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)10.167.82.0/23
network10.167.82.0/23
broadcast10.167.83.255
first host10.167.82.1
last host10.167.83.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.167.82.0/23
address00001010.10100111.01010010.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.10100111.01010010.00000000
broadcast00001010.10100111.01010011.11111111
green = network part, grey = host part
hex0x0aa75200
decimal178737664
reverse dns0.82.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:5200

/23 split into /32 · 512 subnets

close ×
#networkhost rangebroadcast
110.167.82.0/3210.167.82.0 – 10.167.82.010.167.82.0
210.167.82.1/3210.167.82.1 – 10.167.82.110.167.82.1
310.167.82.2/3210.167.82.2 – 10.167.82.210.167.82.2
410.167.82.3/3210.167.82.3 – 10.167.82.310.167.82.3
510.167.82.4/3210.167.82.4 – 10.167.82.410.167.82.4
610.167.82.5/3210.167.82.5 – 10.167.82.510.167.82.5
710.167.82.6/3210.167.82.6 – 10.167.82.610.167.82.6
810.167.82.7/3210.167.82.7 – 10.167.82.710.167.82.7
910.167.82.8/3210.167.82.8 – 10.167.82.810.167.82.8
1010.167.82.9/3210.167.82.9 – 10.167.82.910.167.82.9
1110.167.82.10/3210.167.82.10 – 10.167.82.1010.167.82.10
1210.167.82.11/3210.167.82.11 – 10.167.82.1110.167.82.11
1310.167.82.12/3210.167.82.12 – 10.167.82.1210.167.82.12
1410.167.82.13/3210.167.82.13 – 10.167.82.1310.167.82.13
1510.167.82.14/3210.167.82.14 – 10.167.82.1410.167.82.14
1610.167.82.15/3210.167.82.15 – 10.167.82.1510.167.82.15
1710.167.82.16/3210.167.82.16 – 10.167.82.1610.167.82.16
1810.167.82.17/3210.167.82.17 – 10.167.82.1710.167.82.17
1910.167.82.18/3210.167.82.18 – 10.167.82.1810.167.82.18
2010.167.82.19/3210.167.82.19 – 10.167.82.1910.167.82.19
2110.167.82.20/3210.167.82.20 – 10.167.82.2010.167.82.20
2210.167.82.21/3210.167.82.21 – 10.167.82.2110.167.82.21
2310.167.82.22/3210.167.82.22 – 10.167.82.2210.167.82.22
2410.167.82.23/3210.167.82.23 – 10.167.82.2310.167.82.23
2510.167.82.24/3210.167.82.24 – 10.167.82.2410.167.82.24
2610.167.82.25/3210.167.82.25 – 10.167.82.2510.167.82.25
2710.167.82.26/3210.167.82.26 – 10.167.82.2610.167.82.26
2810.167.82.27/3210.167.82.27 – 10.167.82.2710.167.82.27
2910.167.82.28/3210.167.82.28 – 10.167.82.2810.167.82.28
3010.167.82.29/3210.167.82.29 – 10.167.82.2910.167.82.29
3110.167.82.30/3210.167.82.30 – 10.167.82.3010.167.82.30
3210.167.82.31/3210.167.82.31 – 10.167.82.3110.167.82.31
3310.167.82.32/3210.167.82.32 – 10.167.82.3210.167.82.32
3410.167.82.33/3210.167.82.33 – 10.167.82.3310.167.82.33
3510.167.82.34/3210.167.82.34 – 10.167.82.3410.167.82.34
3610.167.82.35/3210.167.82.35 – 10.167.82.3510.167.82.35
3710.167.82.36/3210.167.82.36 – 10.167.82.3610.167.82.36
3810.167.82.37/3210.167.82.37 – 10.167.82.3710.167.82.37
3910.167.82.38/3210.167.82.38 – 10.167.82.3810.167.82.38
4010.167.82.39/3210.167.82.39 – 10.167.82.3910.167.82.39
4110.167.82.40/3210.167.82.40 – 10.167.82.4010.167.82.40
4210.167.82.41/3210.167.82.41 – 10.167.82.4110.167.82.41
4310.167.82.42/3210.167.82.42 – 10.167.82.4210.167.82.42
4410.167.82.43/3210.167.82.43 – 10.167.82.4310.167.82.43
4510.167.82.44/3210.167.82.44 – 10.167.82.4410.167.82.44
4610.167.82.45/3210.167.82.45 – 10.167.82.4510.167.82.45
4710.167.82.46/3210.167.82.46 – 10.167.82.4610.167.82.46
4810.167.82.47/3210.167.82.47 – 10.167.82.4710.167.82.47
4910.167.82.48/3210.167.82.48 – 10.167.82.4810.167.82.48
5010.167.82.49/3210.167.82.49 – 10.167.82.4910.167.82.49
5110.167.82.50/3210.167.82.50 – 10.167.82.5010.167.82.50
5210.167.82.51/3210.167.82.51 – 10.167.82.5110.167.82.51
5310.167.82.52/3210.167.82.52 – 10.167.82.5210.167.82.52
5410.167.82.53/3210.167.82.53 – 10.167.82.5310.167.82.53
5510.167.82.54/3210.167.82.54 – 10.167.82.5410.167.82.54
5610.167.82.55/3210.167.82.55 – 10.167.82.5510.167.82.55
5710.167.82.56/3210.167.82.56 – 10.167.82.5610.167.82.56
5810.167.82.57/3210.167.82.57 – 10.167.82.5710.167.82.57
5910.167.82.58/3210.167.82.58 – 10.167.82.5810.167.82.58
6010.167.82.59/3210.167.82.59 – 10.167.82.5910.167.82.59
6110.167.82.60/3210.167.82.60 – 10.167.82.6010.167.82.60
6210.167.82.61/3210.167.82.61 – 10.167.82.6110.167.82.61
6310.167.82.62/3210.167.82.62 – 10.167.82.6210.167.82.62
6410.167.82.63/3210.167.82.63 – 10.167.82.6310.167.82.63
6510.167.82.64/3210.167.82.64 – 10.167.82.6410.167.82.64
6610.167.82.65/3210.167.82.65 – 10.167.82.6510.167.82.65
6710.167.82.66/3210.167.82.66 – 10.167.82.6610.167.82.66
6810.167.82.67/3210.167.82.67 – 10.167.82.6710.167.82.67
6910.167.82.68/3210.167.82.68 – 10.167.82.6810.167.82.68
7010.167.82.69/3210.167.82.69 – 10.167.82.6910.167.82.69
7110.167.82.70/3210.167.82.70 – 10.167.82.7010.167.82.70
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7310.167.82.72/3210.167.82.72 – 10.167.82.7210.167.82.72
7410.167.82.73/3210.167.82.73 – 10.167.82.7310.167.82.73
7510.167.82.74/3210.167.82.74 – 10.167.82.7410.167.82.74
7610.167.82.75/3210.167.82.75 – 10.167.82.7510.167.82.75
7710.167.82.76/3210.167.82.76 – 10.167.82.7610.167.82.76
7810.167.82.77/3210.167.82.77 – 10.167.82.7710.167.82.77
7910.167.82.78/3210.167.82.78 – 10.167.82.7810.167.82.78
8010.167.82.79/3210.167.82.79 – 10.167.82.7910.167.82.79
8110.167.82.80/3210.167.82.80 – 10.167.82.8010.167.82.80
8210.167.82.81/3210.167.82.81 – 10.167.82.8110.167.82.81
8310.167.82.82/3210.167.82.82 – 10.167.82.8210.167.82.82
8410.167.82.83/3210.167.82.83 – 10.167.82.8310.167.82.83
8510.167.82.84/3210.167.82.84 – 10.167.82.8410.167.82.84
8610.167.82.85/3210.167.82.85 – 10.167.82.8510.167.82.85
8710.167.82.86/3210.167.82.86 – 10.167.82.8610.167.82.86
8810.167.82.87/3210.167.82.87 – 10.167.82.8710.167.82.87
8910.167.82.88/3210.167.82.88 – 10.167.82.8810.167.82.88
9010.167.82.89/3210.167.82.89 – 10.167.82.8910.167.82.89
9110.167.82.90/3210.167.82.90 – 10.167.82.9010.167.82.90
9210.167.82.91/3210.167.82.91 – 10.167.82.9110.167.82.91
9310.167.82.92/3210.167.82.92 – 10.167.82.9210.167.82.92
9410.167.82.93/3210.167.82.93 – 10.167.82.9310.167.82.93
9510.167.82.94/3210.167.82.94 – 10.167.82.9410.167.82.94
9610.167.82.95/3210.167.82.95 – 10.167.82.9510.167.82.95
9710.167.82.96/3210.167.82.96 – 10.167.82.9610.167.82.96
9810.167.82.97/3210.167.82.97 – 10.167.82.9710.167.82.97
9910.167.82.98/3210.167.82.98 – 10.167.82.9810.167.82.98
10010.167.82.99/3210.167.82.99 – 10.167.82.9910.167.82.99
10110.167.82.100/3210.167.82.100 – 10.167.82.10010.167.82.100
10210.167.82.101/3210.167.82.101 – 10.167.82.10110.167.82.101
10310.167.82.102/3210.167.82.102 – 10.167.82.10210.167.82.102
10410.167.82.103/3210.167.82.103 – 10.167.82.10310.167.82.103
10510.167.82.104/3210.167.82.104 – 10.167.82.10410.167.82.104
10610.167.82.105/3210.167.82.105 – 10.167.82.10510.167.82.105
10710.167.82.106/3210.167.82.106 – 10.167.82.10610.167.82.106
10810.167.82.107/3210.167.82.107 – 10.167.82.10710.167.82.107
10910.167.82.108/3210.167.82.108 – 10.167.82.10810.167.82.108
11010.167.82.109/3210.167.82.109 – 10.167.82.10910.167.82.109
11110.167.82.110/3210.167.82.110 – 10.167.82.11010.167.82.110
11210.167.82.111/3210.167.82.111 – 10.167.82.11110.167.82.111
11310.167.82.112/3210.167.82.112 – 10.167.82.11210.167.82.112
11410.167.82.113/3210.167.82.113 – 10.167.82.11310.167.82.113
11510.167.82.114/3210.167.82.114 – 10.167.82.11410.167.82.114
11610.167.82.115/3210.167.82.115 – 10.167.82.11510.167.82.115
11710.167.82.116/3210.167.82.116 – 10.167.82.11610.167.82.116
11810.167.82.117/3210.167.82.117 – 10.167.82.11710.167.82.117
11910.167.82.118/3210.167.82.118 – 10.167.82.11810.167.82.118
12010.167.82.119/3210.167.82.119 – 10.167.82.11910.167.82.119
12110.167.82.120/3210.167.82.120 – 10.167.82.12010.167.82.120
12210.167.82.121/3210.167.82.121 – 10.167.82.12110.167.82.121
12310.167.82.122/3210.167.82.122 – 10.167.82.12210.167.82.122
12410.167.82.123/3210.167.82.123 – 10.167.82.12310.167.82.123
12510.167.82.124/3210.167.82.124 – 10.167.82.12410.167.82.124
12610.167.82.125/3210.167.82.125 – 10.167.82.12510.167.82.125
12710.167.82.126/3210.167.82.126 – 10.167.82.12610.167.82.126
12810.167.82.127/3210.167.82.127 – 10.167.82.12710.167.82.127
12910.167.82.128/3210.167.82.128 – 10.167.82.12810.167.82.128
13010.167.82.129/3210.167.82.129 – 10.167.82.12910.167.82.129
13110.167.82.130/3210.167.82.130 – 10.167.82.13010.167.82.130
13210.167.82.131/3210.167.82.131 – 10.167.82.13110.167.82.131
13310.167.82.132/3210.167.82.132 – 10.167.82.13210.167.82.132
13410.167.82.133/3210.167.82.133 – 10.167.82.13310.167.82.133
13510.167.82.134/3210.167.82.134 – 10.167.82.13410.167.82.134
13610.167.82.135/3210.167.82.135 – 10.167.82.13510.167.82.135
13710.167.82.136/3210.167.82.136 – 10.167.82.13610.167.82.136
13810.167.82.137/3210.167.82.137 – 10.167.82.13710.167.82.137
13910.167.82.138/3210.167.82.138 – 10.167.82.13810.167.82.138
14010.167.82.139/3210.167.82.139 – 10.167.82.13910.167.82.139
14110.167.82.140/3210.167.82.140 – 10.167.82.14010.167.82.140
14210.167.82.141/3210.167.82.141 – 10.167.82.14110.167.82.141
14310.167.82.142/3210.167.82.142 – 10.167.82.14210.167.82.142
14410.167.82.143/3210.167.82.143 – 10.167.82.14310.167.82.143
14510.167.82.144/3210.167.82.144 – 10.167.82.14410.167.82.144
14610.167.82.145/3210.167.82.145 – 10.167.82.14510.167.82.145
14710.167.82.146/3210.167.82.146 – 10.167.82.14610.167.82.146
14810.167.82.147/3210.167.82.147 – 10.167.82.14710.167.82.147
14910.167.82.148/3210.167.82.148 – 10.167.82.14810.167.82.148
15010.167.82.149/3210.167.82.149 – 10.167.82.14910.167.82.149
15110.167.82.150/3210.167.82.150 – 10.167.82.15010.167.82.150
15210.167.82.151/3210.167.82.151 – 10.167.82.15110.167.82.151
15310.167.82.152/3210.167.82.152 – 10.167.82.15210.167.82.152
15410.167.82.153/3210.167.82.153 – 10.167.82.15310.167.82.153
15510.167.82.154/3210.167.82.154 – 10.167.82.15410.167.82.154
15610.167.82.155/3210.167.82.155 – 10.167.82.15510.167.82.155
15710.167.82.156/3210.167.82.156 – 10.167.82.15610.167.82.156
15810.167.82.157/3210.167.82.157 – 10.167.82.15710.167.82.157
15910.167.82.158/3210.167.82.158 – 10.167.82.15810.167.82.158
16010.167.82.159/3210.167.82.159 – 10.167.82.15910.167.82.159
16110.167.82.160/3210.167.82.160 – 10.167.82.16010.167.82.160
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16310.167.82.162/3210.167.82.162 – 10.167.82.16210.167.82.162
16410.167.82.163/3210.167.82.163 – 10.167.82.16310.167.82.163
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16810.167.82.167/3210.167.82.167 – 10.167.82.16710.167.82.167
16910.167.82.168/3210.167.82.168 – 10.167.82.16810.167.82.168
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22010.167.82.219/3210.167.82.219 – 10.167.82.21910.167.82.219
22110.167.82.220/3210.167.82.220 – 10.167.82.22010.167.82.220
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22910.167.82.228/3210.167.82.228 – 10.167.82.22810.167.82.228
23010.167.82.229/3210.167.82.229 – 10.167.82.22910.167.82.229
23110.167.82.230/3210.167.82.230 – 10.167.82.23010.167.82.230
23210.167.82.231/3210.167.82.231 – 10.167.82.23110.167.82.231
23310.167.82.232/3210.167.82.232 – 10.167.82.23210.167.82.232
23410.167.82.233/3210.167.82.233 – 10.167.82.23310.167.82.233
23510.167.82.234/3210.167.82.234 – 10.167.82.23410.167.82.234
23610.167.82.235/3210.167.82.235 – 10.167.82.23510.167.82.235
23710.167.82.236/3210.167.82.236 – 10.167.82.23610.167.82.236
23810.167.82.237/3210.167.82.237 – 10.167.82.23710.167.82.237
23910.167.82.238/3210.167.82.238 – 10.167.82.23810.167.82.238
24010.167.82.239/3210.167.82.239 – 10.167.82.23910.167.82.239
24110.167.82.240/3210.167.82.240 – 10.167.82.24010.167.82.240
24210.167.82.241/3210.167.82.241 – 10.167.82.24110.167.82.241
24310.167.82.242/3210.167.82.242 – 10.167.82.24210.167.82.242
24410.167.82.243/3210.167.82.243 – 10.167.82.24310.167.82.243
24510.167.82.244/3210.167.82.244 – 10.167.82.24410.167.82.244
24610.167.82.245/3210.167.82.245 – 10.167.82.24510.167.82.245
24710.167.82.246/3210.167.82.246 – 10.167.82.24610.167.82.246
24810.167.82.247/3210.167.82.247 – 10.167.82.24710.167.82.247
24910.167.82.248/3210.167.82.248 – 10.167.82.24810.167.82.248
25010.167.82.249/3210.167.82.249 – 10.167.82.24910.167.82.249
25110.167.82.250/3210.167.82.250 – 10.167.82.25010.167.82.250
25210.167.82.251/3210.167.82.251 – 10.167.82.25110.167.82.251
25310.167.82.252/3210.167.82.252 – 10.167.82.25210.167.82.252
25410.167.82.253/3210.167.82.253 – 10.167.82.25310.167.82.253
25510.167.82.254/3210.167.82.254 – 10.167.82.25410.167.82.254
25610.167.82.255/3210.167.82.255 – 10.167.82.25510.167.82.255

showing 256 of 512

01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefixsubnet maskaddresseshostsin your /23
/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-
/23255.255.254.05125101
/24255.255.255.02562542 split →
/25255.255.255.1281281264 split →
/26255.255.255.19264628 split →
/27255.255.255.224323016 split →
/28255.255.255.240161432 split →
/29255.255.255.2488664 split →
/30255.255.255.25242128 split →
/31255.255.255.25422256 split →
/32255.255.255.25511512 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 →