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)10.60.0.0/17
network10.60.0.0/17
broadcast10.60.127.255
first host10.60.0.1
last host10.60.127.254
subnet mask255.255.128.0
wildcard0.0.127.255
addresses32,768
usable hosts32,766
classA
ipcalc 10.60.0.0/17
address00001010.00111100.00000000.00000000
subnet mask11111111.11111111.10000000.00000000
network00001010.00111100.00000000.00000000
broadcast00001010.00111100.01111111.11111111
green = network part, grey = host part
hex0x0a3c0000
decimal171704320
reverse dns0.0.60.10.in-addr.arpa
ipv4-mapped::ffff:a3c:0

/17 split into /24 · 128 subnets

close ×
#networkhost rangebroadcast
110.60.0.0/2410.60.0.1 – 10.60.0.25410.60.0.255
210.60.1.0/2410.60.1.1 – 10.60.1.25410.60.1.255
310.60.2.0/2410.60.2.1 – 10.60.2.25410.60.2.255
410.60.3.0/2410.60.3.1 – 10.60.3.25410.60.3.255
510.60.4.0/2410.60.4.1 – 10.60.4.25410.60.4.255
610.60.5.0/2410.60.5.1 – 10.60.5.25410.60.5.255
710.60.6.0/2410.60.6.1 – 10.60.6.25410.60.6.255
810.60.7.0/2410.60.7.1 – 10.60.7.25410.60.7.255
910.60.8.0/2410.60.8.1 – 10.60.8.25410.60.8.255
1010.60.9.0/2410.60.9.1 – 10.60.9.25410.60.9.255
1110.60.10.0/2410.60.10.1 – 10.60.10.25410.60.10.255
1210.60.11.0/2410.60.11.1 – 10.60.11.25410.60.11.255
1310.60.12.0/2410.60.12.1 – 10.60.12.25410.60.12.255
1410.60.13.0/2410.60.13.1 – 10.60.13.25410.60.13.255
1510.60.14.0/2410.60.14.1 – 10.60.14.25410.60.14.255
1610.60.15.0/2410.60.15.1 – 10.60.15.25410.60.15.255
1710.60.16.0/2410.60.16.1 – 10.60.16.25410.60.16.255
1810.60.17.0/2410.60.17.1 – 10.60.17.25410.60.17.255
1910.60.18.0/2410.60.18.1 – 10.60.18.25410.60.18.255
2010.60.19.0/2410.60.19.1 – 10.60.19.25410.60.19.255
2110.60.20.0/2410.60.20.1 – 10.60.20.25410.60.20.255
2210.60.21.0/2410.60.21.1 – 10.60.21.25410.60.21.255
2310.60.22.0/2410.60.22.1 – 10.60.22.25410.60.22.255
2410.60.23.0/2410.60.23.1 – 10.60.23.25410.60.23.255
2510.60.24.0/2410.60.24.1 – 10.60.24.25410.60.24.255
2610.60.25.0/2410.60.25.1 – 10.60.25.25410.60.25.255
2710.60.26.0/2410.60.26.1 – 10.60.26.25410.60.26.255
2810.60.27.0/2410.60.27.1 – 10.60.27.25410.60.27.255
2910.60.28.0/2410.60.28.1 – 10.60.28.25410.60.28.255
3010.60.29.0/2410.60.29.1 – 10.60.29.25410.60.29.255
3110.60.30.0/2410.60.30.1 – 10.60.30.25410.60.30.255
3210.60.31.0/2410.60.31.1 – 10.60.31.25410.60.31.255
3310.60.32.0/2410.60.32.1 – 10.60.32.25410.60.32.255
3410.60.33.0/2410.60.33.1 – 10.60.33.25410.60.33.255
3510.60.34.0/2410.60.34.1 – 10.60.34.25410.60.34.255
3610.60.35.0/2410.60.35.1 – 10.60.35.25410.60.35.255
3710.60.36.0/2410.60.36.1 – 10.60.36.25410.60.36.255
3810.60.37.0/2410.60.37.1 – 10.60.37.25410.60.37.255
3910.60.38.0/2410.60.38.1 – 10.60.38.25410.60.38.255
4010.60.39.0/2410.60.39.1 – 10.60.39.25410.60.39.255
4110.60.40.0/2410.60.40.1 – 10.60.40.25410.60.40.255
4210.60.41.0/2410.60.41.1 – 10.60.41.25410.60.41.255
4310.60.42.0/2410.60.42.1 – 10.60.42.25410.60.42.255
4410.60.43.0/2410.60.43.1 – 10.60.43.25410.60.43.255
4510.60.44.0/2410.60.44.1 – 10.60.44.25410.60.44.255
4610.60.45.0/2410.60.45.1 – 10.60.45.25410.60.45.255
4710.60.46.0/2410.60.46.1 – 10.60.46.25410.60.46.255
4810.60.47.0/2410.60.47.1 – 10.60.47.25410.60.47.255
4910.60.48.0/2410.60.48.1 – 10.60.48.25410.60.48.255
5010.60.49.0/2410.60.49.1 – 10.60.49.25410.60.49.255
5110.60.50.0/2410.60.50.1 – 10.60.50.25410.60.50.255
5210.60.51.0/2410.60.51.1 – 10.60.51.25410.60.51.255
5310.60.52.0/2410.60.52.1 – 10.60.52.25410.60.52.255
5410.60.53.0/2410.60.53.1 – 10.60.53.25410.60.53.255
5510.60.54.0/2410.60.54.1 – 10.60.54.25410.60.54.255
5610.60.55.0/2410.60.55.1 – 10.60.55.25410.60.55.255
5710.60.56.0/2410.60.56.1 – 10.60.56.25410.60.56.255
5810.60.57.0/2410.60.57.1 – 10.60.57.25410.60.57.255
5910.60.58.0/2410.60.58.1 – 10.60.58.25410.60.58.255
6010.60.59.0/2410.60.59.1 – 10.60.59.25410.60.59.255
6110.60.60.0/2410.60.60.1 – 10.60.60.25410.60.60.255
6210.60.61.0/2410.60.61.1 – 10.60.61.25410.60.61.255
6310.60.62.0/2410.60.62.1 – 10.60.62.25410.60.62.255
6410.60.63.0/2410.60.63.1 – 10.60.63.25410.60.63.255
6510.60.64.0/2410.60.64.1 – 10.60.64.25410.60.64.255
6610.60.65.0/2410.60.65.1 – 10.60.65.25410.60.65.255
6710.60.66.0/2410.60.66.1 – 10.60.66.25410.60.66.255
6810.60.67.0/2410.60.67.1 – 10.60.67.25410.60.67.255
6910.60.68.0/2410.60.68.1 – 10.60.68.25410.60.68.255
7010.60.69.0/2410.60.69.1 – 10.60.69.25410.60.69.255
7110.60.70.0/2410.60.70.1 – 10.60.70.25410.60.70.255
7210.60.71.0/2410.60.71.1 – 10.60.71.25410.60.71.255
7310.60.72.0/2410.60.72.1 – 10.60.72.25410.60.72.255
7410.60.73.0/2410.60.73.1 – 10.60.73.25410.60.73.255
7510.60.74.0/2410.60.74.1 – 10.60.74.25410.60.74.255
7610.60.75.0/2410.60.75.1 – 10.60.75.25410.60.75.255
7710.60.76.0/2410.60.76.1 – 10.60.76.25410.60.76.255
7810.60.77.0/2410.60.77.1 – 10.60.77.25410.60.77.255
7910.60.78.0/2410.60.78.1 – 10.60.78.25410.60.78.255
8010.60.79.0/2410.60.79.1 – 10.60.79.25410.60.79.255
8110.60.80.0/2410.60.80.1 – 10.60.80.25410.60.80.255
8210.60.81.0/2410.60.81.1 – 10.60.81.25410.60.81.255
8310.60.82.0/2410.60.82.1 – 10.60.82.25410.60.82.255
8410.60.83.0/2410.60.83.1 – 10.60.83.25410.60.83.255
8510.60.84.0/2410.60.84.1 – 10.60.84.25410.60.84.255
8610.60.85.0/2410.60.85.1 – 10.60.85.25410.60.85.255
8710.60.86.0/2410.60.86.1 – 10.60.86.25410.60.86.255
8810.60.87.0/2410.60.87.1 – 10.60.87.25410.60.87.255
8910.60.88.0/2410.60.88.1 – 10.60.88.25410.60.88.255
9010.60.89.0/2410.60.89.1 – 10.60.89.25410.60.89.255
9110.60.90.0/2410.60.90.1 – 10.60.90.25410.60.90.255
9210.60.91.0/2410.60.91.1 – 10.60.91.25410.60.91.255
9310.60.92.0/2410.60.92.1 – 10.60.92.25410.60.92.255
9410.60.93.0/2410.60.93.1 – 10.60.93.25410.60.93.255
9510.60.94.0/2410.60.94.1 – 10.60.94.25410.60.94.255
9610.60.95.0/2410.60.95.1 – 10.60.95.25410.60.95.255
9710.60.96.0/2410.60.96.1 – 10.60.96.25410.60.96.255
9810.60.97.0/2410.60.97.1 – 10.60.97.25410.60.97.255
9910.60.98.0/2410.60.98.1 – 10.60.98.25410.60.98.255
10010.60.99.0/2410.60.99.1 – 10.60.99.25410.60.99.255
10110.60.100.0/2410.60.100.1 – 10.60.100.25410.60.100.255
10210.60.101.0/2410.60.101.1 – 10.60.101.25410.60.101.255
10310.60.102.0/2410.60.102.1 – 10.60.102.25410.60.102.255
10410.60.103.0/2410.60.103.1 – 10.60.103.25410.60.103.255
10510.60.104.0/2410.60.104.1 – 10.60.104.25410.60.104.255
10610.60.105.0/2410.60.105.1 – 10.60.105.25410.60.105.255
10710.60.106.0/2410.60.106.1 – 10.60.106.25410.60.106.255
10810.60.107.0/2410.60.107.1 – 10.60.107.25410.60.107.255
10910.60.108.0/2410.60.108.1 – 10.60.108.25410.60.108.255
11010.60.109.0/2410.60.109.1 – 10.60.109.25410.60.109.255
11110.60.110.0/2410.60.110.1 – 10.60.110.25410.60.110.255
11210.60.111.0/2410.60.111.1 – 10.60.111.25410.60.111.255
11310.60.112.0/2410.60.112.1 – 10.60.112.25410.60.112.255
11410.60.113.0/2410.60.113.1 – 10.60.113.25410.60.113.255
11510.60.114.0/2410.60.114.1 – 10.60.114.25410.60.114.255
11610.60.115.0/2410.60.115.1 – 10.60.115.25410.60.115.255
11710.60.116.0/2410.60.116.1 – 10.60.116.25410.60.116.255
11810.60.117.0/2410.60.117.1 – 10.60.117.25410.60.117.255
11910.60.118.0/2410.60.118.1 – 10.60.118.25410.60.118.255
12010.60.119.0/2410.60.119.1 – 10.60.119.25410.60.119.255
12110.60.120.0/2410.60.120.1 – 10.60.120.25410.60.120.255
12210.60.121.0/2410.60.121.1 – 10.60.121.25410.60.121.255
12310.60.122.0/2410.60.122.1 – 10.60.122.25410.60.122.255
12410.60.123.0/2410.60.123.1 – 10.60.123.25410.60.123.255
12510.60.124.0/2410.60.124.1 – 10.60.124.25410.60.124.255
12610.60.125.0/2410.60.125.1 – 10.60.125.25410.60.125.255
12710.60.126.0/2410.60.126.1 – 10.60.126.25410.60.126.255
12810.60.127.0/2410.60.127.1 – 10.60.127.25410.60.127.255
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 →