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)10.93.0.0/18
network10.93.0.0/18
broadcast10.93.63.255
first host10.93.0.1
last host10.93.63.254
subnet mask255.255.192.0
wildcard0.0.63.255
addresses16,384
usable hosts16,382
classA
ipcalc 10.93.0.0/18
address00001010.01011101.00000000.00000000
subnet mask11111111.11111111.11000000.00000000
network00001010.01011101.00000000.00000000
broadcast00001010.01011101.00111111.11111111
green = network part, grey = host part
hex0x0a5d0000
decimal173867008
reverse dns0.0.93.10.in-addr.arpa
ipv4-mapped::ffff:a5d:0

/18 split into /25 · 128 subnets

close ×
#networkhost rangebroadcast
110.93.0.0/2510.93.0.1 – 10.93.0.12610.93.0.127
210.93.0.128/2510.93.0.129 – 10.93.0.25410.93.0.255
310.93.1.0/2510.93.1.1 – 10.93.1.12610.93.1.127
410.93.1.128/2510.93.1.129 – 10.93.1.25410.93.1.255
510.93.2.0/2510.93.2.1 – 10.93.2.12610.93.2.127
610.93.2.128/2510.93.2.129 – 10.93.2.25410.93.2.255
710.93.3.0/2510.93.3.1 – 10.93.3.12610.93.3.127
810.93.3.128/2510.93.3.129 – 10.93.3.25410.93.3.255
910.93.4.0/2510.93.4.1 – 10.93.4.12610.93.4.127
1010.93.4.128/2510.93.4.129 – 10.93.4.25410.93.4.255
1110.93.5.0/2510.93.5.1 – 10.93.5.12610.93.5.127
1210.93.5.128/2510.93.5.129 – 10.93.5.25410.93.5.255
1310.93.6.0/2510.93.6.1 – 10.93.6.12610.93.6.127
1410.93.6.128/2510.93.6.129 – 10.93.6.25410.93.6.255
1510.93.7.0/2510.93.7.1 – 10.93.7.12610.93.7.127
1610.93.7.128/2510.93.7.129 – 10.93.7.25410.93.7.255
1710.93.8.0/2510.93.8.1 – 10.93.8.12610.93.8.127
1810.93.8.128/2510.93.8.129 – 10.93.8.25410.93.8.255
1910.93.9.0/2510.93.9.1 – 10.93.9.12610.93.9.127
2010.93.9.128/2510.93.9.129 – 10.93.9.25410.93.9.255
2110.93.10.0/2510.93.10.1 – 10.93.10.12610.93.10.127
2210.93.10.128/2510.93.10.129 – 10.93.10.25410.93.10.255
2310.93.11.0/2510.93.11.1 – 10.93.11.12610.93.11.127
2410.93.11.128/2510.93.11.129 – 10.93.11.25410.93.11.255
2510.93.12.0/2510.93.12.1 – 10.93.12.12610.93.12.127
2610.93.12.128/2510.93.12.129 – 10.93.12.25410.93.12.255
2710.93.13.0/2510.93.13.1 – 10.93.13.12610.93.13.127
2810.93.13.128/2510.93.13.129 – 10.93.13.25410.93.13.255
2910.93.14.0/2510.93.14.1 – 10.93.14.12610.93.14.127
3010.93.14.128/2510.93.14.129 – 10.93.14.25410.93.14.255
3110.93.15.0/2510.93.15.1 – 10.93.15.12610.93.15.127
3210.93.15.128/2510.93.15.129 – 10.93.15.25410.93.15.255
3310.93.16.0/2510.93.16.1 – 10.93.16.12610.93.16.127
3410.93.16.128/2510.93.16.129 – 10.93.16.25410.93.16.255
3510.93.17.0/2510.93.17.1 – 10.93.17.12610.93.17.127
3610.93.17.128/2510.93.17.129 – 10.93.17.25410.93.17.255
3710.93.18.0/2510.93.18.1 – 10.93.18.12610.93.18.127
3810.93.18.128/2510.93.18.129 – 10.93.18.25410.93.18.255
3910.93.19.0/2510.93.19.1 – 10.93.19.12610.93.19.127
4010.93.19.128/2510.93.19.129 – 10.93.19.25410.93.19.255
4110.93.20.0/2510.93.20.1 – 10.93.20.12610.93.20.127
4210.93.20.128/2510.93.20.129 – 10.93.20.25410.93.20.255
4310.93.21.0/2510.93.21.1 – 10.93.21.12610.93.21.127
4410.93.21.128/2510.93.21.129 – 10.93.21.25410.93.21.255
4510.93.22.0/2510.93.22.1 – 10.93.22.12610.93.22.127
4610.93.22.128/2510.93.22.129 – 10.93.22.25410.93.22.255
4710.93.23.0/2510.93.23.1 – 10.93.23.12610.93.23.127
4810.93.23.128/2510.93.23.129 – 10.93.23.25410.93.23.255
4910.93.24.0/2510.93.24.1 – 10.93.24.12610.93.24.127
5010.93.24.128/2510.93.24.129 – 10.93.24.25410.93.24.255
5110.93.25.0/2510.93.25.1 – 10.93.25.12610.93.25.127
5210.93.25.128/2510.93.25.129 – 10.93.25.25410.93.25.255
5310.93.26.0/2510.93.26.1 – 10.93.26.12610.93.26.127
5410.93.26.128/2510.93.26.129 – 10.93.26.25410.93.26.255
5510.93.27.0/2510.93.27.1 – 10.93.27.12610.93.27.127
5610.93.27.128/2510.93.27.129 – 10.93.27.25410.93.27.255
5710.93.28.0/2510.93.28.1 – 10.93.28.12610.93.28.127
5810.93.28.128/2510.93.28.129 – 10.93.28.25410.93.28.255
5910.93.29.0/2510.93.29.1 – 10.93.29.12610.93.29.127
6010.93.29.128/2510.93.29.129 – 10.93.29.25410.93.29.255
6110.93.30.0/2510.93.30.1 – 10.93.30.12610.93.30.127
6210.93.30.128/2510.93.30.129 – 10.93.30.25410.93.30.255
6310.93.31.0/2510.93.31.1 – 10.93.31.12610.93.31.127
6410.93.31.128/2510.93.31.129 – 10.93.31.25410.93.31.255
6510.93.32.0/2510.93.32.1 – 10.93.32.12610.93.32.127
6610.93.32.128/2510.93.32.129 – 10.93.32.25410.93.32.255
6710.93.33.0/2510.93.33.1 – 10.93.33.12610.93.33.127
6810.93.33.128/2510.93.33.129 – 10.93.33.25410.93.33.255
6910.93.34.0/2510.93.34.1 – 10.93.34.12610.93.34.127
7010.93.34.128/2510.93.34.129 – 10.93.34.25410.93.34.255
7110.93.35.0/2510.93.35.1 – 10.93.35.12610.93.35.127
7210.93.35.128/2510.93.35.129 – 10.93.35.25410.93.35.255
7310.93.36.0/2510.93.36.1 – 10.93.36.12610.93.36.127
7410.93.36.128/2510.93.36.129 – 10.93.36.25410.93.36.255
7510.93.37.0/2510.93.37.1 – 10.93.37.12610.93.37.127
7610.93.37.128/2510.93.37.129 – 10.93.37.25410.93.37.255
7710.93.38.0/2510.93.38.1 – 10.93.38.12610.93.38.127
7810.93.38.128/2510.93.38.129 – 10.93.38.25410.93.38.255
7910.93.39.0/2510.93.39.1 – 10.93.39.12610.93.39.127
8010.93.39.128/2510.93.39.129 – 10.93.39.25410.93.39.255
8110.93.40.0/2510.93.40.1 – 10.93.40.12610.93.40.127
8210.93.40.128/2510.93.40.129 – 10.93.40.25410.93.40.255
8310.93.41.0/2510.93.41.1 – 10.93.41.12610.93.41.127
8410.93.41.128/2510.93.41.129 – 10.93.41.25410.93.41.255
8510.93.42.0/2510.93.42.1 – 10.93.42.12610.93.42.127
8610.93.42.128/2510.93.42.129 – 10.93.42.25410.93.42.255
8710.93.43.0/2510.93.43.1 – 10.93.43.12610.93.43.127
8810.93.43.128/2510.93.43.129 – 10.93.43.25410.93.43.255
8910.93.44.0/2510.93.44.1 – 10.93.44.12610.93.44.127
9010.93.44.128/2510.93.44.129 – 10.93.44.25410.93.44.255
9110.93.45.0/2510.93.45.1 – 10.93.45.12610.93.45.127
9210.93.45.128/2510.93.45.129 – 10.93.45.25410.93.45.255
9310.93.46.0/2510.93.46.1 – 10.93.46.12610.93.46.127
9410.93.46.128/2510.93.46.129 – 10.93.46.25410.93.46.255
9510.93.47.0/2510.93.47.1 – 10.93.47.12610.93.47.127
9610.93.47.128/2510.93.47.129 – 10.93.47.25410.93.47.255
9710.93.48.0/2510.93.48.1 – 10.93.48.12610.93.48.127
9810.93.48.128/2510.93.48.129 – 10.93.48.25410.93.48.255
9910.93.49.0/2510.93.49.1 – 10.93.49.12610.93.49.127
10010.93.49.128/2510.93.49.129 – 10.93.49.25410.93.49.255
10110.93.50.0/2510.93.50.1 – 10.93.50.12610.93.50.127
10210.93.50.128/2510.93.50.129 – 10.93.50.25410.93.50.255
10310.93.51.0/2510.93.51.1 – 10.93.51.12610.93.51.127
10410.93.51.128/2510.93.51.129 – 10.93.51.25410.93.51.255
10510.93.52.0/2510.93.52.1 – 10.93.52.12610.93.52.127
10610.93.52.128/2510.93.52.129 – 10.93.52.25410.93.52.255
10710.93.53.0/2510.93.53.1 – 10.93.53.12610.93.53.127
10810.93.53.128/2510.93.53.129 – 10.93.53.25410.93.53.255
10910.93.54.0/2510.93.54.1 – 10.93.54.12610.93.54.127
11010.93.54.128/2510.93.54.129 – 10.93.54.25410.93.54.255
11110.93.55.0/2510.93.55.1 – 10.93.55.12610.93.55.127
11210.93.55.128/2510.93.55.129 – 10.93.55.25410.93.55.255
11310.93.56.0/2510.93.56.1 – 10.93.56.12610.93.56.127
11410.93.56.128/2510.93.56.129 – 10.93.56.25410.93.56.255
11510.93.57.0/2510.93.57.1 – 10.93.57.12610.93.57.127
11610.93.57.128/2510.93.57.129 – 10.93.57.25410.93.57.255
11710.93.58.0/2510.93.58.1 – 10.93.58.12610.93.58.127
11810.93.58.128/2510.93.58.129 – 10.93.58.25410.93.58.255
11910.93.59.0/2510.93.59.1 – 10.93.59.12610.93.59.127
12010.93.59.128/2510.93.59.129 – 10.93.59.25410.93.59.255
12110.93.60.0/2510.93.60.1 – 10.93.60.12610.93.60.127
12210.93.60.128/2510.93.60.129 – 10.93.60.25410.93.60.255
12310.93.61.0/2510.93.61.1 – 10.93.61.12610.93.61.127
12410.93.61.128/2510.93.61.129 – 10.93.61.25410.93.61.255
12510.93.62.0/2510.93.62.1 – 10.93.62.12610.93.62.127
12610.93.62.128/2510.93.62.129 – 10.93.62.25410.93.62.255
12710.93.63.0/2510.93.63.1 – 10.93.63.12610.93.63.127
12810.93.63.128/2510.93.63.129 – 10.93.63.25410.93.63.255
01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /18
/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-
/18255.255.192.016,38416,3821
/19255.255.224.08,1928,1902 split →
/20255.255.240.04,0964,0944 split →
/21255.255.248.02,0482,0468 split →
/22255.255.252.01,0241,02216 split →
/23255.255.254.051251032 split →
/24255.255.255.025625464 split →
/25255.255.255.128128126128 split →
/26255.255.255.1926462256 split →
/27255.255.255.2243230512 split →
/28255.255.255.24016141,024 split →
/29255.255.255.248862,048 split →
/30255.255.255.252424,096 split →
/31255.255.255.254228,192 split →
/32255.255.255.2551116,384 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 →