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)10.232.182.0/23
network10.232.182.0/23
broadcast10.232.183.255
first host10.232.182.1
last host10.232.183.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.232.182.0/23
address00001010.11101000.10110110.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.11101000.10110110.00000000
broadcast00001010.11101000.10110111.11111111
green = network part, grey = host part
hex0x0ae8b600
decimal183023104
reverse dns0.182.232.10.in-addr.arpa
ipv4-mapped::ffff:ae8:b600

/23 split into /30 · 128 subnets

close ×
#networkhost rangebroadcast
110.232.182.0/3010.232.182.1 – 10.232.182.210.232.182.3
210.232.182.4/3010.232.182.5 – 10.232.182.610.232.182.7
310.232.182.8/3010.232.182.9 – 10.232.182.1010.232.182.11
410.232.182.12/3010.232.182.13 – 10.232.182.1410.232.182.15
510.232.182.16/3010.232.182.17 – 10.232.182.1810.232.182.19
610.232.182.20/3010.232.182.21 – 10.232.182.2210.232.182.23
710.232.182.24/3010.232.182.25 – 10.232.182.2610.232.182.27
810.232.182.28/3010.232.182.29 – 10.232.182.3010.232.182.31
910.232.182.32/3010.232.182.33 – 10.232.182.3410.232.182.35
1010.232.182.36/3010.232.182.37 – 10.232.182.3810.232.182.39
1110.232.182.40/3010.232.182.41 – 10.232.182.4210.232.182.43
1210.232.182.44/3010.232.182.45 – 10.232.182.4610.232.182.47
1310.232.182.48/3010.232.182.49 – 10.232.182.5010.232.182.51
1410.232.182.52/3010.232.182.53 – 10.232.182.5410.232.182.55
1510.232.182.56/3010.232.182.57 – 10.232.182.5810.232.182.59
1610.232.182.60/3010.232.182.61 – 10.232.182.6210.232.182.63
1710.232.182.64/3010.232.182.65 – 10.232.182.6610.232.182.67
1810.232.182.68/3010.232.182.69 – 10.232.182.7010.232.182.71
1910.232.182.72/3010.232.182.73 – 10.232.182.7410.232.182.75
2010.232.182.76/3010.232.182.77 – 10.232.182.7810.232.182.79
2110.232.182.80/3010.232.182.81 – 10.232.182.8210.232.182.83
2210.232.182.84/3010.232.182.85 – 10.232.182.8610.232.182.87
2310.232.182.88/3010.232.182.89 – 10.232.182.9010.232.182.91
2410.232.182.92/3010.232.182.93 – 10.232.182.9410.232.182.95
2510.232.182.96/3010.232.182.97 – 10.232.182.9810.232.182.99
2610.232.182.100/3010.232.182.101 – 10.232.182.10210.232.182.103
2710.232.182.104/3010.232.182.105 – 10.232.182.10610.232.182.107
2810.232.182.108/3010.232.182.109 – 10.232.182.11010.232.182.111
2910.232.182.112/3010.232.182.113 – 10.232.182.11410.232.182.115
3010.232.182.116/3010.232.182.117 – 10.232.182.11810.232.182.119
3110.232.182.120/3010.232.182.121 – 10.232.182.12210.232.182.123
3210.232.182.124/3010.232.182.125 – 10.232.182.12610.232.182.127
3310.232.182.128/3010.232.182.129 – 10.232.182.13010.232.182.131
3410.232.182.132/3010.232.182.133 – 10.232.182.13410.232.182.135
3510.232.182.136/3010.232.182.137 – 10.232.182.13810.232.182.139
3610.232.182.140/3010.232.182.141 – 10.232.182.14210.232.182.143
3710.232.182.144/3010.232.182.145 – 10.232.182.14610.232.182.147
3810.232.182.148/3010.232.182.149 – 10.232.182.15010.232.182.151
3910.232.182.152/3010.232.182.153 – 10.232.182.15410.232.182.155
4010.232.182.156/3010.232.182.157 – 10.232.182.15810.232.182.159
4110.232.182.160/3010.232.182.161 – 10.232.182.16210.232.182.163
4210.232.182.164/3010.232.182.165 – 10.232.182.16610.232.182.167
4310.232.182.168/3010.232.182.169 – 10.232.182.17010.232.182.171
4410.232.182.172/3010.232.182.173 – 10.232.182.17410.232.182.175
4510.232.182.176/3010.232.182.177 – 10.232.182.17810.232.182.179
4610.232.182.180/3010.232.182.181 – 10.232.182.18210.232.182.183
4710.232.182.184/3010.232.182.185 – 10.232.182.18610.232.182.187
4810.232.182.188/3010.232.182.189 – 10.232.182.19010.232.182.191
4910.232.182.192/3010.232.182.193 – 10.232.182.19410.232.182.195
5010.232.182.196/3010.232.182.197 – 10.232.182.19810.232.182.199
5110.232.182.200/3010.232.182.201 – 10.232.182.20210.232.182.203
5210.232.182.204/3010.232.182.205 – 10.232.182.20610.232.182.207
5310.232.182.208/3010.232.182.209 – 10.232.182.21010.232.182.211
5410.232.182.212/3010.232.182.213 – 10.232.182.21410.232.182.215
5510.232.182.216/3010.232.182.217 – 10.232.182.21810.232.182.219
5610.232.182.220/3010.232.182.221 – 10.232.182.22210.232.182.223
5710.232.182.224/3010.232.182.225 – 10.232.182.22610.232.182.227
5810.232.182.228/3010.232.182.229 – 10.232.182.23010.232.182.231
5910.232.182.232/3010.232.182.233 – 10.232.182.23410.232.182.235
6010.232.182.236/3010.232.182.237 – 10.232.182.23810.232.182.239
6110.232.182.240/3010.232.182.241 – 10.232.182.24210.232.182.243
6210.232.182.244/3010.232.182.245 – 10.232.182.24610.232.182.247
6310.232.182.248/3010.232.182.249 – 10.232.182.25010.232.182.251
6410.232.182.252/3010.232.182.253 – 10.232.182.25410.232.182.255
6510.232.183.0/3010.232.183.1 – 10.232.183.210.232.183.3
6610.232.183.4/3010.232.183.5 – 10.232.183.610.232.183.7
6710.232.183.8/3010.232.183.9 – 10.232.183.1010.232.183.11
6810.232.183.12/3010.232.183.13 – 10.232.183.1410.232.183.15
6910.232.183.16/3010.232.183.17 – 10.232.183.1810.232.183.19
7010.232.183.20/3010.232.183.21 – 10.232.183.2210.232.183.23
7110.232.183.24/3010.232.183.25 – 10.232.183.2610.232.183.27
7210.232.183.28/3010.232.183.29 – 10.232.183.3010.232.183.31
7310.232.183.32/3010.232.183.33 – 10.232.183.3410.232.183.35
7410.232.183.36/3010.232.183.37 – 10.232.183.3810.232.183.39
7510.232.183.40/3010.232.183.41 – 10.232.183.4210.232.183.43
7610.232.183.44/3010.232.183.45 – 10.232.183.4610.232.183.47
7710.232.183.48/3010.232.183.49 – 10.232.183.5010.232.183.51
7810.232.183.52/3010.232.183.53 – 10.232.183.5410.232.183.55
7910.232.183.56/3010.232.183.57 – 10.232.183.5810.232.183.59
8010.232.183.60/3010.232.183.61 – 10.232.183.6210.232.183.63
8110.232.183.64/3010.232.183.65 – 10.232.183.6610.232.183.67
8210.232.183.68/3010.232.183.69 – 10.232.183.7010.232.183.71
8310.232.183.72/3010.232.183.73 – 10.232.183.7410.232.183.75
8410.232.183.76/3010.232.183.77 – 10.232.183.7810.232.183.79
8510.232.183.80/3010.232.183.81 – 10.232.183.8210.232.183.83
8610.232.183.84/3010.232.183.85 – 10.232.183.8610.232.183.87
8710.232.183.88/3010.232.183.89 – 10.232.183.9010.232.183.91
8810.232.183.92/3010.232.183.93 – 10.232.183.9410.232.183.95
8910.232.183.96/3010.232.183.97 – 10.232.183.9810.232.183.99
9010.232.183.100/3010.232.183.101 – 10.232.183.10210.232.183.103
9110.232.183.104/3010.232.183.105 – 10.232.183.10610.232.183.107
9210.232.183.108/3010.232.183.109 – 10.232.183.11010.232.183.111
9310.232.183.112/3010.232.183.113 – 10.232.183.11410.232.183.115
9410.232.183.116/3010.232.183.117 – 10.232.183.11810.232.183.119
9510.232.183.120/3010.232.183.121 – 10.232.183.12210.232.183.123
9610.232.183.124/3010.232.183.125 – 10.232.183.12610.232.183.127
9710.232.183.128/3010.232.183.129 – 10.232.183.13010.232.183.131
9810.232.183.132/3010.232.183.133 – 10.232.183.13410.232.183.135
9910.232.183.136/3010.232.183.137 – 10.232.183.13810.232.183.139
10010.232.183.140/3010.232.183.141 – 10.232.183.14210.232.183.143
10110.232.183.144/3010.232.183.145 – 10.232.183.14610.232.183.147
10210.232.183.148/3010.232.183.149 – 10.232.183.15010.232.183.151
10310.232.183.152/3010.232.183.153 – 10.232.183.15410.232.183.155
10410.232.183.156/3010.232.183.157 – 10.232.183.15810.232.183.159
10510.232.183.160/3010.232.183.161 – 10.232.183.16210.232.183.163
10610.232.183.164/3010.232.183.165 – 10.232.183.16610.232.183.167
10710.232.183.168/3010.232.183.169 – 10.232.183.17010.232.183.171
10810.232.183.172/3010.232.183.173 – 10.232.183.17410.232.183.175
10910.232.183.176/3010.232.183.177 – 10.232.183.17810.232.183.179
11010.232.183.180/3010.232.183.181 – 10.232.183.18210.232.183.183
11110.232.183.184/3010.232.183.185 – 10.232.183.18610.232.183.187
11210.232.183.188/3010.232.183.189 – 10.232.183.19010.232.183.191
11310.232.183.192/3010.232.183.193 – 10.232.183.19410.232.183.195
11410.232.183.196/3010.232.183.197 – 10.232.183.19810.232.183.199
11510.232.183.200/3010.232.183.201 – 10.232.183.20210.232.183.203
11610.232.183.204/3010.232.183.205 – 10.232.183.20610.232.183.207
11710.232.183.208/3010.232.183.209 – 10.232.183.21010.232.183.211
11810.232.183.212/3010.232.183.213 – 10.232.183.21410.232.183.215
11910.232.183.216/3010.232.183.217 – 10.232.183.21810.232.183.219
12010.232.183.220/3010.232.183.221 – 10.232.183.22210.232.183.223
12110.232.183.224/3010.232.183.225 – 10.232.183.22610.232.183.227
12210.232.183.228/3010.232.183.229 – 10.232.183.23010.232.183.231
12310.232.183.232/3010.232.183.233 – 10.232.183.23410.232.183.235
12410.232.183.236/3010.232.183.237 – 10.232.183.23810.232.183.239
12510.232.183.240/3010.232.183.241 – 10.232.183.24210.232.183.243
12610.232.183.244/3010.232.183.245 – 10.232.183.24610.232.183.247
12710.232.183.248/3010.232.183.249 – 10.232.183.25010.232.183.251
12810.232.183.252/3010.232.183.253 – 10.232.183.25410.232.183.255
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 →