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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)10.88.0.0/14
network10.88.0.0/14
broadcast10.91.255.255
first host10.88.0.1
last host10.91.255.254
subnet mask255.252.0.0
wildcard0.3.255.255
addresses262,144
usable hosts262,142
classA
ipcalc 10.88.0.0/14
address00001010.01011000.00000000.00000000
subnet mask11111111.11111100.00000000.00000000
network00001010.01011000.00000000.00000000
broadcast00001010.01011011.11111111.11111111
green = network part, grey = host part
hex0x0a580000
decimal173539328
reverse dns0.0.88.10.in-addr.arpa
ipv4-mapped::ffff:a58:0

/14 split into /20 · 64 subnets

close ×
#networkhost rangebroadcast
110.88.0.0/2010.88.0.1 – 10.88.15.25410.88.15.255
210.88.16.0/2010.88.16.1 – 10.88.31.25410.88.31.255
310.88.32.0/2010.88.32.1 – 10.88.47.25410.88.47.255
410.88.48.0/2010.88.48.1 – 10.88.63.25410.88.63.255
510.88.64.0/2010.88.64.1 – 10.88.79.25410.88.79.255
610.88.80.0/2010.88.80.1 – 10.88.95.25410.88.95.255
710.88.96.0/2010.88.96.1 – 10.88.111.25410.88.111.255
810.88.112.0/2010.88.112.1 – 10.88.127.25410.88.127.255
910.88.128.0/2010.88.128.1 – 10.88.143.25410.88.143.255
1010.88.144.0/2010.88.144.1 – 10.88.159.25410.88.159.255
1110.88.160.0/2010.88.160.1 – 10.88.175.25410.88.175.255
1210.88.176.0/2010.88.176.1 – 10.88.191.25410.88.191.255
1310.88.192.0/2010.88.192.1 – 10.88.207.25410.88.207.255
1410.88.208.0/2010.88.208.1 – 10.88.223.25410.88.223.255
1510.88.224.0/2010.88.224.1 – 10.88.239.25410.88.239.255
1610.88.240.0/2010.88.240.1 – 10.88.255.25410.88.255.255
1710.89.0.0/2010.89.0.1 – 10.89.15.25410.89.15.255
1810.89.16.0/2010.89.16.1 – 10.89.31.25410.89.31.255
1910.89.32.0/2010.89.32.1 – 10.89.47.25410.89.47.255
2010.89.48.0/2010.89.48.1 – 10.89.63.25410.89.63.255
2110.89.64.0/2010.89.64.1 – 10.89.79.25410.89.79.255
2210.89.80.0/2010.89.80.1 – 10.89.95.25410.89.95.255
2310.89.96.0/2010.89.96.1 – 10.89.111.25410.89.111.255
2410.89.112.0/2010.89.112.1 – 10.89.127.25410.89.127.255
2510.89.128.0/2010.89.128.1 – 10.89.143.25410.89.143.255
2610.89.144.0/2010.89.144.1 – 10.89.159.25410.89.159.255
2710.89.160.0/2010.89.160.1 – 10.89.175.25410.89.175.255
2810.89.176.0/2010.89.176.1 – 10.89.191.25410.89.191.255
2910.89.192.0/2010.89.192.1 – 10.89.207.25410.89.207.255
3010.89.208.0/2010.89.208.1 – 10.89.223.25410.89.223.255
3110.89.224.0/2010.89.224.1 – 10.89.239.25410.89.239.255
3210.89.240.0/2010.89.240.1 – 10.89.255.25410.89.255.255
3310.90.0.0/2010.90.0.1 – 10.90.15.25410.90.15.255
3410.90.16.0/2010.90.16.1 – 10.90.31.25410.90.31.255
3510.90.32.0/2010.90.32.1 – 10.90.47.25410.90.47.255
3610.90.48.0/2010.90.48.1 – 10.90.63.25410.90.63.255
3710.90.64.0/2010.90.64.1 – 10.90.79.25410.90.79.255
3810.90.80.0/2010.90.80.1 – 10.90.95.25410.90.95.255
3910.90.96.0/2010.90.96.1 – 10.90.111.25410.90.111.255
4010.90.112.0/2010.90.112.1 – 10.90.127.25410.90.127.255
4110.90.128.0/2010.90.128.1 – 10.90.143.25410.90.143.255
4210.90.144.0/2010.90.144.1 – 10.90.159.25410.90.159.255
4310.90.160.0/2010.90.160.1 – 10.90.175.25410.90.175.255
4410.90.176.0/2010.90.176.1 – 10.90.191.25410.90.191.255
4510.90.192.0/2010.90.192.1 – 10.90.207.25410.90.207.255
4610.90.208.0/2010.90.208.1 – 10.90.223.25410.90.223.255
4710.90.224.0/2010.90.224.1 – 10.90.239.25410.90.239.255
4810.90.240.0/2010.90.240.1 – 10.90.255.25410.90.255.255
4910.91.0.0/2010.91.0.1 – 10.91.15.25410.91.15.255
5010.91.16.0/2010.91.16.1 – 10.91.31.25410.91.31.255
5110.91.32.0/2010.91.32.1 – 10.91.47.25410.91.47.255
5210.91.48.0/2010.91.48.1 – 10.91.63.25410.91.63.255
5310.91.64.0/2010.91.64.1 – 10.91.79.25410.91.79.255
5410.91.80.0/2010.91.80.1 – 10.91.95.25410.91.95.255
5510.91.96.0/2010.91.96.1 – 10.91.111.25410.91.111.255
5610.91.112.0/2010.91.112.1 – 10.91.127.25410.91.127.255
5710.91.128.0/2010.91.128.1 – 10.91.143.25410.91.143.255
5810.91.144.0/2010.91.144.1 – 10.91.159.25410.91.159.255
5910.91.160.0/2010.91.160.1 – 10.91.175.25410.91.175.255
6010.91.176.0/2010.91.176.1 – 10.91.191.25410.91.191.255
6110.91.192.0/2010.91.192.1 – 10.91.207.25410.91.207.255
6210.91.208.0/2010.91.208.1 – 10.91.223.25410.91.223.255
6310.91.224.0/2010.91.224.1 – 10.91.239.25410.91.239.255
6410.91.240.0/2010.91.240.1 – 10.91.255.25410.91.255.255
01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefixsubnet maskaddresseshostsin your /14
/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-
/14255.252.0.0262,144262,1421
/15255.254.0.0131,072131,0702 split →
/16255.255.0.065,53665,5344 split →
/17255.255.128.032,76832,7668 split →
/18255.255.192.016,38416,38216 split →
/19255.255.224.08,1928,19032 split →
/20255.255.240.04,0964,09464 split →
/21255.255.248.02,0482,046128 split →
/22255.255.252.01,0241,022256 split →
/23255.255.254.0512510512 split →
/24255.255.255.02562541,024 split →
/25255.255.255.1281281262,048 split →
/26255.255.255.19264624,096 split →
/27255.255.255.22432308,192 split →
/28255.255.255.240161416,384 split →
/29255.255.255.2488632,768 split →
/30255.255.255.2524265,536 split →
/31255.255.255.25422131,072 split →
/32255.255.255.25511262,144 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 →