ip
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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)10.83.92.0/22
network10.83.92.0/22
broadcast10.83.95.255
first host10.83.92.1
last host10.83.95.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.83.92.0/22
address00001010.01010011.01011100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01010011.01011100.00000000
broadcast00001010.01010011.01011111.11111111
green = network part, grey = host part
hex0x0a535c00
decimal173235200
reverse dns0.92.83.10.in-addr.arpa
ipv4-mapped::ffff:a53:5c00

/22 split into /26 · 16 subnets

close ×
#networkhost rangebroadcast
110.83.92.0/2610.83.92.1 – 10.83.92.6210.83.92.63
210.83.92.64/2610.83.92.65 – 10.83.92.12610.83.92.127
310.83.92.128/2610.83.92.129 – 10.83.92.19010.83.92.191
410.83.92.192/2610.83.92.193 – 10.83.92.25410.83.92.255
510.83.93.0/2610.83.93.1 – 10.83.93.6210.83.93.63
610.83.93.64/2610.83.93.65 – 10.83.93.12610.83.93.127
710.83.93.128/2610.83.93.129 – 10.83.93.19010.83.93.191
810.83.93.192/2610.83.93.193 – 10.83.93.25410.83.93.255
910.83.94.0/2610.83.94.1 – 10.83.94.6210.83.94.63
1010.83.94.64/2610.83.94.65 – 10.83.94.12610.83.94.127
1110.83.94.128/2610.83.94.129 – 10.83.94.19010.83.94.191
1210.83.94.192/2610.83.94.193 – 10.83.94.25410.83.94.255
1310.83.95.0/2610.83.95.1 – 10.83.95.6210.83.95.63
1410.83.95.64/2610.83.95.65 – 10.83.95.12610.83.95.127
1510.83.95.128/2610.83.95.129 – 10.83.95.19010.83.95.191
1610.83.95.192/2610.83.95.193 – 10.83.95.25410.83.95.255
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 →