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)10.7.46.0/25
network10.7.46.0/25
broadcast10.7.46.127
first host10.7.46.1
last host10.7.46.126
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.7.46.0/25
address00001010.00000111.00101110.00000000
subnet mask11111111.11111111.11111111.10000000
network00001010.00000111.00101110.00000000
broadcast00001010.00000111.00101110.01111111
green = network part, grey = host part
hex0x0a072e00
decimal168242688
reverse dns0.46.7.10.in-addr.arpa
ipv4-mapped::ffff:a07:2e00

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.7.46.0/3210.7.46.0 – 10.7.46.010.7.46.0
210.7.46.1/3210.7.46.1 – 10.7.46.110.7.46.1
310.7.46.2/3210.7.46.2 – 10.7.46.210.7.46.2
410.7.46.3/3210.7.46.3 – 10.7.46.310.7.46.3
510.7.46.4/3210.7.46.4 – 10.7.46.410.7.46.4
610.7.46.5/3210.7.46.5 – 10.7.46.510.7.46.5
710.7.46.6/3210.7.46.6 – 10.7.46.610.7.46.6
810.7.46.7/3210.7.46.7 – 10.7.46.710.7.46.7
910.7.46.8/3210.7.46.8 – 10.7.46.810.7.46.8
1010.7.46.9/3210.7.46.9 – 10.7.46.910.7.46.9
1110.7.46.10/3210.7.46.10 – 10.7.46.1010.7.46.10
1210.7.46.11/3210.7.46.11 – 10.7.46.1110.7.46.11
1310.7.46.12/3210.7.46.12 – 10.7.46.1210.7.46.12
1410.7.46.13/3210.7.46.13 – 10.7.46.1310.7.46.13
1510.7.46.14/3210.7.46.14 – 10.7.46.1410.7.46.14
1610.7.46.15/3210.7.46.15 – 10.7.46.1510.7.46.15
1710.7.46.16/3210.7.46.16 – 10.7.46.1610.7.46.16
1810.7.46.17/3210.7.46.17 – 10.7.46.1710.7.46.17
1910.7.46.18/3210.7.46.18 – 10.7.46.1810.7.46.18
2010.7.46.19/3210.7.46.19 – 10.7.46.1910.7.46.19
2110.7.46.20/3210.7.46.20 – 10.7.46.2010.7.46.20
2210.7.46.21/3210.7.46.21 – 10.7.46.2110.7.46.21
2310.7.46.22/3210.7.46.22 – 10.7.46.2210.7.46.22
2410.7.46.23/3210.7.46.23 – 10.7.46.2310.7.46.23
2510.7.46.24/3210.7.46.24 – 10.7.46.2410.7.46.24
2610.7.46.25/3210.7.46.25 – 10.7.46.2510.7.46.25
2710.7.46.26/3210.7.46.26 – 10.7.46.2610.7.46.26
2810.7.46.27/3210.7.46.27 – 10.7.46.2710.7.46.27
2910.7.46.28/3210.7.46.28 – 10.7.46.2810.7.46.28
3010.7.46.29/3210.7.46.29 – 10.7.46.2910.7.46.29
3110.7.46.30/3210.7.46.30 – 10.7.46.3010.7.46.30
3210.7.46.31/3210.7.46.31 – 10.7.46.3110.7.46.31
3310.7.46.32/3210.7.46.32 – 10.7.46.3210.7.46.32
3410.7.46.33/3210.7.46.33 – 10.7.46.3310.7.46.33
3510.7.46.34/3210.7.46.34 – 10.7.46.3410.7.46.34
3610.7.46.35/3210.7.46.35 – 10.7.46.3510.7.46.35
3710.7.46.36/3210.7.46.36 – 10.7.46.3610.7.46.36
3810.7.46.37/3210.7.46.37 – 10.7.46.3710.7.46.37
3910.7.46.38/3210.7.46.38 – 10.7.46.3810.7.46.38
4010.7.46.39/3210.7.46.39 – 10.7.46.3910.7.46.39
4110.7.46.40/3210.7.46.40 – 10.7.46.4010.7.46.40
4210.7.46.41/3210.7.46.41 – 10.7.46.4110.7.46.41
4310.7.46.42/3210.7.46.42 – 10.7.46.4210.7.46.42
4410.7.46.43/3210.7.46.43 – 10.7.46.4310.7.46.43
4510.7.46.44/3210.7.46.44 – 10.7.46.4410.7.46.44
4610.7.46.45/3210.7.46.45 – 10.7.46.4510.7.46.45
4710.7.46.46/3210.7.46.46 – 10.7.46.4610.7.46.46
4810.7.46.47/3210.7.46.47 – 10.7.46.4710.7.46.47
4910.7.46.48/3210.7.46.48 – 10.7.46.4810.7.46.48
5010.7.46.49/3210.7.46.49 – 10.7.46.4910.7.46.49
5110.7.46.50/3210.7.46.50 – 10.7.46.5010.7.46.50
5210.7.46.51/3210.7.46.51 – 10.7.46.5110.7.46.51
5310.7.46.52/3210.7.46.52 – 10.7.46.5210.7.46.52
5410.7.46.53/3210.7.46.53 – 10.7.46.5310.7.46.53
5510.7.46.54/3210.7.46.54 – 10.7.46.5410.7.46.54
5610.7.46.55/3210.7.46.55 – 10.7.46.5510.7.46.55
5710.7.46.56/3210.7.46.56 – 10.7.46.5610.7.46.56
5810.7.46.57/3210.7.46.57 – 10.7.46.5710.7.46.57
5910.7.46.58/3210.7.46.58 – 10.7.46.5810.7.46.58
6010.7.46.59/3210.7.46.59 – 10.7.46.5910.7.46.59
6110.7.46.60/3210.7.46.60 – 10.7.46.6010.7.46.60
6210.7.46.61/3210.7.46.61 – 10.7.46.6110.7.46.61
6310.7.46.62/3210.7.46.62 – 10.7.46.6210.7.46.62
6410.7.46.63/3210.7.46.63 – 10.7.46.6310.7.46.63
6510.7.46.64/3210.7.46.64 – 10.7.46.6410.7.46.64
6610.7.46.65/3210.7.46.65 – 10.7.46.6510.7.46.65
6710.7.46.66/3210.7.46.66 – 10.7.46.6610.7.46.66
6810.7.46.67/3210.7.46.67 – 10.7.46.6710.7.46.67
6910.7.46.68/3210.7.46.68 – 10.7.46.6810.7.46.68
7010.7.46.69/3210.7.46.69 – 10.7.46.6910.7.46.69
7110.7.46.70/3210.7.46.70 – 10.7.46.7010.7.46.70
7210.7.46.71/3210.7.46.71 – 10.7.46.7110.7.46.71
7310.7.46.72/3210.7.46.72 – 10.7.46.7210.7.46.72
7410.7.46.73/3210.7.46.73 – 10.7.46.7310.7.46.73
7510.7.46.74/3210.7.46.74 – 10.7.46.7410.7.46.74
7610.7.46.75/3210.7.46.75 – 10.7.46.7510.7.46.75
7710.7.46.76/3210.7.46.76 – 10.7.46.7610.7.46.76
7810.7.46.77/3210.7.46.77 – 10.7.46.7710.7.46.77
7910.7.46.78/3210.7.46.78 – 10.7.46.7810.7.46.78
8010.7.46.79/3210.7.46.79 – 10.7.46.7910.7.46.79
8110.7.46.80/3210.7.46.80 – 10.7.46.8010.7.46.80
8210.7.46.81/3210.7.46.81 – 10.7.46.8110.7.46.81
8310.7.46.82/3210.7.46.82 – 10.7.46.8210.7.46.82
8410.7.46.83/3210.7.46.83 – 10.7.46.8310.7.46.83
8510.7.46.84/3210.7.46.84 – 10.7.46.8410.7.46.84
8610.7.46.85/3210.7.46.85 – 10.7.46.8510.7.46.85
8710.7.46.86/3210.7.46.86 – 10.7.46.8610.7.46.86
8810.7.46.87/3210.7.46.87 – 10.7.46.8710.7.46.87
8910.7.46.88/3210.7.46.88 – 10.7.46.8810.7.46.88
9010.7.46.89/3210.7.46.89 – 10.7.46.8910.7.46.89
9110.7.46.90/3210.7.46.90 – 10.7.46.9010.7.46.90
9210.7.46.91/3210.7.46.91 – 10.7.46.9110.7.46.91
9310.7.46.92/3210.7.46.92 – 10.7.46.9210.7.46.92
9410.7.46.93/3210.7.46.93 – 10.7.46.9310.7.46.93
9510.7.46.94/3210.7.46.94 – 10.7.46.9410.7.46.94
9610.7.46.95/3210.7.46.95 – 10.7.46.9510.7.46.95
9710.7.46.96/3210.7.46.96 – 10.7.46.9610.7.46.96
9810.7.46.97/3210.7.46.97 – 10.7.46.9710.7.46.97
9910.7.46.98/3210.7.46.98 – 10.7.46.9810.7.46.98
10010.7.46.99/3210.7.46.99 – 10.7.46.9910.7.46.99
10110.7.46.100/3210.7.46.100 – 10.7.46.10010.7.46.100
10210.7.46.101/3210.7.46.101 – 10.7.46.10110.7.46.101
10310.7.46.102/3210.7.46.102 – 10.7.46.10210.7.46.102
10410.7.46.103/3210.7.46.103 – 10.7.46.10310.7.46.103
10510.7.46.104/3210.7.46.104 – 10.7.46.10410.7.46.104
10610.7.46.105/3210.7.46.105 – 10.7.46.10510.7.46.105
10710.7.46.106/3210.7.46.106 – 10.7.46.10610.7.46.106
10810.7.46.107/3210.7.46.107 – 10.7.46.10710.7.46.107
10910.7.46.108/3210.7.46.108 – 10.7.46.10810.7.46.108
11010.7.46.109/3210.7.46.109 – 10.7.46.10910.7.46.109
11110.7.46.110/3210.7.46.110 – 10.7.46.11010.7.46.110
11210.7.46.111/3210.7.46.111 – 10.7.46.11110.7.46.111
11310.7.46.112/3210.7.46.112 – 10.7.46.11210.7.46.112
11410.7.46.113/3210.7.46.113 – 10.7.46.11310.7.46.113
11510.7.46.114/3210.7.46.114 – 10.7.46.11410.7.46.114
11610.7.46.115/3210.7.46.115 – 10.7.46.11510.7.46.115
11710.7.46.116/3210.7.46.116 – 10.7.46.11610.7.46.116
11810.7.46.117/3210.7.46.117 – 10.7.46.11710.7.46.117
11910.7.46.118/3210.7.46.118 – 10.7.46.11810.7.46.118
12010.7.46.119/3210.7.46.119 – 10.7.46.11910.7.46.119
12110.7.46.120/3210.7.46.120 – 10.7.46.12010.7.46.120
12210.7.46.121/3210.7.46.121 – 10.7.46.12110.7.46.121
12310.7.46.122/3210.7.46.122 – 10.7.46.12210.7.46.122
12410.7.46.123/3210.7.46.123 – 10.7.46.12310.7.46.123
12510.7.46.124/3210.7.46.124 – 10.7.46.12410.7.46.124
12610.7.46.125/3210.7.46.125 – 10.7.46.12510.7.46.125
12710.7.46.126/3210.7.46.126 – 10.7.46.12610.7.46.126
12810.7.46.127/3210.7.46.127 – 10.7.46.12710.7.46.127
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 →