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)10.232.159.0/25
network10.232.159.0/25
broadcast10.232.159.127
first host10.232.159.1
last host10.232.159.126
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.232.159.0/25
address00001010.11101000.10011111.00000000
subnet mask11111111.11111111.11111111.10000000
network00001010.11101000.10011111.00000000
broadcast00001010.11101000.10011111.01111111
green = network part, grey = host part
hex0x0ae89f00
decimal183017216
reverse dns0.159.232.10.in-addr.arpa
ipv4-mapped::ffff:ae8:9f00

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.232.159.0/3210.232.159.0 – 10.232.159.010.232.159.0
210.232.159.1/3210.232.159.1 – 10.232.159.110.232.159.1
310.232.159.2/3210.232.159.2 – 10.232.159.210.232.159.2
410.232.159.3/3210.232.159.3 – 10.232.159.310.232.159.3
510.232.159.4/3210.232.159.4 – 10.232.159.410.232.159.4
610.232.159.5/3210.232.159.5 – 10.232.159.510.232.159.5
710.232.159.6/3210.232.159.6 – 10.232.159.610.232.159.6
810.232.159.7/3210.232.159.7 – 10.232.159.710.232.159.7
910.232.159.8/3210.232.159.8 – 10.232.159.810.232.159.8
1010.232.159.9/3210.232.159.9 – 10.232.159.910.232.159.9
1110.232.159.10/3210.232.159.10 – 10.232.159.1010.232.159.10
1210.232.159.11/3210.232.159.11 – 10.232.159.1110.232.159.11
1310.232.159.12/3210.232.159.12 – 10.232.159.1210.232.159.12
1410.232.159.13/3210.232.159.13 – 10.232.159.1310.232.159.13
1510.232.159.14/3210.232.159.14 – 10.232.159.1410.232.159.14
1610.232.159.15/3210.232.159.15 – 10.232.159.1510.232.159.15
1710.232.159.16/3210.232.159.16 – 10.232.159.1610.232.159.16
1810.232.159.17/3210.232.159.17 – 10.232.159.1710.232.159.17
1910.232.159.18/3210.232.159.18 – 10.232.159.1810.232.159.18
2010.232.159.19/3210.232.159.19 – 10.232.159.1910.232.159.19
2110.232.159.20/3210.232.159.20 – 10.232.159.2010.232.159.20
2210.232.159.21/3210.232.159.21 – 10.232.159.2110.232.159.21
2310.232.159.22/3210.232.159.22 – 10.232.159.2210.232.159.22
2410.232.159.23/3210.232.159.23 – 10.232.159.2310.232.159.23
2510.232.159.24/3210.232.159.24 – 10.232.159.2410.232.159.24
2610.232.159.25/3210.232.159.25 – 10.232.159.2510.232.159.25
2710.232.159.26/3210.232.159.26 – 10.232.159.2610.232.159.26
2810.232.159.27/3210.232.159.27 – 10.232.159.2710.232.159.27
2910.232.159.28/3210.232.159.28 – 10.232.159.2810.232.159.28
3010.232.159.29/3210.232.159.29 – 10.232.159.2910.232.159.29
3110.232.159.30/3210.232.159.30 – 10.232.159.3010.232.159.30
3210.232.159.31/3210.232.159.31 – 10.232.159.3110.232.159.31
3310.232.159.32/3210.232.159.32 – 10.232.159.3210.232.159.32
3410.232.159.33/3210.232.159.33 – 10.232.159.3310.232.159.33
3510.232.159.34/3210.232.159.34 – 10.232.159.3410.232.159.34
3610.232.159.35/3210.232.159.35 – 10.232.159.3510.232.159.35
3710.232.159.36/3210.232.159.36 – 10.232.159.3610.232.159.36
3810.232.159.37/3210.232.159.37 – 10.232.159.3710.232.159.37
3910.232.159.38/3210.232.159.38 – 10.232.159.3810.232.159.38
4010.232.159.39/3210.232.159.39 – 10.232.159.3910.232.159.39
4110.232.159.40/3210.232.159.40 – 10.232.159.4010.232.159.40
4210.232.159.41/3210.232.159.41 – 10.232.159.4110.232.159.41
4310.232.159.42/3210.232.159.42 – 10.232.159.4210.232.159.42
4410.232.159.43/3210.232.159.43 – 10.232.159.4310.232.159.43
4510.232.159.44/3210.232.159.44 – 10.232.159.4410.232.159.44
4610.232.159.45/3210.232.159.45 – 10.232.159.4510.232.159.45
4710.232.159.46/3210.232.159.46 – 10.232.159.4610.232.159.46
4810.232.159.47/3210.232.159.47 – 10.232.159.4710.232.159.47
4910.232.159.48/3210.232.159.48 – 10.232.159.4810.232.159.48
5010.232.159.49/3210.232.159.49 – 10.232.159.4910.232.159.49
5110.232.159.50/3210.232.159.50 – 10.232.159.5010.232.159.50
5210.232.159.51/3210.232.159.51 – 10.232.159.5110.232.159.51
5310.232.159.52/3210.232.159.52 – 10.232.159.5210.232.159.52
5410.232.159.53/3210.232.159.53 – 10.232.159.5310.232.159.53
5510.232.159.54/3210.232.159.54 – 10.232.159.5410.232.159.54
5610.232.159.55/3210.232.159.55 – 10.232.159.5510.232.159.55
5710.232.159.56/3210.232.159.56 – 10.232.159.5610.232.159.56
5810.232.159.57/3210.232.159.57 – 10.232.159.5710.232.159.57
5910.232.159.58/3210.232.159.58 – 10.232.159.5810.232.159.58
6010.232.159.59/3210.232.159.59 – 10.232.159.5910.232.159.59
6110.232.159.60/3210.232.159.60 – 10.232.159.6010.232.159.60
6210.232.159.61/3210.232.159.61 – 10.232.159.6110.232.159.61
6310.232.159.62/3210.232.159.62 – 10.232.159.6210.232.159.62
6410.232.159.63/3210.232.159.63 – 10.232.159.6310.232.159.63
6510.232.159.64/3210.232.159.64 – 10.232.159.6410.232.159.64
6610.232.159.65/3210.232.159.65 – 10.232.159.6510.232.159.65
6710.232.159.66/3210.232.159.66 – 10.232.159.6610.232.159.66
6810.232.159.67/3210.232.159.67 – 10.232.159.6710.232.159.67
6910.232.159.68/3210.232.159.68 – 10.232.159.6810.232.159.68
7010.232.159.69/3210.232.159.69 – 10.232.159.6910.232.159.69
7110.232.159.70/3210.232.159.70 – 10.232.159.7010.232.159.70
7210.232.159.71/3210.232.159.71 – 10.232.159.7110.232.159.71
7310.232.159.72/3210.232.159.72 – 10.232.159.7210.232.159.72
7410.232.159.73/3210.232.159.73 – 10.232.159.7310.232.159.73
7510.232.159.74/3210.232.159.74 – 10.232.159.7410.232.159.74
7610.232.159.75/3210.232.159.75 – 10.232.159.7510.232.159.75
7710.232.159.76/3210.232.159.76 – 10.232.159.7610.232.159.76
7810.232.159.77/3210.232.159.77 – 10.232.159.7710.232.159.77
7910.232.159.78/3210.232.159.78 – 10.232.159.7810.232.159.78
8010.232.159.79/3210.232.159.79 – 10.232.159.7910.232.159.79
8110.232.159.80/3210.232.159.80 – 10.232.159.8010.232.159.80
8210.232.159.81/3210.232.159.81 – 10.232.159.8110.232.159.81
8310.232.159.82/3210.232.159.82 – 10.232.159.8210.232.159.82
8410.232.159.83/3210.232.159.83 – 10.232.159.8310.232.159.83
8510.232.159.84/3210.232.159.84 – 10.232.159.8410.232.159.84
8610.232.159.85/3210.232.159.85 – 10.232.159.8510.232.159.85
8710.232.159.86/3210.232.159.86 – 10.232.159.8610.232.159.86
8810.232.159.87/3210.232.159.87 – 10.232.159.8710.232.159.87
8910.232.159.88/3210.232.159.88 – 10.232.159.8810.232.159.88
9010.232.159.89/3210.232.159.89 – 10.232.159.8910.232.159.89
9110.232.159.90/3210.232.159.90 – 10.232.159.9010.232.159.90
9210.232.159.91/3210.232.159.91 – 10.232.159.9110.232.159.91
9310.232.159.92/3210.232.159.92 – 10.232.159.9210.232.159.92
9410.232.159.93/3210.232.159.93 – 10.232.159.9310.232.159.93
9510.232.159.94/3210.232.159.94 – 10.232.159.9410.232.159.94
9610.232.159.95/3210.232.159.95 – 10.232.159.9510.232.159.95
9710.232.159.96/3210.232.159.96 – 10.232.159.9610.232.159.96
9810.232.159.97/3210.232.159.97 – 10.232.159.9710.232.159.97
9910.232.159.98/3210.232.159.98 – 10.232.159.9810.232.159.98
10010.232.159.99/3210.232.159.99 – 10.232.159.9910.232.159.99
10110.232.159.100/3210.232.159.100 – 10.232.159.10010.232.159.100
10210.232.159.101/3210.232.159.101 – 10.232.159.10110.232.159.101
10310.232.159.102/3210.232.159.102 – 10.232.159.10210.232.159.102
10410.232.159.103/3210.232.159.103 – 10.232.159.10310.232.159.103
10510.232.159.104/3210.232.159.104 – 10.232.159.10410.232.159.104
10610.232.159.105/3210.232.159.105 – 10.232.159.10510.232.159.105
10710.232.159.106/3210.232.159.106 – 10.232.159.10610.232.159.106
10810.232.159.107/3210.232.159.107 – 10.232.159.10710.232.159.107
10910.232.159.108/3210.232.159.108 – 10.232.159.10810.232.159.108
11010.232.159.109/3210.232.159.109 – 10.232.159.10910.232.159.109
11110.232.159.110/3210.232.159.110 – 10.232.159.11010.232.159.110
11210.232.159.111/3210.232.159.111 – 10.232.159.11110.232.159.111
11310.232.159.112/3210.232.159.112 – 10.232.159.11210.232.159.112
11410.232.159.113/3210.232.159.113 – 10.232.159.11310.232.159.113
11510.232.159.114/3210.232.159.114 – 10.232.159.11410.232.159.114
11610.232.159.115/3210.232.159.115 – 10.232.159.11510.232.159.115
11710.232.159.116/3210.232.159.116 – 10.232.159.11610.232.159.116
11810.232.159.117/3210.232.159.117 – 10.232.159.11710.232.159.117
11910.232.159.118/3210.232.159.118 – 10.232.159.11810.232.159.118
12010.232.159.119/3210.232.159.119 – 10.232.159.11910.232.159.119
12110.232.159.120/3210.232.159.120 – 10.232.159.12010.232.159.120
12210.232.159.121/3210.232.159.121 – 10.232.159.12110.232.159.121
12310.232.159.122/3210.232.159.122 – 10.232.159.12210.232.159.122
12410.232.159.123/3210.232.159.123 – 10.232.159.12310.232.159.123
12510.232.159.124/3210.232.159.124 – 10.232.159.12410.232.159.124
12610.232.159.125/3210.232.159.125 – 10.232.159.12510.232.159.125
12710.232.159.126/3210.232.159.126 – 10.232.159.12610.232.159.126
12810.232.159.127/3210.232.159.127 – 10.232.159.12710.232.159.127
01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /25
/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-
/25255.255.255.1281281261
/26255.255.255.19264622 split →
/27255.255.255.22432304 split →
/28255.255.255.24016148 split →
/29255.255.255.2488616 split →
/30255.255.255.2524232 split →
/31255.255.255.2542264 split →
/32255.255.255.25511128 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 →