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)10.2.110.0/23
network10.2.110.0/23
broadcast10.2.111.255
first host10.2.110.1
last host10.2.111.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.2.110.0/23
address00001010.00000010.01101110.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.00000010.01101110.00000000
broadcast00001010.00000010.01101111.11111111
green = network part, grey = host part
hex0x0a026e00
decimal167931392
reverse dns0.110.2.10.in-addr.arpa
ipv4-mapped::ffff:a02:6e00

/23 split into /30 · 128 subnets

close ×
#networkhost rangebroadcast
110.2.110.0/3010.2.110.1 – 10.2.110.210.2.110.3
210.2.110.4/3010.2.110.5 – 10.2.110.610.2.110.7
310.2.110.8/3010.2.110.9 – 10.2.110.1010.2.110.11
410.2.110.12/3010.2.110.13 – 10.2.110.1410.2.110.15
510.2.110.16/3010.2.110.17 – 10.2.110.1810.2.110.19
610.2.110.20/3010.2.110.21 – 10.2.110.2210.2.110.23
710.2.110.24/3010.2.110.25 – 10.2.110.2610.2.110.27
810.2.110.28/3010.2.110.29 – 10.2.110.3010.2.110.31
910.2.110.32/3010.2.110.33 – 10.2.110.3410.2.110.35
1010.2.110.36/3010.2.110.37 – 10.2.110.3810.2.110.39
1110.2.110.40/3010.2.110.41 – 10.2.110.4210.2.110.43
1210.2.110.44/3010.2.110.45 – 10.2.110.4610.2.110.47
1310.2.110.48/3010.2.110.49 – 10.2.110.5010.2.110.51
1410.2.110.52/3010.2.110.53 – 10.2.110.5410.2.110.55
1510.2.110.56/3010.2.110.57 – 10.2.110.5810.2.110.59
1610.2.110.60/3010.2.110.61 – 10.2.110.6210.2.110.63
1710.2.110.64/3010.2.110.65 – 10.2.110.6610.2.110.67
1810.2.110.68/3010.2.110.69 – 10.2.110.7010.2.110.71
1910.2.110.72/3010.2.110.73 – 10.2.110.7410.2.110.75
2010.2.110.76/3010.2.110.77 – 10.2.110.7810.2.110.79
2110.2.110.80/3010.2.110.81 – 10.2.110.8210.2.110.83
2210.2.110.84/3010.2.110.85 – 10.2.110.8610.2.110.87
2310.2.110.88/3010.2.110.89 – 10.2.110.9010.2.110.91
2410.2.110.92/3010.2.110.93 – 10.2.110.9410.2.110.95
2510.2.110.96/3010.2.110.97 – 10.2.110.9810.2.110.99
2610.2.110.100/3010.2.110.101 – 10.2.110.10210.2.110.103
2710.2.110.104/3010.2.110.105 – 10.2.110.10610.2.110.107
2810.2.110.108/3010.2.110.109 – 10.2.110.11010.2.110.111
2910.2.110.112/3010.2.110.113 – 10.2.110.11410.2.110.115
3010.2.110.116/3010.2.110.117 – 10.2.110.11810.2.110.119
3110.2.110.120/3010.2.110.121 – 10.2.110.12210.2.110.123
3210.2.110.124/3010.2.110.125 – 10.2.110.12610.2.110.127
3310.2.110.128/3010.2.110.129 – 10.2.110.13010.2.110.131
3410.2.110.132/3010.2.110.133 – 10.2.110.13410.2.110.135
3510.2.110.136/3010.2.110.137 – 10.2.110.13810.2.110.139
3610.2.110.140/3010.2.110.141 – 10.2.110.14210.2.110.143
3710.2.110.144/3010.2.110.145 – 10.2.110.14610.2.110.147
3810.2.110.148/3010.2.110.149 – 10.2.110.15010.2.110.151
3910.2.110.152/3010.2.110.153 – 10.2.110.15410.2.110.155
4010.2.110.156/3010.2.110.157 – 10.2.110.15810.2.110.159
4110.2.110.160/3010.2.110.161 – 10.2.110.16210.2.110.163
4210.2.110.164/3010.2.110.165 – 10.2.110.16610.2.110.167
4310.2.110.168/3010.2.110.169 – 10.2.110.17010.2.110.171
4410.2.110.172/3010.2.110.173 – 10.2.110.17410.2.110.175
4510.2.110.176/3010.2.110.177 – 10.2.110.17810.2.110.179
4610.2.110.180/3010.2.110.181 – 10.2.110.18210.2.110.183
4710.2.110.184/3010.2.110.185 – 10.2.110.18610.2.110.187
4810.2.110.188/3010.2.110.189 – 10.2.110.19010.2.110.191
4910.2.110.192/3010.2.110.193 – 10.2.110.19410.2.110.195
5010.2.110.196/3010.2.110.197 – 10.2.110.19810.2.110.199
5110.2.110.200/3010.2.110.201 – 10.2.110.20210.2.110.203
5210.2.110.204/3010.2.110.205 – 10.2.110.20610.2.110.207
5310.2.110.208/3010.2.110.209 – 10.2.110.21010.2.110.211
5410.2.110.212/3010.2.110.213 – 10.2.110.21410.2.110.215
5510.2.110.216/3010.2.110.217 – 10.2.110.21810.2.110.219
5610.2.110.220/3010.2.110.221 – 10.2.110.22210.2.110.223
5710.2.110.224/3010.2.110.225 – 10.2.110.22610.2.110.227
5810.2.110.228/3010.2.110.229 – 10.2.110.23010.2.110.231
5910.2.110.232/3010.2.110.233 – 10.2.110.23410.2.110.235
6010.2.110.236/3010.2.110.237 – 10.2.110.23810.2.110.239
6110.2.110.240/3010.2.110.241 – 10.2.110.24210.2.110.243
6210.2.110.244/3010.2.110.245 – 10.2.110.24610.2.110.247
6310.2.110.248/3010.2.110.249 – 10.2.110.25010.2.110.251
6410.2.110.252/3010.2.110.253 – 10.2.110.25410.2.110.255
6510.2.111.0/3010.2.111.1 – 10.2.111.210.2.111.3
6610.2.111.4/3010.2.111.5 – 10.2.111.610.2.111.7
6710.2.111.8/3010.2.111.9 – 10.2.111.1010.2.111.11
6810.2.111.12/3010.2.111.13 – 10.2.111.1410.2.111.15
6910.2.111.16/3010.2.111.17 – 10.2.111.1810.2.111.19
7010.2.111.20/3010.2.111.21 – 10.2.111.2210.2.111.23
7110.2.111.24/3010.2.111.25 – 10.2.111.2610.2.111.27
7210.2.111.28/3010.2.111.29 – 10.2.111.3010.2.111.31
7310.2.111.32/3010.2.111.33 – 10.2.111.3410.2.111.35
7410.2.111.36/3010.2.111.37 – 10.2.111.3810.2.111.39
7510.2.111.40/3010.2.111.41 – 10.2.111.4210.2.111.43
7610.2.111.44/3010.2.111.45 – 10.2.111.4610.2.111.47
7710.2.111.48/3010.2.111.49 – 10.2.111.5010.2.111.51
7810.2.111.52/3010.2.111.53 – 10.2.111.5410.2.111.55
7910.2.111.56/3010.2.111.57 – 10.2.111.5810.2.111.59
8010.2.111.60/3010.2.111.61 – 10.2.111.6210.2.111.63
8110.2.111.64/3010.2.111.65 – 10.2.111.6610.2.111.67
8210.2.111.68/3010.2.111.69 – 10.2.111.7010.2.111.71
8310.2.111.72/3010.2.111.73 – 10.2.111.7410.2.111.75
8410.2.111.76/3010.2.111.77 – 10.2.111.7810.2.111.79
8510.2.111.80/3010.2.111.81 – 10.2.111.8210.2.111.83
8610.2.111.84/3010.2.111.85 – 10.2.111.8610.2.111.87
8710.2.111.88/3010.2.111.89 – 10.2.111.9010.2.111.91
8810.2.111.92/3010.2.111.93 – 10.2.111.9410.2.111.95
8910.2.111.96/3010.2.111.97 – 10.2.111.9810.2.111.99
9010.2.111.100/3010.2.111.101 – 10.2.111.10210.2.111.103
9110.2.111.104/3010.2.111.105 – 10.2.111.10610.2.111.107
9210.2.111.108/3010.2.111.109 – 10.2.111.11010.2.111.111
9310.2.111.112/3010.2.111.113 – 10.2.111.11410.2.111.115
9410.2.111.116/3010.2.111.117 – 10.2.111.11810.2.111.119
9510.2.111.120/3010.2.111.121 – 10.2.111.12210.2.111.123
9610.2.111.124/3010.2.111.125 – 10.2.111.12610.2.111.127
9710.2.111.128/3010.2.111.129 – 10.2.111.13010.2.111.131
9810.2.111.132/3010.2.111.133 – 10.2.111.13410.2.111.135
9910.2.111.136/3010.2.111.137 – 10.2.111.13810.2.111.139
10010.2.111.140/3010.2.111.141 – 10.2.111.14210.2.111.143
10110.2.111.144/3010.2.111.145 – 10.2.111.14610.2.111.147
10210.2.111.148/3010.2.111.149 – 10.2.111.15010.2.111.151
10310.2.111.152/3010.2.111.153 – 10.2.111.15410.2.111.155
10410.2.111.156/3010.2.111.157 – 10.2.111.15810.2.111.159
10510.2.111.160/3010.2.111.161 – 10.2.111.16210.2.111.163
10610.2.111.164/3010.2.111.165 – 10.2.111.16610.2.111.167
10710.2.111.168/3010.2.111.169 – 10.2.111.17010.2.111.171
10810.2.111.172/3010.2.111.173 – 10.2.111.17410.2.111.175
10910.2.111.176/3010.2.111.177 – 10.2.111.17810.2.111.179
11010.2.111.180/3010.2.111.181 – 10.2.111.18210.2.111.183
11110.2.111.184/3010.2.111.185 – 10.2.111.18610.2.111.187
11210.2.111.188/3010.2.111.189 – 10.2.111.19010.2.111.191
11310.2.111.192/3010.2.111.193 – 10.2.111.19410.2.111.195
11410.2.111.196/3010.2.111.197 – 10.2.111.19810.2.111.199
11510.2.111.200/3010.2.111.201 – 10.2.111.20210.2.111.203
11610.2.111.204/3010.2.111.205 – 10.2.111.20610.2.111.207
11710.2.111.208/3010.2.111.209 – 10.2.111.21010.2.111.211
11810.2.111.212/3010.2.111.213 – 10.2.111.21410.2.111.215
11910.2.111.216/3010.2.111.217 – 10.2.111.21810.2.111.219
12010.2.111.220/3010.2.111.221 – 10.2.111.22210.2.111.223
12110.2.111.224/3010.2.111.225 – 10.2.111.22610.2.111.227
12210.2.111.228/3010.2.111.229 – 10.2.111.23010.2.111.231
12310.2.111.232/3010.2.111.233 – 10.2.111.23410.2.111.235
12410.2.111.236/3010.2.111.237 – 10.2.111.23810.2.111.239
12510.2.111.240/3010.2.111.241 – 10.2.111.24210.2.111.243
12610.2.111.244/3010.2.111.245 – 10.2.111.24610.2.111.247
12710.2.111.248/3010.2.111.249 – 10.2.111.25010.2.111.251
12810.2.111.252/3010.2.111.253 – 10.2.111.25410.2.111.255
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 →