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)10.106.0.0/15
network10.106.0.0/15
broadcast10.107.255.255
first host10.106.0.1
last host10.107.255.254
subnet mask255.254.0.0
wildcard0.1.255.255
addresses131,072
usable hosts131,070
classA
ipcalc 10.106.0.0/15
address00001010.01101010.00000000.00000000
subnet mask11111111.11111110.00000000.00000000
network00001010.01101010.00000000.00000000
broadcast00001010.01101011.11111111.11111111
green = network part, grey = host part
hex0x0a6a0000
decimal174718976
reverse dns0.0.106.10.in-addr.arpa
ipv4-mapped::ffff:a6a:0

/15 split into /22 · 128 subnets

close ×
#networkhost rangebroadcast
110.106.0.0/2210.106.0.1 – 10.106.3.25410.106.3.255
210.106.4.0/2210.106.4.1 – 10.106.7.25410.106.7.255
310.106.8.0/2210.106.8.1 – 10.106.11.25410.106.11.255
410.106.12.0/2210.106.12.1 – 10.106.15.25410.106.15.255
510.106.16.0/2210.106.16.1 – 10.106.19.25410.106.19.255
610.106.20.0/2210.106.20.1 – 10.106.23.25410.106.23.255
710.106.24.0/2210.106.24.1 – 10.106.27.25410.106.27.255
810.106.28.0/2210.106.28.1 – 10.106.31.25410.106.31.255
910.106.32.0/2210.106.32.1 – 10.106.35.25410.106.35.255
1010.106.36.0/2210.106.36.1 – 10.106.39.25410.106.39.255
1110.106.40.0/2210.106.40.1 – 10.106.43.25410.106.43.255
1210.106.44.0/2210.106.44.1 – 10.106.47.25410.106.47.255
1310.106.48.0/2210.106.48.1 – 10.106.51.25410.106.51.255
1410.106.52.0/2210.106.52.1 – 10.106.55.25410.106.55.255
1510.106.56.0/2210.106.56.1 – 10.106.59.25410.106.59.255
1610.106.60.0/2210.106.60.1 – 10.106.63.25410.106.63.255
1710.106.64.0/2210.106.64.1 – 10.106.67.25410.106.67.255
1810.106.68.0/2210.106.68.1 – 10.106.71.25410.106.71.255
1910.106.72.0/2210.106.72.1 – 10.106.75.25410.106.75.255
2010.106.76.0/2210.106.76.1 – 10.106.79.25410.106.79.255
2110.106.80.0/2210.106.80.1 – 10.106.83.25410.106.83.255
2210.106.84.0/2210.106.84.1 – 10.106.87.25410.106.87.255
2310.106.88.0/2210.106.88.1 – 10.106.91.25410.106.91.255
2410.106.92.0/2210.106.92.1 – 10.106.95.25410.106.95.255
2510.106.96.0/2210.106.96.1 – 10.106.99.25410.106.99.255
2610.106.100.0/2210.106.100.1 – 10.106.103.25410.106.103.255
2710.106.104.0/2210.106.104.1 – 10.106.107.25410.106.107.255
2810.106.108.0/2210.106.108.1 – 10.106.111.25410.106.111.255
2910.106.112.0/2210.106.112.1 – 10.106.115.25410.106.115.255
3010.106.116.0/2210.106.116.1 – 10.106.119.25410.106.119.255
3110.106.120.0/2210.106.120.1 – 10.106.123.25410.106.123.255
3210.106.124.0/2210.106.124.1 – 10.106.127.25410.106.127.255
3310.106.128.0/2210.106.128.1 – 10.106.131.25410.106.131.255
3410.106.132.0/2210.106.132.1 – 10.106.135.25410.106.135.255
3510.106.136.0/2210.106.136.1 – 10.106.139.25410.106.139.255
3610.106.140.0/2210.106.140.1 – 10.106.143.25410.106.143.255
3710.106.144.0/2210.106.144.1 – 10.106.147.25410.106.147.255
3810.106.148.0/2210.106.148.1 – 10.106.151.25410.106.151.255
3910.106.152.0/2210.106.152.1 – 10.106.155.25410.106.155.255
4010.106.156.0/2210.106.156.1 – 10.106.159.25410.106.159.255
4110.106.160.0/2210.106.160.1 – 10.106.163.25410.106.163.255
4210.106.164.0/2210.106.164.1 – 10.106.167.25410.106.167.255
4310.106.168.0/2210.106.168.1 – 10.106.171.25410.106.171.255
4410.106.172.0/2210.106.172.1 – 10.106.175.25410.106.175.255
4510.106.176.0/2210.106.176.1 – 10.106.179.25410.106.179.255
4610.106.180.0/2210.106.180.1 – 10.106.183.25410.106.183.255
4710.106.184.0/2210.106.184.1 – 10.106.187.25410.106.187.255
4810.106.188.0/2210.106.188.1 – 10.106.191.25410.106.191.255
4910.106.192.0/2210.106.192.1 – 10.106.195.25410.106.195.255
5010.106.196.0/2210.106.196.1 – 10.106.199.25410.106.199.255
5110.106.200.0/2210.106.200.1 – 10.106.203.25410.106.203.255
5210.106.204.0/2210.106.204.1 – 10.106.207.25410.106.207.255
5310.106.208.0/2210.106.208.1 – 10.106.211.25410.106.211.255
5410.106.212.0/2210.106.212.1 – 10.106.215.25410.106.215.255
5510.106.216.0/2210.106.216.1 – 10.106.219.25410.106.219.255
5610.106.220.0/2210.106.220.1 – 10.106.223.25410.106.223.255
5710.106.224.0/2210.106.224.1 – 10.106.227.25410.106.227.255
5810.106.228.0/2210.106.228.1 – 10.106.231.25410.106.231.255
5910.106.232.0/2210.106.232.1 – 10.106.235.25410.106.235.255
6010.106.236.0/2210.106.236.1 – 10.106.239.25410.106.239.255
6110.106.240.0/2210.106.240.1 – 10.106.243.25410.106.243.255
6210.106.244.0/2210.106.244.1 – 10.106.247.25410.106.247.255
6310.106.248.0/2210.106.248.1 – 10.106.251.25410.106.251.255
6410.106.252.0/2210.106.252.1 – 10.106.255.25410.106.255.255
6510.107.0.0/2210.107.0.1 – 10.107.3.25410.107.3.255
6610.107.4.0/2210.107.4.1 – 10.107.7.25410.107.7.255
6710.107.8.0/2210.107.8.1 – 10.107.11.25410.107.11.255
6810.107.12.0/2210.107.12.1 – 10.107.15.25410.107.15.255
6910.107.16.0/2210.107.16.1 – 10.107.19.25410.107.19.255
7010.107.20.0/2210.107.20.1 – 10.107.23.25410.107.23.255
7110.107.24.0/2210.107.24.1 – 10.107.27.25410.107.27.255
7210.107.28.0/2210.107.28.1 – 10.107.31.25410.107.31.255
7310.107.32.0/2210.107.32.1 – 10.107.35.25410.107.35.255
7410.107.36.0/2210.107.36.1 – 10.107.39.25410.107.39.255
7510.107.40.0/2210.107.40.1 – 10.107.43.25410.107.43.255
7610.107.44.0/2210.107.44.1 – 10.107.47.25410.107.47.255
7710.107.48.0/2210.107.48.1 – 10.107.51.25410.107.51.255
7810.107.52.0/2210.107.52.1 – 10.107.55.25410.107.55.255
7910.107.56.0/2210.107.56.1 – 10.107.59.25410.107.59.255
8010.107.60.0/2210.107.60.1 – 10.107.63.25410.107.63.255
8110.107.64.0/2210.107.64.1 – 10.107.67.25410.107.67.255
8210.107.68.0/2210.107.68.1 – 10.107.71.25410.107.71.255
8310.107.72.0/2210.107.72.1 – 10.107.75.25410.107.75.255
8410.107.76.0/2210.107.76.1 – 10.107.79.25410.107.79.255
8510.107.80.0/2210.107.80.1 – 10.107.83.25410.107.83.255
8610.107.84.0/2210.107.84.1 – 10.107.87.25410.107.87.255
8710.107.88.0/2210.107.88.1 – 10.107.91.25410.107.91.255
8810.107.92.0/2210.107.92.1 – 10.107.95.25410.107.95.255
8910.107.96.0/2210.107.96.1 – 10.107.99.25410.107.99.255
9010.107.100.0/2210.107.100.1 – 10.107.103.25410.107.103.255
9110.107.104.0/2210.107.104.1 – 10.107.107.25410.107.107.255
9210.107.108.0/2210.107.108.1 – 10.107.111.25410.107.111.255
9310.107.112.0/2210.107.112.1 – 10.107.115.25410.107.115.255
9410.107.116.0/2210.107.116.1 – 10.107.119.25410.107.119.255
9510.107.120.0/2210.107.120.1 – 10.107.123.25410.107.123.255
9610.107.124.0/2210.107.124.1 – 10.107.127.25410.107.127.255
9710.107.128.0/2210.107.128.1 – 10.107.131.25410.107.131.255
9810.107.132.0/2210.107.132.1 – 10.107.135.25410.107.135.255
9910.107.136.0/2210.107.136.1 – 10.107.139.25410.107.139.255
10010.107.140.0/2210.107.140.1 – 10.107.143.25410.107.143.255
10110.107.144.0/2210.107.144.1 – 10.107.147.25410.107.147.255
10210.107.148.0/2210.107.148.1 – 10.107.151.25410.107.151.255
10310.107.152.0/2210.107.152.1 – 10.107.155.25410.107.155.255
10410.107.156.0/2210.107.156.1 – 10.107.159.25410.107.159.255
10510.107.160.0/2210.107.160.1 – 10.107.163.25410.107.163.255
10610.107.164.0/2210.107.164.1 – 10.107.167.25410.107.167.255
10710.107.168.0/2210.107.168.1 – 10.107.171.25410.107.171.255
10810.107.172.0/2210.107.172.1 – 10.107.175.25410.107.175.255
10910.107.176.0/2210.107.176.1 – 10.107.179.25410.107.179.255
11010.107.180.0/2210.107.180.1 – 10.107.183.25410.107.183.255
11110.107.184.0/2210.107.184.1 – 10.107.187.25410.107.187.255
11210.107.188.0/2210.107.188.1 – 10.107.191.25410.107.191.255
11310.107.192.0/2210.107.192.1 – 10.107.195.25410.107.195.255
11410.107.196.0/2210.107.196.1 – 10.107.199.25410.107.199.255
11510.107.200.0/2210.107.200.1 – 10.107.203.25410.107.203.255
11610.107.204.0/2210.107.204.1 – 10.107.207.25410.107.207.255
11710.107.208.0/2210.107.208.1 – 10.107.211.25410.107.211.255
11810.107.212.0/2210.107.212.1 – 10.107.215.25410.107.215.255
11910.107.216.0/2210.107.216.1 – 10.107.219.25410.107.219.255
12010.107.220.0/2210.107.220.1 – 10.107.223.25410.107.223.255
12110.107.224.0/2210.107.224.1 – 10.107.227.25410.107.227.255
12210.107.228.0/2210.107.228.1 – 10.107.231.25410.107.231.255
12310.107.232.0/2210.107.232.1 – 10.107.235.25410.107.235.255
12410.107.236.0/2210.107.236.1 – 10.107.239.25410.107.239.255
12510.107.240.0/2210.107.240.1 – 10.107.243.25410.107.243.255
12610.107.244.0/2210.107.244.1 – 10.107.247.25410.107.247.255
12710.107.248.0/2210.107.248.1 – 10.107.251.25410.107.251.255
12810.107.252.0/2210.107.252.1 – 10.107.255.25410.107.255.255
01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /15
/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-
/15255.254.0.0131,072131,0701
/16255.255.0.065,53665,5342 split →
/17255.255.128.032,76832,7664 split →
/18255.255.192.016,38416,3828 split →
/19255.255.224.08,1928,19016 split →
/20255.255.240.04,0964,09432 split →
/21255.255.248.02,0482,04664 split →
/22255.255.252.01,0241,022128 split →
/23255.255.254.0512510256 split →
/24255.255.255.0256254512 split →
/25255.255.255.1281281261,024 split →
/26255.255.255.19264622,048 split →
/27255.255.255.22432304,096 split →
/28255.255.255.24016148,192 split →
/29255.255.255.2488616,384 split →
/30255.255.255.2524232,768 split →
/31255.255.255.2542265,536 split →
/32255.255.255.25511131,072 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 →