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)10.22.0.0/17
network10.22.0.0/17
broadcast10.22.127.255
first host10.22.0.1
last host10.22.127.254
subnet mask255.255.128.0
wildcard0.0.127.255
addresses32,768
usable hosts32,766
classA
ipcalc 10.22.0.0/17
address00001010.00010110.00000000.00000000
subnet mask11111111.11111111.10000000.00000000
network00001010.00010110.00000000.00000000
broadcast00001010.00010110.01111111.11111111
green = network part, grey = host part
hex0x0a160000
decimal169213952
reverse dns0.0.22.10.in-addr.arpa
ipv4-mapped::ffff:a16:0

/17 split into /24 · 128 subnets

close ×
#networkhost rangebroadcast
110.22.0.0/2410.22.0.1 – 10.22.0.25410.22.0.255
210.22.1.0/2410.22.1.1 – 10.22.1.25410.22.1.255
310.22.2.0/2410.22.2.1 – 10.22.2.25410.22.2.255
410.22.3.0/2410.22.3.1 – 10.22.3.25410.22.3.255
510.22.4.0/2410.22.4.1 – 10.22.4.25410.22.4.255
610.22.5.0/2410.22.5.1 – 10.22.5.25410.22.5.255
710.22.6.0/2410.22.6.1 – 10.22.6.25410.22.6.255
810.22.7.0/2410.22.7.1 – 10.22.7.25410.22.7.255
910.22.8.0/2410.22.8.1 – 10.22.8.25410.22.8.255
1010.22.9.0/2410.22.9.1 – 10.22.9.25410.22.9.255
1110.22.10.0/2410.22.10.1 – 10.22.10.25410.22.10.255
1210.22.11.0/2410.22.11.1 – 10.22.11.25410.22.11.255
1310.22.12.0/2410.22.12.1 – 10.22.12.25410.22.12.255
1410.22.13.0/2410.22.13.1 – 10.22.13.25410.22.13.255
1510.22.14.0/2410.22.14.1 – 10.22.14.25410.22.14.255
1610.22.15.0/2410.22.15.1 – 10.22.15.25410.22.15.255
1710.22.16.0/2410.22.16.1 – 10.22.16.25410.22.16.255
1810.22.17.0/2410.22.17.1 – 10.22.17.25410.22.17.255
1910.22.18.0/2410.22.18.1 – 10.22.18.25410.22.18.255
2010.22.19.0/2410.22.19.1 – 10.22.19.25410.22.19.255
2110.22.20.0/2410.22.20.1 – 10.22.20.25410.22.20.255
2210.22.21.0/2410.22.21.1 – 10.22.21.25410.22.21.255
2310.22.22.0/2410.22.22.1 – 10.22.22.25410.22.22.255
2410.22.23.0/2410.22.23.1 – 10.22.23.25410.22.23.255
2510.22.24.0/2410.22.24.1 – 10.22.24.25410.22.24.255
2610.22.25.0/2410.22.25.1 – 10.22.25.25410.22.25.255
2710.22.26.0/2410.22.26.1 – 10.22.26.25410.22.26.255
2810.22.27.0/2410.22.27.1 – 10.22.27.25410.22.27.255
2910.22.28.0/2410.22.28.1 – 10.22.28.25410.22.28.255
3010.22.29.0/2410.22.29.1 – 10.22.29.25410.22.29.255
3110.22.30.0/2410.22.30.1 – 10.22.30.25410.22.30.255
3210.22.31.0/2410.22.31.1 – 10.22.31.25410.22.31.255
3310.22.32.0/2410.22.32.1 – 10.22.32.25410.22.32.255
3410.22.33.0/2410.22.33.1 – 10.22.33.25410.22.33.255
3510.22.34.0/2410.22.34.1 – 10.22.34.25410.22.34.255
3610.22.35.0/2410.22.35.1 – 10.22.35.25410.22.35.255
3710.22.36.0/2410.22.36.1 – 10.22.36.25410.22.36.255
3810.22.37.0/2410.22.37.1 – 10.22.37.25410.22.37.255
3910.22.38.0/2410.22.38.1 – 10.22.38.25410.22.38.255
4010.22.39.0/2410.22.39.1 – 10.22.39.25410.22.39.255
4110.22.40.0/2410.22.40.1 – 10.22.40.25410.22.40.255
4210.22.41.0/2410.22.41.1 – 10.22.41.25410.22.41.255
4310.22.42.0/2410.22.42.1 – 10.22.42.25410.22.42.255
4410.22.43.0/2410.22.43.1 – 10.22.43.25410.22.43.255
4510.22.44.0/2410.22.44.1 – 10.22.44.25410.22.44.255
4610.22.45.0/2410.22.45.1 – 10.22.45.25410.22.45.255
4710.22.46.0/2410.22.46.1 – 10.22.46.25410.22.46.255
4810.22.47.0/2410.22.47.1 – 10.22.47.25410.22.47.255
4910.22.48.0/2410.22.48.1 – 10.22.48.25410.22.48.255
5010.22.49.0/2410.22.49.1 – 10.22.49.25410.22.49.255
5110.22.50.0/2410.22.50.1 – 10.22.50.25410.22.50.255
5210.22.51.0/2410.22.51.1 – 10.22.51.25410.22.51.255
5310.22.52.0/2410.22.52.1 – 10.22.52.25410.22.52.255
5410.22.53.0/2410.22.53.1 – 10.22.53.25410.22.53.255
5510.22.54.0/2410.22.54.1 – 10.22.54.25410.22.54.255
5610.22.55.0/2410.22.55.1 – 10.22.55.25410.22.55.255
5710.22.56.0/2410.22.56.1 – 10.22.56.25410.22.56.255
5810.22.57.0/2410.22.57.1 – 10.22.57.25410.22.57.255
5910.22.58.0/2410.22.58.1 – 10.22.58.25410.22.58.255
6010.22.59.0/2410.22.59.1 – 10.22.59.25410.22.59.255
6110.22.60.0/2410.22.60.1 – 10.22.60.25410.22.60.255
6210.22.61.0/2410.22.61.1 – 10.22.61.25410.22.61.255
6310.22.62.0/2410.22.62.1 – 10.22.62.25410.22.62.255
6410.22.63.0/2410.22.63.1 – 10.22.63.25410.22.63.255
6510.22.64.0/2410.22.64.1 – 10.22.64.25410.22.64.255
6610.22.65.0/2410.22.65.1 – 10.22.65.25410.22.65.255
6710.22.66.0/2410.22.66.1 – 10.22.66.25410.22.66.255
6810.22.67.0/2410.22.67.1 – 10.22.67.25410.22.67.255
6910.22.68.0/2410.22.68.1 – 10.22.68.25410.22.68.255
7010.22.69.0/2410.22.69.1 – 10.22.69.25410.22.69.255
7110.22.70.0/2410.22.70.1 – 10.22.70.25410.22.70.255
7210.22.71.0/2410.22.71.1 – 10.22.71.25410.22.71.255
7310.22.72.0/2410.22.72.1 – 10.22.72.25410.22.72.255
7410.22.73.0/2410.22.73.1 – 10.22.73.25410.22.73.255
7510.22.74.0/2410.22.74.1 – 10.22.74.25410.22.74.255
7610.22.75.0/2410.22.75.1 – 10.22.75.25410.22.75.255
7710.22.76.0/2410.22.76.1 – 10.22.76.25410.22.76.255
7810.22.77.0/2410.22.77.1 – 10.22.77.25410.22.77.255
7910.22.78.0/2410.22.78.1 – 10.22.78.25410.22.78.255
8010.22.79.0/2410.22.79.1 – 10.22.79.25410.22.79.255
8110.22.80.0/2410.22.80.1 – 10.22.80.25410.22.80.255
8210.22.81.0/2410.22.81.1 – 10.22.81.25410.22.81.255
8310.22.82.0/2410.22.82.1 – 10.22.82.25410.22.82.255
8410.22.83.0/2410.22.83.1 – 10.22.83.25410.22.83.255
8510.22.84.0/2410.22.84.1 – 10.22.84.25410.22.84.255
8610.22.85.0/2410.22.85.1 – 10.22.85.25410.22.85.255
8710.22.86.0/2410.22.86.1 – 10.22.86.25410.22.86.255
8810.22.87.0/2410.22.87.1 – 10.22.87.25410.22.87.255
8910.22.88.0/2410.22.88.1 – 10.22.88.25410.22.88.255
9010.22.89.0/2410.22.89.1 – 10.22.89.25410.22.89.255
9110.22.90.0/2410.22.90.1 – 10.22.90.25410.22.90.255
9210.22.91.0/2410.22.91.1 – 10.22.91.25410.22.91.255
9310.22.92.0/2410.22.92.1 – 10.22.92.25410.22.92.255
9410.22.93.0/2410.22.93.1 – 10.22.93.25410.22.93.255
9510.22.94.0/2410.22.94.1 – 10.22.94.25410.22.94.255
9610.22.95.0/2410.22.95.1 – 10.22.95.25410.22.95.255
9710.22.96.0/2410.22.96.1 – 10.22.96.25410.22.96.255
9810.22.97.0/2410.22.97.1 – 10.22.97.25410.22.97.255
9910.22.98.0/2410.22.98.1 – 10.22.98.25410.22.98.255
10010.22.99.0/2410.22.99.1 – 10.22.99.25410.22.99.255
10110.22.100.0/2410.22.100.1 – 10.22.100.25410.22.100.255
10210.22.101.0/2410.22.101.1 – 10.22.101.25410.22.101.255
10310.22.102.0/2410.22.102.1 – 10.22.102.25410.22.102.255
10410.22.103.0/2410.22.103.1 – 10.22.103.25410.22.103.255
10510.22.104.0/2410.22.104.1 – 10.22.104.25410.22.104.255
10610.22.105.0/2410.22.105.1 – 10.22.105.25410.22.105.255
10710.22.106.0/2410.22.106.1 – 10.22.106.25410.22.106.255
10810.22.107.0/2410.22.107.1 – 10.22.107.25410.22.107.255
10910.22.108.0/2410.22.108.1 – 10.22.108.25410.22.108.255
11010.22.109.0/2410.22.109.1 – 10.22.109.25410.22.109.255
11110.22.110.0/2410.22.110.1 – 10.22.110.25410.22.110.255
11210.22.111.0/2410.22.111.1 – 10.22.111.25410.22.111.255
11310.22.112.0/2410.22.112.1 – 10.22.112.25410.22.112.255
11410.22.113.0/2410.22.113.1 – 10.22.113.25410.22.113.255
11510.22.114.0/2410.22.114.1 – 10.22.114.25410.22.114.255
11610.22.115.0/2410.22.115.1 – 10.22.115.25410.22.115.255
11710.22.116.0/2410.22.116.1 – 10.22.116.25410.22.116.255
11810.22.117.0/2410.22.117.1 – 10.22.117.25410.22.117.255
11910.22.118.0/2410.22.118.1 – 10.22.118.25410.22.118.255
12010.22.119.0/2410.22.119.1 – 10.22.119.25410.22.119.255
12110.22.120.0/2410.22.120.1 – 10.22.120.25410.22.120.255
12210.22.121.0/2410.22.121.1 – 10.22.121.25410.22.121.255
12310.22.122.0/2410.22.122.1 – 10.22.122.25410.22.122.255
12410.22.123.0/2410.22.123.1 – 10.22.123.25410.22.123.255
12510.22.124.0/2410.22.124.1 – 10.22.124.25410.22.124.255
12610.22.125.0/2410.22.125.1 – 10.22.125.25410.22.125.255
12710.22.126.0/2410.22.126.1 – 10.22.126.25410.22.126.255
12810.22.127.0/2410.22.127.1 – 10.22.127.25410.22.127.255
01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /17
/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-
/17255.255.128.032,76832,7661
/18255.255.192.016,38416,3822 split →
/19255.255.224.08,1928,1904 split →
/20255.255.240.04,0964,0948 split →
/21255.255.248.02,0482,04616 split →
/22255.255.252.01,0241,02232 split →
/23255.255.254.051251064 split →
/24255.255.255.0256254128 split →
/25255.255.255.128128126256 split →
/26255.255.255.1926462512 split →
/27255.255.255.22432301,024 split →
/28255.255.255.24016142,048 split →
/29255.255.255.248864,096 split →
/30255.255.255.252428,192 split →
/31255.255.255.2542216,384 split →
/32255.255.255.2551132,768 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 →