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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)10.46.34.0/26
network10.46.34.0/26
broadcast10.46.34.63
first host10.46.34.1
last host10.46.34.62
subnet mask255.255.255.192
wildcard0.0.0.63
addresses64
usable hosts62
classA
ipcalc 10.46.34.0/26
address00001010.00101110.00100010.00000000
subnet mask11111111.11111111.11111111.11000000
network00001010.00101110.00100010.00000000
broadcast00001010.00101110.00100010.00111111
green = network part, grey = host part
hex0x0a2e2200
decimal170795520
reverse dns0.34.46.10.in-addr.arpa
ipv4-mapped::ffff:a2e:2200

/26 split into /32 · 64 subnets

close ×
#networkhost rangebroadcast
110.46.34.0/3210.46.34.0 – 10.46.34.010.46.34.0
210.46.34.1/3210.46.34.1 – 10.46.34.110.46.34.1
310.46.34.2/3210.46.34.2 – 10.46.34.210.46.34.2
410.46.34.3/3210.46.34.3 – 10.46.34.310.46.34.3
510.46.34.4/3210.46.34.4 – 10.46.34.410.46.34.4
610.46.34.5/3210.46.34.5 – 10.46.34.510.46.34.5
710.46.34.6/3210.46.34.6 – 10.46.34.610.46.34.6
810.46.34.7/3210.46.34.7 – 10.46.34.710.46.34.7
910.46.34.8/3210.46.34.8 – 10.46.34.810.46.34.8
1010.46.34.9/3210.46.34.9 – 10.46.34.910.46.34.9
1110.46.34.10/3210.46.34.10 – 10.46.34.1010.46.34.10
1210.46.34.11/3210.46.34.11 – 10.46.34.1110.46.34.11
1310.46.34.12/3210.46.34.12 – 10.46.34.1210.46.34.12
1410.46.34.13/3210.46.34.13 – 10.46.34.1310.46.34.13
1510.46.34.14/3210.46.34.14 – 10.46.34.1410.46.34.14
1610.46.34.15/3210.46.34.15 – 10.46.34.1510.46.34.15
1710.46.34.16/3210.46.34.16 – 10.46.34.1610.46.34.16
1810.46.34.17/3210.46.34.17 – 10.46.34.1710.46.34.17
1910.46.34.18/3210.46.34.18 – 10.46.34.1810.46.34.18
2010.46.34.19/3210.46.34.19 – 10.46.34.1910.46.34.19
2110.46.34.20/3210.46.34.20 – 10.46.34.2010.46.34.20
2210.46.34.21/3210.46.34.21 – 10.46.34.2110.46.34.21
2310.46.34.22/3210.46.34.22 – 10.46.34.2210.46.34.22
2410.46.34.23/3210.46.34.23 – 10.46.34.2310.46.34.23
2510.46.34.24/3210.46.34.24 – 10.46.34.2410.46.34.24
2610.46.34.25/3210.46.34.25 – 10.46.34.2510.46.34.25
2710.46.34.26/3210.46.34.26 – 10.46.34.2610.46.34.26
2810.46.34.27/3210.46.34.27 – 10.46.34.2710.46.34.27
2910.46.34.28/3210.46.34.28 – 10.46.34.2810.46.34.28
3010.46.34.29/3210.46.34.29 – 10.46.34.2910.46.34.29
3110.46.34.30/3210.46.34.30 – 10.46.34.3010.46.34.30
3210.46.34.31/3210.46.34.31 – 10.46.34.3110.46.34.31
3310.46.34.32/3210.46.34.32 – 10.46.34.3210.46.34.32
3410.46.34.33/3210.46.34.33 – 10.46.34.3310.46.34.33
3510.46.34.34/3210.46.34.34 – 10.46.34.3410.46.34.34
3610.46.34.35/3210.46.34.35 – 10.46.34.3510.46.34.35
3710.46.34.36/3210.46.34.36 – 10.46.34.3610.46.34.36
3810.46.34.37/3210.46.34.37 – 10.46.34.3710.46.34.37
3910.46.34.38/3210.46.34.38 – 10.46.34.3810.46.34.38
4010.46.34.39/3210.46.34.39 – 10.46.34.3910.46.34.39
4110.46.34.40/3210.46.34.40 – 10.46.34.4010.46.34.40
4210.46.34.41/3210.46.34.41 – 10.46.34.4110.46.34.41
4310.46.34.42/3210.46.34.42 – 10.46.34.4210.46.34.42
4410.46.34.43/3210.46.34.43 – 10.46.34.4310.46.34.43
4510.46.34.44/3210.46.34.44 – 10.46.34.4410.46.34.44
4610.46.34.45/3210.46.34.45 – 10.46.34.4510.46.34.45
4710.46.34.46/3210.46.34.46 – 10.46.34.4610.46.34.46
4810.46.34.47/3210.46.34.47 – 10.46.34.4710.46.34.47
4910.46.34.48/3210.46.34.48 – 10.46.34.4810.46.34.48
5010.46.34.49/3210.46.34.49 – 10.46.34.4910.46.34.49
5110.46.34.50/3210.46.34.50 – 10.46.34.5010.46.34.50
5210.46.34.51/3210.46.34.51 – 10.46.34.5110.46.34.51
5310.46.34.52/3210.46.34.52 – 10.46.34.5210.46.34.52
5410.46.34.53/3210.46.34.53 – 10.46.34.5310.46.34.53
5510.46.34.54/3210.46.34.54 – 10.46.34.5410.46.34.54
5610.46.34.55/3210.46.34.55 – 10.46.34.5510.46.34.55
5710.46.34.56/3210.46.34.56 – 10.46.34.5610.46.34.56
5810.46.34.57/3210.46.34.57 – 10.46.34.5710.46.34.57
5910.46.34.58/3210.46.34.58 – 10.46.34.5810.46.34.58
6010.46.34.59/3210.46.34.59 – 10.46.34.5910.46.34.59
6110.46.34.60/3210.46.34.60 – 10.46.34.6010.46.34.60
6210.46.34.61/3210.46.34.61 – 10.46.34.6110.46.34.61
6310.46.34.62/3210.46.34.62 – 10.46.34.6210.46.34.62
6410.46.34.63/3210.46.34.63 – 10.46.34.6310.46.34.63
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 →