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
private IP (RFC 1918)10.113.0.0/17
network10.113.0.0/17
broadcast10.113.127.255
first host10.113.0.1
last host10.113.127.254
subnet mask255.255.128.0
wildcard0.0.127.255
addresses32,768
usable hosts32,766
classA
ipcalc 10.113.0.0/17
address00001010.01110001.00000000.00000000
subnet mask11111111.11111111.10000000.00000000
network00001010.01110001.00000000.00000000
broadcast00001010.01110001.01111111.11111111
green = network part, grey = host part
hex0x0a710000
decimal175177728
reverse dns0.0.113.10.in-addr.arpa
ipv4-mapped::ffff:a71:0

/17 split into /24 · 128 subnets

close ×
#networkhost rangebroadcast
110.113.0.0/2410.113.0.1 – 10.113.0.25410.113.0.255
210.113.1.0/2410.113.1.1 – 10.113.1.25410.113.1.255
310.113.2.0/2410.113.2.1 – 10.113.2.25410.113.2.255
410.113.3.0/2410.113.3.1 – 10.113.3.25410.113.3.255
510.113.4.0/2410.113.4.1 – 10.113.4.25410.113.4.255
610.113.5.0/2410.113.5.1 – 10.113.5.25410.113.5.255
710.113.6.0/2410.113.6.1 – 10.113.6.25410.113.6.255
810.113.7.0/2410.113.7.1 – 10.113.7.25410.113.7.255
910.113.8.0/2410.113.8.1 – 10.113.8.25410.113.8.255
1010.113.9.0/2410.113.9.1 – 10.113.9.25410.113.9.255
1110.113.10.0/2410.113.10.1 – 10.113.10.25410.113.10.255
1210.113.11.0/2410.113.11.1 – 10.113.11.25410.113.11.255
1310.113.12.0/2410.113.12.1 – 10.113.12.25410.113.12.255
1410.113.13.0/2410.113.13.1 – 10.113.13.25410.113.13.255
1510.113.14.0/2410.113.14.1 – 10.113.14.25410.113.14.255
1610.113.15.0/2410.113.15.1 – 10.113.15.25410.113.15.255
1710.113.16.0/2410.113.16.1 – 10.113.16.25410.113.16.255
1810.113.17.0/2410.113.17.1 – 10.113.17.25410.113.17.255
1910.113.18.0/2410.113.18.1 – 10.113.18.25410.113.18.255
2010.113.19.0/2410.113.19.1 – 10.113.19.25410.113.19.255
2110.113.20.0/2410.113.20.1 – 10.113.20.25410.113.20.255
2210.113.21.0/2410.113.21.1 – 10.113.21.25410.113.21.255
2310.113.22.0/2410.113.22.1 – 10.113.22.25410.113.22.255
2410.113.23.0/2410.113.23.1 – 10.113.23.25410.113.23.255
2510.113.24.0/2410.113.24.1 – 10.113.24.25410.113.24.255
2610.113.25.0/2410.113.25.1 – 10.113.25.25410.113.25.255
2710.113.26.0/2410.113.26.1 – 10.113.26.25410.113.26.255
2810.113.27.0/2410.113.27.1 – 10.113.27.25410.113.27.255
2910.113.28.0/2410.113.28.1 – 10.113.28.25410.113.28.255
3010.113.29.0/2410.113.29.1 – 10.113.29.25410.113.29.255
3110.113.30.0/2410.113.30.1 – 10.113.30.25410.113.30.255
3210.113.31.0/2410.113.31.1 – 10.113.31.25410.113.31.255
3310.113.32.0/2410.113.32.1 – 10.113.32.25410.113.32.255
3410.113.33.0/2410.113.33.1 – 10.113.33.25410.113.33.255
3510.113.34.0/2410.113.34.1 – 10.113.34.25410.113.34.255
3610.113.35.0/2410.113.35.1 – 10.113.35.25410.113.35.255
3710.113.36.0/2410.113.36.1 – 10.113.36.25410.113.36.255
3810.113.37.0/2410.113.37.1 – 10.113.37.25410.113.37.255
3910.113.38.0/2410.113.38.1 – 10.113.38.25410.113.38.255
4010.113.39.0/2410.113.39.1 – 10.113.39.25410.113.39.255
4110.113.40.0/2410.113.40.1 – 10.113.40.25410.113.40.255
4210.113.41.0/2410.113.41.1 – 10.113.41.25410.113.41.255
4310.113.42.0/2410.113.42.1 – 10.113.42.25410.113.42.255
4410.113.43.0/2410.113.43.1 – 10.113.43.25410.113.43.255
4510.113.44.0/2410.113.44.1 – 10.113.44.25410.113.44.255
4610.113.45.0/2410.113.45.1 – 10.113.45.25410.113.45.255
4710.113.46.0/2410.113.46.1 – 10.113.46.25410.113.46.255
4810.113.47.0/2410.113.47.1 – 10.113.47.25410.113.47.255
4910.113.48.0/2410.113.48.1 – 10.113.48.25410.113.48.255
5010.113.49.0/2410.113.49.1 – 10.113.49.25410.113.49.255
5110.113.50.0/2410.113.50.1 – 10.113.50.25410.113.50.255
5210.113.51.0/2410.113.51.1 – 10.113.51.25410.113.51.255
5310.113.52.0/2410.113.52.1 – 10.113.52.25410.113.52.255
5410.113.53.0/2410.113.53.1 – 10.113.53.25410.113.53.255
5510.113.54.0/2410.113.54.1 – 10.113.54.25410.113.54.255
5610.113.55.0/2410.113.55.1 – 10.113.55.25410.113.55.255
5710.113.56.0/2410.113.56.1 – 10.113.56.25410.113.56.255
5810.113.57.0/2410.113.57.1 – 10.113.57.25410.113.57.255
5910.113.58.0/2410.113.58.1 – 10.113.58.25410.113.58.255
6010.113.59.0/2410.113.59.1 – 10.113.59.25410.113.59.255
6110.113.60.0/2410.113.60.1 – 10.113.60.25410.113.60.255
6210.113.61.0/2410.113.61.1 – 10.113.61.25410.113.61.255
6310.113.62.0/2410.113.62.1 – 10.113.62.25410.113.62.255
6410.113.63.0/2410.113.63.1 – 10.113.63.25410.113.63.255
6510.113.64.0/2410.113.64.1 – 10.113.64.25410.113.64.255
6610.113.65.0/2410.113.65.1 – 10.113.65.25410.113.65.255
6710.113.66.0/2410.113.66.1 – 10.113.66.25410.113.66.255
6810.113.67.0/2410.113.67.1 – 10.113.67.25410.113.67.255
6910.113.68.0/2410.113.68.1 – 10.113.68.25410.113.68.255
7010.113.69.0/2410.113.69.1 – 10.113.69.25410.113.69.255
7110.113.70.0/2410.113.70.1 – 10.113.70.25410.113.70.255
7210.113.71.0/2410.113.71.1 – 10.113.71.25410.113.71.255
7310.113.72.0/2410.113.72.1 – 10.113.72.25410.113.72.255
7410.113.73.0/2410.113.73.1 – 10.113.73.25410.113.73.255
7510.113.74.0/2410.113.74.1 – 10.113.74.25410.113.74.255
7610.113.75.0/2410.113.75.1 – 10.113.75.25410.113.75.255
7710.113.76.0/2410.113.76.1 – 10.113.76.25410.113.76.255
7810.113.77.0/2410.113.77.1 – 10.113.77.25410.113.77.255
7910.113.78.0/2410.113.78.1 – 10.113.78.25410.113.78.255
8010.113.79.0/2410.113.79.1 – 10.113.79.25410.113.79.255
8110.113.80.0/2410.113.80.1 – 10.113.80.25410.113.80.255
8210.113.81.0/2410.113.81.1 – 10.113.81.25410.113.81.255
8310.113.82.0/2410.113.82.1 – 10.113.82.25410.113.82.255
8410.113.83.0/2410.113.83.1 – 10.113.83.25410.113.83.255
8510.113.84.0/2410.113.84.1 – 10.113.84.25410.113.84.255
8610.113.85.0/2410.113.85.1 – 10.113.85.25410.113.85.255
8710.113.86.0/2410.113.86.1 – 10.113.86.25410.113.86.255
8810.113.87.0/2410.113.87.1 – 10.113.87.25410.113.87.255
8910.113.88.0/2410.113.88.1 – 10.113.88.25410.113.88.255
9010.113.89.0/2410.113.89.1 – 10.113.89.25410.113.89.255
9110.113.90.0/2410.113.90.1 – 10.113.90.25410.113.90.255
9210.113.91.0/2410.113.91.1 – 10.113.91.25410.113.91.255
9310.113.92.0/2410.113.92.1 – 10.113.92.25410.113.92.255
9410.113.93.0/2410.113.93.1 – 10.113.93.25410.113.93.255
9510.113.94.0/2410.113.94.1 – 10.113.94.25410.113.94.255
9610.113.95.0/2410.113.95.1 – 10.113.95.25410.113.95.255
9710.113.96.0/2410.113.96.1 – 10.113.96.25410.113.96.255
9810.113.97.0/2410.113.97.1 – 10.113.97.25410.113.97.255
9910.113.98.0/2410.113.98.1 – 10.113.98.25410.113.98.255
10010.113.99.0/2410.113.99.1 – 10.113.99.25410.113.99.255
10110.113.100.0/2410.113.100.1 – 10.113.100.25410.113.100.255
10210.113.101.0/2410.113.101.1 – 10.113.101.25410.113.101.255
10310.113.102.0/2410.113.102.1 – 10.113.102.25410.113.102.255
10410.113.103.0/2410.113.103.1 – 10.113.103.25410.113.103.255
10510.113.104.0/2410.113.104.1 – 10.113.104.25410.113.104.255
10610.113.105.0/2410.113.105.1 – 10.113.105.25410.113.105.255
10710.113.106.0/2410.113.106.1 – 10.113.106.25410.113.106.255
10810.113.107.0/2410.113.107.1 – 10.113.107.25410.113.107.255
10910.113.108.0/2410.113.108.1 – 10.113.108.25410.113.108.255
11010.113.109.0/2410.113.109.1 – 10.113.109.25410.113.109.255
11110.113.110.0/2410.113.110.1 – 10.113.110.25410.113.110.255
11210.113.111.0/2410.113.111.1 – 10.113.111.25410.113.111.255
11310.113.112.0/2410.113.112.1 – 10.113.112.25410.113.112.255
11410.113.113.0/2410.113.113.1 – 10.113.113.25410.113.113.255
11510.113.114.0/2410.113.114.1 – 10.113.114.25410.113.114.255
11610.113.115.0/2410.113.115.1 – 10.113.115.25410.113.115.255
11710.113.116.0/2410.113.116.1 – 10.113.116.25410.113.116.255
11810.113.117.0/2410.113.117.1 – 10.113.117.25410.113.117.255
11910.113.118.0/2410.113.118.1 – 10.113.118.25410.113.118.255
12010.113.119.0/2410.113.119.1 – 10.113.119.25410.113.119.255
12110.113.120.0/2410.113.120.1 – 10.113.120.25410.113.120.255
12210.113.121.0/2410.113.121.1 – 10.113.121.25410.113.121.255
12310.113.122.0/2410.113.122.1 – 10.113.122.25410.113.122.255
12410.113.123.0/2410.113.123.1 – 10.113.123.25410.113.123.255
12510.113.124.0/2410.113.124.1 – 10.113.124.25410.113.124.255
12610.113.125.0/2410.113.125.1 – 10.113.125.25410.113.125.255
12710.113.126.0/2410.113.126.1 – 10.113.126.25410.113.126.255
12810.113.127.0/2410.113.127.1 – 10.113.127.25410.113.127.255
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 →