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)10.7.46.0/23
network10.7.46.0/23
broadcast10.7.47.255
first host10.7.46.1
last host10.7.47.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.7.46.0/23
address00001010.00000111.00101110.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.00000111.00101110.00000000
broadcast00001010.00000111.00101111.11111111
green = network part, grey = host part
hex0x0a072e00
decimal168242688
reverse dns0.46.7.10.in-addr.arpa
ipv4-mapped::ffff:a07:2e00

/23 split into /30 · 128 subnets

close ×
#networkhost rangebroadcast
110.7.46.0/3010.7.46.1 – 10.7.46.210.7.46.3
210.7.46.4/3010.7.46.5 – 10.7.46.610.7.46.7
310.7.46.8/3010.7.46.9 – 10.7.46.1010.7.46.11
410.7.46.12/3010.7.46.13 – 10.7.46.1410.7.46.15
510.7.46.16/3010.7.46.17 – 10.7.46.1810.7.46.19
610.7.46.20/3010.7.46.21 – 10.7.46.2210.7.46.23
710.7.46.24/3010.7.46.25 – 10.7.46.2610.7.46.27
810.7.46.28/3010.7.46.29 – 10.7.46.3010.7.46.31
910.7.46.32/3010.7.46.33 – 10.7.46.3410.7.46.35
1010.7.46.36/3010.7.46.37 – 10.7.46.3810.7.46.39
1110.7.46.40/3010.7.46.41 – 10.7.46.4210.7.46.43
1210.7.46.44/3010.7.46.45 – 10.7.46.4610.7.46.47
1310.7.46.48/3010.7.46.49 – 10.7.46.5010.7.46.51
1410.7.46.52/3010.7.46.53 – 10.7.46.5410.7.46.55
1510.7.46.56/3010.7.46.57 – 10.7.46.5810.7.46.59
1610.7.46.60/3010.7.46.61 – 10.7.46.6210.7.46.63
1710.7.46.64/3010.7.46.65 – 10.7.46.6610.7.46.67
1810.7.46.68/3010.7.46.69 – 10.7.46.7010.7.46.71
1910.7.46.72/3010.7.46.73 – 10.7.46.7410.7.46.75
2010.7.46.76/3010.7.46.77 – 10.7.46.7810.7.46.79
2110.7.46.80/3010.7.46.81 – 10.7.46.8210.7.46.83
2210.7.46.84/3010.7.46.85 – 10.7.46.8610.7.46.87
2310.7.46.88/3010.7.46.89 – 10.7.46.9010.7.46.91
2410.7.46.92/3010.7.46.93 – 10.7.46.9410.7.46.95
2510.7.46.96/3010.7.46.97 – 10.7.46.9810.7.46.99
2610.7.46.100/3010.7.46.101 – 10.7.46.10210.7.46.103
2710.7.46.104/3010.7.46.105 – 10.7.46.10610.7.46.107
2810.7.46.108/3010.7.46.109 – 10.7.46.11010.7.46.111
2910.7.46.112/3010.7.46.113 – 10.7.46.11410.7.46.115
3010.7.46.116/3010.7.46.117 – 10.7.46.11810.7.46.119
3110.7.46.120/3010.7.46.121 – 10.7.46.12210.7.46.123
3210.7.46.124/3010.7.46.125 – 10.7.46.12610.7.46.127
3310.7.46.128/3010.7.46.129 – 10.7.46.13010.7.46.131
3410.7.46.132/3010.7.46.133 – 10.7.46.13410.7.46.135
3510.7.46.136/3010.7.46.137 – 10.7.46.13810.7.46.139
3610.7.46.140/3010.7.46.141 – 10.7.46.14210.7.46.143
3710.7.46.144/3010.7.46.145 – 10.7.46.14610.7.46.147
3810.7.46.148/3010.7.46.149 – 10.7.46.15010.7.46.151
3910.7.46.152/3010.7.46.153 – 10.7.46.15410.7.46.155
4010.7.46.156/3010.7.46.157 – 10.7.46.15810.7.46.159
4110.7.46.160/3010.7.46.161 – 10.7.46.16210.7.46.163
4210.7.46.164/3010.7.46.165 – 10.7.46.16610.7.46.167
4310.7.46.168/3010.7.46.169 – 10.7.46.17010.7.46.171
4410.7.46.172/3010.7.46.173 – 10.7.46.17410.7.46.175
4510.7.46.176/3010.7.46.177 – 10.7.46.17810.7.46.179
4610.7.46.180/3010.7.46.181 – 10.7.46.18210.7.46.183
4710.7.46.184/3010.7.46.185 – 10.7.46.18610.7.46.187
4810.7.46.188/3010.7.46.189 – 10.7.46.19010.7.46.191
4910.7.46.192/3010.7.46.193 – 10.7.46.19410.7.46.195
5010.7.46.196/3010.7.46.197 – 10.7.46.19810.7.46.199
5110.7.46.200/3010.7.46.201 – 10.7.46.20210.7.46.203
5210.7.46.204/3010.7.46.205 – 10.7.46.20610.7.46.207
5310.7.46.208/3010.7.46.209 – 10.7.46.21010.7.46.211
5410.7.46.212/3010.7.46.213 – 10.7.46.21410.7.46.215
5510.7.46.216/3010.7.46.217 – 10.7.46.21810.7.46.219
5610.7.46.220/3010.7.46.221 – 10.7.46.22210.7.46.223
5710.7.46.224/3010.7.46.225 – 10.7.46.22610.7.46.227
5810.7.46.228/3010.7.46.229 – 10.7.46.23010.7.46.231
5910.7.46.232/3010.7.46.233 – 10.7.46.23410.7.46.235
6010.7.46.236/3010.7.46.237 – 10.7.46.23810.7.46.239
6110.7.46.240/3010.7.46.241 – 10.7.46.24210.7.46.243
6210.7.46.244/3010.7.46.245 – 10.7.46.24610.7.46.247
6310.7.46.248/3010.7.46.249 – 10.7.46.25010.7.46.251
6410.7.46.252/3010.7.46.253 – 10.7.46.25410.7.46.255
6510.7.47.0/3010.7.47.1 – 10.7.47.210.7.47.3
6610.7.47.4/3010.7.47.5 – 10.7.47.610.7.47.7
6710.7.47.8/3010.7.47.9 – 10.7.47.1010.7.47.11
6810.7.47.12/3010.7.47.13 – 10.7.47.1410.7.47.15
6910.7.47.16/3010.7.47.17 – 10.7.47.1810.7.47.19
7010.7.47.20/3010.7.47.21 – 10.7.47.2210.7.47.23
7110.7.47.24/3010.7.47.25 – 10.7.47.2610.7.47.27
7210.7.47.28/3010.7.47.29 – 10.7.47.3010.7.47.31
7310.7.47.32/3010.7.47.33 – 10.7.47.3410.7.47.35
7410.7.47.36/3010.7.47.37 – 10.7.47.3810.7.47.39
7510.7.47.40/3010.7.47.41 – 10.7.47.4210.7.47.43
7610.7.47.44/3010.7.47.45 – 10.7.47.4610.7.47.47
7710.7.47.48/3010.7.47.49 – 10.7.47.5010.7.47.51
7810.7.47.52/3010.7.47.53 – 10.7.47.5410.7.47.55
7910.7.47.56/3010.7.47.57 – 10.7.47.5810.7.47.59
8010.7.47.60/3010.7.47.61 – 10.7.47.6210.7.47.63
8110.7.47.64/3010.7.47.65 – 10.7.47.6610.7.47.67
8210.7.47.68/3010.7.47.69 – 10.7.47.7010.7.47.71
8310.7.47.72/3010.7.47.73 – 10.7.47.7410.7.47.75
8410.7.47.76/3010.7.47.77 – 10.7.47.7810.7.47.79
8510.7.47.80/3010.7.47.81 – 10.7.47.8210.7.47.83
8610.7.47.84/3010.7.47.85 – 10.7.47.8610.7.47.87
8710.7.47.88/3010.7.47.89 – 10.7.47.9010.7.47.91
8810.7.47.92/3010.7.47.93 – 10.7.47.9410.7.47.95
8910.7.47.96/3010.7.47.97 – 10.7.47.9810.7.47.99
9010.7.47.100/3010.7.47.101 – 10.7.47.10210.7.47.103
9110.7.47.104/3010.7.47.105 – 10.7.47.10610.7.47.107
9210.7.47.108/3010.7.47.109 – 10.7.47.11010.7.47.111
9310.7.47.112/3010.7.47.113 – 10.7.47.11410.7.47.115
9410.7.47.116/3010.7.47.117 – 10.7.47.11810.7.47.119
9510.7.47.120/3010.7.47.121 – 10.7.47.12210.7.47.123
9610.7.47.124/3010.7.47.125 – 10.7.47.12610.7.47.127
9710.7.47.128/3010.7.47.129 – 10.7.47.13010.7.47.131
9810.7.47.132/3010.7.47.133 – 10.7.47.13410.7.47.135
9910.7.47.136/3010.7.47.137 – 10.7.47.13810.7.47.139
10010.7.47.140/3010.7.47.141 – 10.7.47.14210.7.47.143
10110.7.47.144/3010.7.47.145 – 10.7.47.14610.7.47.147
10210.7.47.148/3010.7.47.149 – 10.7.47.15010.7.47.151
10310.7.47.152/3010.7.47.153 – 10.7.47.15410.7.47.155
10410.7.47.156/3010.7.47.157 – 10.7.47.15810.7.47.159
10510.7.47.160/3010.7.47.161 – 10.7.47.16210.7.47.163
10610.7.47.164/3010.7.47.165 – 10.7.47.16610.7.47.167
10710.7.47.168/3010.7.47.169 – 10.7.47.17010.7.47.171
10810.7.47.172/3010.7.47.173 – 10.7.47.17410.7.47.175
10910.7.47.176/3010.7.47.177 – 10.7.47.17810.7.47.179
11010.7.47.180/3010.7.47.181 – 10.7.47.18210.7.47.183
11110.7.47.184/3010.7.47.185 – 10.7.47.18610.7.47.187
11210.7.47.188/3010.7.47.189 – 10.7.47.19010.7.47.191
11310.7.47.192/3010.7.47.193 – 10.7.47.19410.7.47.195
11410.7.47.196/3010.7.47.197 – 10.7.47.19810.7.47.199
11510.7.47.200/3010.7.47.201 – 10.7.47.20210.7.47.203
11610.7.47.204/3010.7.47.205 – 10.7.47.20610.7.47.207
11710.7.47.208/3010.7.47.209 – 10.7.47.21010.7.47.211
11810.7.47.212/3010.7.47.213 – 10.7.47.21410.7.47.215
11910.7.47.216/3010.7.47.217 – 10.7.47.21810.7.47.219
12010.7.47.220/3010.7.47.221 – 10.7.47.22210.7.47.223
12110.7.47.224/3010.7.47.225 – 10.7.47.22610.7.47.227
12210.7.47.228/3010.7.47.229 – 10.7.47.23010.7.47.231
12310.7.47.232/3010.7.47.233 – 10.7.47.23410.7.47.235
12410.7.47.236/3010.7.47.237 – 10.7.47.23810.7.47.239
12510.7.47.240/3010.7.47.241 – 10.7.47.24210.7.47.243
12610.7.47.244/3010.7.47.245 – 10.7.47.24610.7.47.247
12710.7.47.248/3010.7.47.249 – 10.7.47.25010.7.47.251
12810.7.47.252/3010.7.47.253 – 10.7.47.25410.7.47.255
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 →