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)10.95.0.0/17
network10.95.0.0/17
broadcast10.95.127.255
first host10.95.0.1
last host10.95.127.254
subnet mask255.255.128.0
wildcard0.0.127.255
addresses32,768
usable hosts32,766
classA
ipcalc 10.95.0.0/17
address00001010.01011111.00000000.00000000
subnet mask11111111.11111111.10000000.00000000
network00001010.01011111.00000000.00000000
broadcast00001010.01011111.01111111.11111111
green = network part, grey = host part
hex0x0a5f0000
decimal173998080
reverse dns0.0.95.10.in-addr.arpa
ipv4-mapped::ffff:a5f:0

/17 split into /24 · 128 subnets

close ×
#networkhost rangebroadcast
110.95.0.0/2410.95.0.1 – 10.95.0.25410.95.0.255
210.95.1.0/2410.95.1.1 – 10.95.1.25410.95.1.255
310.95.2.0/2410.95.2.1 – 10.95.2.25410.95.2.255
410.95.3.0/2410.95.3.1 – 10.95.3.25410.95.3.255
510.95.4.0/2410.95.4.1 – 10.95.4.25410.95.4.255
610.95.5.0/2410.95.5.1 – 10.95.5.25410.95.5.255
710.95.6.0/2410.95.6.1 – 10.95.6.25410.95.6.255
810.95.7.0/2410.95.7.1 – 10.95.7.25410.95.7.255
910.95.8.0/2410.95.8.1 – 10.95.8.25410.95.8.255
1010.95.9.0/2410.95.9.1 – 10.95.9.25410.95.9.255
1110.95.10.0/2410.95.10.1 – 10.95.10.25410.95.10.255
1210.95.11.0/2410.95.11.1 – 10.95.11.25410.95.11.255
1310.95.12.0/2410.95.12.1 – 10.95.12.25410.95.12.255
1410.95.13.0/2410.95.13.1 – 10.95.13.25410.95.13.255
1510.95.14.0/2410.95.14.1 – 10.95.14.25410.95.14.255
1610.95.15.0/2410.95.15.1 – 10.95.15.25410.95.15.255
1710.95.16.0/2410.95.16.1 – 10.95.16.25410.95.16.255
1810.95.17.0/2410.95.17.1 – 10.95.17.25410.95.17.255
1910.95.18.0/2410.95.18.1 – 10.95.18.25410.95.18.255
2010.95.19.0/2410.95.19.1 – 10.95.19.25410.95.19.255
2110.95.20.0/2410.95.20.1 – 10.95.20.25410.95.20.255
2210.95.21.0/2410.95.21.1 – 10.95.21.25410.95.21.255
2310.95.22.0/2410.95.22.1 – 10.95.22.25410.95.22.255
2410.95.23.0/2410.95.23.1 – 10.95.23.25410.95.23.255
2510.95.24.0/2410.95.24.1 – 10.95.24.25410.95.24.255
2610.95.25.0/2410.95.25.1 – 10.95.25.25410.95.25.255
2710.95.26.0/2410.95.26.1 – 10.95.26.25410.95.26.255
2810.95.27.0/2410.95.27.1 – 10.95.27.25410.95.27.255
2910.95.28.0/2410.95.28.1 – 10.95.28.25410.95.28.255
3010.95.29.0/2410.95.29.1 – 10.95.29.25410.95.29.255
3110.95.30.0/2410.95.30.1 – 10.95.30.25410.95.30.255
3210.95.31.0/2410.95.31.1 – 10.95.31.25410.95.31.255
3310.95.32.0/2410.95.32.1 – 10.95.32.25410.95.32.255
3410.95.33.0/2410.95.33.1 – 10.95.33.25410.95.33.255
3510.95.34.0/2410.95.34.1 – 10.95.34.25410.95.34.255
3610.95.35.0/2410.95.35.1 – 10.95.35.25410.95.35.255
3710.95.36.0/2410.95.36.1 – 10.95.36.25410.95.36.255
3810.95.37.0/2410.95.37.1 – 10.95.37.25410.95.37.255
3910.95.38.0/2410.95.38.1 – 10.95.38.25410.95.38.255
4010.95.39.0/2410.95.39.1 – 10.95.39.25410.95.39.255
4110.95.40.0/2410.95.40.1 – 10.95.40.25410.95.40.255
4210.95.41.0/2410.95.41.1 – 10.95.41.25410.95.41.255
4310.95.42.0/2410.95.42.1 – 10.95.42.25410.95.42.255
4410.95.43.0/2410.95.43.1 – 10.95.43.25410.95.43.255
4510.95.44.0/2410.95.44.1 – 10.95.44.25410.95.44.255
4610.95.45.0/2410.95.45.1 – 10.95.45.25410.95.45.255
4710.95.46.0/2410.95.46.1 – 10.95.46.25410.95.46.255
4810.95.47.0/2410.95.47.1 – 10.95.47.25410.95.47.255
4910.95.48.0/2410.95.48.1 – 10.95.48.25410.95.48.255
5010.95.49.0/2410.95.49.1 – 10.95.49.25410.95.49.255
5110.95.50.0/2410.95.50.1 – 10.95.50.25410.95.50.255
5210.95.51.0/2410.95.51.1 – 10.95.51.25410.95.51.255
5310.95.52.0/2410.95.52.1 – 10.95.52.25410.95.52.255
5410.95.53.0/2410.95.53.1 – 10.95.53.25410.95.53.255
5510.95.54.0/2410.95.54.1 – 10.95.54.25410.95.54.255
5610.95.55.0/2410.95.55.1 – 10.95.55.25410.95.55.255
5710.95.56.0/2410.95.56.1 – 10.95.56.25410.95.56.255
5810.95.57.0/2410.95.57.1 – 10.95.57.25410.95.57.255
5910.95.58.0/2410.95.58.1 – 10.95.58.25410.95.58.255
6010.95.59.0/2410.95.59.1 – 10.95.59.25410.95.59.255
6110.95.60.0/2410.95.60.1 – 10.95.60.25410.95.60.255
6210.95.61.0/2410.95.61.1 – 10.95.61.25410.95.61.255
6310.95.62.0/2410.95.62.1 – 10.95.62.25410.95.62.255
6410.95.63.0/2410.95.63.1 – 10.95.63.25410.95.63.255
6510.95.64.0/2410.95.64.1 – 10.95.64.25410.95.64.255
6610.95.65.0/2410.95.65.1 – 10.95.65.25410.95.65.255
6710.95.66.0/2410.95.66.1 – 10.95.66.25410.95.66.255
6810.95.67.0/2410.95.67.1 – 10.95.67.25410.95.67.255
6910.95.68.0/2410.95.68.1 – 10.95.68.25410.95.68.255
7010.95.69.0/2410.95.69.1 – 10.95.69.25410.95.69.255
7110.95.70.0/2410.95.70.1 – 10.95.70.25410.95.70.255
7210.95.71.0/2410.95.71.1 – 10.95.71.25410.95.71.255
7310.95.72.0/2410.95.72.1 – 10.95.72.25410.95.72.255
7410.95.73.0/2410.95.73.1 – 10.95.73.25410.95.73.255
7510.95.74.0/2410.95.74.1 – 10.95.74.25410.95.74.255
7610.95.75.0/2410.95.75.1 – 10.95.75.25410.95.75.255
7710.95.76.0/2410.95.76.1 – 10.95.76.25410.95.76.255
7810.95.77.0/2410.95.77.1 – 10.95.77.25410.95.77.255
7910.95.78.0/2410.95.78.1 – 10.95.78.25410.95.78.255
8010.95.79.0/2410.95.79.1 – 10.95.79.25410.95.79.255
8110.95.80.0/2410.95.80.1 – 10.95.80.25410.95.80.255
8210.95.81.0/2410.95.81.1 – 10.95.81.25410.95.81.255
8310.95.82.0/2410.95.82.1 – 10.95.82.25410.95.82.255
8410.95.83.0/2410.95.83.1 – 10.95.83.25410.95.83.255
8510.95.84.0/2410.95.84.1 – 10.95.84.25410.95.84.255
8610.95.85.0/2410.95.85.1 – 10.95.85.25410.95.85.255
8710.95.86.0/2410.95.86.1 – 10.95.86.25410.95.86.255
8810.95.87.0/2410.95.87.1 – 10.95.87.25410.95.87.255
8910.95.88.0/2410.95.88.1 – 10.95.88.25410.95.88.255
9010.95.89.0/2410.95.89.1 – 10.95.89.25410.95.89.255
9110.95.90.0/2410.95.90.1 – 10.95.90.25410.95.90.255
9210.95.91.0/2410.95.91.1 – 10.95.91.25410.95.91.255
9310.95.92.0/2410.95.92.1 – 10.95.92.25410.95.92.255
9410.95.93.0/2410.95.93.1 – 10.95.93.25410.95.93.255
9510.95.94.0/2410.95.94.1 – 10.95.94.25410.95.94.255
9610.95.95.0/2410.95.95.1 – 10.95.95.25410.95.95.255
9710.95.96.0/2410.95.96.1 – 10.95.96.25410.95.96.255
9810.95.97.0/2410.95.97.1 – 10.95.97.25410.95.97.255
9910.95.98.0/2410.95.98.1 – 10.95.98.25410.95.98.255
10010.95.99.0/2410.95.99.1 – 10.95.99.25410.95.99.255
10110.95.100.0/2410.95.100.1 – 10.95.100.25410.95.100.255
10210.95.101.0/2410.95.101.1 – 10.95.101.25410.95.101.255
10310.95.102.0/2410.95.102.1 – 10.95.102.25410.95.102.255
10410.95.103.0/2410.95.103.1 – 10.95.103.25410.95.103.255
10510.95.104.0/2410.95.104.1 – 10.95.104.25410.95.104.255
10610.95.105.0/2410.95.105.1 – 10.95.105.25410.95.105.255
10710.95.106.0/2410.95.106.1 – 10.95.106.25410.95.106.255
10810.95.107.0/2410.95.107.1 – 10.95.107.25410.95.107.255
10910.95.108.0/2410.95.108.1 – 10.95.108.25410.95.108.255
11010.95.109.0/2410.95.109.1 – 10.95.109.25410.95.109.255
11110.95.110.0/2410.95.110.1 – 10.95.110.25410.95.110.255
11210.95.111.0/2410.95.111.1 – 10.95.111.25410.95.111.255
11310.95.112.0/2410.95.112.1 – 10.95.112.25410.95.112.255
11410.95.113.0/2410.95.113.1 – 10.95.113.25410.95.113.255
11510.95.114.0/2410.95.114.1 – 10.95.114.25410.95.114.255
11610.95.115.0/2410.95.115.1 – 10.95.115.25410.95.115.255
11710.95.116.0/2410.95.116.1 – 10.95.116.25410.95.116.255
11810.95.117.0/2410.95.117.1 – 10.95.117.25410.95.117.255
11910.95.118.0/2410.95.118.1 – 10.95.118.25410.95.118.255
12010.95.119.0/2410.95.119.1 – 10.95.119.25410.95.119.255
12110.95.120.0/2410.95.120.1 – 10.95.120.25410.95.120.255
12210.95.121.0/2410.95.121.1 – 10.95.121.25410.95.121.255
12310.95.122.0/2410.95.122.1 – 10.95.122.25410.95.122.255
12410.95.123.0/2410.95.123.1 – 10.95.123.25410.95.123.255
12510.95.124.0/2410.95.124.1 – 10.95.124.25410.95.124.255
12610.95.125.0/2410.95.125.1 – 10.95.125.25410.95.125.255
12710.95.126.0/2410.95.126.1 – 10.95.126.25410.95.126.255
12810.95.127.0/2410.95.127.1 – 10.95.127.25410.95.127.255
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 →