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)10.87.92.0/22
network10.87.92.0/22
broadcast10.87.95.255
first host10.87.92.1
last host10.87.95.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.87.92.0/22
address00001010.01010111.01011100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01010111.01011100.00000000
broadcast00001010.01010111.01011111.11111111
green = network part, grey = host part
hex0x0a575c00
decimal173497344
reverse dns0.92.87.10.in-addr.arpa
ipv4-mapped::ffff:a57:5c00

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.87.92.0/2910.87.92.1 – 10.87.92.610.87.92.7
210.87.92.8/2910.87.92.9 – 10.87.92.1410.87.92.15
310.87.92.16/2910.87.92.17 – 10.87.92.2210.87.92.23
410.87.92.24/2910.87.92.25 – 10.87.92.3010.87.92.31
510.87.92.32/2910.87.92.33 – 10.87.92.3810.87.92.39
610.87.92.40/2910.87.92.41 – 10.87.92.4610.87.92.47
710.87.92.48/2910.87.92.49 – 10.87.92.5410.87.92.55
810.87.92.56/2910.87.92.57 – 10.87.92.6210.87.92.63
910.87.92.64/2910.87.92.65 – 10.87.92.7010.87.92.71
1010.87.92.72/2910.87.92.73 – 10.87.92.7810.87.92.79
1110.87.92.80/2910.87.92.81 – 10.87.92.8610.87.92.87
1210.87.92.88/2910.87.92.89 – 10.87.92.9410.87.92.95
1310.87.92.96/2910.87.92.97 – 10.87.92.10210.87.92.103
1410.87.92.104/2910.87.92.105 – 10.87.92.11010.87.92.111
1510.87.92.112/2910.87.92.113 – 10.87.92.11810.87.92.119
1610.87.92.120/2910.87.92.121 – 10.87.92.12610.87.92.127
1710.87.92.128/2910.87.92.129 – 10.87.92.13410.87.92.135
1810.87.92.136/2910.87.92.137 – 10.87.92.14210.87.92.143
1910.87.92.144/2910.87.92.145 – 10.87.92.15010.87.92.151
2010.87.92.152/2910.87.92.153 – 10.87.92.15810.87.92.159
2110.87.92.160/2910.87.92.161 – 10.87.92.16610.87.92.167
2210.87.92.168/2910.87.92.169 – 10.87.92.17410.87.92.175
2310.87.92.176/2910.87.92.177 – 10.87.92.18210.87.92.183
2410.87.92.184/2910.87.92.185 – 10.87.92.19010.87.92.191
2510.87.92.192/2910.87.92.193 – 10.87.92.19810.87.92.199
2610.87.92.200/2910.87.92.201 – 10.87.92.20610.87.92.207
2710.87.92.208/2910.87.92.209 – 10.87.92.21410.87.92.215
2810.87.92.216/2910.87.92.217 – 10.87.92.22210.87.92.223
2910.87.92.224/2910.87.92.225 – 10.87.92.23010.87.92.231
3010.87.92.232/2910.87.92.233 – 10.87.92.23810.87.92.239
3110.87.92.240/2910.87.92.241 – 10.87.92.24610.87.92.247
3210.87.92.248/2910.87.92.249 – 10.87.92.25410.87.92.255
3310.87.93.0/2910.87.93.1 – 10.87.93.610.87.93.7
3410.87.93.8/2910.87.93.9 – 10.87.93.1410.87.93.15
3510.87.93.16/2910.87.93.17 – 10.87.93.2210.87.93.23
3610.87.93.24/2910.87.93.25 – 10.87.93.3010.87.93.31
3710.87.93.32/2910.87.93.33 – 10.87.93.3810.87.93.39
3810.87.93.40/2910.87.93.41 – 10.87.93.4610.87.93.47
3910.87.93.48/2910.87.93.49 – 10.87.93.5410.87.93.55
4010.87.93.56/2910.87.93.57 – 10.87.93.6210.87.93.63
4110.87.93.64/2910.87.93.65 – 10.87.93.7010.87.93.71
4210.87.93.72/2910.87.93.73 – 10.87.93.7810.87.93.79
4310.87.93.80/2910.87.93.81 – 10.87.93.8610.87.93.87
4410.87.93.88/2910.87.93.89 – 10.87.93.9410.87.93.95
4510.87.93.96/2910.87.93.97 – 10.87.93.10210.87.93.103
4610.87.93.104/2910.87.93.105 – 10.87.93.11010.87.93.111
4710.87.93.112/2910.87.93.113 – 10.87.93.11810.87.93.119
4810.87.93.120/2910.87.93.121 – 10.87.93.12610.87.93.127
4910.87.93.128/2910.87.93.129 – 10.87.93.13410.87.93.135
5010.87.93.136/2910.87.93.137 – 10.87.93.14210.87.93.143
5110.87.93.144/2910.87.93.145 – 10.87.93.15010.87.93.151
5210.87.93.152/2910.87.93.153 – 10.87.93.15810.87.93.159
5310.87.93.160/2910.87.93.161 – 10.87.93.16610.87.93.167
5410.87.93.168/2910.87.93.169 – 10.87.93.17410.87.93.175
5510.87.93.176/2910.87.93.177 – 10.87.93.18210.87.93.183
5610.87.93.184/2910.87.93.185 – 10.87.93.19010.87.93.191
5710.87.93.192/2910.87.93.193 – 10.87.93.19810.87.93.199
5810.87.93.200/2910.87.93.201 – 10.87.93.20610.87.93.207
5910.87.93.208/2910.87.93.209 – 10.87.93.21410.87.93.215
6010.87.93.216/2910.87.93.217 – 10.87.93.22210.87.93.223
6110.87.93.224/2910.87.93.225 – 10.87.93.23010.87.93.231
6210.87.93.232/2910.87.93.233 – 10.87.93.23810.87.93.239
6310.87.93.240/2910.87.93.241 – 10.87.93.24610.87.93.247
6410.87.93.248/2910.87.93.249 – 10.87.93.25410.87.93.255
6510.87.94.0/2910.87.94.1 – 10.87.94.610.87.94.7
6610.87.94.8/2910.87.94.9 – 10.87.94.1410.87.94.15
6710.87.94.16/2910.87.94.17 – 10.87.94.2210.87.94.23
6810.87.94.24/2910.87.94.25 – 10.87.94.3010.87.94.31
6910.87.94.32/2910.87.94.33 – 10.87.94.3810.87.94.39
7010.87.94.40/2910.87.94.41 – 10.87.94.4610.87.94.47
7110.87.94.48/2910.87.94.49 – 10.87.94.5410.87.94.55
7210.87.94.56/2910.87.94.57 – 10.87.94.6210.87.94.63
7310.87.94.64/2910.87.94.65 – 10.87.94.7010.87.94.71
7410.87.94.72/2910.87.94.73 – 10.87.94.7810.87.94.79
7510.87.94.80/2910.87.94.81 – 10.87.94.8610.87.94.87
7610.87.94.88/2910.87.94.89 – 10.87.94.9410.87.94.95
7710.87.94.96/2910.87.94.97 – 10.87.94.10210.87.94.103
7810.87.94.104/2910.87.94.105 – 10.87.94.11010.87.94.111
7910.87.94.112/2910.87.94.113 – 10.87.94.11810.87.94.119
8010.87.94.120/2910.87.94.121 – 10.87.94.12610.87.94.127
8110.87.94.128/2910.87.94.129 – 10.87.94.13410.87.94.135
8210.87.94.136/2910.87.94.137 – 10.87.94.14210.87.94.143
8310.87.94.144/2910.87.94.145 – 10.87.94.15010.87.94.151
8410.87.94.152/2910.87.94.153 – 10.87.94.15810.87.94.159
8510.87.94.160/2910.87.94.161 – 10.87.94.16610.87.94.167
8610.87.94.168/2910.87.94.169 – 10.87.94.17410.87.94.175
8710.87.94.176/2910.87.94.177 – 10.87.94.18210.87.94.183
8810.87.94.184/2910.87.94.185 – 10.87.94.19010.87.94.191
8910.87.94.192/2910.87.94.193 – 10.87.94.19810.87.94.199
9010.87.94.200/2910.87.94.201 – 10.87.94.20610.87.94.207
9110.87.94.208/2910.87.94.209 – 10.87.94.21410.87.94.215
9210.87.94.216/2910.87.94.217 – 10.87.94.22210.87.94.223
9310.87.94.224/2910.87.94.225 – 10.87.94.23010.87.94.231
9410.87.94.232/2910.87.94.233 – 10.87.94.23810.87.94.239
9510.87.94.240/2910.87.94.241 – 10.87.94.24610.87.94.247
9610.87.94.248/2910.87.94.249 – 10.87.94.25410.87.94.255
9710.87.95.0/2910.87.95.1 – 10.87.95.610.87.95.7
9810.87.95.8/2910.87.95.9 – 10.87.95.1410.87.95.15
9910.87.95.16/2910.87.95.17 – 10.87.95.2210.87.95.23
10010.87.95.24/2910.87.95.25 – 10.87.95.3010.87.95.31
10110.87.95.32/2910.87.95.33 – 10.87.95.3810.87.95.39
10210.87.95.40/2910.87.95.41 – 10.87.95.4610.87.95.47
10310.87.95.48/2910.87.95.49 – 10.87.95.5410.87.95.55
10410.87.95.56/2910.87.95.57 – 10.87.95.6210.87.95.63
10510.87.95.64/2910.87.95.65 – 10.87.95.7010.87.95.71
10610.87.95.72/2910.87.95.73 – 10.87.95.7810.87.95.79
10710.87.95.80/2910.87.95.81 – 10.87.95.8610.87.95.87
10810.87.95.88/2910.87.95.89 – 10.87.95.9410.87.95.95
10910.87.95.96/2910.87.95.97 – 10.87.95.10210.87.95.103
11010.87.95.104/2910.87.95.105 – 10.87.95.11010.87.95.111
11110.87.95.112/2910.87.95.113 – 10.87.95.11810.87.95.119
11210.87.95.120/2910.87.95.121 – 10.87.95.12610.87.95.127
11310.87.95.128/2910.87.95.129 – 10.87.95.13410.87.95.135
11410.87.95.136/2910.87.95.137 – 10.87.95.14210.87.95.143
11510.87.95.144/2910.87.95.145 – 10.87.95.15010.87.95.151
11610.87.95.152/2910.87.95.153 – 10.87.95.15810.87.95.159
11710.87.95.160/2910.87.95.161 – 10.87.95.16610.87.95.167
11810.87.95.168/2910.87.95.169 – 10.87.95.17410.87.95.175
11910.87.95.176/2910.87.95.177 – 10.87.95.18210.87.95.183
12010.87.95.184/2910.87.95.185 – 10.87.95.19010.87.95.191
12110.87.95.192/2910.87.95.193 – 10.87.95.19810.87.95.199
12210.87.95.200/2910.87.95.201 – 10.87.95.20610.87.95.207
12310.87.95.208/2910.87.95.209 – 10.87.95.21410.87.95.215
12410.87.95.216/2910.87.95.217 – 10.87.95.22210.87.95.223
12510.87.95.224/2910.87.95.225 – 10.87.95.23010.87.95.231
12610.87.95.232/2910.87.95.233 – 10.87.95.23810.87.95.239
12710.87.95.240/2910.87.95.241 – 10.87.95.24610.87.95.247
12810.87.95.248/2910.87.95.249 – 10.87.95.25410.87.95.255
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 →