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)10.7.211.0/25
network10.7.211.0/25
broadcast10.7.211.127
first host10.7.211.1
last host10.7.211.126
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.7.211.0/25
address00001010.00000111.11010011.00000000
subnet mask11111111.11111111.11111111.10000000
network00001010.00000111.11010011.00000000
broadcast00001010.00000111.11010011.01111111
green = network part, grey = host part
hex0x0a07d300
decimal168284928
reverse dns0.211.7.10.in-addr.arpa
ipv4-mapped::ffff:a07:d300

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.7.211.0/3210.7.211.0 – 10.7.211.010.7.211.0
210.7.211.1/3210.7.211.1 – 10.7.211.110.7.211.1
310.7.211.2/3210.7.211.2 – 10.7.211.210.7.211.2
410.7.211.3/3210.7.211.3 – 10.7.211.310.7.211.3
510.7.211.4/3210.7.211.4 – 10.7.211.410.7.211.4
610.7.211.5/3210.7.211.5 – 10.7.211.510.7.211.5
710.7.211.6/3210.7.211.6 – 10.7.211.610.7.211.6
810.7.211.7/3210.7.211.7 – 10.7.211.710.7.211.7
910.7.211.8/3210.7.211.8 – 10.7.211.810.7.211.8
1010.7.211.9/3210.7.211.9 – 10.7.211.910.7.211.9
1110.7.211.10/3210.7.211.10 – 10.7.211.1010.7.211.10
1210.7.211.11/3210.7.211.11 – 10.7.211.1110.7.211.11
1310.7.211.12/3210.7.211.12 – 10.7.211.1210.7.211.12
1410.7.211.13/3210.7.211.13 – 10.7.211.1310.7.211.13
1510.7.211.14/3210.7.211.14 – 10.7.211.1410.7.211.14
1610.7.211.15/3210.7.211.15 – 10.7.211.1510.7.211.15
1710.7.211.16/3210.7.211.16 – 10.7.211.1610.7.211.16
1810.7.211.17/3210.7.211.17 – 10.7.211.1710.7.211.17
1910.7.211.18/3210.7.211.18 – 10.7.211.1810.7.211.18
2010.7.211.19/3210.7.211.19 – 10.7.211.1910.7.211.19
2110.7.211.20/3210.7.211.20 – 10.7.211.2010.7.211.20
2210.7.211.21/3210.7.211.21 – 10.7.211.2110.7.211.21
2310.7.211.22/3210.7.211.22 – 10.7.211.2210.7.211.22
2410.7.211.23/3210.7.211.23 – 10.7.211.2310.7.211.23
2510.7.211.24/3210.7.211.24 – 10.7.211.2410.7.211.24
2610.7.211.25/3210.7.211.25 – 10.7.211.2510.7.211.25
2710.7.211.26/3210.7.211.26 – 10.7.211.2610.7.211.26
2810.7.211.27/3210.7.211.27 – 10.7.211.2710.7.211.27
2910.7.211.28/3210.7.211.28 – 10.7.211.2810.7.211.28
3010.7.211.29/3210.7.211.29 – 10.7.211.2910.7.211.29
3110.7.211.30/3210.7.211.30 – 10.7.211.3010.7.211.30
3210.7.211.31/3210.7.211.31 – 10.7.211.3110.7.211.31
3310.7.211.32/3210.7.211.32 – 10.7.211.3210.7.211.32
3410.7.211.33/3210.7.211.33 – 10.7.211.3310.7.211.33
3510.7.211.34/3210.7.211.34 – 10.7.211.3410.7.211.34
3610.7.211.35/3210.7.211.35 – 10.7.211.3510.7.211.35
3710.7.211.36/3210.7.211.36 – 10.7.211.3610.7.211.36
3810.7.211.37/3210.7.211.37 – 10.7.211.3710.7.211.37
3910.7.211.38/3210.7.211.38 – 10.7.211.3810.7.211.38
4010.7.211.39/3210.7.211.39 – 10.7.211.3910.7.211.39
4110.7.211.40/3210.7.211.40 – 10.7.211.4010.7.211.40
4210.7.211.41/3210.7.211.41 – 10.7.211.4110.7.211.41
4310.7.211.42/3210.7.211.42 – 10.7.211.4210.7.211.42
4410.7.211.43/3210.7.211.43 – 10.7.211.4310.7.211.43
4510.7.211.44/3210.7.211.44 – 10.7.211.4410.7.211.44
4610.7.211.45/3210.7.211.45 – 10.7.211.4510.7.211.45
4710.7.211.46/3210.7.211.46 – 10.7.211.4610.7.211.46
4810.7.211.47/3210.7.211.47 – 10.7.211.4710.7.211.47
4910.7.211.48/3210.7.211.48 – 10.7.211.4810.7.211.48
5010.7.211.49/3210.7.211.49 – 10.7.211.4910.7.211.49
5110.7.211.50/3210.7.211.50 – 10.7.211.5010.7.211.50
5210.7.211.51/3210.7.211.51 – 10.7.211.5110.7.211.51
5310.7.211.52/3210.7.211.52 – 10.7.211.5210.7.211.52
5410.7.211.53/3210.7.211.53 – 10.7.211.5310.7.211.53
5510.7.211.54/3210.7.211.54 – 10.7.211.5410.7.211.54
5610.7.211.55/3210.7.211.55 – 10.7.211.5510.7.211.55
5710.7.211.56/3210.7.211.56 – 10.7.211.5610.7.211.56
5810.7.211.57/3210.7.211.57 – 10.7.211.5710.7.211.57
5910.7.211.58/3210.7.211.58 – 10.7.211.5810.7.211.58
6010.7.211.59/3210.7.211.59 – 10.7.211.5910.7.211.59
6110.7.211.60/3210.7.211.60 – 10.7.211.6010.7.211.60
6210.7.211.61/3210.7.211.61 – 10.7.211.6110.7.211.61
6310.7.211.62/3210.7.211.62 – 10.7.211.6210.7.211.62
6410.7.211.63/3210.7.211.63 – 10.7.211.6310.7.211.63
6510.7.211.64/3210.7.211.64 – 10.7.211.6410.7.211.64
6610.7.211.65/3210.7.211.65 – 10.7.211.6510.7.211.65
6710.7.211.66/3210.7.211.66 – 10.7.211.6610.7.211.66
6810.7.211.67/3210.7.211.67 – 10.7.211.6710.7.211.67
6910.7.211.68/3210.7.211.68 – 10.7.211.6810.7.211.68
7010.7.211.69/3210.7.211.69 – 10.7.211.6910.7.211.69
7110.7.211.70/3210.7.211.70 – 10.7.211.7010.7.211.70
7210.7.211.71/3210.7.211.71 – 10.7.211.7110.7.211.71
7310.7.211.72/3210.7.211.72 – 10.7.211.7210.7.211.72
7410.7.211.73/3210.7.211.73 – 10.7.211.7310.7.211.73
7510.7.211.74/3210.7.211.74 – 10.7.211.7410.7.211.74
7610.7.211.75/3210.7.211.75 – 10.7.211.7510.7.211.75
7710.7.211.76/3210.7.211.76 – 10.7.211.7610.7.211.76
7810.7.211.77/3210.7.211.77 – 10.7.211.7710.7.211.77
7910.7.211.78/3210.7.211.78 – 10.7.211.7810.7.211.78
8010.7.211.79/3210.7.211.79 – 10.7.211.7910.7.211.79
8110.7.211.80/3210.7.211.80 – 10.7.211.8010.7.211.80
8210.7.211.81/3210.7.211.81 – 10.7.211.8110.7.211.81
8310.7.211.82/3210.7.211.82 – 10.7.211.8210.7.211.82
8410.7.211.83/3210.7.211.83 – 10.7.211.8310.7.211.83
8510.7.211.84/3210.7.211.84 – 10.7.211.8410.7.211.84
8610.7.211.85/3210.7.211.85 – 10.7.211.8510.7.211.85
8710.7.211.86/3210.7.211.86 – 10.7.211.8610.7.211.86
8810.7.211.87/3210.7.211.87 – 10.7.211.8710.7.211.87
8910.7.211.88/3210.7.211.88 – 10.7.211.8810.7.211.88
9010.7.211.89/3210.7.211.89 – 10.7.211.8910.7.211.89
9110.7.211.90/3210.7.211.90 – 10.7.211.9010.7.211.90
9210.7.211.91/3210.7.211.91 – 10.7.211.9110.7.211.91
9310.7.211.92/3210.7.211.92 – 10.7.211.9210.7.211.92
9410.7.211.93/3210.7.211.93 – 10.7.211.9310.7.211.93
9510.7.211.94/3210.7.211.94 – 10.7.211.9410.7.211.94
9610.7.211.95/3210.7.211.95 – 10.7.211.9510.7.211.95
9710.7.211.96/3210.7.211.96 – 10.7.211.9610.7.211.96
9810.7.211.97/3210.7.211.97 – 10.7.211.9710.7.211.97
9910.7.211.98/3210.7.211.98 – 10.7.211.9810.7.211.98
10010.7.211.99/3210.7.211.99 – 10.7.211.9910.7.211.99
10110.7.211.100/3210.7.211.100 – 10.7.211.10010.7.211.100
10210.7.211.101/3210.7.211.101 – 10.7.211.10110.7.211.101
10310.7.211.102/3210.7.211.102 – 10.7.211.10210.7.211.102
10410.7.211.103/3210.7.211.103 – 10.7.211.10310.7.211.103
10510.7.211.104/3210.7.211.104 – 10.7.211.10410.7.211.104
10610.7.211.105/3210.7.211.105 – 10.7.211.10510.7.211.105
10710.7.211.106/3210.7.211.106 – 10.7.211.10610.7.211.106
10810.7.211.107/3210.7.211.107 – 10.7.211.10710.7.211.107
10910.7.211.108/3210.7.211.108 – 10.7.211.10810.7.211.108
11010.7.211.109/3210.7.211.109 – 10.7.211.10910.7.211.109
11110.7.211.110/3210.7.211.110 – 10.7.211.11010.7.211.110
11210.7.211.111/3210.7.211.111 – 10.7.211.11110.7.211.111
11310.7.211.112/3210.7.211.112 – 10.7.211.11210.7.211.112
11410.7.211.113/3210.7.211.113 – 10.7.211.11310.7.211.113
11510.7.211.114/3210.7.211.114 – 10.7.211.11410.7.211.114
11610.7.211.115/3210.7.211.115 – 10.7.211.11510.7.211.115
11710.7.211.116/3210.7.211.116 – 10.7.211.11610.7.211.116
11810.7.211.117/3210.7.211.117 – 10.7.211.11710.7.211.117
11910.7.211.118/3210.7.211.118 – 10.7.211.11810.7.211.118
12010.7.211.119/3210.7.211.119 – 10.7.211.11910.7.211.119
12110.7.211.120/3210.7.211.120 – 10.7.211.12010.7.211.120
12210.7.211.121/3210.7.211.121 – 10.7.211.12110.7.211.121
12310.7.211.122/3210.7.211.122 – 10.7.211.12210.7.211.122
12410.7.211.123/3210.7.211.123 – 10.7.211.12310.7.211.123
12510.7.211.124/3210.7.211.124 – 10.7.211.12410.7.211.124
12610.7.211.125/3210.7.211.125 – 10.7.211.12510.7.211.125
12710.7.211.126/3210.7.211.126 – 10.7.211.12610.7.211.126
12810.7.211.127/3210.7.211.127 – 10.7.211.12710.7.211.127
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 →