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)10.97.60.0/23
network10.97.60.0/23
broadcast10.97.61.255
first host10.97.60.1
last host10.97.61.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.97.60.0/23
address00001010.01100001.00111100.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.01100001.00111100.00000000
broadcast00001010.01100001.00111101.11111111
green = network part, grey = host part
hex0x0a613c00
decimal174144512
reverse dns0.60.97.10.in-addr.arpa
ipv4-mapped::ffff:a61:3c00

/23 split into /30 · 128 subnets

close ×
#networkhost rangebroadcast
110.97.60.0/3010.97.60.1 – 10.97.60.210.97.60.3
210.97.60.4/3010.97.60.5 – 10.97.60.610.97.60.7
310.97.60.8/3010.97.60.9 – 10.97.60.1010.97.60.11
410.97.60.12/3010.97.60.13 – 10.97.60.1410.97.60.15
510.97.60.16/3010.97.60.17 – 10.97.60.1810.97.60.19
610.97.60.20/3010.97.60.21 – 10.97.60.2210.97.60.23
710.97.60.24/3010.97.60.25 – 10.97.60.2610.97.60.27
810.97.60.28/3010.97.60.29 – 10.97.60.3010.97.60.31
910.97.60.32/3010.97.60.33 – 10.97.60.3410.97.60.35
1010.97.60.36/3010.97.60.37 – 10.97.60.3810.97.60.39
1110.97.60.40/3010.97.60.41 – 10.97.60.4210.97.60.43
1210.97.60.44/3010.97.60.45 – 10.97.60.4610.97.60.47
1310.97.60.48/3010.97.60.49 – 10.97.60.5010.97.60.51
1410.97.60.52/3010.97.60.53 – 10.97.60.5410.97.60.55
1510.97.60.56/3010.97.60.57 – 10.97.60.5810.97.60.59
1610.97.60.60/3010.97.60.61 – 10.97.60.6210.97.60.63
1710.97.60.64/3010.97.60.65 – 10.97.60.6610.97.60.67
1810.97.60.68/3010.97.60.69 – 10.97.60.7010.97.60.71
1910.97.60.72/3010.97.60.73 – 10.97.60.7410.97.60.75
2010.97.60.76/3010.97.60.77 – 10.97.60.7810.97.60.79
2110.97.60.80/3010.97.60.81 – 10.97.60.8210.97.60.83
2210.97.60.84/3010.97.60.85 – 10.97.60.8610.97.60.87
2310.97.60.88/3010.97.60.89 – 10.97.60.9010.97.60.91
2410.97.60.92/3010.97.60.93 – 10.97.60.9410.97.60.95
2510.97.60.96/3010.97.60.97 – 10.97.60.9810.97.60.99
2610.97.60.100/3010.97.60.101 – 10.97.60.10210.97.60.103
2710.97.60.104/3010.97.60.105 – 10.97.60.10610.97.60.107
2810.97.60.108/3010.97.60.109 – 10.97.60.11010.97.60.111
2910.97.60.112/3010.97.60.113 – 10.97.60.11410.97.60.115
3010.97.60.116/3010.97.60.117 – 10.97.60.11810.97.60.119
3110.97.60.120/3010.97.60.121 – 10.97.60.12210.97.60.123
3210.97.60.124/3010.97.60.125 – 10.97.60.12610.97.60.127
3310.97.60.128/3010.97.60.129 – 10.97.60.13010.97.60.131
3410.97.60.132/3010.97.60.133 – 10.97.60.13410.97.60.135
3510.97.60.136/3010.97.60.137 – 10.97.60.13810.97.60.139
3610.97.60.140/3010.97.60.141 – 10.97.60.14210.97.60.143
3710.97.60.144/3010.97.60.145 – 10.97.60.14610.97.60.147
3810.97.60.148/3010.97.60.149 – 10.97.60.15010.97.60.151
3910.97.60.152/3010.97.60.153 – 10.97.60.15410.97.60.155
4010.97.60.156/3010.97.60.157 – 10.97.60.15810.97.60.159
4110.97.60.160/3010.97.60.161 – 10.97.60.16210.97.60.163
4210.97.60.164/3010.97.60.165 – 10.97.60.16610.97.60.167
4310.97.60.168/3010.97.60.169 – 10.97.60.17010.97.60.171
4410.97.60.172/3010.97.60.173 – 10.97.60.17410.97.60.175
4510.97.60.176/3010.97.60.177 – 10.97.60.17810.97.60.179
4610.97.60.180/3010.97.60.181 – 10.97.60.18210.97.60.183
4710.97.60.184/3010.97.60.185 – 10.97.60.18610.97.60.187
4810.97.60.188/3010.97.60.189 – 10.97.60.19010.97.60.191
4910.97.60.192/3010.97.60.193 – 10.97.60.19410.97.60.195
5010.97.60.196/3010.97.60.197 – 10.97.60.19810.97.60.199
5110.97.60.200/3010.97.60.201 – 10.97.60.20210.97.60.203
5210.97.60.204/3010.97.60.205 – 10.97.60.20610.97.60.207
5310.97.60.208/3010.97.60.209 – 10.97.60.21010.97.60.211
5410.97.60.212/3010.97.60.213 – 10.97.60.21410.97.60.215
5510.97.60.216/3010.97.60.217 – 10.97.60.21810.97.60.219
5610.97.60.220/3010.97.60.221 – 10.97.60.22210.97.60.223
5710.97.60.224/3010.97.60.225 – 10.97.60.22610.97.60.227
5810.97.60.228/3010.97.60.229 – 10.97.60.23010.97.60.231
5910.97.60.232/3010.97.60.233 – 10.97.60.23410.97.60.235
6010.97.60.236/3010.97.60.237 – 10.97.60.23810.97.60.239
6110.97.60.240/3010.97.60.241 – 10.97.60.24210.97.60.243
6210.97.60.244/3010.97.60.245 – 10.97.60.24610.97.60.247
6310.97.60.248/3010.97.60.249 – 10.97.60.25010.97.60.251
6410.97.60.252/3010.97.60.253 – 10.97.60.25410.97.60.255
6510.97.61.0/3010.97.61.1 – 10.97.61.210.97.61.3
6610.97.61.4/3010.97.61.5 – 10.97.61.610.97.61.7
6710.97.61.8/3010.97.61.9 – 10.97.61.1010.97.61.11
6810.97.61.12/3010.97.61.13 – 10.97.61.1410.97.61.15
6910.97.61.16/3010.97.61.17 – 10.97.61.1810.97.61.19
7010.97.61.20/3010.97.61.21 – 10.97.61.2210.97.61.23
7110.97.61.24/3010.97.61.25 – 10.97.61.2610.97.61.27
7210.97.61.28/3010.97.61.29 – 10.97.61.3010.97.61.31
7310.97.61.32/3010.97.61.33 – 10.97.61.3410.97.61.35
7410.97.61.36/3010.97.61.37 – 10.97.61.3810.97.61.39
7510.97.61.40/3010.97.61.41 – 10.97.61.4210.97.61.43
7610.97.61.44/3010.97.61.45 – 10.97.61.4610.97.61.47
7710.97.61.48/3010.97.61.49 – 10.97.61.5010.97.61.51
7810.97.61.52/3010.97.61.53 – 10.97.61.5410.97.61.55
7910.97.61.56/3010.97.61.57 – 10.97.61.5810.97.61.59
8010.97.61.60/3010.97.61.61 – 10.97.61.6210.97.61.63
8110.97.61.64/3010.97.61.65 – 10.97.61.6610.97.61.67
8210.97.61.68/3010.97.61.69 – 10.97.61.7010.97.61.71
8310.97.61.72/3010.97.61.73 – 10.97.61.7410.97.61.75
8410.97.61.76/3010.97.61.77 – 10.97.61.7810.97.61.79
8510.97.61.80/3010.97.61.81 – 10.97.61.8210.97.61.83
8610.97.61.84/3010.97.61.85 – 10.97.61.8610.97.61.87
8710.97.61.88/3010.97.61.89 – 10.97.61.9010.97.61.91
8810.97.61.92/3010.97.61.93 – 10.97.61.9410.97.61.95
8910.97.61.96/3010.97.61.97 – 10.97.61.9810.97.61.99
9010.97.61.100/3010.97.61.101 – 10.97.61.10210.97.61.103
9110.97.61.104/3010.97.61.105 – 10.97.61.10610.97.61.107
9210.97.61.108/3010.97.61.109 – 10.97.61.11010.97.61.111
9310.97.61.112/3010.97.61.113 – 10.97.61.11410.97.61.115
9410.97.61.116/3010.97.61.117 – 10.97.61.11810.97.61.119
9510.97.61.120/3010.97.61.121 – 10.97.61.12210.97.61.123
9610.97.61.124/3010.97.61.125 – 10.97.61.12610.97.61.127
9710.97.61.128/3010.97.61.129 – 10.97.61.13010.97.61.131
9810.97.61.132/3010.97.61.133 – 10.97.61.13410.97.61.135
9910.97.61.136/3010.97.61.137 – 10.97.61.13810.97.61.139
10010.97.61.140/3010.97.61.141 – 10.97.61.14210.97.61.143
10110.97.61.144/3010.97.61.145 – 10.97.61.14610.97.61.147
10210.97.61.148/3010.97.61.149 – 10.97.61.15010.97.61.151
10310.97.61.152/3010.97.61.153 – 10.97.61.15410.97.61.155
10410.97.61.156/3010.97.61.157 – 10.97.61.15810.97.61.159
10510.97.61.160/3010.97.61.161 – 10.97.61.16210.97.61.163
10610.97.61.164/3010.97.61.165 – 10.97.61.16610.97.61.167
10710.97.61.168/3010.97.61.169 – 10.97.61.17010.97.61.171
10810.97.61.172/3010.97.61.173 – 10.97.61.17410.97.61.175
10910.97.61.176/3010.97.61.177 – 10.97.61.17810.97.61.179
11010.97.61.180/3010.97.61.181 – 10.97.61.18210.97.61.183
11110.97.61.184/3010.97.61.185 – 10.97.61.18610.97.61.187
11210.97.61.188/3010.97.61.189 – 10.97.61.19010.97.61.191
11310.97.61.192/3010.97.61.193 – 10.97.61.19410.97.61.195
11410.97.61.196/3010.97.61.197 – 10.97.61.19810.97.61.199
11510.97.61.200/3010.97.61.201 – 10.97.61.20210.97.61.203
11610.97.61.204/3010.97.61.205 – 10.97.61.20610.97.61.207
11710.97.61.208/3010.97.61.209 – 10.97.61.21010.97.61.211
11810.97.61.212/3010.97.61.213 – 10.97.61.21410.97.61.215
11910.97.61.216/3010.97.61.217 – 10.97.61.21810.97.61.219
12010.97.61.220/3010.97.61.221 – 10.97.61.22210.97.61.223
12110.97.61.224/3010.97.61.225 – 10.97.61.22610.97.61.227
12210.97.61.228/3010.97.61.229 – 10.97.61.23010.97.61.231
12310.97.61.232/3010.97.61.233 – 10.97.61.23410.97.61.235
12410.97.61.236/3010.97.61.237 – 10.97.61.23810.97.61.239
12510.97.61.240/3010.97.61.241 – 10.97.61.24210.97.61.243
12610.97.61.244/3010.97.61.245 – 10.97.61.24610.97.61.247
12710.97.61.248/3010.97.61.249 – 10.97.61.25010.97.61.251
12810.97.61.252/3010.97.61.253 – 10.97.61.25410.97.61.255
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 →