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)10.83.41.0/25
network10.83.41.0/25
broadcast10.83.41.127
first host10.83.41.1
last host10.83.41.126
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.83.41.0/25
address00001010.01010011.00101001.00000000
subnet mask11111111.11111111.11111111.10000000
network00001010.01010011.00101001.00000000
broadcast00001010.01010011.00101001.01111111
green = network part, grey = host part
hex0x0a532900
decimal173222144
reverse dns0.41.83.10.in-addr.arpa
ipv4-mapped::ffff:a53:2900

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.83.41.0/3210.83.41.0 – 10.83.41.010.83.41.0
210.83.41.1/3210.83.41.1 – 10.83.41.110.83.41.1
310.83.41.2/3210.83.41.2 – 10.83.41.210.83.41.2
410.83.41.3/3210.83.41.3 – 10.83.41.310.83.41.3
510.83.41.4/3210.83.41.4 – 10.83.41.410.83.41.4
610.83.41.5/3210.83.41.5 – 10.83.41.510.83.41.5
710.83.41.6/3210.83.41.6 – 10.83.41.610.83.41.6
810.83.41.7/3210.83.41.7 – 10.83.41.710.83.41.7
910.83.41.8/3210.83.41.8 – 10.83.41.810.83.41.8
1010.83.41.9/3210.83.41.9 – 10.83.41.910.83.41.9
1110.83.41.10/3210.83.41.10 – 10.83.41.1010.83.41.10
1210.83.41.11/3210.83.41.11 – 10.83.41.1110.83.41.11
1310.83.41.12/3210.83.41.12 – 10.83.41.1210.83.41.12
1410.83.41.13/3210.83.41.13 – 10.83.41.1310.83.41.13
1510.83.41.14/3210.83.41.14 – 10.83.41.1410.83.41.14
1610.83.41.15/3210.83.41.15 – 10.83.41.1510.83.41.15
1710.83.41.16/3210.83.41.16 – 10.83.41.1610.83.41.16
1810.83.41.17/3210.83.41.17 – 10.83.41.1710.83.41.17
1910.83.41.18/3210.83.41.18 – 10.83.41.1810.83.41.18
2010.83.41.19/3210.83.41.19 – 10.83.41.1910.83.41.19
2110.83.41.20/3210.83.41.20 – 10.83.41.2010.83.41.20
2210.83.41.21/3210.83.41.21 – 10.83.41.2110.83.41.21
2310.83.41.22/3210.83.41.22 – 10.83.41.2210.83.41.22
2410.83.41.23/3210.83.41.23 – 10.83.41.2310.83.41.23
2510.83.41.24/3210.83.41.24 – 10.83.41.2410.83.41.24
2610.83.41.25/3210.83.41.25 – 10.83.41.2510.83.41.25
2710.83.41.26/3210.83.41.26 – 10.83.41.2610.83.41.26
2810.83.41.27/3210.83.41.27 – 10.83.41.2710.83.41.27
2910.83.41.28/3210.83.41.28 – 10.83.41.2810.83.41.28
3010.83.41.29/3210.83.41.29 – 10.83.41.2910.83.41.29
3110.83.41.30/3210.83.41.30 – 10.83.41.3010.83.41.30
3210.83.41.31/3210.83.41.31 – 10.83.41.3110.83.41.31
3310.83.41.32/3210.83.41.32 – 10.83.41.3210.83.41.32
3410.83.41.33/3210.83.41.33 – 10.83.41.3310.83.41.33
3510.83.41.34/3210.83.41.34 – 10.83.41.3410.83.41.34
3610.83.41.35/3210.83.41.35 – 10.83.41.3510.83.41.35
3710.83.41.36/3210.83.41.36 – 10.83.41.3610.83.41.36
3810.83.41.37/3210.83.41.37 – 10.83.41.3710.83.41.37
3910.83.41.38/3210.83.41.38 – 10.83.41.3810.83.41.38
4010.83.41.39/3210.83.41.39 – 10.83.41.3910.83.41.39
4110.83.41.40/3210.83.41.40 – 10.83.41.4010.83.41.40
4210.83.41.41/3210.83.41.41 – 10.83.41.4110.83.41.41
4310.83.41.42/3210.83.41.42 – 10.83.41.4210.83.41.42
4410.83.41.43/3210.83.41.43 – 10.83.41.4310.83.41.43
4510.83.41.44/3210.83.41.44 – 10.83.41.4410.83.41.44
4610.83.41.45/3210.83.41.45 – 10.83.41.4510.83.41.45
4710.83.41.46/3210.83.41.46 – 10.83.41.4610.83.41.46
4810.83.41.47/3210.83.41.47 – 10.83.41.4710.83.41.47
4910.83.41.48/3210.83.41.48 – 10.83.41.4810.83.41.48
5010.83.41.49/3210.83.41.49 – 10.83.41.4910.83.41.49
5110.83.41.50/3210.83.41.50 – 10.83.41.5010.83.41.50
5210.83.41.51/3210.83.41.51 – 10.83.41.5110.83.41.51
5310.83.41.52/3210.83.41.52 – 10.83.41.5210.83.41.52
5410.83.41.53/3210.83.41.53 – 10.83.41.5310.83.41.53
5510.83.41.54/3210.83.41.54 – 10.83.41.5410.83.41.54
5610.83.41.55/3210.83.41.55 – 10.83.41.5510.83.41.55
5710.83.41.56/3210.83.41.56 – 10.83.41.5610.83.41.56
5810.83.41.57/3210.83.41.57 – 10.83.41.5710.83.41.57
5910.83.41.58/3210.83.41.58 – 10.83.41.5810.83.41.58
6010.83.41.59/3210.83.41.59 – 10.83.41.5910.83.41.59
6110.83.41.60/3210.83.41.60 – 10.83.41.6010.83.41.60
6210.83.41.61/3210.83.41.61 – 10.83.41.6110.83.41.61
6310.83.41.62/3210.83.41.62 – 10.83.41.6210.83.41.62
6410.83.41.63/3210.83.41.63 – 10.83.41.6310.83.41.63
6510.83.41.64/3210.83.41.64 – 10.83.41.6410.83.41.64
6610.83.41.65/3210.83.41.65 – 10.83.41.6510.83.41.65
6710.83.41.66/3210.83.41.66 – 10.83.41.6610.83.41.66
6810.83.41.67/3210.83.41.67 – 10.83.41.6710.83.41.67
6910.83.41.68/3210.83.41.68 – 10.83.41.6810.83.41.68
7010.83.41.69/3210.83.41.69 – 10.83.41.6910.83.41.69
7110.83.41.70/3210.83.41.70 – 10.83.41.7010.83.41.70
7210.83.41.71/3210.83.41.71 – 10.83.41.7110.83.41.71
7310.83.41.72/3210.83.41.72 – 10.83.41.7210.83.41.72
7410.83.41.73/3210.83.41.73 – 10.83.41.7310.83.41.73
7510.83.41.74/3210.83.41.74 – 10.83.41.7410.83.41.74
7610.83.41.75/3210.83.41.75 – 10.83.41.7510.83.41.75
7710.83.41.76/3210.83.41.76 – 10.83.41.7610.83.41.76
7810.83.41.77/3210.83.41.77 – 10.83.41.7710.83.41.77
7910.83.41.78/3210.83.41.78 – 10.83.41.7810.83.41.78
8010.83.41.79/3210.83.41.79 – 10.83.41.7910.83.41.79
8110.83.41.80/3210.83.41.80 – 10.83.41.8010.83.41.80
8210.83.41.81/3210.83.41.81 – 10.83.41.8110.83.41.81
8310.83.41.82/3210.83.41.82 – 10.83.41.8210.83.41.82
8410.83.41.83/3210.83.41.83 – 10.83.41.8310.83.41.83
8510.83.41.84/3210.83.41.84 – 10.83.41.8410.83.41.84
8610.83.41.85/3210.83.41.85 – 10.83.41.8510.83.41.85
8710.83.41.86/3210.83.41.86 – 10.83.41.8610.83.41.86
8810.83.41.87/3210.83.41.87 – 10.83.41.8710.83.41.87
8910.83.41.88/3210.83.41.88 – 10.83.41.8810.83.41.88
9010.83.41.89/3210.83.41.89 – 10.83.41.8910.83.41.89
9110.83.41.90/3210.83.41.90 – 10.83.41.9010.83.41.90
9210.83.41.91/3210.83.41.91 – 10.83.41.9110.83.41.91
9310.83.41.92/3210.83.41.92 – 10.83.41.9210.83.41.92
9410.83.41.93/3210.83.41.93 – 10.83.41.9310.83.41.93
9510.83.41.94/3210.83.41.94 – 10.83.41.9410.83.41.94
9610.83.41.95/3210.83.41.95 – 10.83.41.9510.83.41.95
9710.83.41.96/3210.83.41.96 – 10.83.41.9610.83.41.96
9810.83.41.97/3210.83.41.97 – 10.83.41.9710.83.41.97
9910.83.41.98/3210.83.41.98 – 10.83.41.9810.83.41.98
10010.83.41.99/3210.83.41.99 – 10.83.41.9910.83.41.99
10110.83.41.100/3210.83.41.100 – 10.83.41.10010.83.41.100
10210.83.41.101/3210.83.41.101 – 10.83.41.10110.83.41.101
10310.83.41.102/3210.83.41.102 – 10.83.41.10210.83.41.102
10410.83.41.103/3210.83.41.103 – 10.83.41.10310.83.41.103
10510.83.41.104/3210.83.41.104 – 10.83.41.10410.83.41.104
10610.83.41.105/3210.83.41.105 – 10.83.41.10510.83.41.105
10710.83.41.106/3210.83.41.106 – 10.83.41.10610.83.41.106
10810.83.41.107/3210.83.41.107 – 10.83.41.10710.83.41.107
10910.83.41.108/3210.83.41.108 – 10.83.41.10810.83.41.108
11010.83.41.109/3210.83.41.109 – 10.83.41.10910.83.41.109
11110.83.41.110/3210.83.41.110 – 10.83.41.11010.83.41.110
11210.83.41.111/3210.83.41.111 – 10.83.41.11110.83.41.111
11310.83.41.112/3210.83.41.112 – 10.83.41.11210.83.41.112
11410.83.41.113/3210.83.41.113 – 10.83.41.11310.83.41.113
11510.83.41.114/3210.83.41.114 – 10.83.41.11410.83.41.114
11610.83.41.115/3210.83.41.115 – 10.83.41.11510.83.41.115
11710.83.41.116/3210.83.41.116 – 10.83.41.11610.83.41.116
11810.83.41.117/3210.83.41.117 – 10.83.41.11710.83.41.117
11910.83.41.118/3210.83.41.118 – 10.83.41.11810.83.41.118
12010.83.41.119/3210.83.41.119 – 10.83.41.11910.83.41.119
12110.83.41.120/3210.83.41.120 – 10.83.41.12010.83.41.120
12210.83.41.121/3210.83.41.121 – 10.83.41.12110.83.41.121
12310.83.41.122/3210.83.41.122 – 10.83.41.12210.83.41.122
12410.83.41.123/3210.83.41.123 – 10.83.41.12310.83.41.123
12510.83.41.124/3210.83.41.124 – 10.83.41.12410.83.41.124
12610.83.41.125/3210.83.41.125 – 10.83.41.12510.83.41.125
12710.83.41.126/3210.83.41.126 – 10.83.41.12610.83.41.126
12810.83.41.127/3210.83.41.127 – 10.83.41.12710.83.41.127
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 →