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)10.89.92.0/23
network10.89.92.0/23
broadcast10.89.93.255
first host10.89.92.1
last host10.89.93.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.89.92.0/23
address00001010.01011001.01011100.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.01011001.01011100.00000000
broadcast00001010.01011001.01011101.11111111
green = network part, grey = host part
hex0x0a595c00
decimal173628416
reverse dns0.92.89.10.in-addr.arpa
ipv4-mapped::ffff:a59:5c00

/23 split into /30 · 128 subnets

close ×
#networkhost rangebroadcast
110.89.92.0/3010.89.92.1 – 10.89.92.210.89.92.3
210.89.92.4/3010.89.92.5 – 10.89.92.610.89.92.7
310.89.92.8/3010.89.92.9 – 10.89.92.1010.89.92.11
410.89.92.12/3010.89.92.13 – 10.89.92.1410.89.92.15
510.89.92.16/3010.89.92.17 – 10.89.92.1810.89.92.19
610.89.92.20/3010.89.92.21 – 10.89.92.2210.89.92.23
710.89.92.24/3010.89.92.25 – 10.89.92.2610.89.92.27
810.89.92.28/3010.89.92.29 – 10.89.92.3010.89.92.31
910.89.92.32/3010.89.92.33 – 10.89.92.3410.89.92.35
1010.89.92.36/3010.89.92.37 – 10.89.92.3810.89.92.39
1110.89.92.40/3010.89.92.41 – 10.89.92.4210.89.92.43
1210.89.92.44/3010.89.92.45 – 10.89.92.4610.89.92.47
1310.89.92.48/3010.89.92.49 – 10.89.92.5010.89.92.51
1410.89.92.52/3010.89.92.53 – 10.89.92.5410.89.92.55
1510.89.92.56/3010.89.92.57 – 10.89.92.5810.89.92.59
1610.89.92.60/3010.89.92.61 – 10.89.92.6210.89.92.63
1710.89.92.64/3010.89.92.65 – 10.89.92.6610.89.92.67
1810.89.92.68/3010.89.92.69 – 10.89.92.7010.89.92.71
1910.89.92.72/3010.89.92.73 – 10.89.92.7410.89.92.75
2010.89.92.76/3010.89.92.77 – 10.89.92.7810.89.92.79
2110.89.92.80/3010.89.92.81 – 10.89.92.8210.89.92.83
2210.89.92.84/3010.89.92.85 – 10.89.92.8610.89.92.87
2310.89.92.88/3010.89.92.89 – 10.89.92.9010.89.92.91
2410.89.92.92/3010.89.92.93 – 10.89.92.9410.89.92.95
2510.89.92.96/3010.89.92.97 – 10.89.92.9810.89.92.99
2610.89.92.100/3010.89.92.101 – 10.89.92.10210.89.92.103
2710.89.92.104/3010.89.92.105 – 10.89.92.10610.89.92.107
2810.89.92.108/3010.89.92.109 – 10.89.92.11010.89.92.111
2910.89.92.112/3010.89.92.113 – 10.89.92.11410.89.92.115
3010.89.92.116/3010.89.92.117 – 10.89.92.11810.89.92.119
3110.89.92.120/3010.89.92.121 – 10.89.92.12210.89.92.123
3210.89.92.124/3010.89.92.125 – 10.89.92.12610.89.92.127
3310.89.92.128/3010.89.92.129 – 10.89.92.13010.89.92.131
3410.89.92.132/3010.89.92.133 – 10.89.92.13410.89.92.135
3510.89.92.136/3010.89.92.137 – 10.89.92.13810.89.92.139
3610.89.92.140/3010.89.92.141 – 10.89.92.14210.89.92.143
3710.89.92.144/3010.89.92.145 – 10.89.92.14610.89.92.147
3810.89.92.148/3010.89.92.149 – 10.89.92.15010.89.92.151
3910.89.92.152/3010.89.92.153 – 10.89.92.15410.89.92.155
4010.89.92.156/3010.89.92.157 – 10.89.92.15810.89.92.159
4110.89.92.160/3010.89.92.161 – 10.89.92.16210.89.92.163
4210.89.92.164/3010.89.92.165 – 10.89.92.16610.89.92.167
4310.89.92.168/3010.89.92.169 – 10.89.92.17010.89.92.171
4410.89.92.172/3010.89.92.173 – 10.89.92.17410.89.92.175
4510.89.92.176/3010.89.92.177 – 10.89.92.17810.89.92.179
4610.89.92.180/3010.89.92.181 – 10.89.92.18210.89.92.183
4710.89.92.184/3010.89.92.185 – 10.89.92.18610.89.92.187
4810.89.92.188/3010.89.92.189 – 10.89.92.19010.89.92.191
4910.89.92.192/3010.89.92.193 – 10.89.92.19410.89.92.195
5010.89.92.196/3010.89.92.197 – 10.89.92.19810.89.92.199
5110.89.92.200/3010.89.92.201 – 10.89.92.20210.89.92.203
5210.89.92.204/3010.89.92.205 – 10.89.92.20610.89.92.207
5310.89.92.208/3010.89.92.209 – 10.89.92.21010.89.92.211
5410.89.92.212/3010.89.92.213 – 10.89.92.21410.89.92.215
5510.89.92.216/3010.89.92.217 – 10.89.92.21810.89.92.219
5610.89.92.220/3010.89.92.221 – 10.89.92.22210.89.92.223
5710.89.92.224/3010.89.92.225 – 10.89.92.22610.89.92.227
5810.89.92.228/3010.89.92.229 – 10.89.92.23010.89.92.231
5910.89.92.232/3010.89.92.233 – 10.89.92.23410.89.92.235
6010.89.92.236/3010.89.92.237 – 10.89.92.23810.89.92.239
6110.89.92.240/3010.89.92.241 – 10.89.92.24210.89.92.243
6210.89.92.244/3010.89.92.245 – 10.89.92.24610.89.92.247
6310.89.92.248/3010.89.92.249 – 10.89.92.25010.89.92.251
6410.89.92.252/3010.89.92.253 – 10.89.92.25410.89.92.255
6510.89.93.0/3010.89.93.1 – 10.89.93.210.89.93.3
6610.89.93.4/3010.89.93.5 – 10.89.93.610.89.93.7
6710.89.93.8/3010.89.93.9 – 10.89.93.1010.89.93.11
6810.89.93.12/3010.89.93.13 – 10.89.93.1410.89.93.15
6910.89.93.16/3010.89.93.17 – 10.89.93.1810.89.93.19
7010.89.93.20/3010.89.93.21 – 10.89.93.2210.89.93.23
7110.89.93.24/3010.89.93.25 – 10.89.93.2610.89.93.27
7210.89.93.28/3010.89.93.29 – 10.89.93.3010.89.93.31
7310.89.93.32/3010.89.93.33 – 10.89.93.3410.89.93.35
7410.89.93.36/3010.89.93.37 – 10.89.93.3810.89.93.39
7510.89.93.40/3010.89.93.41 – 10.89.93.4210.89.93.43
7610.89.93.44/3010.89.93.45 – 10.89.93.4610.89.93.47
7710.89.93.48/3010.89.93.49 – 10.89.93.5010.89.93.51
7810.89.93.52/3010.89.93.53 – 10.89.93.5410.89.93.55
7910.89.93.56/3010.89.93.57 – 10.89.93.5810.89.93.59
8010.89.93.60/3010.89.93.61 – 10.89.93.6210.89.93.63
8110.89.93.64/3010.89.93.65 – 10.89.93.6610.89.93.67
8210.89.93.68/3010.89.93.69 – 10.89.93.7010.89.93.71
8310.89.93.72/3010.89.93.73 – 10.89.93.7410.89.93.75
8410.89.93.76/3010.89.93.77 – 10.89.93.7810.89.93.79
8510.89.93.80/3010.89.93.81 – 10.89.93.8210.89.93.83
8610.89.93.84/3010.89.93.85 – 10.89.93.8610.89.93.87
8710.89.93.88/3010.89.93.89 – 10.89.93.9010.89.93.91
8810.89.93.92/3010.89.93.93 – 10.89.93.9410.89.93.95
8910.89.93.96/3010.89.93.97 – 10.89.93.9810.89.93.99
9010.89.93.100/3010.89.93.101 – 10.89.93.10210.89.93.103
9110.89.93.104/3010.89.93.105 – 10.89.93.10610.89.93.107
9210.89.93.108/3010.89.93.109 – 10.89.93.11010.89.93.111
9310.89.93.112/3010.89.93.113 – 10.89.93.11410.89.93.115
9410.89.93.116/3010.89.93.117 – 10.89.93.11810.89.93.119
9510.89.93.120/3010.89.93.121 – 10.89.93.12210.89.93.123
9610.89.93.124/3010.89.93.125 – 10.89.93.12610.89.93.127
9710.89.93.128/3010.89.93.129 – 10.89.93.13010.89.93.131
9810.89.93.132/3010.89.93.133 – 10.89.93.13410.89.93.135
9910.89.93.136/3010.89.93.137 – 10.89.93.13810.89.93.139
10010.89.93.140/3010.89.93.141 – 10.89.93.14210.89.93.143
10110.89.93.144/3010.89.93.145 – 10.89.93.14610.89.93.147
10210.89.93.148/3010.89.93.149 – 10.89.93.15010.89.93.151
10310.89.93.152/3010.89.93.153 – 10.89.93.15410.89.93.155
10410.89.93.156/3010.89.93.157 – 10.89.93.15810.89.93.159
10510.89.93.160/3010.89.93.161 – 10.89.93.16210.89.93.163
10610.89.93.164/3010.89.93.165 – 10.89.93.16610.89.93.167
10710.89.93.168/3010.89.93.169 – 10.89.93.17010.89.93.171
10810.89.93.172/3010.89.93.173 – 10.89.93.17410.89.93.175
10910.89.93.176/3010.89.93.177 – 10.89.93.17810.89.93.179
11010.89.93.180/3010.89.93.181 – 10.89.93.18210.89.93.183
11110.89.93.184/3010.89.93.185 – 10.89.93.18610.89.93.187
11210.89.93.188/3010.89.93.189 – 10.89.93.19010.89.93.191
11310.89.93.192/3010.89.93.193 – 10.89.93.19410.89.93.195
11410.89.93.196/3010.89.93.197 – 10.89.93.19810.89.93.199
11510.89.93.200/3010.89.93.201 – 10.89.93.20210.89.93.203
11610.89.93.204/3010.89.93.205 – 10.89.93.20610.89.93.207
11710.89.93.208/3010.89.93.209 – 10.89.93.21010.89.93.211
11810.89.93.212/3010.89.93.213 – 10.89.93.21410.89.93.215
11910.89.93.216/3010.89.93.217 – 10.89.93.21810.89.93.219
12010.89.93.220/3010.89.93.221 – 10.89.93.22210.89.93.223
12110.89.93.224/3010.89.93.225 – 10.89.93.22610.89.93.227
12210.89.93.228/3010.89.93.229 – 10.89.93.23010.89.93.231
12310.89.93.232/3010.89.93.233 – 10.89.93.23410.89.93.235
12410.89.93.236/3010.89.93.237 – 10.89.93.23810.89.93.239
12510.89.93.240/3010.89.93.241 – 10.89.93.24210.89.93.243
12610.89.93.244/3010.89.93.245 – 10.89.93.24610.89.93.247
12710.89.93.248/3010.89.93.249 – 10.89.93.25010.89.93.251
12810.89.93.252/3010.89.93.253 – 10.89.93.25410.89.93.255
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 →