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)10.2.53.0/25
network10.2.53.0/25
broadcast10.2.53.127
first host10.2.53.1
last host10.2.53.126
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.2.53.0/25
address00001010.00000010.00110101.00000000
subnet mask11111111.11111111.11111111.10000000
network00001010.00000010.00110101.00000000
broadcast00001010.00000010.00110101.01111111
green = network part, grey = host part
hex0x0a023500
decimal167916800
reverse dns0.53.2.10.in-addr.arpa
ipv4-mapped::ffff:a02:3500

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.2.53.0/3210.2.53.0 – 10.2.53.010.2.53.0
210.2.53.1/3210.2.53.1 – 10.2.53.110.2.53.1
310.2.53.2/3210.2.53.2 – 10.2.53.210.2.53.2
410.2.53.3/3210.2.53.3 – 10.2.53.310.2.53.3
510.2.53.4/3210.2.53.4 – 10.2.53.410.2.53.4
610.2.53.5/3210.2.53.5 – 10.2.53.510.2.53.5
710.2.53.6/3210.2.53.6 – 10.2.53.610.2.53.6
810.2.53.7/3210.2.53.7 – 10.2.53.710.2.53.7
910.2.53.8/3210.2.53.8 – 10.2.53.810.2.53.8
1010.2.53.9/3210.2.53.9 – 10.2.53.910.2.53.9
1110.2.53.10/3210.2.53.10 – 10.2.53.1010.2.53.10
1210.2.53.11/3210.2.53.11 – 10.2.53.1110.2.53.11
1310.2.53.12/3210.2.53.12 – 10.2.53.1210.2.53.12
1410.2.53.13/3210.2.53.13 – 10.2.53.1310.2.53.13
1510.2.53.14/3210.2.53.14 – 10.2.53.1410.2.53.14
1610.2.53.15/3210.2.53.15 – 10.2.53.1510.2.53.15
1710.2.53.16/3210.2.53.16 – 10.2.53.1610.2.53.16
1810.2.53.17/3210.2.53.17 – 10.2.53.1710.2.53.17
1910.2.53.18/3210.2.53.18 – 10.2.53.1810.2.53.18
2010.2.53.19/3210.2.53.19 – 10.2.53.1910.2.53.19
2110.2.53.20/3210.2.53.20 – 10.2.53.2010.2.53.20
2210.2.53.21/3210.2.53.21 – 10.2.53.2110.2.53.21
2310.2.53.22/3210.2.53.22 – 10.2.53.2210.2.53.22
2410.2.53.23/3210.2.53.23 – 10.2.53.2310.2.53.23
2510.2.53.24/3210.2.53.24 – 10.2.53.2410.2.53.24
2610.2.53.25/3210.2.53.25 – 10.2.53.2510.2.53.25
2710.2.53.26/3210.2.53.26 – 10.2.53.2610.2.53.26
2810.2.53.27/3210.2.53.27 – 10.2.53.2710.2.53.27
2910.2.53.28/3210.2.53.28 – 10.2.53.2810.2.53.28
3010.2.53.29/3210.2.53.29 – 10.2.53.2910.2.53.29
3110.2.53.30/3210.2.53.30 – 10.2.53.3010.2.53.30
3210.2.53.31/3210.2.53.31 – 10.2.53.3110.2.53.31
3310.2.53.32/3210.2.53.32 – 10.2.53.3210.2.53.32
3410.2.53.33/3210.2.53.33 – 10.2.53.3310.2.53.33
3510.2.53.34/3210.2.53.34 – 10.2.53.3410.2.53.34
3610.2.53.35/3210.2.53.35 – 10.2.53.3510.2.53.35
3710.2.53.36/3210.2.53.36 – 10.2.53.3610.2.53.36
3810.2.53.37/3210.2.53.37 – 10.2.53.3710.2.53.37
3910.2.53.38/3210.2.53.38 – 10.2.53.3810.2.53.38
4010.2.53.39/3210.2.53.39 – 10.2.53.3910.2.53.39
4110.2.53.40/3210.2.53.40 – 10.2.53.4010.2.53.40
4210.2.53.41/3210.2.53.41 – 10.2.53.4110.2.53.41
4310.2.53.42/3210.2.53.42 – 10.2.53.4210.2.53.42
4410.2.53.43/3210.2.53.43 – 10.2.53.4310.2.53.43
4510.2.53.44/3210.2.53.44 – 10.2.53.4410.2.53.44
4610.2.53.45/3210.2.53.45 – 10.2.53.4510.2.53.45
4710.2.53.46/3210.2.53.46 – 10.2.53.4610.2.53.46
4810.2.53.47/3210.2.53.47 – 10.2.53.4710.2.53.47
4910.2.53.48/3210.2.53.48 – 10.2.53.4810.2.53.48
5010.2.53.49/3210.2.53.49 – 10.2.53.4910.2.53.49
5110.2.53.50/3210.2.53.50 – 10.2.53.5010.2.53.50
5210.2.53.51/3210.2.53.51 – 10.2.53.5110.2.53.51
5310.2.53.52/3210.2.53.52 – 10.2.53.5210.2.53.52
5410.2.53.53/3210.2.53.53 – 10.2.53.5310.2.53.53
5510.2.53.54/3210.2.53.54 – 10.2.53.5410.2.53.54
5610.2.53.55/3210.2.53.55 – 10.2.53.5510.2.53.55
5710.2.53.56/3210.2.53.56 – 10.2.53.5610.2.53.56
5810.2.53.57/3210.2.53.57 – 10.2.53.5710.2.53.57
5910.2.53.58/3210.2.53.58 – 10.2.53.5810.2.53.58
6010.2.53.59/3210.2.53.59 – 10.2.53.5910.2.53.59
6110.2.53.60/3210.2.53.60 – 10.2.53.6010.2.53.60
6210.2.53.61/3210.2.53.61 – 10.2.53.6110.2.53.61
6310.2.53.62/3210.2.53.62 – 10.2.53.6210.2.53.62
6410.2.53.63/3210.2.53.63 – 10.2.53.6310.2.53.63
6510.2.53.64/3210.2.53.64 – 10.2.53.6410.2.53.64
6610.2.53.65/3210.2.53.65 – 10.2.53.6510.2.53.65
6710.2.53.66/3210.2.53.66 – 10.2.53.6610.2.53.66
6810.2.53.67/3210.2.53.67 – 10.2.53.6710.2.53.67
6910.2.53.68/3210.2.53.68 – 10.2.53.6810.2.53.68
7010.2.53.69/3210.2.53.69 – 10.2.53.6910.2.53.69
7110.2.53.70/3210.2.53.70 – 10.2.53.7010.2.53.70
7210.2.53.71/3210.2.53.71 – 10.2.53.7110.2.53.71
7310.2.53.72/3210.2.53.72 – 10.2.53.7210.2.53.72
7410.2.53.73/3210.2.53.73 – 10.2.53.7310.2.53.73
7510.2.53.74/3210.2.53.74 – 10.2.53.7410.2.53.74
7610.2.53.75/3210.2.53.75 – 10.2.53.7510.2.53.75
7710.2.53.76/3210.2.53.76 – 10.2.53.7610.2.53.76
7810.2.53.77/3210.2.53.77 – 10.2.53.7710.2.53.77
7910.2.53.78/3210.2.53.78 – 10.2.53.7810.2.53.78
8010.2.53.79/3210.2.53.79 – 10.2.53.7910.2.53.79
8110.2.53.80/3210.2.53.80 – 10.2.53.8010.2.53.80
8210.2.53.81/3210.2.53.81 – 10.2.53.8110.2.53.81
8310.2.53.82/3210.2.53.82 – 10.2.53.8210.2.53.82
8410.2.53.83/3210.2.53.83 – 10.2.53.8310.2.53.83
8510.2.53.84/3210.2.53.84 – 10.2.53.8410.2.53.84
8610.2.53.85/3210.2.53.85 – 10.2.53.8510.2.53.85
8710.2.53.86/3210.2.53.86 – 10.2.53.8610.2.53.86
8810.2.53.87/3210.2.53.87 – 10.2.53.8710.2.53.87
8910.2.53.88/3210.2.53.88 – 10.2.53.8810.2.53.88
9010.2.53.89/3210.2.53.89 – 10.2.53.8910.2.53.89
9110.2.53.90/3210.2.53.90 – 10.2.53.9010.2.53.90
9210.2.53.91/3210.2.53.91 – 10.2.53.9110.2.53.91
9310.2.53.92/3210.2.53.92 – 10.2.53.9210.2.53.92
9410.2.53.93/3210.2.53.93 – 10.2.53.9310.2.53.93
9510.2.53.94/3210.2.53.94 – 10.2.53.9410.2.53.94
9610.2.53.95/3210.2.53.95 – 10.2.53.9510.2.53.95
9710.2.53.96/3210.2.53.96 – 10.2.53.9610.2.53.96
9810.2.53.97/3210.2.53.97 – 10.2.53.9710.2.53.97
9910.2.53.98/3210.2.53.98 – 10.2.53.9810.2.53.98
10010.2.53.99/3210.2.53.99 – 10.2.53.9910.2.53.99
10110.2.53.100/3210.2.53.100 – 10.2.53.10010.2.53.100
10210.2.53.101/3210.2.53.101 – 10.2.53.10110.2.53.101
10310.2.53.102/3210.2.53.102 – 10.2.53.10210.2.53.102
10410.2.53.103/3210.2.53.103 – 10.2.53.10310.2.53.103
10510.2.53.104/3210.2.53.104 – 10.2.53.10410.2.53.104
10610.2.53.105/3210.2.53.105 – 10.2.53.10510.2.53.105
10710.2.53.106/3210.2.53.106 – 10.2.53.10610.2.53.106
10810.2.53.107/3210.2.53.107 – 10.2.53.10710.2.53.107
10910.2.53.108/3210.2.53.108 – 10.2.53.10810.2.53.108
11010.2.53.109/3210.2.53.109 – 10.2.53.10910.2.53.109
11110.2.53.110/3210.2.53.110 – 10.2.53.11010.2.53.110
11210.2.53.111/3210.2.53.111 – 10.2.53.11110.2.53.111
11310.2.53.112/3210.2.53.112 – 10.2.53.11210.2.53.112
11410.2.53.113/3210.2.53.113 – 10.2.53.11310.2.53.113
11510.2.53.114/3210.2.53.114 – 10.2.53.11410.2.53.114
11610.2.53.115/3210.2.53.115 – 10.2.53.11510.2.53.115
11710.2.53.116/3210.2.53.116 – 10.2.53.11610.2.53.116
11810.2.53.117/3210.2.53.117 – 10.2.53.11710.2.53.117
11910.2.53.118/3210.2.53.118 – 10.2.53.11810.2.53.118
12010.2.53.119/3210.2.53.119 – 10.2.53.11910.2.53.119
12110.2.53.120/3210.2.53.120 – 10.2.53.12010.2.53.120
12210.2.53.121/3210.2.53.121 – 10.2.53.12110.2.53.121
12310.2.53.122/3210.2.53.122 – 10.2.53.12210.2.53.122
12410.2.53.123/3210.2.53.123 – 10.2.53.12310.2.53.123
12510.2.53.124/3210.2.53.124 – 10.2.53.12410.2.53.124
12610.2.53.125/3210.2.53.125 – 10.2.53.12510.2.53.125
12710.2.53.126/3210.2.53.126 – 10.2.53.12610.2.53.126
12810.2.53.127/3210.2.53.127 – 10.2.53.12710.2.53.127
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 →