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)10.232.252.0/25
network10.232.252.0/25
broadcast10.232.252.127
first host10.232.252.1
last host10.232.252.126
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.232.252.0/25
address00001010.11101000.11111100.00000000
subnet mask11111111.11111111.11111111.10000000
network00001010.11101000.11111100.00000000
broadcast00001010.11101000.11111100.01111111
green = network part, grey = host part
hex0x0ae8fc00
decimal183041024
reverse dns0.252.232.10.in-addr.arpa
ipv4-mapped::ffff:ae8:fc00

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.232.252.0/3210.232.252.0 – 10.232.252.010.232.252.0
210.232.252.1/3210.232.252.1 – 10.232.252.110.232.252.1
310.232.252.2/3210.232.252.2 – 10.232.252.210.232.252.2
410.232.252.3/3210.232.252.3 – 10.232.252.310.232.252.3
510.232.252.4/3210.232.252.4 – 10.232.252.410.232.252.4
610.232.252.5/3210.232.252.5 – 10.232.252.510.232.252.5
710.232.252.6/3210.232.252.6 – 10.232.252.610.232.252.6
810.232.252.7/3210.232.252.7 – 10.232.252.710.232.252.7
910.232.252.8/3210.232.252.8 – 10.232.252.810.232.252.8
1010.232.252.9/3210.232.252.9 – 10.232.252.910.232.252.9
1110.232.252.10/3210.232.252.10 – 10.232.252.1010.232.252.10
1210.232.252.11/3210.232.252.11 – 10.232.252.1110.232.252.11
1310.232.252.12/3210.232.252.12 – 10.232.252.1210.232.252.12
1410.232.252.13/3210.232.252.13 – 10.232.252.1310.232.252.13
1510.232.252.14/3210.232.252.14 – 10.232.252.1410.232.252.14
1610.232.252.15/3210.232.252.15 – 10.232.252.1510.232.252.15
1710.232.252.16/3210.232.252.16 – 10.232.252.1610.232.252.16
1810.232.252.17/3210.232.252.17 – 10.232.252.1710.232.252.17
1910.232.252.18/3210.232.252.18 – 10.232.252.1810.232.252.18
2010.232.252.19/3210.232.252.19 – 10.232.252.1910.232.252.19
2110.232.252.20/3210.232.252.20 – 10.232.252.2010.232.252.20
2210.232.252.21/3210.232.252.21 – 10.232.252.2110.232.252.21
2310.232.252.22/3210.232.252.22 – 10.232.252.2210.232.252.22
2410.232.252.23/3210.232.252.23 – 10.232.252.2310.232.252.23
2510.232.252.24/3210.232.252.24 – 10.232.252.2410.232.252.24
2610.232.252.25/3210.232.252.25 – 10.232.252.2510.232.252.25
2710.232.252.26/3210.232.252.26 – 10.232.252.2610.232.252.26
2810.232.252.27/3210.232.252.27 – 10.232.252.2710.232.252.27
2910.232.252.28/3210.232.252.28 – 10.232.252.2810.232.252.28
3010.232.252.29/3210.232.252.29 – 10.232.252.2910.232.252.29
3110.232.252.30/3210.232.252.30 – 10.232.252.3010.232.252.30
3210.232.252.31/3210.232.252.31 – 10.232.252.3110.232.252.31
3310.232.252.32/3210.232.252.32 – 10.232.252.3210.232.252.32
3410.232.252.33/3210.232.252.33 – 10.232.252.3310.232.252.33
3510.232.252.34/3210.232.252.34 – 10.232.252.3410.232.252.34
3610.232.252.35/3210.232.252.35 – 10.232.252.3510.232.252.35
3710.232.252.36/3210.232.252.36 – 10.232.252.3610.232.252.36
3810.232.252.37/3210.232.252.37 – 10.232.252.3710.232.252.37
3910.232.252.38/3210.232.252.38 – 10.232.252.3810.232.252.38
4010.232.252.39/3210.232.252.39 – 10.232.252.3910.232.252.39
4110.232.252.40/3210.232.252.40 – 10.232.252.4010.232.252.40
4210.232.252.41/3210.232.252.41 – 10.232.252.4110.232.252.41
4310.232.252.42/3210.232.252.42 – 10.232.252.4210.232.252.42
4410.232.252.43/3210.232.252.43 – 10.232.252.4310.232.252.43
4510.232.252.44/3210.232.252.44 – 10.232.252.4410.232.252.44
4610.232.252.45/3210.232.252.45 – 10.232.252.4510.232.252.45
4710.232.252.46/3210.232.252.46 – 10.232.252.4610.232.252.46
4810.232.252.47/3210.232.252.47 – 10.232.252.4710.232.252.47
4910.232.252.48/3210.232.252.48 – 10.232.252.4810.232.252.48
5010.232.252.49/3210.232.252.49 – 10.232.252.4910.232.252.49
5110.232.252.50/3210.232.252.50 – 10.232.252.5010.232.252.50
5210.232.252.51/3210.232.252.51 – 10.232.252.5110.232.252.51
5310.232.252.52/3210.232.252.52 – 10.232.252.5210.232.252.52
5410.232.252.53/3210.232.252.53 – 10.232.252.5310.232.252.53
5510.232.252.54/3210.232.252.54 – 10.232.252.5410.232.252.54
5610.232.252.55/3210.232.252.55 – 10.232.252.5510.232.252.55
5710.232.252.56/3210.232.252.56 – 10.232.252.5610.232.252.56
5810.232.252.57/3210.232.252.57 – 10.232.252.5710.232.252.57
5910.232.252.58/3210.232.252.58 – 10.232.252.5810.232.252.58
6010.232.252.59/3210.232.252.59 – 10.232.252.5910.232.252.59
6110.232.252.60/3210.232.252.60 – 10.232.252.6010.232.252.60
6210.232.252.61/3210.232.252.61 – 10.232.252.6110.232.252.61
6310.232.252.62/3210.232.252.62 – 10.232.252.6210.232.252.62
6410.232.252.63/3210.232.252.63 – 10.232.252.6310.232.252.63
6510.232.252.64/3210.232.252.64 – 10.232.252.6410.232.252.64
6610.232.252.65/3210.232.252.65 – 10.232.252.6510.232.252.65
6710.232.252.66/3210.232.252.66 – 10.232.252.6610.232.252.66
6810.232.252.67/3210.232.252.67 – 10.232.252.6710.232.252.67
6910.232.252.68/3210.232.252.68 – 10.232.252.6810.232.252.68
7010.232.252.69/3210.232.252.69 – 10.232.252.6910.232.252.69
7110.232.252.70/3210.232.252.70 – 10.232.252.7010.232.252.70
7210.232.252.71/3210.232.252.71 – 10.232.252.7110.232.252.71
7310.232.252.72/3210.232.252.72 – 10.232.252.7210.232.252.72
7410.232.252.73/3210.232.252.73 – 10.232.252.7310.232.252.73
7510.232.252.74/3210.232.252.74 – 10.232.252.7410.232.252.74
7610.232.252.75/3210.232.252.75 – 10.232.252.7510.232.252.75
7710.232.252.76/3210.232.252.76 – 10.232.252.7610.232.252.76
7810.232.252.77/3210.232.252.77 – 10.232.252.7710.232.252.77
7910.232.252.78/3210.232.252.78 – 10.232.252.7810.232.252.78
8010.232.252.79/3210.232.252.79 – 10.232.252.7910.232.252.79
8110.232.252.80/3210.232.252.80 – 10.232.252.8010.232.252.80
8210.232.252.81/3210.232.252.81 – 10.232.252.8110.232.252.81
8310.232.252.82/3210.232.252.82 – 10.232.252.8210.232.252.82
8410.232.252.83/3210.232.252.83 – 10.232.252.8310.232.252.83
8510.232.252.84/3210.232.252.84 – 10.232.252.8410.232.252.84
8610.232.252.85/3210.232.252.85 – 10.232.252.8510.232.252.85
8710.232.252.86/3210.232.252.86 – 10.232.252.8610.232.252.86
8810.232.252.87/3210.232.252.87 – 10.232.252.8710.232.252.87
8910.232.252.88/3210.232.252.88 – 10.232.252.8810.232.252.88
9010.232.252.89/3210.232.252.89 – 10.232.252.8910.232.252.89
9110.232.252.90/3210.232.252.90 – 10.232.252.9010.232.252.90
9210.232.252.91/3210.232.252.91 – 10.232.252.9110.232.252.91
9310.232.252.92/3210.232.252.92 – 10.232.252.9210.232.252.92
9410.232.252.93/3210.232.252.93 – 10.232.252.9310.232.252.93
9510.232.252.94/3210.232.252.94 – 10.232.252.9410.232.252.94
9610.232.252.95/3210.232.252.95 – 10.232.252.9510.232.252.95
9710.232.252.96/3210.232.252.96 – 10.232.252.9610.232.252.96
9810.232.252.97/3210.232.252.97 – 10.232.252.9710.232.252.97
9910.232.252.98/3210.232.252.98 – 10.232.252.9810.232.252.98
10010.232.252.99/3210.232.252.99 – 10.232.252.9910.232.252.99
10110.232.252.100/3210.232.252.100 – 10.232.252.10010.232.252.100
10210.232.252.101/3210.232.252.101 – 10.232.252.10110.232.252.101
10310.232.252.102/3210.232.252.102 – 10.232.252.10210.232.252.102
10410.232.252.103/3210.232.252.103 – 10.232.252.10310.232.252.103
10510.232.252.104/3210.232.252.104 – 10.232.252.10410.232.252.104
10610.232.252.105/3210.232.252.105 – 10.232.252.10510.232.252.105
10710.232.252.106/3210.232.252.106 – 10.232.252.10610.232.252.106
10810.232.252.107/3210.232.252.107 – 10.232.252.10710.232.252.107
10910.232.252.108/3210.232.252.108 – 10.232.252.10810.232.252.108
11010.232.252.109/3210.232.252.109 – 10.232.252.10910.232.252.109
11110.232.252.110/3210.232.252.110 – 10.232.252.11010.232.252.110
11210.232.252.111/3210.232.252.111 – 10.232.252.11110.232.252.111
11310.232.252.112/3210.232.252.112 – 10.232.252.11210.232.252.112
11410.232.252.113/3210.232.252.113 – 10.232.252.11310.232.252.113
11510.232.252.114/3210.232.252.114 – 10.232.252.11410.232.252.114
11610.232.252.115/3210.232.252.115 – 10.232.252.11510.232.252.115
11710.232.252.116/3210.232.252.116 – 10.232.252.11610.232.252.116
11810.232.252.117/3210.232.252.117 – 10.232.252.11710.232.252.117
11910.232.252.118/3210.232.252.118 – 10.232.252.11810.232.252.118
12010.232.252.119/3210.232.252.119 – 10.232.252.11910.232.252.119
12110.232.252.120/3210.232.252.120 – 10.232.252.12010.232.252.120
12210.232.252.121/3210.232.252.121 – 10.232.252.12110.232.252.121
12310.232.252.122/3210.232.252.122 – 10.232.252.12210.232.252.122
12410.232.252.123/3210.232.252.123 – 10.232.252.12310.232.252.123
12510.232.252.124/3210.232.252.124 – 10.232.252.12410.232.252.124
12610.232.252.125/3210.232.252.125 – 10.232.252.12510.232.252.125
12710.232.252.126/3210.232.252.126 – 10.232.252.12610.232.252.126
12810.232.252.127/3210.232.252.127 – 10.232.252.12710.232.252.127
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 →