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
private IP (RFC 1918)10.167.225.0/25
network10.167.225.0/25
broadcast10.167.225.127
first host10.167.225.1
last host10.167.225.126
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.167.225.0/25
address00001010.10100111.11100001.00000000
subnet mask11111111.11111111.11111111.10000000
network00001010.10100111.11100001.00000000
broadcast00001010.10100111.11100001.01111111
green = network part, grey = host part
hex0x0aa7e100
decimal178774272
reverse dns0.225.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:e100

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.167.225.0/3210.167.225.0 – 10.167.225.010.167.225.0
210.167.225.1/3210.167.225.1 – 10.167.225.110.167.225.1
310.167.225.2/3210.167.225.2 – 10.167.225.210.167.225.2
410.167.225.3/3210.167.225.3 – 10.167.225.310.167.225.3
510.167.225.4/3210.167.225.4 – 10.167.225.410.167.225.4
610.167.225.5/3210.167.225.5 – 10.167.225.510.167.225.5
710.167.225.6/3210.167.225.6 – 10.167.225.610.167.225.6
810.167.225.7/3210.167.225.7 – 10.167.225.710.167.225.7
910.167.225.8/3210.167.225.8 – 10.167.225.810.167.225.8
1010.167.225.9/3210.167.225.9 – 10.167.225.910.167.225.9
1110.167.225.10/3210.167.225.10 – 10.167.225.1010.167.225.10
1210.167.225.11/3210.167.225.11 – 10.167.225.1110.167.225.11
1310.167.225.12/3210.167.225.12 – 10.167.225.1210.167.225.12
1410.167.225.13/3210.167.225.13 – 10.167.225.1310.167.225.13
1510.167.225.14/3210.167.225.14 – 10.167.225.1410.167.225.14
1610.167.225.15/3210.167.225.15 – 10.167.225.1510.167.225.15
1710.167.225.16/3210.167.225.16 – 10.167.225.1610.167.225.16
1810.167.225.17/3210.167.225.17 – 10.167.225.1710.167.225.17
1910.167.225.18/3210.167.225.18 – 10.167.225.1810.167.225.18
2010.167.225.19/3210.167.225.19 – 10.167.225.1910.167.225.19
2110.167.225.20/3210.167.225.20 – 10.167.225.2010.167.225.20
2210.167.225.21/3210.167.225.21 – 10.167.225.2110.167.225.21
2310.167.225.22/3210.167.225.22 – 10.167.225.2210.167.225.22
2410.167.225.23/3210.167.225.23 – 10.167.225.2310.167.225.23
2510.167.225.24/3210.167.225.24 – 10.167.225.2410.167.225.24
2610.167.225.25/3210.167.225.25 – 10.167.225.2510.167.225.25
2710.167.225.26/3210.167.225.26 – 10.167.225.2610.167.225.26
2810.167.225.27/3210.167.225.27 – 10.167.225.2710.167.225.27
2910.167.225.28/3210.167.225.28 – 10.167.225.2810.167.225.28
3010.167.225.29/3210.167.225.29 – 10.167.225.2910.167.225.29
3110.167.225.30/3210.167.225.30 – 10.167.225.3010.167.225.30
3210.167.225.31/3210.167.225.31 – 10.167.225.3110.167.225.31
3310.167.225.32/3210.167.225.32 – 10.167.225.3210.167.225.32
3410.167.225.33/3210.167.225.33 – 10.167.225.3310.167.225.33
3510.167.225.34/3210.167.225.34 – 10.167.225.3410.167.225.34
3610.167.225.35/3210.167.225.35 – 10.167.225.3510.167.225.35
3710.167.225.36/3210.167.225.36 – 10.167.225.3610.167.225.36
3810.167.225.37/3210.167.225.37 – 10.167.225.3710.167.225.37
3910.167.225.38/3210.167.225.38 – 10.167.225.3810.167.225.38
4010.167.225.39/3210.167.225.39 – 10.167.225.3910.167.225.39
4110.167.225.40/3210.167.225.40 – 10.167.225.4010.167.225.40
4210.167.225.41/3210.167.225.41 – 10.167.225.4110.167.225.41
4310.167.225.42/3210.167.225.42 – 10.167.225.4210.167.225.42
4410.167.225.43/3210.167.225.43 – 10.167.225.4310.167.225.43
4510.167.225.44/3210.167.225.44 – 10.167.225.4410.167.225.44
4610.167.225.45/3210.167.225.45 – 10.167.225.4510.167.225.45
4710.167.225.46/3210.167.225.46 – 10.167.225.4610.167.225.46
4810.167.225.47/3210.167.225.47 – 10.167.225.4710.167.225.47
4910.167.225.48/3210.167.225.48 – 10.167.225.4810.167.225.48
5010.167.225.49/3210.167.225.49 – 10.167.225.4910.167.225.49
5110.167.225.50/3210.167.225.50 – 10.167.225.5010.167.225.50
5210.167.225.51/3210.167.225.51 – 10.167.225.5110.167.225.51
5310.167.225.52/3210.167.225.52 – 10.167.225.5210.167.225.52
5410.167.225.53/3210.167.225.53 – 10.167.225.5310.167.225.53
5510.167.225.54/3210.167.225.54 – 10.167.225.5410.167.225.54
5610.167.225.55/3210.167.225.55 – 10.167.225.5510.167.225.55
5710.167.225.56/3210.167.225.56 – 10.167.225.5610.167.225.56
5810.167.225.57/3210.167.225.57 – 10.167.225.5710.167.225.57
5910.167.225.58/3210.167.225.58 – 10.167.225.5810.167.225.58
6010.167.225.59/3210.167.225.59 – 10.167.225.5910.167.225.59
6110.167.225.60/3210.167.225.60 – 10.167.225.6010.167.225.60
6210.167.225.61/3210.167.225.61 – 10.167.225.6110.167.225.61
6310.167.225.62/3210.167.225.62 – 10.167.225.6210.167.225.62
6410.167.225.63/3210.167.225.63 – 10.167.225.6310.167.225.63
6510.167.225.64/3210.167.225.64 – 10.167.225.6410.167.225.64
6610.167.225.65/3210.167.225.65 – 10.167.225.6510.167.225.65
6710.167.225.66/3210.167.225.66 – 10.167.225.6610.167.225.66
6810.167.225.67/3210.167.225.67 – 10.167.225.6710.167.225.67
6910.167.225.68/3210.167.225.68 – 10.167.225.6810.167.225.68
7010.167.225.69/3210.167.225.69 – 10.167.225.6910.167.225.69
7110.167.225.70/3210.167.225.70 – 10.167.225.7010.167.225.70
7210.167.225.71/3210.167.225.71 – 10.167.225.7110.167.225.71
7310.167.225.72/3210.167.225.72 – 10.167.225.7210.167.225.72
7410.167.225.73/3210.167.225.73 – 10.167.225.7310.167.225.73
7510.167.225.74/3210.167.225.74 – 10.167.225.7410.167.225.74
7610.167.225.75/3210.167.225.75 – 10.167.225.7510.167.225.75
7710.167.225.76/3210.167.225.76 – 10.167.225.7610.167.225.76
7810.167.225.77/3210.167.225.77 – 10.167.225.7710.167.225.77
7910.167.225.78/3210.167.225.78 – 10.167.225.7810.167.225.78
8010.167.225.79/3210.167.225.79 – 10.167.225.7910.167.225.79
8110.167.225.80/3210.167.225.80 – 10.167.225.8010.167.225.80
8210.167.225.81/3210.167.225.81 – 10.167.225.8110.167.225.81
8310.167.225.82/3210.167.225.82 – 10.167.225.8210.167.225.82
8410.167.225.83/3210.167.225.83 – 10.167.225.8310.167.225.83
8510.167.225.84/3210.167.225.84 – 10.167.225.8410.167.225.84
8610.167.225.85/3210.167.225.85 – 10.167.225.8510.167.225.85
8710.167.225.86/3210.167.225.86 – 10.167.225.8610.167.225.86
8810.167.225.87/3210.167.225.87 – 10.167.225.8710.167.225.87
8910.167.225.88/3210.167.225.88 – 10.167.225.8810.167.225.88
9010.167.225.89/3210.167.225.89 – 10.167.225.8910.167.225.89
9110.167.225.90/3210.167.225.90 – 10.167.225.9010.167.225.90
9210.167.225.91/3210.167.225.91 – 10.167.225.9110.167.225.91
9310.167.225.92/3210.167.225.92 – 10.167.225.9210.167.225.92
9410.167.225.93/3210.167.225.93 – 10.167.225.9310.167.225.93
9510.167.225.94/3210.167.225.94 – 10.167.225.9410.167.225.94
9610.167.225.95/3210.167.225.95 – 10.167.225.9510.167.225.95
9710.167.225.96/3210.167.225.96 – 10.167.225.9610.167.225.96
9810.167.225.97/3210.167.225.97 – 10.167.225.9710.167.225.97
9910.167.225.98/3210.167.225.98 – 10.167.225.9810.167.225.98
10010.167.225.99/3210.167.225.99 – 10.167.225.9910.167.225.99
10110.167.225.100/3210.167.225.100 – 10.167.225.10010.167.225.100
10210.167.225.101/3210.167.225.101 – 10.167.225.10110.167.225.101
10310.167.225.102/3210.167.225.102 – 10.167.225.10210.167.225.102
10410.167.225.103/3210.167.225.103 – 10.167.225.10310.167.225.103
10510.167.225.104/3210.167.225.104 – 10.167.225.10410.167.225.104
10610.167.225.105/3210.167.225.105 – 10.167.225.10510.167.225.105
10710.167.225.106/3210.167.225.106 – 10.167.225.10610.167.225.106
10810.167.225.107/3210.167.225.107 – 10.167.225.10710.167.225.107
10910.167.225.108/3210.167.225.108 – 10.167.225.10810.167.225.108
11010.167.225.109/3210.167.225.109 – 10.167.225.10910.167.225.109
11110.167.225.110/3210.167.225.110 – 10.167.225.11010.167.225.110
11210.167.225.111/3210.167.225.111 – 10.167.225.11110.167.225.111
11310.167.225.112/3210.167.225.112 – 10.167.225.11210.167.225.112
11410.167.225.113/3210.167.225.113 – 10.167.225.11310.167.225.113
11510.167.225.114/3210.167.225.114 – 10.167.225.11410.167.225.114
11610.167.225.115/3210.167.225.115 – 10.167.225.11510.167.225.115
11710.167.225.116/3210.167.225.116 – 10.167.225.11610.167.225.116
11810.167.225.117/3210.167.225.117 – 10.167.225.11710.167.225.117
11910.167.225.118/3210.167.225.118 – 10.167.225.11810.167.225.118
12010.167.225.119/3210.167.225.119 – 10.167.225.11910.167.225.119
12110.167.225.120/3210.167.225.120 – 10.167.225.12010.167.225.120
12210.167.225.121/3210.167.225.121 – 10.167.225.12110.167.225.121
12310.167.225.122/3210.167.225.122 – 10.167.225.12210.167.225.122
12410.167.225.123/3210.167.225.123 – 10.167.225.12310.167.225.123
12510.167.225.124/3210.167.225.124 – 10.167.225.12410.167.225.124
12610.167.225.125/3210.167.225.125 – 10.167.225.12510.167.225.125
12710.167.225.126/3210.167.225.126 – 10.167.225.12610.167.225.126
12810.167.225.127/3210.167.225.127 – 10.167.225.12710.167.225.127
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 →