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)10.232.178.0/23
network10.232.178.0/23
broadcast10.232.179.255
first host10.232.178.1
last host10.232.179.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.232.178.0/23
address00001010.11101000.10110010.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.11101000.10110010.00000000
broadcast00001010.11101000.10110011.11111111
green = network part, grey = host part
hex0x0ae8b200
decimal183022080
reverse dns0.178.232.10.in-addr.arpa
ipv4-mapped::ffff:ae8:b200

/23 split into /30 · 128 subnets

close ×
#networkhost rangebroadcast
110.232.178.0/3010.232.178.1 – 10.232.178.210.232.178.3
210.232.178.4/3010.232.178.5 – 10.232.178.610.232.178.7
310.232.178.8/3010.232.178.9 – 10.232.178.1010.232.178.11
410.232.178.12/3010.232.178.13 – 10.232.178.1410.232.178.15
510.232.178.16/3010.232.178.17 – 10.232.178.1810.232.178.19
610.232.178.20/3010.232.178.21 – 10.232.178.2210.232.178.23
710.232.178.24/3010.232.178.25 – 10.232.178.2610.232.178.27
810.232.178.28/3010.232.178.29 – 10.232.178.3010.232.178.31
910.232.178.32/3010.232.178.33 – 10.232.178.3410.232.178.35
1010.232.178.36/3010.232.178.37 – 10.232.178.3810.232.178.39
1110.232.178.40/3010.232.178.41 – 10.232.178.4210.232.178.43
1210.232.178.44/3010.232.178.45 – 10.232.178.4610.232.178.47
1310.232.178.48/3010.232.178.49 – 10.232.178.5010.232.178.51
1410.232.178.52/3010.232.178.53 – 10.232.178.5410.232.178.55
1510.232.178.56/3010.232.178.57 – 10.232.178.5810.232.178.59
1610.232.178.60/3010.232.178.61 – 10.232.178.6210.232.178.63
1710.232.178.64/3010.232.178.65 – 10.232.178.6610.232.178.67
1810.232.178.68/3010.232.178.69 – 10.232.178.7010.232.178.71
1910.232.178.72/3010.232.178.73 – 10.232.178.7410.232.178.75
2010.232.178.76/3010.232.178.77 – 10.232.178.7810.232.178.79
2110.232.178.80/3010.232.178.81 – 10.232.178.8210.232.178.83
2210.232.178.84/3010.232.178.85 – 10.232.178.8610.232.178.87
2310.232.178.88/3010.232.178.89 – 10.232.178.9010.232.178.91
2410.232.178.92/3010.232.178.93 – 10.232.178.9410.232.178.95
2510.232.178.96/3010.232.178.97 – 10.232.178.9810.232.178.99
2610.232.178.100/3010.232.178.101 – 10.232.178.10210.232.178.103
2710.232.178.104/3010.232.178.105 – 10.232.178.10610.232.178.107
2810.232.178.108/3010.232.178.109 – 10.232.178.11010.232.178.111
2910.232.178.112/3010.232.178.113 – 10.232.178.11410.232.178.115
3010.232.178.116/3010.232.178.117 – 10.232.178.11810.232.178.119
3110.232.178.120/3010.232.178.121 – 10.232.178.12210.232.178.123
3210.232.178.124/3010.232.178.125 – 10.232.178.12610.232.178.127
3310.232.178.128/3010.232.178.129 – 10.232.178.13010.232.178.131
3410.232.178.132/3010.232.178.133 – 10.232.178.13410.232.178.135
3510.232.178.136/3010.232.178.137 – 10.232.178.13810.232.178.139
3610.232.178.140/3010.232.178.141 – 10.232.178.14210.232.178.143
3710.232.178.144/3010.232.178.145 – 10.232.178.14610.232.178.147
3810.232.178.148/3010.232.178.149 – 10.232.178.15010.232.178.151
3910.232.178.152/3010.232.178.153 – 10.232.178.15410.232.178.155
4010.232.178.156/3010.232.178.157 – 10.232.178.15810.232.178.159
4110.232.178.160/3010.232.178.161 – 10.232.178.16210.232.178.163
4210.232.178.164/3010.232.178.165 – 10.232.178.16610.232.178.167
4310.232.178.168/3010.232.178.169 – 10.232.178.17010.232.178.171
4410.232.178.172/3010.232.178.173 – 10.232.178.17410.232.178.175
4510.232.178.176/3010.232.178.177 – 10.232.178.17810.232.178.179
4610.232.178.180/3010.232.178.181 – 10.232.178.18210.232.178.183
4710.232.178.184/3010.232.178.185 – 10.232.178.18610.232.178.187
4810.232.178.188/3010.232.178.189 – 10.232.178.19010.232.178.191
4910.232.178.192/3010.232.178.193 – 10.232.178.19410.232.178.195
5010.232.178.196/3010.232.178.197 – 10.232.178.19810.232.178.199
5110.232.178.200/3010.232.178.201 – 10.232.178.20210.232.178.203
5210.232.178.204/3010.232.178.205 – 10.232.178.20610.232.178.207
5310.232.178.208/3010.232.178.209 – 10.232.178.21010.232.178.211
5410.232.178.212/3010.232.178.213 – 10.232.178.21410.232.178.215
5510.232.178.216/3010.232.178.217 – 10.232.178.21810.232.178.219
5610.232.178.220/3010.232.178.221 – 10.232.178.22210.232.178.223
5710.232.178.224/3010.232.178.225 – 10.232.178.22610.232.178.227
5810.232.178.228/3010.232.178.229 – 10.232.178.23010.232.178.231
5910.232.178.232/3010.232.178.233 – 10.232.178.23410.232.178.235
6010.232.178.236/3010.232.178.237 – 10.232.178.23810.232.178.239
6110.232.178.240/3010.232.178.241 – 10.232.178.24210.232.178.243
6210.232.178.244/3010.232.178.245 – 10.232.178.24610.232.178.247
6310.232.178.248/3010.232.178.249 – 10.232.178.25010.232.178.251
6410.232.178.252/3010.232.178.253 – 10.232.178.25410.232.178.255
6510.232.179.0/3010.232.179.1 – 10.232.179.210.232.179.3
6610.232.179.4/3010.232.179.5 – 10.232.179.610.232.179.7
6710.232.179.8/3010.232.179.9 – 10.232.179.1010.232.179.11
6810.232.179.12/3010.232.179.13 – 10.232.179.1410.232.179.15
6910.232.179.16/3010.232.179.17 – 10.232.179.1810.232.179.19
7010.232.179.20/3010.232.179.21 – 10.232.179.2210.232.179.23
7110.232.179.24/3010.232.179.25 – 10.232.179.2610.232.179.27
7210.232.179.28/3010.232.179.29 – 10.232.179.3010.232.179.31
7310.232.179.32/3010.232.179.33 – 10.232.179.3410.232.179.35
7410.232.179.36/3010.232.179.37 – 10.232.179.3810.232.179.39
7510.232.179.40/3010.232.179.41 – 10.232.179.4210.232.179.43
7610.232.179.44/3010.232.179.45 – 10.232.179.4610.232.179.47
7710.232.179.48/3010.232.179.49 – 10.232.179.5010.232.179.51
7810.232.179.52/3010.232.179.53 – 10.232.179.5410.232.179.55
7910.232.179.56/3010.232.179.57 – 10.232.179.5810.232.179.59
8010.232.179.60/3010.232.179.61 – 10.232.179.6210.232.179.63
8110.232.179.64/3010.232.179.65 – 10.232.179.6610.232.179.67
8210.232.179.68/3010.232.179.69 – 10.232.179.7010.232.179.71
8310.232.179.72/3010.232.179.73 – 10.232.179.7410.232.179.75
8410.232.179.76/3010.232.179.77 – 10.232.179.7810.232.179.79
8510.232.179.80/3010.232.179.81 – 10.232.179.8210.232.179.83
8610.232.179.84/3010.232.179.85 – 10.232.179.8610.232.179.87
8710.232.179.88/3010.232.179.89 – 10.232.179.9010.232.179.91
8810.232.179.92/3010.232.179.93 – 10.232.179.9410.232.179.95
8910.232.179.96/3010.232.179.97 – 10.232.179.9810.232.179.99
9010.232.179.100/3010.232.179.101 – 10.232.179.10210.232.179.103
9110.232.179.104/3010.232.179.105 – 10.232.179.10610.232.179.107
9210.232.179.108/3010.232.179.109 – 10.232.179.11010.232.179.111
9310.232.179.112/3010.232.179.113 – 10.232.179.11410.232.179.115
9410.232.179.116/3010.232.179.117 – 10.232.179.11810.232.179.119
9510.232.179.120/3010.232.179.121 – 10.232.179.12210.232.179.123
9610.232.179.124/3010.232.179.125 – 10.232.179.12610.232.179.127
9710.232.179.128/3010.232.179.129 – 10.232.179.13010.232.179.131
9810.232.179.132/3010.232.179.133 – 10.232.179.13410.232.179.135
9910.232.179.136/3010.232.179.137 – 10.232.179.13810.232.179.139
10010.232.179.140/3010.232.179.141 – 10.232.179.14210.232.179.143
10110.232.179.144/3010.232.179.145 – 10.232.179.14610.232.179.147
10210.232.179.148/3010.232.179.149 – 10.232.179.15010.232.179.151
10310.232.179.152/3010.232.179.153 – 10.232.179.15410.232.179.155
10410.232.179.156/3010.232.179.157 – 10.232.179.15810.232.179.159
10510.232.179.160/3010.232.179.161 – 10.232.179.16210.232.179.163
10610.232.179.164/3010.232.179.165 – 10.232.179.16610.232.179.167
10710.232.179.168/3010.232.179.169 – 10.232.179.17010.232.179.171
10810.232.179.172/3010.232.179.173 – 10.232.179.17410.232.179.175
10910.232.179.176/3010.232.179.177 – 10.232.179.17810.232.179.179
11010.232.179.180/3010.232.179.181 – 10.232.179.18210.232.179.183
11110.232.179.184/3010.232.179.185 – 10.232.179.18610.232.179.187
11210.232.179.188/3010.232.179.189 – 10.232.179.19010.232.179.191
11310.232.179.192/3010.232.179.193 – 10.232.179.19410.232.179.195
11410.232.179.196/3010.232.179.197 – 10.232.179.19810.232.179.199
11510.232.179.200/3010.232.179.201 – 10.232.179.20210.232.179.203
11610.232.179.204/3010.232.179.205 – 10.232.179.20610.232.179.207
11710.232.179.208/3010.232.179.209 – 10.232.179.21010.232.179.211
11810.232.179.212/3010.232.179.213 – 10.232.179.21410.232.179.215
11910.232.179.216/3010.232.179.217 – 10.232.179.21810.232.179.219
12010.232.179.220/3010.232.179.221 – 10.232.179.22210.232.179.223
12110.232.179.224/3010.232.179.225 – 10.232.179.22610.232.179.227
12210.232.179.228/3010.232.179.229 – 10.232.179.23010.232.179.231
12310.232.179.232/3010.232.179.233 – 10.232.179.23410.232.179.235
12410.232.179.236/3010.232.179.237 – 10.232.179.23810.232.179.239
12510.232.179.240/3010.232.179.241 – 10.232.179.24210.232.179.243
12610.232.179.244/3010.232.179.245 – 10.232.179.24610.232.179.247
12710.232.179.248/3010.232.179.249 – 10.232.179.25010.232.179.251
12810.232.179.252/3010.232.179.253 – 10.232.179.25410.232.179.255
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 →