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)10.2.146.0/25
network10.2.146.0/25
broadcast10.2.146.127
first host10.2.146.1
last host10.2.146.126
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.2.146.0/25
address00001010.00000010.10010010.00000000
subnet mask11111111.11111111.11111111.10000000
network00001010.00000010.10010010.00000000
broadcast00001010.00000010.10010010.01111111
green = network part, grey = host part
hex0x0a029200
decimal167940608
reverse dns0.146.2.10.in-addr.arpa
ipv4-mapped::ffff:a02:9200

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.2.146.0/3210.2.146.0 – 10.2.146.010.2.146.0
210.2.146.1/3210.2.146.1 – 10.2.146.110.2.146.1
310.2.146.2/3210.2.146.2 – 10.2.146.210.2.146.2
410.2.146.3/3210.2.146.3 – 10.2.146.310.2.146.3
510.2.146.4/3210.2.146.4 – 10.2.146.410.2.146.4
610.2.146.5/3210.2.146.5 – 10.2.146.510.2.146.5
710.2.146.6/3210.2.146.6 – 10.2.146.610.2.146.6
810.2.146.7/3210.2.146.7 – 10.2.146.710.2.146.7
910.2.146.8/3210.2.146.8 – 10.2.146.810.2.146.8
1010.2.146.9/3210.2.146.9 – 10.2.146.910.2.146.9
1110.2.146.10/3210.2.146.10 – 10.2.146.1010.2.146.10
1210.2.146.11/3210.2.146.11 – 10.2.146.1110.2.146.11
1310.2.146.12/3210.2.146.12 – 10.2.146.1210.2.146.12
1410.2.146.13/3210.2.146.13 – 10.2.146.1310.2.146.13
1510.2.146.14/3210.2.146.14 – 10.2.146.1410.2.146.14
1610.2.146.15/3210.2.146.15 – 10.2.146.1510.2.146.15
1710.2.146.16/3210.2.146.16 – 10.2.146.1610.2.146.16
1810.2.146.17/3210.2.146.17 – 10.2.146.1710.2.146.17
1910.2.146.18/3210.2.146.18 – 10.2.146.1810.2.146.18
2010.2.146.19/3210.2.146.19 – 10.2.146.1910.2.146.19
2110.2.146.20/3210.2.146.20 – 10.2.146.2010.2.146.20
2210.2.146.21/3210.2.146.21 – 10.2.146.2110.2.146.21
2310.2.146.22/3210.2.146.22 – 10.2.146.2210.2.146.22
2410.2.146.23/3210.2.146.23 – 10.2.146.2310.2.146.23
2510.2.146.24/3210.2.146.24 – 10.2.146.2410.2.146.24
2610.2.146.25/3210.2.146.25 – 10.2.146.2510.2.146.25
2710.2.146.26/3210.2.146.26 – 10.2.146.2610.2.146.26
2810.2.146.27/3210.2.146.27 – 10.2.146.2710.2.146.27
2910.2.146.28/3210.2.146.28 – 10.2.146.2810.2.146.28
3010.2.146.29/3210.2.146.29 – 10.2.146.2910.2.146.29
3110.2.146.30/3210.2.146.30 – 10.2.146.3010.2.146.30
3210.2.146.31/3210.2.146.31 – 10.2.146.3110.2.146.31
3310.2.146.32/3210.2.146.32 – 10.2.146.3210.2.146.32
3410.2.146.33/3210.2.146.33 – 10.2.146.3310.2.146.33
3510.2.146.34/3210.2.146.34 – 10.2.146.3410.2.146.34
3610.2.146.35/3210.2.146.35 – 10.2.146.3510.2.146.35
3710.2.146.36/3210.2.146.36 – 10.2.146.3610.2.146.36
3810.2.146.37/3210.2.146.37 – 10.2.146.3710.2.146.37
3910.2.146.38/3210.2.146.38 – 10.2.146.3810.2.146.38
4010.2.146.39/3210.2.146.39 – 10.2.146.3910.2.146.39
4110.2.146.40/3210.2.146.40 – 10.2.146.4010.2.146.40
4210.2.146.41/3210.2.146.41 – 10.2.146.4110.2.146.41
4310.2.146.42/3210.2.146.42 – 10.2.146.4210.2.146.42
4410.2.146.43/3210.2.146.43 – 10.2.146.4310.2.146.43
4510.2.146.44/3210.2.146.44 – 10.2.146.4410.2.146.44
4610.2.146.45/3210.2.146.45 – 10.2.146.4510.2.146.45
4710.2.146.46/3210.2.146.46 – 10.2.146.4610.2.146.46
4810.2.146.47/3210.2.146.47 – 10.2.146.4710.2.146.47
4910.2.146.48/3210.2.146.48 – 10.2.146.4810.2.146.48
5010.2.146.49/3210.2.146.49 – 10.2.146.4910.2.146.49
5110.2.146.50/3210.2.146.50 – 10.2.146.5010.2.146.50
5210.2.146.51/3210.2.146.51 – 10.2.146.5110.2.146.51
5310.2.146.52/3210.2.146.52 – 10.2.146.5210.2.146.52
5410.2.146.53/3210.2.146.53 – 10.2.146.5310.2.146.53
5510.2.146.54/3210.2.146.54 – 10.2.146.5410.2.146.54
5610.2.146.55/3210.2.146.55 – 10.2.146.5510.2.146.55
5710.2.146.56/3210.2.146.56 – 10.2.146.5610.2.146.56
5810.2.146.57/3210.2.146.57 – 10.2.146.5710.2.146.57
5910.2.146.58/3210.2.146.58 – 10.2.146.5810.2.146.58
6010.2.146.59/3210.2.146.59 – 10.2.146.5910.2.146.59
6110.2.146.60/3210.2.146.60 – 10.2.146.6010.2.146.60
6210.2.146.61/3210.2.146.61 – 10.2.146.6110.2.146.61
6310.2.146.62/3210.2.146.62 – 10.2.146.6210.2.146.62
6410.2.146.63/3210.2.146.63 – 10.2.146.6310.2.146.63
6510.2.146.64/3210.2.146.64 – 10.2.146.6410.2.146.64
6610.2.146.65/3210.2.146.65 – 10.2.146.6510.2.146.65
6710.2.146.66/3210.2.146.66 – 10.2.146.6610.2.146.66
6810.2.146.67/3210.2.146.67 – 10.2.146.6710.2.146.67
6910.2.146.68/3210.2.146.68 – 10.2.146.6810.2.146.68
7010.2.146.69/3210.2.146.69 – 10.2.146.6910.2.146.69
7110.2.146.70/3210.2.146.70 – 10.2.146.7010.2.146.70
7210.2.146.71/3210.2.146.71 – 10.2.146.7110.2.146.71
7310.2.146.72/3210.2.146.72 – 10.2.146.7210.2.146.72
7410.2.146.73/3210.2.146.73 – 10.2.146.7310.2.146.73
7510.2.146.74/3210.2.146.74 – 10.2.146.7410.2.146.74
7610.2.146.75/3210.2.146.75 – 10.2.146.7510.2.146.75
7710.2.146.76/3210.2.146.76 – 10.2.146.7610.2.146.76
7810.2.146.77/3210.2.146.77 – 10.2.146.7710.2.146.77
7910.2.146.78/3210.2.146.78 – 10.2.146.7810.2.146.78
8010.2.146.79/3210.2.146.79 – 10.2.146.7910.2.146.79
8110.2.146.80/3210.2.146.80 – 10.2.146.8010.2.146.80
8210.2.146.81/3210.2.146.81 – 10.2.146.8110.2.146.81
8310.2.146.82/3210.2.146.82 – 10.2.146.8210.2.146.82
8410.2.146.83/3210.2.146.83 – 10.2.146.8310.2.146.83
8510.2.146.84/3210.2.146.84 – 10.2.146.8410.2.146.84
8610.2.146.85/3210.2.146.85 – 10.2.146.8510.2.146.85
8710.2.146.86/3210.2.146.86 – 10.2.146.8610.2.146.86
8810.2.146.87/3210.2.146.87 – 10.2.146.8710.2.146.87
8910.2.146.88/3210.2.146.88 – 10.2.146.8810.2.146.88
9010.2.146.89/3210.2.146.89 – 10.2.146.8910.2.146.89
9110.2.146.90/3210.2.146.90 – 10.2.146.9010.2.146.90
9210.2.146.91/3210.2.146.91 – 10.2.146.9110.2.146.91
9310.2.146.92/3210.2.146.92 – 10.2.146.9210.2.146.92
9410.2.146.93/3210.2.146.93 – 10.2.146.9310.2.146.93
9510.2.146.94/3210.2.146.94 – 10.2.146.9410.2.146.94
9610.2.146.95/3210.2.146.95 – 10.2.146.9510.2.146.95
9710.2.146.96/3210.2.146.96 – 10.2.146.9610.2.146.96
9810.2.146.97/3210.2.146.97 – 10.2.146.9710.2.146.97
9910.2.146.98/3210.2.146.98 – 10.2.146.9810.2.146.98
10010.2.146.99/3210.2.146.99 – 10.2.146.9910.2.146.99
10110.2.146.100/3210.2.146.100 – 10.2.146.10010.2.146.100
10210.2.146.101/3210.2.146.101 – 10.2.146.10110.2.146.101
10310.2.146.102/3210.2.146.102 – 10.2.146.10210.2.146.102
10410.2.146.103/3210.2.146.103 – 10.2.146.10310.2.146.103
10510.2.146.104/3210.2.146.104 – 10.2.146.10410.2.146.104
10610.2.146.105/3210.2.146.105 – 10.2.146.10510.2.146.105
10710.2.146.106/3210.2.146.106 – 10.2.146.10610.2.146.106
10810.2.146.107/3210.2.146.107 – 10.2.146.10710.2.146.107
10910.2.146.108/3210.2.146.108 – 10.2.146.10810.2.146.108
11010.2.146.109/3210.2.146.109 – 10.2.146.10910.2.146.109
11110.2.146.110/3210.2.146.110 – 10.2.146.11010.2.146.110
11210.2.146.111/3210.2.146.111 – 10.2.146.11110.2.146.111
11310.2.146.112/3210.2.146.112 – 10.2.146.11210.2.146.112
11410.2.146.113/3210.2.146.113 – 10.2.146.11310.2.146.113
11510.2.146.114/3210.2.146.114 – 10.2.146.11410.2.146.114
11610.2.146.115/3210.2.146.115 – 10.2.146.11510.2.146.115
11710.2.146.116/3210.2.146.116 – 10.2.146.11610.2.146.116
11810.2.146.117/3210.2.146.117 – 10.2.146.11710.2.146.117
11910.2.146.118/3210.2.146.118 – 10.2.146.11810.2.146.118
12010.2.146.119/3210.2.146.119 – 10.2.146.11910.2.146.119
12110.2.146.120/3210.2.146.120 – 10.2.146.12010.2.146.120
12210.2.146.121/3210.2.146.121 – 10.2.146.12110.2.146.121
12310.2.146.122/3210.2.146.122 – 10.2.146.12210.2.146.122
12410.2.146.123/3210.2.146.123 – 10.2.146.12310.2.146.123
12510.2.146.124/3210.2.146.124 – 10.2.146.12410.2.146.124
12610.2.146.125/3210.2.146.125 – 10.2.146.12510.2.146.125
12710.2.146.126/3210.2.146.126 – 10.2.146.12610.2.146.126
12810.2.146.127/3210.2.146.127 – 10.2.146.12710.2.146.127
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 →