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)10.87.96.0/22
network10.87.96.0/22
broadcast10.87.99.255
first host10.87.96.1
last host10.87.99.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.87.96.0/22
address00001010.01010111.01100000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01010111.01100000.00000000
broadcast00001010.01010111.01100011.11111111
green = network part, grey = host part
hex0x0a576000
decimal173498368
reverse dns0.96.87.10.in-addr.arpa
ipv4-mapped::ffff:a57:6000

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.87.96.0/2910.87.96.1 – 10.87.96.610.87.96.7
210.87.96.8/2910.87.96.9 – 10.87.96.1410.87.96.15
310.87.96.16/2910.87.96.17 – 10.87.96.2210.87.96.23
410.87.96.24/2910.87.96.25 – 10.87.96.3010.87.96.31
510.87.96.32/2910.87.96.33 – 10.87.96.3810.87.96.39
610.87.96.40/2910.87.96.41 – 10.87.96.4610.87.96.47
710.87.96.48/2910.87.96.49 – 10.87.96.5410.87.96.55
810.87.96.56/2910.87.96.57 – 10.87.96.6210.87.96.63
910.87.96.64/2910.87.96.65 – 10.87.96.7010.87.96.71
1010.87.96.72/2910.87.96.73 – 10.87.96.7810.87.96.79
1110.87.96.80/2910.87.96.81 – 10.87.96.8610.87.96.87
1210.87.96.88/2910.87.96.89 – 10.87.96.9410.87.96.95
1310.87.96.96/2910.87.96.97 – 10.87.96.10210.87.96.103
1410.87.96.104/2910.87.96.105 – 10.87.96.11010.87.96.111
1510.87.96.112/2910.87.96.113 – 10.87.96.11810.87.96.119
1610.87.96.120/2910.87.96.121 – 10.87.96.12610.87.96.127
1710.87.96.128/2910.87.96.129 – 10.87.96.13410.87.96.135
1810.87.96.136/2910.87.96.137 – 10.87.96.14210.87.96.143
1910.87.96.144/2910.87.96.145 – 10.87.96.15010.87.96.151
2010.87.96.152/2910.87.96.153 – 10.87.96.15810.87.96.159
2110.87.96.160/2910.87.96.161 – 10.87.96.16610.87.96.167
2210.87.96.168/2910.87.96.169 – 10.87.96.17410.87.96.175
2310.87.96.176/2910.87.96.177 – 10.87.96.18210.87.96.183
2410.87.96.184/2910.87.96.185 – 10.87.96.19010.87.96.191
2510.87.96.192/2910.87.96.193 – 10.87.96.19810.87.96.199
2610.87.96.200/2910.87.96.201 – 10.87.96.20610.87.96.207
2710.87.96.208/2910.87.96.209 – 10.87.96.21410.87.96.215
2810.87.96.216/2910.87.96.217 – 10.87.96.22210.87.96.223
2910.87.96.224/2910.87.96.225 – 10.87.96.23010.87.96.231
3010.87.96.232/2910.87.96.233 – 10.87.96.23810.87.96.239
3110.87.96.240/2910.87.96.241 – 10.87.96.24610.87.96.247
3210.87.96.248/2910.87.96.249 – 10.87.96.25410.87.96.255
3310.87.97.0/2910.87.97.1 – 10.87.97.610.87.97.7
3410.87.97.8/2910.87.97.9 – 10.87.97.1410.87.97.15
3510.87.97.16/2910.87.97.17 – 10.87.97.2210.87.97.23
3610.87.97.24/2910.87.97.25 – 10.87.97.3010.87.97.31
3710.87.97.32/2910.87.97.33 – 10.87.97.3810.87.97.39
3810.87.97.40/2910.87.97.41 – 10.87.97.4610.87.97.47
3910.87.97.48/2910.87.97.49 – 10.87.97.5410.87.97.55
4010.87.97.56/2910.87.97.57 – 10.87.97.6210.87.97.63
4110.87.97.64/2910.87.97.65 – 10.87.97.7010.87.97.71
4210.87.97.72/2910.87.97.73 – 10.87.97.7810.87.97.79
4310.87.97.80/2910.87.97.81 – 10.87.97.8610.87.97.87
4410.87.97.88/2910.87.97.89 – 10.87.97.9410.87.97.95
4510.87.97.96/2910.87.97.97 – 10.87.97.10210.87.97.103
4610.87.97.104/2910.87.97.105 – 10.87.97.11010.87.97.111
4710.87.97.112/2910.87.97.113 – 10.87.97.11810.87.97.119
4810.87.97.120/2910.87.97.121 – 10.87.97.12610.87.97.127
4910.87.97.128/2910.87.97.129 – 10.87.97.13410.87.97.135
5010.87.97.136/2910.87.97.137 – 10.87.97.14210.87.97.143
5110.87.97.144/2910.87.97.145 – 10.87.97.15010.87.97.151
5210.87.97.152/2910.87.97.153 – 10.87.97.15810.87.97.159
5310.87.97.160/2910.87.97.161 – 10.87.97.16610.87.97.167
5410.87.97.168/2910.87.97.169 – 10.87.97.17410.87.97.175
5510.87.97.176/2910.87.97.177 – 10.87.97.18210.87.97.183
5610.87.97.184/2910.87.97.185 – 10.87.97.19010.87.97.191
5710.87.97.192/2910.87.97.193 – 10.87.97.19810.87.97.199
5810.87.97.200/2910.87.97.201 – 10.87.97.20610.87.97.207
5910.87.97.208/2910.87.97.209 – 10.87.97.21410.87.97.215
6010.87.97.216/2910.87.97.217 – 10.87.97.22210.87.97.223
6110.87.97.224/2910.87.97.225 – 10.87.97.23010.87.97.231
6210.87.97.232/2910.87.97.233 – 10.87.97.23810.87.97.239
6310.87.97.240/2910.87.97.241 – 10.87.97.24610.87.97.247
6410.87.97.248/2910.87.97.249 – 10.87.97.25410.87.97.255
6510.87.98.0/2910.87.98.1 – 10.87.98.610.87.98.7
6610.87.98.8/2910.87.98.9 – 10.87.98.1410.87.98.15
6710.87.98.16/2910.87.98.17 – 10.87.98.2210.87.98.23
6810.87.98.24/2910.87.98.25 – 10.87.98.3010.87.98.31
6910.87.98.32/2910.87.98.33 – 10.87.98.3810.87.98.39
7010.87.98.40/2910.87.98.41 – 10.87.98.4610.87.98.47
7110.87.98.48/2910.87.98.49 – 10.87.98.5410.87.98.55
7210.87.98.56/2910.87.98.57 – 10.87.98.6210.87.98.63
7310.87.98.64/2910.87.98.65 – 10.87.98.7010.87.98.71
7410.87.98.72/2910.87.98.73 – 10.87.98.7810.87.98.79
7510.87.98.80/2910.87.98.81 – 10.87.98.8610.87.98.87
7610.87.98.88/2910.87.98.89 – 10.87.98.9410.87.98.95
7710.87.98.96/2910.87.98.97 – 10.87.98.10210.87.98.103
7810.87.98.104/2910.87.98.105 – 10.87.98.11010.87.98.111
7910.87.98.112/2910.87.98.113 – 10.87.98.11810.87.98.119
8010.87.98.120/2910.87.98.121 – 10.87.98.12610.87.98.127
8110.87.98.128/2910.87.98.129 – 10.87.98.13410.87.98.135
8210.87.98.136/2910.87.98.137 – 10.87.98.14210.87.98.143
8310.87.98.144/2910.87.98.145 – 10.87.98.15010.87.98.151
8410.87.98.152/2910.87.98.153 – 10.87.98.15810.87.98.159
8510.87.98.160/2910.87.98.161 – 10.87.98.16610.87.98.167
8610.87.98.168/2910.87.98.169 – 10.87.98.17410.87.98.175
8710.87.98.176/2910.87.98.177 – 10.87.98.18210.87.98.183
8810.87.98.184/2910.87.98.185 – 10.87.98.19010.87.98.191
8910.87.98.192/2910.87.98.193 – 10.87.98.19810.87.98.199
9010.87.98.200/2910.87.98.201 – 10.87.98.20610.87.98.207
9110.87.98.208/2910.87.98.209 – 10.87.98.21410.87.98.215
9210.87.98.216/2910.87.98.217 – 10.87.98.22210.87.98.223
9310.87.98.224/2910.87.98.225 – 10.87.98.23010.87.98.231
9410.87.98.232/2910.87.98.233 – 10.87.98.23810.87.98.239
9510.87.98.240/2910.87.98.241 – 10.87.98.24610.87.98.247
9610.87.98.248/2910.87.98.249 – 10.87.98.25410.87.98.255
9710.87.99.0/2910.87.99.1 – 10.87.99.610.87.99.7
9810.87.99.8/2910.87.99.9 – 10.87.99.1410.87.99.15
9910.87.99.16/2910.87.99.17 – 10.87.99.2210.87.99.23
10010.87.99.24/2910.87.99.25 – 10.87.99.3010.87.99.31
10110.87.99.32/2910.87.99.33 – 10.87.99.3810.87.99.39
10210.87.99.40/2910.87.99.41 – 10.87.99.4610.87.99.47
10310.87.99.48/2910.87.99.49 – 10.87.99.5410.87.99.55
10410.87.99.56/2910.87.99.57 – 10.87.99.6210.87.99.63
10510.87.99.64/2910.87.99.65 – 10.87.99.7010.87.99.71
10610.87.99.72/2910.87.99.73 – 10.87.99.7810.87.99.79
10710.87.99.80/2910.87.99.81 – 10.87.99.8610.87.99.87
10810.87.99.88/2910.87.99.89 – 10.87.99.9410.87.99.95
10910.87.99.96/2910.87.99.97 – 10.87.99.10210.87.99.103
11010.87.99.104/2910.87.99.105 – 10.87.99.11010.87.99.111
11110.87.99.112/2910.87.99.113 – 10.87.99.11810.87.99.119
11210.87.99.120/2910.87.99.121 – 10.87.99.12610.87.99.127
11310.87.99.128/2910.87.99.129 – 10.87.99.13410.87.99.135
11410.87.99.136/2910.87.99.137 – 10.87.99.14210.87.99.143
11510.87.99.144/2910.87.99.145 – 10.87.99.15010.87.99.151
11610.87.99.152/2910.87.99.153 – 10.87.99.15810.87.99.159
11710.87.99.160/2910.87.99.161 – 10.87.99.16610.87.99.167
11810.87.99.168/2910.87.99.169 – 10.87.99.17410.87.99.175
11910.87.99.176/2910.87.99.177 – 10.87.99.18210.87.99.183
12010.87.99.184/2910.87.99.185 – 10.87.99.19010.87.99.191
12110.87.99.192/2910.87.99.193 – 10.87.99.19810.87.99.199
12210.87.99.200/2910.87.99.201 – 10.87.99.20610.87.99.207
12310.87.99.208/2910.87.99.209 – 10.87.99.21410.87.99.215
12410.87.99.216/2910.87.99.217 – 10.87.99.22210.87.99.223
12510.87.99.224/2910.87.99.225 – 10.87.99.23010.87.99.231
12610.87.99.232/2910.87.99.233 – 10.87.99.23810.87.99.239
12710.87.99.240/2910.87.99.241 – 10.87.99.24610.87.99.247
12810.87.99.248/2910.87.99.249 – 10.87.99.25410.87.99.255
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 →