ip
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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)10.48.182.0/26
network10.48.182.0/26
broadcast10.48.182.63
first host10.48.182.1
last host10.48.182.62
subnet mask255.255.255.192
wildcard0.0.0.63
addresses64
usable hosts62
classA
ipcalc 10.48.182.0/26
address00001010.00110000.10110110.00000000
subnet mask11111111.11111111.11111111.11000000
network00001010.00110000.10110110.00000000
broadcast00001010.00110000.10110110.00111111
green = network part, grey = host part
hex0x0a30b600
decimal170964480
reverse dns0.182.48.10.in-addr.arpa
ipv4-mapped::ffff:a30:b600

/26 split into /32 · 64 subnets

close ×
#networkhost rangebroadcast
110.48.182.0/3210.48.182.0 – 10.48.182.010.48.182.0
210.48.182.1/3210.48.182.1 – 10.48.182.110.48.182.1
310.48.182.2/3210.48.182.2 – 10.48.182.210.48.182.2
410.48.182.3/3210.48.182.3 – 10.48.182.310.48.182.3
510.48.182.4/3210.48.182.4 – 10.48.182.410.48.182.4
610.48.182.5/3210.48.182.5 – 10.48.182.510.48.182.5
710.48.182.6/3210.48.182.6 – 10.48.182.610.48.182.6
810.48.182.7/3210.48.182.7 – 10.48.182.710.48.182.7
910.48.182.8/3210.48.182.8 – 10.48.182.810.48.182.8
1010.48.182.9/3210.48.182.9 – 10.48.182.910.48.182.9
1110.48.182.10/3210.48.182.10 – 10.48.182.1010.48.182.10
1210.48.182.11/3210.48.182.11 – 10.48.182.1110.48.182.11
1310.48.182.12/3210.48.182.12 – 10.48.182.1210.48.182.12
1410.48.182.13/3210.48.182.13 – 10.48.182.1310.48.182.13
1510.48.182.14/3210.48.182.14 – 10.48.182.1410.48.182.14
1610.48.182.15/3210.48.182.15 – 10.48.182.1510.48.182.15
1710.48.182.16/3210.48.182.16 – 10.48.182.1610.48.182.16
1810.48.182.17/3210.48.182.17 – 10.48.182.1710.48.182.17
1910.48.182.18/3210.48.182.18 – 10.48.182.1810.48.182.18
2010.48.182.19/3210.48.182.19 – 10.48.182.1910.48.182.19
2110.48.182.20/3210.48.182.20 – 10.48.182.2010.48.182.20
2210.48.182.21/3210.48.182.21 – 10.48.182.2110.48.182.21
2310.48.182.22/3210.48.182.22 – 10.48.182.2210.48.182.22
2410.48.182.23/3210.48.182.23 – 10.48.182.2310.48.182.23
2510.48.182.24/3210.48.182.24 – 10.48.182.2410.48.182.24
2610.48.182.25/3210.48.182.25 – 10.48.182.2510.48.182.25
2710.48.182.26/3210.48.182.26 – 10.48.182.2610.48.182.26
2810.48.182.27/3210.48.182.27 – 10.48.182.2710.48.182.27
2910.48.182.28/3210.48.182.28 – 10.48.182.2810.48.182.28
3010.48.182.29/3210.48.182.29 – 10.48.182.2910.48.182.29
3110.48.182.30/3210.48.182.30 – 10.48.182.3010.48.182.30
3210.48.182.31/3210.48.182.31 – 10.48.182.3110.48.182.31
3310.48.182.32/3210.48.182.32 – 10.48.182.3210.48.182.32
3410.48.182.33/3210.48.182.33 – 10.48.182.3310.48.182.33
3510.48.182.34/3210.48.182.34 – 10.48.182.3410.48.182.34
3610.48.182.35/3210.48.182.35 – 10.48.182.3510.48.182.35
3710.48.182.36/3210.48.182.36 – 10.48.182.3610.48.182.36
3810.48.182.37/3210.48.182.37 – 10.48.182.3710.48.182.37
3910.48.182.38/3210.48.182.38 – 10.48.182.3810.48.182.38
4010.48.182.39/3210.48.182.39 – 10.48.182.3910.48.182.39
4110.48.182.40/3210.48.182.40 – 10.48.182.4010.48.182.40
4210.48.182.41/3210.48.182.41 – 10.48.182.4110.48.182.41
4310.48.182.42/3210.48.182.42 – 10.48.182.4210.48.182.42
4410.48.182.43/3210.48.182.43 – 10.48.182.4310.48.182.43
4510.48.182.44/3210.48.182.44 – 10.48.182.4410.48.182.44
4610.48.182.45/3210.48.182.45 – 10.48.182.4510.48.182.45
4710.48.182.46/3210.48.182.46 – 10.48.182.4610.48.182.46
4810.48.182.47/3210.48.182.47 – 10.48.182.4710.48.182.47
4910.48.182.48/3210.48.182.48 – 10.48.182.4810.48.182.48
5010.48.182.49/3210.48.182.49 – 10.48.182.4910.48.182.49
5110.48.182.50/3210.48.182.50 – 10.48.182.5010.48.182.50
5210.48.182.51/3210.48.182.51 – 10.48.182.5110.48.182.51
5310.48.182.52/3210.48.182.52 – 10.48.182.5210.48.182.52
5410.48.182.53/3210.48.182.53 – 10.48.182.5310.48.182.53
5510.48.182.54/3210.48.182.54 – 10.48.182.5410.48.182.54
5610.48.182.55/3210.48.182.55 – 10.48.182.5510.48.182.55
5710.48.182.56/3210.48.182.56 – 10.48.182.5610.48.182.56
5810.48.182.57/3210.48.182.57 – 10.48.182.5710.48.182.57
5910.48.182.58/3210.48.182.58 – 10.48.182.5810.48.182.58
6010.48.182.59/3210.48.182.59 – 10.48.182.5910.48.182.59
6110.48.182.60/3210.48.182.60 – 10.48.182.6010.48.182.60
6210.48.182.61/3210.48.182.61 – 10.48.182.6110.48.182.61
6310.48.182.62/3210.48.182.62 – 10.48.182.6210.48.182.62
6410.48.182.63/3210.48.182.63 – 10.48.182.6310.48.182.63
01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /26
/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-
/17255.255.128.032,76832,766-
/18255.255.192.016,38416,382-
/19255.255.224.08,1928,190-
/20255.255.240.04,0964,094-
/21255.255.248.02,0482,046-
/22255.255.252.01,0241,022-
/23255.255.254.0512510-
/24255.255.255.0256254-
/25255.255.255.128128126-
/26255.255.255.19264621
/27255.255.255.22432302 split →
/28255.255.255.24016144 split →
/29255.255.255.248868 split →
/30255.255.255.2524216 split →
/31255.255.255.2542232 split →
/32255.255.255.2551164 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 →