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)10.48.97.0/25
network10.48.97.0/25
broadcast10.48.97.127
first host10.48.97.1
last host10.48.97.126
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.48.97.0/25
address00001010.00110000.01100001.00000000
subnet mask11111111.11111111.11111111.10000000
network00001010.00110000.01100001.00000000
broadcast00001010.00110000.01100001.01111111
green = network part, grey = host part
hex0x0a306100
decimal170942720
reverse dns0.97.48.10.in-addr.arpa
ipv4-mapped::ffff:a30:6100

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.48.97.0/3210.48.97.0 – 10.48.97.010.48.97.0
210.48.97.1/3210.48.97.1 – 10.48.97.110.48.97.1
310.48.97.2/3210.48.97.2 – 10.48.97.210.48.97.2
410.48.97.3/3210.48.97.3 – 10.48.97.310.48.97.3
510.48.97.4/3210.48.97.4 – 10.48.97.410.48.97.4
610.48.97.5/3210.48.97.5 – 10.48.97.510.48.97.5
710.48.97.6/3210.48.97.6 – 10.48.97.610.48.97.6
810.48.97.7/3210.48.97.7 – 10.48.97.710.48.97.7
910.48.97.8/3210.48.97.8 – 10.48.97.810.48.97.8
1010.48.97.9/3210.48.97.9 – 10.48.97.910.48.97.9
1110.48.97.10/3210.48.97.10 – 10.48.97.1010.48.97.10
1210.48.97.11/3210.48.97.11 – 10.48.97.1110.48.97.11
1310.48.97.12/3210.48.97.12 – 10.48.97.1210.48.97.12
1410.48.97.13/3210.48.97.13 – 10.48.97.1310.48.97.13
1510.48.97.14/3210.48.97.14 – 10.48.97.1410.48.97.14
1610.48.97.15/3210.48.97.15 – 10.48.97.1510.48.97.15
1710.48.97.16/3210.48.97.16 – 10.48.97.1610.48.97.16
1810.48.97.17/3210.48.97.17 – 10.48.97.1710.48.97.17
1910.48.97.18/3210.48.97.18 – 10.48.97.1810.48.97.18
2010.48.97.19/3210.48.97.19 – 10.48.97.1910.48.97.19
2110.48.97.20/3210.48.97.20 – 10.48.97.2010.48.97.20
2210.48.97.21/3210.48.97.21 – 10.48.97.2110.48.97.21
2310.48.97.22/3210.48.97.22 – 10.48.97.2210.48.97.22
2410.48.97.23/3210.48.97.23 – 10.48.97.2310.48.97.23
2510.48.97.24/3210.48.97.24 – 10.48.97.2410.48.97.24
2610.48.97.25/3210.48.97.25 – 10.48.97.2510.48.97.25
2710.48.97.26/3210.48.97.26 – 10.48.97.2610.48.97.26
2810.48.97.27/3210.48.97.27 – 10.48.97.2710.48.97.27
2910.48.97.28/3210.48.97.28 – 10.48.97.2810.48.97.28
3010.48.97.29/3210.48.97.29 – 10.48.97.2910.48.97.29
3110.48.97.30/3210.48.97.30 – 10.48.97.3010.48.97.30
3210.48.97.31/3210.48.97.31 – 10.48.97.3110.48.97.31
3310.48.97.32/3210.48.97.32 – 10.48.97.3210.48.97.32
3410.48.97.33/3210.48.97.33 – 10.48.97.3310.48.97.33
3510.48.97.34/3210.48.97.34 – 10.48.97.3410.48.97.34
3610.48.97.35/3210.48.97.35 – 10.48.97.3510.48.97.35
3710.48.97.36/3210.48.97.36 – 10.48.97.3610.48.97.36
3810.48.97.37/3210.48.97.37 – 10.48.97.3710.48.97.37
3910.48.97.38/3210.48.97.38 – 10.48.97.3810.48.97.38
4010.48.97.39/3210.48.97.39 – 10.48.97.3910.48.97.39
4110.48.97.40/3210.48.97.40 – 10.48.97.4010.48.97.40
4210.48.97.41/3210.48.97.41 – 10.48.97.4110.48.97.41
4310.48.97.42/3210.48.97.42 – 10.48.97.4210.48.97.42
4410.48.97.43/3210.48.97.43 – 10.48.97.4310.48.97.43
4510.48.97.44/3210.48.97.44 – 10.48.97.4410.48.97.44
4610.48.97.45/3210.48.97.45 – 10.48.97.4510.48.97.45
4710.48.97.46/3210.48.97.46 – 10.48.97.4610.48.97.46
4810.48.97.47/3210.48.97.47 – 10.48.97.4710.48.97.47
4910.48.97.48/3210.48.97.48 – 10.48.97.4810.48.97.48
5010.48.97.49/3210.48.97.49 – 10.48.97.4910.48.97.49
5110.48.97.50/3210.48.97.50 – 10.48.97.5010.48.97.50
5210.48.97.51/3210.48.97.51 – 10.48.97.5110.48.97.51
5310.48.97.52/3210.48.97.52 – 10.48.97.5210.48.97.52
5410.48.97.53/3210.48.97.53 – 10.48.97.5310.48.97.53
5510.48.97.54/3210.48.97.54 – 10.48.97.5410.48.97.54
5610.48.97.55/3210.48.97.55 – 10.48.97.5510.48.97.55
5710.48.97.56/3210.48.97.56 – 10.48.97.5610.48.97.56
5810.48.97.57/3210.48.97.57 – 10.48.97.5710.48.97.57
5910.48.97.58/3210.48.97.58 – 10.48.97.5810.48.97.58
6010.48.97.59/3210.48.97.59 – 10.48.97.5910.48.97.59
6110.48.97.60/3210.48.97.60 – 10.48.97.6010.48.97.60
6210.48.97.61/3210.48.97.61 – 10.48.97.6110.48.97.61
6310.48.97.62/3210.48.97.62 – 10.48.97.6210.48.97.62
6410.48.97.63/3210.48.97.63 – 10.48.97.6310.48.97.63
6510.48.97.64/3210.48.97.64 – 10.48.97.6410.48.97.64
6610.48.97.65/3210.48.97.65 – 10.48.97.6510.48.97.65
6710.48.97.66/3210.48.97.66 – 10.48.97.6610.48.97.66
6810.48.97.67/3210.48.97.67 – 10.48.97.6710.48.97.67
6910.48.97.68/3210.48.97.68 – 10.48.97.6810.48.97.68
7010.48.97.69/3210.48.97.69 – 10.48.97.6910.48.97.69
7110.48.97.70/3210.48.97.70 – 10.48.97.7010.48.97.70
7210.48.97.71/3210.48.97.71 – 10.48.97.7110.48.97.71
7310.48.97.72/3210.48.97.72 – 10.48.97.7210.48.97.72
7410.48.97.73/3210.48.97.73 – 10.48.97.7310.48.97.73
7510.48.97.74/3210.48.97.74 – 10.48.97.7410.48.97.74
7610.48.97.75/3210.48.97.75 – 10.48.97.7510.48.97.75
7710.48.97.76/3210.48.97.76 – 10.48.97.7610.48.97.76
7810.48.97.77/3210.48.97.77 – 10.48.97.7710.48.97.77
7910.48.97.78/3210.48.97.78 – 10.48.97.7810.48.97.78
8010.48.97.79/3210.48.97.79 – 10.48.97.7910.48.97.79
8110.48.97.80/3210.48.97.80 – 10.48.97.8010.48.97.80
8210.48.97.81/3210.48.97.81 – 10.48.97.8110.48.97.81
8310.48.97.82/3210.48.97.82 – 10.48.97.8210.48.97.82
8410.48.97.83/3210.48.97.83 – 10.48.97.8310.48.97.83
8510.48.97.84/3210.48.97.84 – 10.48.97.8410.48.97.84
8610.48.97.85/3210.48.97.85 – 10.48.97.8510.48.97.85
8710.48.97.86/3210.48.97.86 – 10.48.97.8610.48.97.86
8810.48.97.87/3210.48.97.87 – 10.48.97.8710.48.97.87
8910.48.97.88/3210.48.97.88 – 10.48.97.8810.48.97.88
9010.48.97.89/3210.48.97.89 – 10.48.97.8910.48.97.89
9110.48.97.90/3210.48.97.90 – 10.48.97.9010.48.97.90
9210.48.97.91/3210.48.97.91 – 10.48.97.9110.48.97.91
9310.48.97.92/3210.48.97.92 – 10.48.97.9210.48.97.92
9410.48.97.93/3210.48.97.93 – 10.48.97.9310.48.97.93
9510.48.97.94/3210.48.97.94 – 10.48.97.9410.48.97.94
9610.48.97.95/3210.48.97.95 – 10.48.97.9510.48.97.95
9710.48.97.96/3210.48.97.96 – 10.48.97.9610.48.97.96
9810.48.97.97/3210.48.97.97 – 10.48.97.9710.48.97.97
9910.48.97.98/3210.48.97.98 – 10.48.97.9810.48.97.98
10010.48.97.99/3210.48.97.99 – 10.48.97.9910.48.97.99
10110.48.97.100/3210.48.97.100 – 10.48.97.10010.48.97.100
10210.48.97.101/3210.48.97.101 – 10.48.97.10110.48.97.101
10310.48.97.102/3210.48.97.102 – 10.48.97.10210.48.97.102
10410.48.97.103/3210.48.97.103 – 10.48.97.10310.48.97.103
10510.48.97.104/3210.48.97.104 – 10.48.97.10410.48.97.104
10610.48.97.105/3210.48.97.105 – 10.48.97.10510.48.97.105
10710.48.97.106/3210.48.97.106 – 10.48.97.10610.48.97.106
10810.48.97.107/3210.48.97.107 – 10.48.97.10710.48.97.107
10910.48.97.108/3210.48.97.108 – 10.48.97.10810.48.97.108
11010.48.97.109/3210.48.97.109 – 10.48.97.10910.48.97.109
11110.48.97.110/3210.48.97.110 – 10.48.97.11010.48.97.110
11210.48.97.111/3210.48.97.111 – 10.48.97.11110.48.97.111
11310.48.97.112/3210.48.97.112 – 10.48.97.11210.48.97.112
11410.48.97.113/3210.48.97.113 – 10.48.97.11310.48.97.113
11510.48.97.114/3210.48.97.114 – 10.48.97.11410.48.97.114
11610.48.97.115/3210.48.97.115 – 10.48.97.11510.48.97.115
11710.48.97.116/3210.48.97.116 – 10.48.97.11610.48.97.116
11810.48.97.117/3210.48.97.117 – 10.48.97.11710.48.97.117
11910.48.97.118/3210.48.97.118 – 10.48.97.11810.48.97.118
12010.48.97.119/3210.48.97.119 – 10.48.97.11910.48.97.119
12110.48.97.120/3210.48.97.120 – 10.48.97.12010.48.97.120
12210.48.97.121/3210.48.97.121 – 10.48.97.12110.48.97.121
12310.48.97.122/3210.48.97.122 – 10.48.97.12210.48.97.122
12410.48.97.123/3210.48.97.123 – 10.48.97.12310.48.97.123
12510.48.97.124/3210.48.97.124 – 10.48.97.12410.48.97.124
12610.48.97.125/3210.48.97.125 – 10.48.97.12510.48.97.125
12710.48.97.126/3210.48.97.126 – 10.48.97.12610.48.97.126
12810.48.97.127/3210.48.97.127 – 10.48.97.12710.48.97.127
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 →