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)10.89.48.0/23
network10.89.48.0/23
broadcast10.89.49.255
first host10.89.48.1
last host10.89.49.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.89.48.0/23
address00001010.01011001.00110000.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.01011001.00110000.00000000
broadcast00001010.01011001.00110001.11111111
green = network part, grey = host part
hex0x0a593000
decimal173617152
reverse dns0.48.89.10.in-addr.arpa
ipv4-mapped::ffff:a59:3000

/23 split into /30 · 128 subnets

close ×
#networkhost rangebroadcast
110.89.48.0/3010.89.48.1 – 10.89.48.210.89.48.3
210.89.48.4/3010.89.48.5 – 10.89.48.610.89.48.7
310.89.48.8/3010.89.48.9 – 10.89.48.1010.89.48.11
410.89.48.12/3010.89.48.13 – 10.89.48.1410.89.48.15
510.89.48.16/3010.89.48.17 – 10.89.48.1810.89.48.19
610.89.48.20/3010.89.48.21 – 10.89.48.2210.89.48.23
710.89.48.24/3010.89.48.25 – 10.89.48.2610.89.48.27
810.89.48.28/3010.89.48.29 – 10.89.48.3010.89.48.31
910.89.48.32/3010.89.48.33 – 10.89.48.3410.89.48.35
1010.89.48.36/3010.89.48.37 – 10.89.48.3810.89.48.39
1110.89.48.40/3010.89.48.41 – 10.89.48.4210.89.48.43
1210.89.48.44/3010.89.48.45 – 10.89.48.4610.89.48.47
1310.89.48.48/3010.89.48.49 – 10.89.48.5010.89.48.51
1410.89.48.52/3010.89.48.53 – 10.89.48.5410.89.48.55
1510.89.48.56/3010.89.48.57 – 10.89.48.5810.89.48.59
1610.89.48.60/3010.89.48.61 – 10.89.48.6210.89.48.63
1710.89.48.64/3010.89.48.65 – 10.89.48.6610.89.48.67
1810.89.48.68/3010.89.48.69 – 10.89.48.7010.89.48.71
1910.89.48.72/3010.89.48.73 – 10.89.48.7410.89.48.75
2010.89.48.76/3010.89.48.77 – 10.89.48.7810.89.48.79
2110.89.48.80/3010.89.48.81 – 10.89.48.8210.89.48.83
2210.89.48.84/3010.89.48.85 – 10.89.48.8610.89.48.87
2310.89.48.88/3010.89.48.89 – 10.89.48.9010.89.48.91
2410.89.48.92/3010.89.48.93 – 10.89.48.9410.89.48.95
2510.89.48.96/3010.89.48.97 – 10.89.48.9810.89.48.99
2610.89.48.100/3010.89.48.101 – 10.89.48.10210.89.48.103
2710.89.48.104/3010.89.48.105 – 10.89.48.10610.89.48.107
2810.89.48.108/3010.89.48.109 – 10.89.48.11010.89.48.111
2910.89.48.112/3010.89.48.113 – 10.89.48.11410.89.48.115
3010.89.48.116/3010.89.48.117 – 10.89.48.11810.89.48.119
3110.89.48.120/3010.89.48.121 – 10.89.48.12210.89.48.123
3210.89.48.124/3010.89.48.125 – 10.89.48.12610.89.48.127
3310.89.48.128/3010.89.48.129 – 10.89.48.13010.89.48.131
3410.89.48.132/3010.89.48.133 – 10.89.48.13410.89.48.135
3510.89.48.136/3010.89.48.137 – 10.89.48.13810.89.48.139
3610.89.48.140/3010.89.48.141 – 10.89.48.14210.89.48.143
3710.89.48.144/3010.89.48.145 – 10.89.48.14610.89.48.147
3810.89.48.148/3010.89.48.149 – 10.89.48.15010.89.48.151
3910.89.48.152/3010.89.48.153 – 10.89.48.15410.89.48.155
4010.89.48.156/3010.89.48.157 – 10.89.48.15810.89.48.159
4110.89.48.160/3010.89.48.161 – 10.89.48.16210.89.48.163
4210.89.48.164/3010.89.48.165 – 10.89.48.16610.89.48.167
4310.89.48.168/3010.89.48.169 – 10.89.48.17010.89.48.171
4410.89.48.172/3010.89.48.173 – 10.89.48.17410.89.48.175
4510.89.48.176/3010.89.48.177 – 10.89.48.17810.89.48.179
4610.89.48.180/3010.89.48.181 – 10.89.48.18210.89.48.183
4710.89.48.184/3010.89.48.185 – 10.89.48.18610.89.48.187
4810.89.48.188/3010.89.48.189 – 10.89.48.19010.89.48.191
4910.89.48.192/3010.89.48.193 – 10.89.48.19410.89.48.195
5010.89.48.196/3010.89.48.197 – 10.89.48.19810.89.48.199
5110.89.48.200/3010.89.48.201 – 10.89.48.20210.89.48.203
5210.89.48.204/3010.89.48.205 – 10.89.48.20610.89.48.207
5310.89.48.208/3010.89.48.209 – 10.89.48.21010.89.48.211
5410.89.48.212/3010.89.48.213 – 10.89.48.21410.89.48.215
5510.89.48.216/3010.89.48.217 – 10.89.48.21810.89.48.219
5610.89.48.220/3010.89.48.221 – 10.89.48.22210.89.48.223
5710.89.48.224/3010.89.48.225 – 10.89.48.22610.89.48.227
5810.89.48.228/3010.89.48.229 – 10.89.48.23010.89.48.231
5910.89.48.232/3010.89.48.233 – 10.89.48.23410.89.48.235
6010.89.48.236/3010.89.48.237 – 10.89.48.23810.89.48.239
6110.89.48.240/3010.89.48.241 – 10.89.48.24210.89.48.243
6210.89.48.244/3010.89.48.245 – 10.89.48.24610.89.48.247
6310.89.48.248/3010.89.48.249 – 10.89.48.25010.89.48.251
6410.89.48.252/3010.89.48.253 – 10.89.48.25410.89.48.255
6510.89.49.0/3010.89.49.1 – 10.89.49.210.89.49.3
6610.89.49.4/3010.89.49.5 – 10.89.49.610.89.49.7
6710.89.49.8/3010.89.49.9 – 10.89.49.1010.89.49.11
6810.89.49.12/3010.89.49.13 – 10.89.49.1410.89.49.15
6910.89.49.16/3010.89.49.17 – 10.89.49.1810.89.49.19
7010.89.49.20/3010.89.49.21 – 10.89.49.2210.89.49.23
7110.89.49.24/3010.89.49.25 – 10.89.49.2610.89.49.27
7210.89.49.28/3010.89.49.29 – 10.89.49.3010.89.49.31
7310.89.49.32/3010.89.49.33 – 10.89.49.3410.89.49.35
7410.89.49.36/3010.89.49.37 – 10.89.49.3810.89.49.39
7510.89.49.40/3010.89.49.41 – 10.89.49.4210.89.49.43
7610.89.49.44/3010.89.49.45 – 10.89.49.4610.89.49.47
7710.89.49.48/3010.89.49.49 – 10.89.49.5010.89.49.51
7810.89.49.52/3010.89.49.53 – 10.89.49.5410.89.49.55
7910.89.49.56/3010.89.49.57 – 10.89.49.5810.89.49.59
8010.89.49.60/3010.89.49.61 – 10.89.49.6210.89.49.63
8110.89.49.64/3010.89.49.65 – 10.89.49.6610.89.49.67
8210.89.49.68/3010.89.49.69 – 10.89.49.7010.89.49.71
8310.89.49.72/3010.89.49.73 – 10.89.49.7410.89.49.75
8410.89.49.76/3010.89.49.77 – 10.89.49.7810.89.49.79
8510.89.49.80/3010.89.49.81 – 10.89.49.8210.89.49.83
8610.89.49.84/3010.89.49.85 – 10.89.49.8610.89.49.87
8710.89.49.88/3010.89.49.89 – 10.89.49.9010.89.49.91
8810.89.49.92/3010.89.49.93 – 10.89.49.9410.89.49.95
8910.89.49.96/3010.89.49.97 – 10.89.49.9810.89.49.99
9010.89.49.100/3010.89.49.101 – 10.89.49.10210.89.49.103
9110.89.49.104/3010.89.49.105 – 10.89.49.10610.89.49.107
9210.89.49.108/3010.89.49.109 – 10.89.49.11010.89.49.111
9310.89.49.112/3010.89.49.113 – 10.89.49.11410.89.49.115
9410.89.49.116/3010.89.49.117 – 10.89.49.11810.89.49.119
9510.89.49.120/3010.89.49.121 – 10.89.49.12210.89.49.123
9610.89.49.124/3010.89.49.125 – 10.89.49.12610.89.49.127
9710.89.49.128/3010.89.49.129 – 10.89.49.13010.89.49.131
9810.89.49.132/3010.89.49.133 – 10.89.49.13410.89.49.135
9910.89.49.136/3010.89.49.137 – 10.89.49.13810.89.49.139
10010.89.49.140/3010.89.49.141 – 10.89.49.14210.89.49.143
10110.89.49.144/3010.89.49.145 – 10.89.49.14610.89.49.147
10210.89.49.148/3010.89.49.149 – 10.89.49.15010.89.49.151
10310.89.49.152/3010.89.49.153 – 10.89.49.15410.89.49.155
10410.89.49.156/3010.89.49.157 – 10.89.49.15810.89.49.159
10510.89.49.160/3010.89.49.161 – 10.89.49.16210.89.49.163
10610.89.49.164/3010.89.49.165 – 10.89.49.16610.89.49.167
10710.89.49.168/3010.89.49.169 – 10.89.49.17010.89.49.171
10810.89.49.172/3010.89.49.173 – 10.89.49.17410.89.49.175
10910.89.49.176/3010.89.49.177 – 10.89.49.17810.89.49.179
11010.89.49.180/3010.89.49.181 – 10.89.49.18210.89.49.183
11110.89.49.184/3010.89.49.185 – 10.89.49.18610.89.49.187
11210.89.49.188/3010.89.49.189 – 10.89.49.19010.89.49.191
11310.89.49.192/3010.89.49.193 – 10.89.49.19410.89.49.195
11410.89.49.196/3010.89.49.197 – 10.89.49.19810.89.49.199
11510.89.49.200/3010.89.49.201 – 10.89.49.20210.89.49.203
11610.89.49.204/3010.89.49.205 – 10.89.49.20610.89.49.207
11710.89.49.208/3010.89.49.209 – 10.89.49.21010.89.49.211
11810.89.49.212/3010.89.49.213 – 10.89.49.21410.89.49.215
11910.89.49.216/3010.89.49.217 – 10.89.49.21810.89.49.219
12010.89.49.220/3010.89.49.221 – 10.89.49.22210.89.49.223
12110.89.49.224/3010.89.49.225 – 10.89.49.22610.89.49.227
12210.89.49.228/3010.89.49.229 – 10.89.49.23010.89.49.231
12310.89.49.232/3010.89.49.233 – 10.89.49.23410.89.49.235
12410.89.49.236/3010.89.49.237 – 10.89.49.23810.89.49.239
12510.89.49.240/3010.89.49.241 – 10.89.49.24210.89.49.243
12610.89.49.244/3010.89.49.245 – 10.89.49.24610.89.49.247
12710.89.49.248/3010.89.49.249 – 10.89.49.25010.89.49.251
12810.89.49.252/3010.89.49.253 – 10.89.49.25410.89.49.255
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 →