45.194.15
6710.45.194.16/2910.45.194.17 – 10.45.194.2210.45.194.23
6810.45.194.24/2910.45.194.25 – 10.45.194.3010.45.194.31
6910.45.194.32/2910.45.194.33 – 10.45.194.3810.45.194.39
7010.45.194.40/2910.45.194.41 – 10.45.194.4610.45.194.47
7110.45.194.48/2910.45.194.49 – 10.45.194.5410.45.194.55
7210.45.194.56/2910.45.194.57 – 10.45.194.6210.45.194.63
7310.45.194.64/2910.45.194.65 – 10.45.194.7010.45.194.71
7410.45.194.72/2910.45.194.73 – 10.45.194.7810.45.194.79
7510.45.194.80/2910.45.194.81 – 10.45.194.8610.45.194.87
7610.45.194.88/2910.45.194.89 – 10.45.194.9410.45.194.95
7710.45.194.96/2910.45.194.97 – 10.45.194.10210.45.194.103
7810.45.194.104/2910.45.194.105 – 10.45.194.11010.45.194.111
7910.45.194.112/2910.45.194.113 – 10.45.194.11810.45.194.119
8010.45.194.120/2910.45.194.121 – 10.45.194.12610.45.194.127
8110.45.194.128/2910.45.194.129 – 10.45.194.13410.45.194.135
8210.45.194.136/2910.45.194.137 – 10.45.194.14210.45.194.143
8310.45.194.144/2910.45.194.145 – 10.45.194.15010.45.194.151
8410.45.194.152/2910.45.194.153 – 10.45.194.15810.45.194.159
8510.45.194.160/2910.45.194.161 – 10.45.194.16610.45.194.167
8610.45.194.168/2910.45.194.169 – 10.45.194.17410.45.194.175
8710.45.194.176/2910.45.194.177 – 10.45.194.18210.45.194.183
8810.45.194.184/2910.45.194.185 – 10.45.194.19010.45.194.191
8910.45.194.192/2910.45.194.193 – 10.45.194.19810.45.194.199
9010.45.194.200/2910.45.194.201 – 10.45.194.20610.45.194.207
9110.45.194.208/2910.45.194.209 – 10.45.194.21410.45.194.215
9210.45.194.216/2910.45.194.217 – 10.45.194.22210.45.194.223
9310.45.194.224/2910.45.194.225 – 10.45.194.23010.45.194.231
9410.45.194.232/2910.45.194.233 – 10.45.194.23810.45.194.239
9510.45.194.240/2910.45.194.241 – 10.45.194.24610.45.194.247
9610.45.194.248/2910.45.194.249 – 10.45.194.25410.45.194.255
9710.45.195.0/2910.45.195.1 – 10.45.195.610.45.195.7
9810.45.195.8/2910.45.195.9 – 10.45.195.1410.45.195.15
9910.45.195.16/2910.45.195.17 – 10.45.195.2210.45.195.23
10010.45.195.24/2910.45.195.25 – 10.45.195.3010.45.195.31
10110.45.195.32/2910.45.195.33 – 10.45.195.3810.45.195.39
10210.45.195.40/2910.45.195.41 – 10.45.195.4610.45.195.47
10310.45.195.48/2910.45.195.49 – 10.45.195.5410.45.195.55
10410.45.195.56/2910.45.195.57 – 10.45.195.6210.45.195.63
10510.45.195.64/2910.45.195.65 – 10.45.195.7010.45.195.71
10610.45.195.72/2910.45.195.73 – 10.45.195.7810.45.195.79
10710.45.195.80/2910.45.195.81 – 10.45.195.8610.45.195.87
10810.45.195.88/2910.45.195.89 – 10.45.195.9410.45.195.95
10910.45.195.96/2910.45.195.97 – 10.45.195.10210.45.195.103
11010.45.195.104/2910.45.195.105 – 10.45.195.11010.45.195.111
11110.45.195.112/2910.45.195.113 – 10.45.195.11810.45.195.119
11210.45.195.120/2910.45.195.121 – 10.45.195.12610.45.195.127
11310.45.195.128/2910.45.195.129 – 10.45.195.13410.45.195.135
11410.45.195.136/2910.45.195.137 – 10.45.195.14210.45.195.143
11510.45.195.144/2910.45.195.145 – 10.45.195.15010.45.195.151
11610.45.195.152/2910.45.195.153 – 10.45.195.15810.45.195.159
11710.45.195.160/2910.45.195.161 – 10.45.195.16610.45.195.167
11810.45.195.168/2910.45.195.169 – 10.45.195.17410.45.195.175
11910.45.195.176/2910.45.195.177 – 10.45.195.18210.45.195.183
12010.45.195.184/2910.45.195.185 – 10.45.195.19010.45.195.191
12110.45.195.192/2910.45.195.193 – 10.45.195.19810.45.195.199
12210.45.195.200/2910.45.195.201 – 10.45.195.20610.45.195.207
12310.45.195.208/2910.45.195.209 – 10.45.195.21410.45.195.215
12410.45.195.216/2910.45.195.217 – 10.45.195.22210.45.195.223
12510.45.195.224/2910.45.195.225 – 10.45.195.23010.45.195.231
12610.45.195.232/2910.45.195.233 – 10.45.195.23810.45.195.239
12710.45.195.240/2910.45.195.241 – 10.45.195.24610.45.195.247
12810.45.195.248/2910.45.195.249 – 10.45.195.25410.45.195.255
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 →