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
private IP (RFC 1918)10.154.76.0/25
network10.154.76.0/25
broadcast10.154.76.127
first host10.154.76.1
last host10.154.76.126
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.154.76.0/25
address00001010.10011010.01001100.00000000
subnet mask11111111.11111111.11111111.10000000
network00001010.10011010.01001100.00000000
broadcast00001010.10011010.01001100.01111111
green = network part, grey = host part
hex0x0a9a4c00
decimal177884160
reverse dns0.76.154.10.in-addr.arpa
ipv4-mapped::ffff:a9a:4c00

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.154.76.0/3210.154.76.0 – 10.154.76.010.154.76.0
210.154.76.1/3210.154.76.1 – 10.154.76.110.154.76.1
310.154.76.2/3210.154.76.2 – 10.154.76.210.154.76.2
410.154.76.3/3210.154.76.3 – 10.154.76.310.154.76.3
510.154.76.4/3210.154.76.4 – 10.154.76.410.154.76.4
610.154.76.5/3210.154.76.5 – 10.154.76.510.154.76.5
710.154.76.6/3210.154.76.6 – 10.154.76.610.154.76.6
810.154.76.7/3210.154.76.7 – 10.154.76.710.154.76.7
910.154.76.8/3210.154.76.8 – 10.154.76.810.154.76.8
1010.154.76.9/3210.154.76.9 – 10.154.76.910.154.76.9
1110.154.76.10/3210.154.76.10 – 10.154.76.1010.154.76.10
1210.154.76.11/3210.154.76.11 – 10.154.76.1110.154.76.11
1310.154.76.12/3210.154.76.12 – 10.154.76.1210.154.76.12
1410.154.76.13/3210.154.76.13 – 10.154.76.1310.154.76.13
1510.154.76.14/3210.154.76.14 – 10.154.76.1410.154.76.14
1610.154.76.15/3210.154.76.15 – 10.154.76.1510.154.76.15
1710.154.76.16/3210.154.76.16 – 10.154.76.1610.154.76.16
1810.154.76.17/3210.154.76.17 – 10.154.76.1710.154.76.17
1910.154.76.18/3210.154.76.18 – 10.154.76.1810.154.76.18
2010.154.76.19/3210.154.76.19 – 10.154.76.1910.154.76.19
2110.154.76.20/3210.154.76.20 – 10.154.76.2010.154.76.20
2210.154.76.21/3210.154.76.21 – 10.154.76.2110.154.76.21
2310.154.76.22/3210.154.76.22 – 10.154.76.2210.154.76.22
2410.154.76.23/3210.154.76.23 – 10.154.76.2310.154.76.23
2510.154.76.24/3210.154.76.24 – 10.154.76.2410.154.76.24
2610.154.76.25/3210.154.76.25 – 10.154.76.2510.154.76.25
2710.154.76.26/3210.154.76.26 – 10.154.76.2610.154.76.26
2810.154.76.27/3210.154.76.27 – 10.154.76.2710.154.76.27
2910.154.76.28/3210.154.76.28 – 10.154.76.2810.154.76.28
3010.154.76.29/3210.154.76.29 – 10.154.76.2910.154.76.29
3110.154.76.30/3210.154.76.30 – 10.154.76.3010.154.76.30
3210.154.76.31/3210.154.76.31 – 10.154.76.3110.154.76.31
3310.154.76.32/3210.154.76.32 – 10.154.76.3210.154.76.32
3410.154.76.33/3210.154.76.33 – 10.154.76.3310.154.76.33
3510.154.76.34/3210.154.76.34 – 10.154.76.3410.154.76.34
3610.154.76.35/3210.154.76.35 – 10.154.76.3510.154.76.35
3710.154.76.36/3210.154.76.36 – 10.154.76.3610.154.76.36
3810.154.76.37/3210.154.76.37 – 10.154.76.3710.154.76.37
3910.154.76.38/3210.154.76.38 – 10.154.76.3810.154.76.38
4010.154.76.39/3210.154.76.39 – 10.154.76.3910.154.76.39
4110.154.76.40/3210.154.76.40 – 10.154.76.4010.154.76.40
4210.154.76.41/3210.154.76.41 – 10.154.76.4110.154.76.41
4310.154.76.42/3210.154.76.42 – 10.154.76.4210.154.76.42
4410.154.76.43/3210.154.76.43 – 10.154.76.4310.154.76.43
4510.154.76.44/3210.154.76.44 – 10.154.76.4410.154.76.44
4610.154.76.45/3210.154.76.45 – 10.154.76.4510.154.76.45
4710.154.76.46/3210.154.76.46 – 10.154.76.4610.154.76.46
4810.154.76.47/3210.154.76.47 – 10.154.76.4710.154.76.47
4910.154.76.48/3210.154.76.48 – 10.154.76.4810.154.76.48
5010.154.76.49/3210.154.76.49 – 10.154.76.4910.154.76.49
5110.154.76.50/3210.154.76.50 – 10.154.76.5010.154.76.50
5210.154.76.51/3210.154.76.51 – 10.154.76.5110.154.76.51
5310.154.76.52/3210.154.76.52 – 10.154.76.5210.154.76.52
5410.154.76.53/3210.154.76.53 – 10.154.76.5310.154.76.53
5510.154.76.54/3210.154.76.54 – 10.154.76.5410.154.76.54
5610.154.76.55/3210.154.76.55 – 10.154.76.5510.154.76.55
5710.154.76.56/3210.154.76.56 – 10.154.76.5610.154.76.56
5810.154.76.57/3210.154.76.57 – 10.154.76.5710.154.76.57
5910.154.76.58/3210.154.76.58 – 10.154.76.5810.154.76.58
6010.154.76.59/3210.154.76.59 – 10.154.76.5910.154.76.59
6110.154.76.60/3210.154.76.60 – 10.154.76.6010.154.76.60
6210.154.76.61/3210.154.76.61 – 10.154.76.6110.154.76.61
6310.154.76.62/3210.154.76.62 – 10.154.76.6210.154.76.62
6410.154.76.63/3210.154.76.63 – 10.154.76.6310.154.76.63
6510.154.76.64/3210.154.76.64 – 10.154.76.6410.154.76.64
6610.154.76.65/3210.154.76.65 – 10.154.76.6510.154.76.65
6710.154.76.66/3210.154.76.66 – 10.154.76.6610.154.76.66
6810.154.76.67/3210.154.76.67 – 10.154.76.6710.154.76.67
6910.154.76.68/3210.154.76.68 – 10.154.76.6810.154.76.68
7010.154.76.69/3210.154.76.69 – 10.154.76.6910.154.76.69
7110.154.76.70/3210.154.76.70 – 10.154.76.7010.154.76.70
7210.154.76.71/3210.154.76.71 – 10.154.76.7110.154.76.71
7310.154.76.72/3210.154.76.72 – 10.154.76.7210.154.76.72
7410.154.76.73/3210.154.76.73 – 10.154.76.7310.154.76.73
7510.154.76.74/3210.154.76.74 – 10.154.76.7410.154.76.74
7610.154.76.75/3210.154.76.75 – 10.154.76.7510.154.76.75
7710.154.76.76/3210.154.76.76 – 10.154.76.7610.154.76.76
7810.154.76.77/3210.154.76.77 – 10.154.76.7710.154.76.77
7910.154.76.78/3210.154.76.78 – 10.154.76.7810.154.76.78
8010.154.76.79/3210.154.76.79 – 10.154.76.7910.154.76.79
8110.154.76.80/3210.154.76.80 – 10.154.76.8010.154.76.80
8210.154.76.81/3210.154.76.81 – 10.154.76.8110.154.76.81
8310.154.76.82/3210.154.76.82 – 10.154.76.8210.154.76.82
8410.154.76.83/3210.154.76.83 – 10.154.76.8310.154.76.83
8510.154.76.84/3210.154.76.84 – 10.154.76.8410.154.76.84
8610.154.76.85/3210.154.76.85 – 10.154.76.8510.154.76.85
8710.154.76.86/3210.154.76.86 – 10.154.76.8610.154.76.86
8810.154.76.87/3210.154.76.87 – 10.154.76.8710.154.76.87
8910.154.76.88/3210.154.76.88 – 10.154.76.8810.154.76.88
9010.154.76.89/3210.154.76.89 – 10.154.76.8910.154.76.89
9110.154.76.90/3210.154.76.90 – 10.154.76.9010.154.76.90
9210.154.76.91/3210.154.76.91 – 10.154.76.9110.154.76.91
9310.154.76.92/3210.154.76.92 – 10.154.76.9210.154.76.92
9410.154.76.93/3210.154.76.93 – 10.154.76.9310.154.76.93
9510.154.76.94/3210.154.76.94 – 10.154.76.9410.154.76.94
9610.154.76.95/3210.154.76.95 – 10.154.76.9510.154.76.95
9710.154.76.96/3210.154.76.96 – 10.154.76.9610.154.76.96
9810.154.76.97/3210.154.76.97 – 10.154.76.9710.154.76.97
9910.154.76.98/3210.154.76.98 – 10.154.76.9810.154.76.98
10010.154.76.99/3210.154.76.99 – 10.154.76.9910.154.76.99
10110.154.76.100/3210.154.76.100 – 10.154.76.10010.154.76.100
10210.154.76.101/3210.154.76.101 – 10.154.76.10110.154.76.101
10310.154.76.102/3210.154.76.102 – 10.154.76.10210.154.76.102
10410.154.76.103/3210.154.76.103 – 10.154.76.10310.154.76.103
10510.154.76.104/3210.154.76.104 – 10.154.76.10410.154.76.104
10610.154.76.105/3210.154.76.105 – 10.154.76.10510.154.76.105
10710.154.76.106/3210.154.76.106 – 10.154.76.10610.154.76.106
10810.154.76.107/3210.154.76.107 – 10.154.76.10710.154.76.107
10910.154.76.108/3210.154.76.108 – 10.154.76.10810.154.76.108
11010.154.76.109/3210.154.76.109 – 10.154.76.10910.154.76.109
11110.154.76.110/3210.154.76.110 – 10.154.76.11010.154.76.110
11210.154.76.111/3210.154.76.111 – 10.154.76.11110.154.76.111
11310.154.76.112/3210.154.76.112 – 10.154.76.11210.154.76.112
11410.154.76.113/3210.154.76.113 – 10.154.76.11310.154.76.113
11510.154.76.114/3210.154.76.114 – 10.154.76.11410.154.76.114
11610.154.76.115/3210.154.76.115 – 10.154.76.11510.154.76.115
11710.154.76.116/3210.154.76.116 – 10.154.76.11610.154.76.116
11810.154.76.117/3210.154.76.117 – 10.154.76.11710.154.76.117
11910.154.76.118/3210.154.76.118 – 10.154.76.11810.154.76.118
12010.154.76.119/3210.154.76.119 – 10.154.76.11910.154.76.119
12110.154.76.120/3210.154.76.120 – 10.154.76.12010.154.76.120
12210.154.76.121/3210.154.76.121 – 10.154.76.12110.154.76.121
12310.154.76.122/3210.154.76.122 – 10.154.76.12210.154.76.122
12410.154.76.123/3210.154.76.123 – 10.154.76.12310.154.76.123
12510.154.76.124/3210.154.76.124 – 10.154.76.12410.154.76.124
12610.154.76.125/3210.154.76.125 – 10.154.76.12510.154.76.125
12710.154.76.126/3210.154.76.126 – 10.154.76.12610.154.76.126
12810.154.76.127/3210.154.76.127 – 10.154.76.12710.154.76.127
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 →