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)10.7.32.0/19
network10.7.32.0/19
broadcast10.7.63.255
first host10.7.32.1
last host10.7.63.254
subnet mask255.255.224.0
wildcard0.0.31.255
addresses8,192
usable hosts8,190
classA
ipcalc 10.7.32.0/19
address00001010.00000111.00100000.00000000
subnet mask11111111.11111111.11100000.00000000
network00001010.00000111.00100000.00000000
broadcast00001010.00000111.00111111.11111111
green = network part, grey = host part
hex0x0a072000
decimal168239104
reverse dns0.32.7.10.in-addr.arpa
ipv4-mapped::ffff:a07:2000

/19 split into /26 · 128 subnets

close ×
#networkhost rangebroadcast
110.7.32.0/2610.7.32.1 – 10.7.32.6210.7.32.63
210.7.32.64/2610.7.32.65 – 10.7.32.12610.7.32.127
310.7.32.128/2610.7.32.129 – 10.7.32.19010.7.32.191
410.7.32.192/2610.7.32.193 – 10.7.32.25410.7.32.255
510.7.33.0/2610.7.33.1 – 10.7.33.6210.7.33.63
610.7.33.64/2610.7.33.65 – 10.7.33.12610.7.33.127
710.7.33.128/2610.7.33.129 – 10.7.33.19010.7.33.191
810.7.33.192/2610.7.33.193 – 10.7.33.25410.7.33.255
910.7.34.0/2610.7.34.1 – 10.7.34.6210.7.34.63
1010.7.34.64/2610.7.34.65 – 10.7.34.12610.7.34.127
1110.7.34.128/2610.7.34.129 – 10.7.34.19010.7.34.191
1210.7.34.192/2610.7.34.193 – 10.7.34.25410.7.34.255
1310.7.35.0/2610.7.35.1 – 10.7.35.6210.7.35.63
1410.7.35.64/2610.7.35.65 – 10.7.35.12610.7.35.127
1510.7.35.128/2610.7.35.129 – 10.7.35.19010.7.35.191
1610.7.35.192/2610.7.35.193 – 10.7.35.25410.7.35.255
1710.7.36.0/2610.7.36.1 – 10.7.36.6210.7.36.63
1810.7.36.64/2610.7.36.65 – 10.7.36.12610.7.36.127
1910.7.36.128/2610.7.36.129 – 10.7.36.19010.7.36.191
2010.7.36.192/2610.7.36.193 – 10.7.36.25410.7.36.255
2110.7.37.0/2610.7.37.1 – 10.7.37.6210.7.37.63
2210.7.37.64/2610.7.37.65 – 10.7.37.12610.7.37.127
2310.7.37.128/2610.7.37.129 – 10.7.37.19010.7.37.191
2410.7.37.192/2610.7.37.193 – 10.7.37.25410.7.37.255
2510.7.38.0/2610.7.38.1 – 10.7.38.6210.7.38.63
2610.7.38.64/2610.7.38.65 – 10.7.38.12610.7.38.127
2710.7.38.128/2610.7.38.129 – 10.7.38.19010.7.38.191
2810.7.38.192/2610.7.38.193 – 10.7.38.25410.7.38.255
2910.7.39.0/2610.7.39.1 – 10.7.39.6210.7.39.63
3010.7.39.64/2610.7.39.65 – 10.7.39.12610.7.39.127
3110.7.39.128/2610.7.39.129 – 10.7.39.19010.7.39.191
3210.7.39.192/2610.7.39.193 – 10.7.39.25410.7.39.255
3310.7.40.0/2610.7.40.1 – 10.7.40.6210.7.40.63
3410.7.40.64/2610.7.40.65 – 10.7.40.12610.7.40.127
3510.7.40.128/2610.7.40.129 – 10.7.40.19010.7.40.191
3610.7.40.192/2610.7.40.193 – 10.7.40.25410.7.40.255
3710.7.41.0/2610.7.41.1 – 10.7.41.6210.7.41.63
3810.7.41.64/2610.7.41.65 – 10.7.41.12610.7.41.127
3910.7.41.128/2610.7.41.129 – 10.7.41.19010.7.41.191
4010.7.41.192/2610.7.41.193 – 10.7.41.25410.7.41.255
4110.7.42.0/2610.7.42.1 – 10.7.42.6210.7.42.63
4210.7.42.64/2610.7.42.65 – 10.7.42.12610.7.42.127
4310.7.42.128/2610.7.42.129 – 10.7.42.19010.7.42.191
4410.7.42.192/2610.7.42.193 – 10.7.42.25410.7.42.255
4510.7.43.0/2610.7.43.1 – 10.7.43.6210.7.43.63
4610.7.43.64/2610.7.43.65 – 10.7.43.12610.7.43.127
4710.7.43.128/2610.7.43.129 – 10.7.43.19010.7.43.191
4810.7.43.192/2610.7.43.193 – 10.7.43.25410.7.43.255
4910.7.44.0/2610.7.44.1 – 10.7.44.6210.7.44.63
5010.7.44.64/2610.7.44.65 – 10.7.44.12610.7.44.127
5110.7.44.128/2610.7.44.129 – 10.7.44.19010.7.44.191
5210.7.44.192/2610.7.44.193 – 10.7.44.25410.7.44.255
5310.7.45.0/2610.7.45.1 – 10.7.45.6210.7.45.63
5410.7.45.64/2610.7.45.65 – 10.7.45.12610.7.45.127
5510.7.45.128/2610.7.45.129 – 10.7.45.19010.7.45.191
5610.7.45.192/2610.7.45.193 – 10.7.45.25410.7.45.255
5710.7.46.0/2610.7.46.1 – 10.7.46.6210.7.46.63
5810.7.46.64/2610.7.46.65 – 10.7.46.12610.7.46.127
5910.7.46.128/2610.7.46.129 – 10.7.46.19010.7.46.191
6010.7.46.192/2610.7.46.193 – 10.7.46.25410.7.46.255
6110.7.47.0/2610.7.47.1 – 10.7.47.6210.7.47.63
6210.7.47.64/2610.7.47.65 – 10.7.47.12610.7.47.127
6310.7.47.128/2610.7.47.129 – 10.7.47.19010.7.47.191
6410.7.47.192/2610.7.47.193 – 10.7.47.25410.7.47.255
6510.7.48.0/2610.7.48.1 – 10.7.48.6210.7.48.63
6610.7.48.64/2610.7.48.65 – 10.7.48.12610.7.48.127
6710.7.48.128/2610.7.48.129 – 10.7.48.19010.7.48.191
6810.7.48.192/2610.7.48.193 – 10.7.48.25410.7.48.255
6910.7.49.0/2610.7.49.1 – 10.7.49.6210.7.49.63
7010.7.49.64/2610.7.49.65 – 10.7.49.12610.7.49.127
7110.7.49.128/2610.7.49.129 – 10.7.49.19010.7.49.191
7210.7.49.192/2610.7.49.193 – 10.7.49.25410.7.49.255
7310.7.50.0/2610.7.50.1 – 10.7.50.6210.7.50.63
7410.7.50.64/2610.7.50.65 – 10.7.50.12610.7.50.127
7510.7.50.128/2610.7.50.129 – 10.7.50.19010.7.50.191
7610.7.50.192/2610.7.50.193 – 10.7.50.25410.7.50.255
7710.7.51.0/2610.7.51.1 – 10.7.51.6210.7.51.63
7810.7.51.64/2610.7.51.65 – 10.7.51.12610.7.51.127
7910.7.51.128/2610.7.51.129 – 10.7.51.19010.7.51.191
8010.7.51.192/2610.7.51.193 – 10.7.51.25410.7.51.255
8110.7.52.0/2610.7.52.1 – 10.7.52.6210.7.52.63
8210.7.52.64/2610.7.52.65 – 10.7.52.12610.7.52.127
8310.7.52.128/2610.7.52.129 – 10.7.52.19010.7.52.191
8410.7.52.192/2610.7.52.193 – 10.7.52.25410.7.52.255
8510.7.53.0/2610.7.53.1 – 10.7.53.6210.7.53.63
8610.7.53.64/2610.7.53.65 – 10.7.53.12610.7.53.127
8710.7.53.128/2610.7.53.129 – 10.7.53.19010.7.53.191
8810.7.53.192/2610.7.53.193 – 10.7.53.25410.7.53.255
8910.7.54.0/2610.7.54.1 – 10.7.54.6210.7.54.63
9010.7.54.64/2610.7.54.65 – 10.7.54.12610.7.54.127
9110.7.54.128/2610.7.54.129 – 10.7.54.19010.7.54.191
9210.7.54.192/2610.7.54.193 – 10.7.54.25410.7.54.255
9310.7.55.0/2610.7.55.1 – 10.7.55.6210.7.55.63
9410.7.55.64/2610.7.55.65 – 10.7.55.12610.7.55.127
9510.7.55.128/2610.7.55.129 – 10.7.55.19010.7.55.191
9610.7.55.192/2610.7.55.193 – 10.7.55.25410.7.55.255
9710.7.56.0/2610.7.56.1 – 10.7.56.6210.7.56.63
9810.7.56.64/2610.7.56.65 – 10.7.56.12610.7.56.127
9910.7.56.128/2610.7.56.129 – 10.7.56.19010.7.56.191
10010.7.56.192/2610.7.56.193 – 10.7.56.25410.7.56.255
10110.7.57.0/2610.7.57.1 – 10.7.57.6210.7.57.63
10210.7.57.64/2610.7.57.65 – 10.7.57.12610.7.57.127
10310.7.57.128/2610.7.57.129 – 10.7.57.19010.7.57.191
10410.7.57.192/2610.7.57.193 – 10.7.57.25410.7.57.255
10510.7.58.0/2610.7.58.1 – 10.7.58.6210.7.58.63
10610.7.58.64/2610.7.58.65 – 10.7.58.12610.7.58.127
10710.7.58.128/2610.7.58.129 – 10.7.58.19010.7.58.191
10810.7.58.192/2610.7.58.193 – 10.7.58.25410.7.58.255
10910.7.59.0/2610.7.59.1 – 10.7.59.6210.7.59.63
11010.7.59.64/2610.7.59.65 – 10.7.59.12610.7.59.127
11110.7.59.128/2610.7.59.129 – 10.7.59.19010.7.59.191
11210.7.59.192/2610.7.59.193 – 10.7.59.25410.7.59.255
11310.7.60.0/2610.7.60.1 – 10.7.60.6210.7.60.63
11410.7.60.64/2610.7.60.65 – 10.7.60.12610.7.60.127
11510.7.60.128/2610.7.60.129 – 10.7.60.19010.7.60.191
11610.7.60.192/2610.7.60.193 – 10.7.60.25410.7.60.255
11710.7.61.0/2610.7.61.1 – 10.7.61.6210.7.61.63
11810.7.61.64/2610.7.61.65 – 10.7.61.12610.7.61.127
11910.7.61.128/2610.7.61.129 – 10.7.61.19010.7.61.191
12010.7.61.192/2610.7.61.193 – 10.7.61.25410.7.61.255
12110.7.62.0/2610.7.62.1 – 10.7.62.6210.7.62.63
12210.7.62.64/2610.7.62.65 – 10.7.62.12610.7.62.127
12310.7.62.128/2610.7.62.129 – 10.7.62.19010.7.62.191
12410.7.62.192/2610.7.62.193 – 10.7.62.25410.7.62.255
12510.7.63.0/2610.7.63.1 – 10.7.63.6210.7.63.63
12610.7.63.64/2610.7.63.65 – 10.7.63.12610.7.63.127
12710.7.63.128/2610.7.63.129 – 10.7.63.19010.7.63.191
12810.7.63.192/2610.7.63.193 – 10.7.63.25410.7.63.255
01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /19
/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-
/19255.255.224.08,1928,1901
/20255.255.240.04,0964,0942 split →
/21255.255.248.02,0482,0464 split →
/22255.255.252.01,0241,0228 split →
/23255.255.254.051251016 split →
/24255.255.255.025625432 split →
/25255.255.255.12812812664 split →
/26255.255.255.1926462128 split →
/27255.255.255.2243230256 split →
/28255.255.255.2401614512 split →
/29255.255.255.248861,024 split →
/30255.255.255.252422,048 split →
/31255.255.255.254224,096 split →
/32255.255.255.255118,192 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 →