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)10.22.64.0/19
network10.22.64.0/19
broadcast10.22.95.255
first host10.22.64.1
last host10.22.95.254
subnet mask255.255.224.0
wildcard0.0.31.255
addresses8,192
usable hosts8,190
classA
ipcalc 10.22.64.0/19
address00001010.00010110.01000000.00000000
subnet mask11111111.11111111.11100000.00000000
network00001010.00010110.01000000.00000000
broadcast00001010.00010110.01011111.11111111
green = network part, grey = host part
hex0x0a164000
decimal169230336
reverse dns0.64.22.10.in-addr.arpa
ipv4-mapped::ffff:a16:4000

/19 split into /26 · 128 subnets

close ×
#networkhost rangebroadcast
110.22.64.0/2610.22.64.1 – 10.22.64.6210.22.64.63
210.22.64.64/2610.22.64.65 – 10.22.64.12610.22.64.127
310.22.64.128/2610.22.64.129 – 10.22.64.19010.22.64.191
410.22.64.192/2610.22.64.193 – 10.22.64.25410.22.64.255
510.22.65.0/2610.22.65.1 – 10.22.65.6210.22.65.63
610.22.65.64/2610.22.65.65 – 10.22.65.12610.22.65.127
710.22.65.128/2610.22.65.129 – 10.22.65.19010.22.65.191
810.22.65.192/2610.22.65.193 – 10.22.65.25410.22.65.255
910.22.66.0/2610.22.66.1 – 10.22.66.6210.22.66.63
1010.22.66.64/2610.22.66.65 – 10.22.66.12610.22.66.127
1110.22.66.128/2610.22.66.129 – 10.22.66.19010.22.66.191
1210.22.66.192/2610.22.66.193 – 10.22.66.25410.22.66.255
1310.22.67.0/2610.22.67.1 – 10.22.67.6210.22.67.63
1410.22.67.64/2610.22.67.65 – 10.22.67.12610.22.67.127
1510.22.67.128/2610.22.67.129 – 10.22.67.19010.22.67.191
1610.22.67.192/2610.22.67.193 – 10.22.67.25410.22.67.255
1710.22.68.0/2610.22.68.1 – 10.22.68.6210.22.68.63
1810.22.68.64/2610.22.68.65 – 10.22.68.12610.22.68.127
1910.22.68.128/2610.22.68.129 – 10.22.68.19010.22.68.191
2010.22.68.192/2610.22.68.193 – 10.22.68.25410.22.68.255
2110.22.69.0/2610.22.69.1 – 10.22.69.6210.22.69.63
2210.22.69.64/2610.22.69.65 – 10.22.69.12610.22.69.127
2310.22.69.128/2610.22.69.129 – 10.22.69.19010.22.69.191
2410.22.69.192/2610.22.69.193 – 10.22.69.25410.22.69.255
2510.22.70.0/2610.22.70.1 – 10.22.70.6210.22.70.63
2610.22.70.64/2610.22.70.65 – 10.22.70.12610.22.70.127
2710.22.70.128/2610.22.70.129 – 10.22.70.19010.22.70.191
2810.22.70.192/2610.22.70.193 – 10.22.70.25410.22.70.255
2910.22.71.0/2610.22.71.1 – 10.22.71.6210.22.71.63
3010.22.71.64/2610.22.71.65 – 10.22.71.12610.22.71.127
3110.22.71.128/2610.22.71.129 – 10.22.71.19010.22.71.191
3210.22.71.192/2610.22.71.193 – 10.22.71.25410.22.71.255
3310.22.72.0/2610.22.72.1 – 10.22.72.6210.22.72.63
3410.22.72.64/2610.22.72.65 – 10.22.72.12610.22.72.127
3510.22.72.128/2610.22.72.129 – 10.22.72.19010.22.72.191
3610.22.72.192/2610.22.72.193 – 10.22.72.25410.22.72.255
3710.22.73.0/2610.22.73.1 – 10.22.73.6210.22.73.63
3810.22.73.64/2610.22.73.65 – 10.22.73.12610.22.73.127
3910.22.73.128/2610.22.73.129 – 10.22.73.19010.22.73.191
4010.22.73.192/2610.22.73.193 – 10.22.73.25410.22.73.255
4110.22.74.0/2610.22.74.1 – 10.22.74.6210.22.74.63
4210.22.74.64/2610.22.74.65 – 10.22.74.12610.22.74.127
4310.22.74.128/2610.22.74.129 – 10.22.74.19010.22.74.191
4410.22.74.192/2610.22.74.193 – 10.22.74.25410.22.74.255
4510.22.75.0/2610.22.75.1 – 10.22.75.6210.22.75.63
4610.22.75.64/2610.22.75.65 – 10.22.75.12610.22.75.127
4710.22.75.128/2610.22.75.129 – 10.22.75.19010.22.75.191
4810.22.75.192/2610.22.75.193 – 10.22.75.25410.22.75.255
4910.22.76.0/2610.22.76.1 – 10.22.76.6210.22.76.63
5010.22.76.64/2610.22.76.65 – 10.22.76.12610.22.76.127
5110.22.76.128/2610.22.76.129 – 10.22.76.19010.22.76.191
5210.22.76.192/2610.22.76.193 – 10.22.76.25410.22.76.255
5310.22.77.0/2610.22.77.1 – 10.22.77.6210.22.77.63
5410.22.77.64/2610.22.77.65 – 10.22.77.12610.22.77.127
5510.22.77.128/2610.22.77.129 – 10.22.77.19010.22.77.191
5610.22.77.192/2610.22.77.193 – 10.22.77.25410.22.77.255
5710.22.78.0/2610.22.78.1 – 10.22.78.6210.22.78.63
5810.22.78.64/2610.22.78.65 – 10.22.78.12610.22.78.127
5910.22.78.128/2610.22.78.129 – 10.22.78.19010.22.78.191
6010.22.78.192/2610.22.78.193 – 10.22.78.25410.22.78.255
6110.22.79.0/2610.22.79.1 – 10.22.79.6210.22.79.63
6210.22.79.64/2610.22.79.65 – 10.22.79.12610.22.79.127
6310.22.79.128/2610.22.79.129 – 10.22.79.19010.22.79.191
6410.22.79.192/2610.22.79.193 – 10.22.79.25410.22.79.255
6510.22.80.0/2610.22.80.1 – 10.22.80.6210.22.80.63
6610.22.80.64/2610.22.80.65 – 10.22.80.12610.22.80.127
6710.22.80.128/2610.22.80.129 – 10.22.80.19010.22.80.191
6810.22.80.192/2610.22.80.193 – 10.22.80.25410.22.80.255
6910.22.81.0/2610.22.81.1 – 10.22.81.6210.22.81.63
7010.22.81.64/2610.22.81.65 – 10.22.81.12610.22.81.127
7110.22.81.128/2610.22.81.129 – 10.22.81.19010.22.81.191
7210.22.81.192/2610.22.81.193 – 10.22.81.25410.22.81.255
7310.22.82.0/2610.22.82.1 – 10.22.82.6210.22.82.63
7410.22.82.64/2610.22.82.65 – 10.22.82.12610.22.82.127
7510.22.82.128/2610.22.82.129 – 10.22.82.19010.22.82.191
7610.22.82.192/2610.22.82.193 – 10.22.82.25410.22.82.255
7710.22.83.0/2610.22.83.1 – 10.22.83.6210.22.83.63
7810.22.83.64/2610.22.83.65 – 10.22.83.12610.22.83.127
7910.22.83.128/2610.22.83.129 – 10.22.83.19010.22.83.191
8010.22.83.192/2610.22.83.193 – 10.22.83.25410.22.83.255
8110.22.84.0/2610.22.84.1 – 10.22.84.6210.22.84.63
8210.22.84.64/2610.22.84.65 – 10.22.84.12610.22.84.127
8310.22.84.128/2610.22.84.129 – 10.22.84.19010.22.84.191
8410.22.84.192/2610.22.84.193 – 10.22.84.25410.22.84.255
8510.22.85.0/2610.22.85.1 – 10.22.85.6210.22.85.63
8610.22.85.64/2610.22.85.65 – 10.22.85.12610.22.85.127
8710.22.85.128/2610.22.85.129 – 10.22.85.19010.22.85.191
8810.22.85.192/2610.22.85.193 – 10.22.85.25410.22.85.255
8910.22.86.0/2610.22.86.1 – 10.22.86.6210.22.86.63
9010.22.86.64/2610.22.86.65 – 10.22.86.12610.22.86.127
9110.22.86.128/2610.22.86.129 – 10.22.86.19010.22.86.191
9210.22.86.192/2610.22.86.193 – 10.22.86.25410.22.86.255
9310.22.87.0/2610.22.87.1 – 10.22.87.6210.22.87.63
9410.22.87.64/2610.22.87.65 – 10.22.87.12610.22.87.127
9510.22.87.128/2610.22.87.129 – 10.22.87.19010.22.87.191
9610.22.87.192/2610.22.87.193 – 10.22.87.25410.22.87.255
9710.22.88.0/2610.22.88.1 – 10.22.88.6210.22.88.63
9810.22.88.64/2610.22.88.65 – 10.22.88.12610.22.88.127
9910.22.88.128/2610.22.88.129 – 10.22.88.19010.22.88.191
10010.22.88.192/2610.22.88.193 – 10.22.88.25410.22.88.255
10110.22.89.0/2610.22.89.1 – 10.22.89.6210.22.89.63
10210.22.89.64/2610.22.89.65 – 10.22.89.12610.22.89.127
10310.22.89.128/2610.22.89.129 – 10.22.89.19010.22.89.191
10410.22.89.192/2610.22.89.193 – 10.22.89.25410.22.89.255
10510.22.90.0/2610.22.90.1 – 10.22.90.6210.22.90.63
10610.22.90.64/2610.22.90.65 – 10.22.90.12610.22.90.127
10710.22.90.128/2610.22.90.129 – 10.22.90.19010.22.90.191
10810.22.90.192/2610.22.90.193 – 10.22.90.25410.22.90.255
10910.22.91.0/2610.22.91.1 – 10.22.91.6210.22.91.63
11010.22.91.64/2610.22.91.65 – 10.22.91.12610.22.91.127
11110.22.91.128/2610.22.91.129 – 10.22.91.19010.22.91.191
11210.22.91.192/2610.22.91.193 – 10.22.91.25410.22.91.255
11310.22.92.0/2610.22.92.1 – 10.22.92.6210.22.92.63
11410.22.92.64/2610.22.92.65 – 10.22.92.12610.22.92.127
11510.22.92.128/2610.22.92.129 – 10.22.92.19010.22.92.191
11610.22.92.192/2610.22.92.193 – 10.22.92.25410.22.92.255
11710.22.93.0/2610.22.93.1 – 10.22.93.6210.22.93.63
11810.22.93.64/2610.22.93.65 – 10.22.93.12610.22.93.127
11910.22.93.128/2610.22.93.129 – 10.22.93.19010.22.93.191
12010.22.93.192/2610.22.93.193 – 10.22.93.25410.22.93.255
12110.22.94.0/2610.22.94.1 – 10.22.94.6210.22.94.63
12210.22.94.64/2610.22.94.65 – 10.22.94.12610.22.94.127
12310.22.94.128/2610.22.94.129 – 10.22.94.19010.22.94.191
12410.22.94.192/2610.22.94.193 – 10.22.94.25410.22.94.255
12510.22.95.0/2610.22.95.1 – 10.22.95.6210.22.95.63
12610.22.95.64/2610.22.95.65 – 10.22.95.12610.22.95.127
12710.22.95.128/2610.22.95.129 – 10.22.95.19010.22.95.191
12810.22.95.192/2610.22.95.193 – 10.22.95.25410.22.95.255
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 →