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)10.83.86.0/23
network10.83.86.0/23
broadcast10.83.87.255
first host10.83.86.1
last host10.83.87.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.83.86.0/23
address00001010.01010011.01010110.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.01010011.01010110.00000000
broadcast00001010.01010011.01010111.11111111
green = network part, grey = host part
hex0x0a535600
decimal173233664
reverse dns0.86.83.10.in-addr.arpa
ipv4-mapped::ffff:a53:5600

/23 split into /30 · 128 subnets

close ×
#networkhost rangebroadcast
110.83.86.0/3010.83.86.1 – 10.83.86.210.83.86.3
210.83.86.4/3010.83.86.5 – 10.83.86.610.83.86.7
310.83.86.8/3010.83.86.9 – 10.83.86.1010.83.86.11
410.83.86.12/3010.83.86.13 – 10.83.86.1410.83.86.15
510.83.86.16/3010.83.86.17 – 10.83.86.1810.83.86.19
610.83.86.20/3010.83.86.21 – 10.83.86.2210.83.86.23
710.83.86.24/3010.83.86.25 – 10.83.86.2610.83.86.27
810.83.86.28/3010.83.86.29 – 10.83.86.3010.83.86.31
910.83.86.32/3010.83.86.33 – 10.83.86.3410.83.86.35
1010.83.86.36/3010.83.86.37 – 10.83.86.3810.83.86.39
1110.83.86.40/3010.83.86.41 – 10.83.86.4210.83.86.43
1210.83.86.44/3010.83.86.45 – 10.83.86.4610.83.86.47
1310.83.86.48/3010.83.86.49 – 10.83.86.5010.83.86.51
1410.83.86.52/3010.83.86.53 – 10.83.86.5410.83.86.55
1510.83.86.56/3010.83.86.57 – 10.83.86.5810.83.86.59
1610.83.86.60/3010.83.86.61 – 10.83.86.6210.83.86.63
1710.83.86.64/3010.83.86.65 – 10.83.86.6610.83.86.67
1810.83.86.68/3010.83.86.69 – 10.83.86.7010.83.86.71
1910.83.86.72/3010.83.86.73 – 10.83.86.7410.83.86.75
2010.83.86.76/3010.83.86.77 – 10.83.86.7810.83.86.79
2110.83.86.80/3010.83.86.81 – 10.83.86.8210.83.86.83
2210.83.86.84/3010.83.86.85 – 10.83.86.8610.83.86.87
2310.83.86.88/3010.83.86.89 – 10.83.86.9010.83.86.91
2410.83.86.92/3010.83.86.93 – 10.83.86.9410.83.86.95
2510.83.86.96/3010.83.86.97 – 10.83.86.9810.83.86.99
2610.83.86.100/3010.83.86.101 – 10.83.86.10210.83.86.103
2710.83.86.104/3010.83.86.105 – 10.83.86.10610.83.86.107
2810.83.86.108/3010.83.86.109 – 10.83.86.11010.83.86.111
2910.83.86.112/3010.83.86.113 – 10.83.86.11410.83.86.115
3010.83.86.116/3010.83.86.117 – 10.83.86.11810.83.86.119
3110.83.86.120/3010.83.86.121 – 10.83.86.12210.83.86.123
3210.83.86.124/3010.83.86.125 – 10.83.86.12610.83.86.127
3310.83.86.128/3010.83.86.129 – 10.83.86.13010.83.86.131
3410.83.86.132/3010.83.86.133 – 10.83.86.13410.83.86.135
3510.83.86.136/3010.83.86.137 – 10.83.86.13810.83.86.139
3610.83.86.140/3010.83.86.141 – 10.83.86.14210.83.86.143
3710.83.86.144/3010.83.86.145 – 10.83.86.14610.83.86.147
3810.83.86.148/3010.83.86.149 – 10.83.86.15010.83.86.151
3910.83.86.152/3010.83.86.153 – 10.83.86.15410.83.86.155
4010.83.86.156/3010.83.86.157 – 10.83.86.15810.83.86.159
4110.83.86.160/3010.83.86.161 – 10.83.86.16210.83.86.163
4210.83.86.164/3010.83.86.165 – 10.83.86.16610.83.86.167
4310.83.86.168/3010.83.86.169 – 10.83.86.17010.83.86.171
4410.83.86.172/3010.83.86.173 – 10.83.86.17410.83.86.175
4510.83.86.176/3010.83.86.177 – 10.83.86.17810.83.86.179
4610.83.86.180/3010.83.86.181 – 10.83.86.18210.83.86.183
4710.83.86.184/3010.83.86.185 – 10.83.86.18610.83.86.187
4810.83.86.188/3010.83.86.189 – 10.83.86.19010.83.86.191
4910.83.86.192/3010.83.86.193 – 10.83.86.19410.83.86.195
5010.83.86.196/3010.83.86.197 – 10.83.86.19810.83.86.199
5110.83.86.200/3010.83.86.201 – 10.83.86.20210.83.86.203
5210.83.86.204/3010.83.86.205 – 10.83.86.20610.83.86.207
5310.83.86.208/3010.83.86.209 – 10.83.86.21010.83.86.211
5410.83.86.212/3010.83.86.213 – 10.83.86.21410.83.86.215
5510.83.86.216/3010.83.86.217 – 10.83.86.21810.83.86.219
5610.83.86.220/3010.83.86.221 – 10.83.86.22210.83.86.223
5710.83.86.224/3010.83.86.225 – 10.83.86.22610.83.86.227
5810.83.86.228/3010.83.86.229 – 10.83.86.23010.83.86.231
5910.83.86.232/3010.83.86.233 – 10.83.86.23410.83.86.235
6010.83.86.236/3010.83.86.237 – 10.83.86.23810.83.86.239
6110.83.86.240/3010.83.86.241 – 10.83.86.24210.83.86.243
6210.83.86.244/3010.83.86.245 – 10.83.86.24610.83.86.247
6310.83.86.248/3010.83.86.249 – 10.83.86.25010.83.86.251
6410.83.86.252/3010.83.86.253 – 10.83.86.25410.83.86.255
6510.83.87.0/3010.83.87.1 – 10.83.87.210.83.87.3
6610.83.87.4/3010.83.87.5 – 10.83.87.610.83.87.7
6710.83.87.8/3010.83.87.9 – 10.83.87.1010.83.87.11
6810.83.87.12/3010.83.87.13 – 10.83.87.1410.83.87.15
6910.83.87.16/3010.83.87.17 – 10.83.87.1810.83.87.19
7010.83.87.20/3010.83.87.21 – 10.83.87.2210.83.87.23
7110.83.87.24/3010.83.87.25 – 10.83.87.2610.83.87.27
7210.83.87.28/3010.83.87.29 – 10.83.87.3010.83.87.31
7310.83.87.32/3010.83.87.33 – 10.83.87.3410.83.87.35
7410.83.87.36/3010.83.87.37 – 10.83.87.3810.83.87.39
7510.83.87.40/3010.83.87.41 – 10.83.87.4210.83.87.43
7610.83.87.44/3010.83.87.45 – 10.83.87.4610.83.87.47
7710.83.87.48/3010.83.87.49 – 10.83.87.5010.83.87.51
7810.83.87.52/3010.83.87.53 – 10.83.87.5410.83.87.55
7910.83.87.56/3010.83.87.57 – 10.83.87.5810.83.87.59
8010.83.87.60/3010.83.87.61 – 10.83.87.6210.83.87.63
8110.83.87.64/3010.83.87.65 – 10.83.87.6610.83.87.67
8210.83.87.68/3010.83.87.69 – 10.83.87.7010.83.87.71
8310.83.87.72/3010.83.87.73 – 10.83.87.7410.83.87.75
8410.83.87.76/3010.83.87.77 – 10.83.87.7810.83.87.79
8510.83.87.80/3010.83.87.81 – 10.83.87.8210.83.87.83
8610.83.87.84/3010.83.87.85 – 10.83.87.8610.83.87.87
8710.83.87.88/3010.83.87.89 – 10.83.87.9010.83.87.91
8810.83.87.92/3010.83.87.93 – 10.83.87.9410.83.87.95
8910.83.87.96/3010.83.87.97 – 10.83.87.9810.83.87.99
9010.83.87.100/3010.83.87.101 – 10.83.87.10210.83.87.103
9110.83.87.104/3010.83.87.105 – 10.83.87.10610.83.87.107
9210.83.87.108/3010.83.87.109 – 10.83.87.11010.83.87.111
9310.83.87.112/3010.83.87.113 – 10.83.87.11410.83.87.115
9410.83.87.116/3010.83.87.117 – 10.83.87.11810.83.87.119
9510.83.87.120/3010.83.87.121 – 10.83.87.12210.83.87.123
9610.83.87.124/3010.83.87.125 – 10.83.87.12610.83.87.127
9710.83.87.128/3010.83.87.129 – 10.83.87.13010.83.87.131
9810.83.87.132/3010.83.87.133 – 10.83.87.13410.83.87.135
9910.83.87.136/3010.83.87.137 – 10.83.87.13810.83.87.139
10010.83.87.140/3010.83.87.141 – 10.83.87.14210.83.87.143
10110.83.87.144/3010.83.87.145 – 10.83.87.14610.83.87.147
10210.83.87.148/3010.83.87.149 – 10.83.87.15010.83.87.151
10310.83.87.152/3010.83.87.153 – 10.83.87.15410.83.87.155
10410.83.87.156/3010.83.87.157 – 10.83.87.15810.83.87.159
10510.83.87.160/3010.83.87.161 – 10.83.87.16210.83.87.163
10610.83.87.164/3010.83.87.165 – 10.83.87.16610.83.87.167
10710.83.87.168/3010.83.87.169 – 10.83.87.17010.83.87.171
10810.83.87.172/3010.83.87.173 – 10.83.87.17410.83.87.175
10910.83.87.176/3010.83.87.177 – 10.83.87.17810.83.87.179
11010.83.87.180/3010.83.87.181 – 10.83.87.18210.83.87.183
11110.83.87.184/3010.83.87.185 – 10.83.87.18610.83.87.187
11210.83.87.188/3010.83.87.189 – 10.83.87.19010.83.87.191
11310.83.87.192/3010.83.87.193 – 10.83.87.19410.83.87.195
11410.83.87.196/3010.83.87.197 – 10.83.87.19810.83.87.199
11510.83.87.200/3010.83.87.201 – 10.83.87.20210.83.87.203
11610.83.87.204/3010.83.87.205 – 10.83.87.20610.83.87.207
11710.83.87.208/3010.83.87.209 – 10.83.87.21010.83.87.211
11810.83.87.212/3010.83.87.213 – 10.83.87.21410.83.87.215
11910.83.87.216/3010.83.87.217 – 10.83.87.21810.83.87.219
12010.83.87.220/3010.83.87.221 – 10.83.87.22210.83.87.223
12110.83.87.224/3010.83.87.225 – 10.83.87.22610.83.87.227
12210.83.87.228/3010.83.87.229 – 10.83.87.23010.83.87.231
12310.83.87.232/3010.83.87.233 – 10.83.87.23410.83.87.235
12410.83.87.236/3010.83.87.237 – 10.83.87.23810.83.87.239
12510.83.87.240/3010.83.87.241 – 10.83.87.24210.83.87.243
12610.83.87.244/3010.83.87.245 – 10.83.87.24610.83.87.247
12710.83.87.248/3010.83.87.249 – 10.83.87.25010.83.87.251
12810.83.87.252/3010.83.87.253 – 10.83.87.25410.83.87.255
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 →