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)10.232.200.0/23
network10.232.200.0/23
broadcast10.232.201.255
first host10.232.200.1
last host10.232.201.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.232.200.0/23
address00001010.11101000.11001000.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.11101000.11001000.00000000
broadcast00001010.11101000.11001001.11111111
green = network part, grey = host part
hex0x0ae8c800
decimal183027712
reverse dns0.200.232.10.in-addr.arpa
ipv4-mapped::ffff:ae8:c800

/23 split into /30 · 128 subnets

close ×
#networkhost rangebroadcast
110.232.200.0/3010.232.200.1 – 10.232.200.210.232.200.3
210.232.200.4/3010.232.200.5 – 10.232.200.610.232.200.7
310.232.200.8/3010.232.200.9 – 10.232.200.1010.232.200.11
410.232.200.12/3010.232.200.13 – 10.232.200.1410.232.200.15
510.232.200.16/3010.232.200.17 – 10.232.200.1810.232.200.19
610.232.200.20/3010.232.200.21 – 10.232.200.2210.232.200.23
710.232.200.24/3010.232.200.25 – 10.232.200.2610.232.200.27
810.232.200.28/3010.232.200.29 – 10.232.200.3010.232.200.31
910.232.200.32/3010.232.200.33 – 10.232.200.3410.232.200.35
1010.232.200.36/3010.232.200.37 – 10.232.200.3810.232.200.39
1110.232.200.40/3010.232.200.41 – 10.232.200.4210.232.200.43
1210.232.200.44/3010.232.200.45 – 10.232.200.4610.232.200.47
1310.232.200.48/3010.232.200.49 – 10.232.200.5010.232.200.51
1410.232.200.52/3010.232.200.53 – 10.232.200.5410.232.200.55
1510.232.200.56/3010.232.200.57 – 10.232.200.5810.232.200.59
1610.232.200.60/3010.232.200.61 – 10.232.200.6210.232.200.63
1710.232.200.64/3010.232.200.65 – 10.232.200.6610.232.200.67
1810.232.200.68/3010.232.200.69 – 10.232.200.7010.232.200.71
1910.232.200.72/3010.232.200.73 – 10.232.200.7410.232.200.75
2010.232.200.76/3010.232.200.77 – 10.232.200.7810.232.200.79
2110.232.200.80/3010.232.200.81 – 10.232.200.8210.232.200.83
2210.232.200.84/3010.232.200.85 – 10.232.200.8610.232.200.87
2310.232.200.88/3010.232.200.89 – 10.232.200.9010.232.200.91
2410.232.200.92/3010.232.200.93 – 10.232.200.9410.232.200.95
2510.232.200.96/3010.232.200.97 – 10.232.200.9810.232.200.99
2610.232.200.100/3010.232.200.101 – 10.232.200.10210.232.200.103
2710.232.200.104/3010.232.200.105 – 10.232.200.10610.232.200.107
2810.232.200.108/3010.232.200.109 – 10.232.200.11010.232.200.111
2910.232.200.112/3010.232.200.113 – 10.232.200.11410.232.200.115
3010.232.200.116/3010.232.200.117 – 10.232.200.11810.232.200.119
3110.232.200.120/3010.232.200.121 – 10.232.200.12210.232.200.123
3210.232.200.124/3010.232.200.125 – 10.232.200.12610.232.200.127
3310.232.200.128/3010.232.200.129 – 10.232.200.13010.232.200.131
3410.232.200.132/3010.232.200.133 – 10.232.200.13410.232.200.135
3510.232.200.136/3010.232.200.137 – 10.232.200.13810.232.200.139
3610.232.200.140/3010.232.200.141 – 10.232.200.14210.232.200.143
3710.232.200.144/3010.232.200.145 – 10.232.200.14610.232.200.147
3810.232.200.148/3010.232.200.149 – 10.232.200.15010.232.200.151
3910.232.200.152/3010.232.200.153 – 10.232.200.15410.232.200.155
4010.232.200.156/3010.232.200.157 – 10.232.200.15810.232.200.159
4110.232.200.160/3010.232.200.161 – 10.232.200.16210.232.200.163
4210.232.200.164/3010.232.200.165 – 10.232.200.16610.232.200.167
4310.232.200.168/3010.232.200.169 – 10.232.200.17010.232.200.171
4410.232.200.172/3010.232.200.173 – 10.232.200.17410.232.200.175
4510.232.200.176/3010.232.200.177 – 10.232.200.17810.232.200.179
4610.232.200.180/3010.232.200.181 – 10.232.200.18210.232.200.183
4710.232.200.184/3010.232.200.185 – 10.232.200.18610.232.200.187
4810.232.200.188/3010.232.200.189 – 10.232.200.19010.232.200.191
4910.232.200.192/3010.232.200.193 – 10.232.200.19410.232.200.195
5010.232.200.196/3010.232.200.197 – 10.232.200.19810.232.200.199
5110.232.200.200/3010.232.200.201 – 10.232.200.20210.232.200.203
5210.232.200.204/3010.232.200.205 – 10.232.200.20610.232.200.207
5310.232.200.208/3010.232.200.209 – 10.232.200.21010.232.200.211
5410.232.200.212/3010.232.200.213 – 10.232.200.21410.232.200.215
5510.232.200.216/3010.232.200.217 – 10.232.200.21810.232.200.219
5610.232.200.220/3010.232.200.221 – 10.232.200.22210.232.200.223
5710.232.200.224/3010.232.200.225 – 10.232.200.22610.232.200.227
5810.232.200.228/3010.232.200.229 – 10.232.200.23010.232.200.231
5910.232.200.232/3010.232.200.233 – 10.232.200.23410.232.200.235
6010.232.200.236/3010.232.200.237 – 10.232.200.23810.232.200.239
6110.232.200.240/3010.232.200.241 – 10.232.200.24210.232.200.243
6210.232.200.244/3010.232.200.245 – 10.232.200.24610.232.200.247
6310.232.200.248/3010.232.200.249 – 10.232.200.25010.232.200.251
6410.232.200.252/3010.232.200.253 – 10.232.200.25410.232.200.255
6510.232.201.0/3010.232.201.1 – 10.232.201.210.232.201.3
6610.232.201.4/3010.232.201.5 – 10.232.201.610.232.201.7
6710.232.201.8/3010.232.201.9 – 10.232.201.1010.232.201.11
6810.232.201.12/3010.232.201.13 – 10.232.201.1410.232.201.15
6910.232.201.16/3010.232.201.17 – 10.232.201.1810.232.201.19
7010.232.201.20/3010.232.201.21 – 10.232.201.2210.232.201.23
7110.232.201.24/3010.232.201.25 – 10.232.201.2610.232.201.27
7210.232.201.28/3010.232.201.29 – 10.232.201.3010.232.201.31
7310.232.201.32/3010.232.201.33 – 10.232.201.3410.232.201.35
7410.232.201.36/3010.232.201.37 – 10.232.201.3810.232.201.39
7510.232.201.40/3010.232.201.41 – 10.232.201.4210.232.201.43
7610.232.201.44/3010.232.201.45 – 10.232.201.4610.232.201.47
7710.232.201.48/3010.232.201.49 – 10.232.201.5010.232.201.51
7810.232.201.52/3010.232.201.53 – 10.232.201.5410.232.201.55
7910.232.201.56/3010.232.201.57 – 10.232.201.5810.232.201.59
8010.232.201.60/3010.232.201.61 – 10.232.201.6210.232.201.63
8110.232.201.64/3010.232.201.65 – 10.232.201.6610.232.201.67
8210.232.201.68/3010.232.201.69 – 10.232.201.7010.232.201.71
8310.232.201.72/3010.232.201.73 – 10.232.201.7410.232.201.75
8410.232.201.76/3010.232.201.77 – 10.232.201.7810.232.201.79
8510.232.201.80/3010.232.201.81 – 10.232.201.8210.232.201.83
8610.232.201.84/3010.232.201.85 – 10.232.201.8610.232.201.87
8710.232.201.88/3010.232.201.89 – 10.232.201.9010.232.201.91
8810.232.201.92/3010.232.201.93 – 10.232.201.9410.232.201.95
8910.232.201.96/3010.232.201.97 – 10.232.201.9810.232.201.99
9010.232.201.100/3010.232.201.101 – 10.232.201.10210.232.201.103
9110.232.201.104/3010.232.201.105 – 10.232.201.10610.232.201.107
9210.232.201.108/3010.232.201.109 – 10.232.201.11010.232.201.111
9310.232.201.112/3010.232.201.113 – 10.232.201.11410.232.201.115
9410.232.201.116/3010.232.201.117 – 10.232.201.11810.232.201.119
9510.232.201.120/3010.232.201.121 – 10.232.201.12210.232.201.123
9610.232.201.124/3010.232.201.125 – 10.232.201.12610.232.201.127
9710.232.201.128/3010.232.201.129 – 10.232.201.13010.232.201.131
9810.232.201.132/3010.232.201.133 – 10.232.201.13410.232.201.135
9910.232.201.136/3010.232.201.137 – 10.232.201.13810.232.201.139
10010.232.201.140/3010.232.201.141 – 10.232.201.14210.232.201.143
10110.232.201.144/3010.232.201.145 – 10.232.201.14610.232.201.147
10210.232.201.148/3010.232.201.149 – 10.232.201.15010.232.201.151
10310.232.201.152/3010.232.201.153 – 10.232.201.15410.232.201.155
10410.232.201.156/3010.232.201.157 – 10.232.201.15810.232.201.159
10510.232.201.160/3010.232.201.161 – 10.232.201.16210.232.201.163
10610.232.201.164/3010.232.201.165 – 10.232.201.16610.232.201.167
10710.232.201.168/3010.232.201.169 – 10.232.201.17010.232.201.171
10810.232.201.172/3010.232.201.173 – 10.232.201.17410.232.201.175
10910.232.201.176/3010.232.201.177 – 10.232.201.17810.232.201.179
11010.232.201.180/3010.232.201.181 – 10.232.201.18210.232.201.183
11110.232.201.184/3010.232.201.185 – 10.232.201.18610.232.201.187
11210.232.201.188/3010.232.201.189 – 10.232.201.19010.232.201.191
11310.232.201.192/3010.232.201.193 – 10.232.201.19410.232.201.195
11410.232.201.196/3010.232.201.197 – 10.232.201.19810.232.201.199
11510.232.201.200/3010.232.201.201 – 10.232.201.20210.232.201.203
11610.232.201.204/3010.232.201.205 – 10.232.201.20610.232.201.207
11710.232.201.208/3010.232.201.209 – 10.232.201.21010.232.201.211
11810.232.201.212/3010.232.201.213 – 10.232.201.21410.232.201.215
11910.232.201.216/3010.232.201.217 – 10.232.201.21810.232.201.219
12010.232.201.220/3010.232.201.221 – 10.232.201.22210.232.201.223
12110.232.201.224/3010.232.201.225 – 10.232.201.22610.232.201.227
12210.232.201.228/3010.232.201.229 – 10.232.201.23010.232.201.231
12310.232.201.232/3010.232.201.233 – 10.232.201.23410.232.201.235
12410.232.201.236/3010.232.201.237 – 10.232.201.23810.232.201.239
12510.232.201.240/3010.232.201.241 – 10.232.201.24210.232.201.243
12610.232.201.244/3010.232.201.245 – 10.232.201.24610.232.201.247
12710.232.201.248/3010.232.201.249 – 10.232.201.25010.232.201.251
12810.232.201.252/3010.232.201.253 – 10.232.201.25410.232.201.255
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 →