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)10.45.69.0/24
network10.45.69.0/24
broadcast10.45.69.255
first host10.45.69.1
last host10.45.69.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.45.69.0/24
address00001010.00101101.01000101.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.00101101.01000101.00000000
broadcast00001010.00101101.01000101.11111111
green = network part, grey = host part
hex0x0a2d4500
decimal170738944
reverse dns0.69.45.10.in-addr.arpa
ipv4-mapped::ffff:a2d:4500

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.45.69.0/3110.45.69.0 – 10.45.69.110.45.69.1
210.45.69.2/3110.45.69.2 – 10.45.69.310.45.69.3
310.45.69.4/3110.45.69.4 – 10.45.69.510.45.69.5
410.45.69.6/3110.45.69.6 – 10.45.69.710.45.69.7
510.45.69.8/3110.45.69.8 – 10.45.69.910.45.69.9
610.45.69.10/3110.45.69.10 – 10.45.69.1110.45.69.11
710.45.69.12/3110.45.69.12 – 10.45.69.1310.45.69.13
810.45.69.14/3110.45.69.14 – 10.45.69.1510.45.69.15
910.45.69.16/3110.45.69.16 – 10.45.69.1710.45.69.17
1010.45.69.18/3110.45.69.18 – 10.45.69.1910.45.69.19
1110.45.69.20/3110.45.69.20 – 10.45.69.2110.45.69.21
1210.45.69.22/3110.45.69.22 – 10.45.69.2310.45.69.23
1310.45.69.24/3110.45.69.24 – 10.45.69.2510.45.69.25
1410.45.69.26/3110.45.69.26 – 10.45.69.2710.45.69.27
1510.45.69.28/3110.45.69.28 – 10.45.69.2910.45.69.29
1610.45.69.30/3110.45.69.30 – 10.45.69.3110.45.69.31
1710.45.69.32/3110.45.69.32 – 10.45.69.3310.45.69.33
1810.45.69.34/3110.45.69.34 – 10.45.69.3510.45.69.35
1910.45.69.36/3110.45.69.36 – 10.45.69.3710.45.69.37
2010.45.69.38/3110.45.69.38 – 10.45.69.3910.45.69.39
2110.45.69.40/3110.45.69.40 – 10.45.69.4110.45.69.41
2210.45.69.42/3110.45.69.42 – 10.45.69.4310.45.69.43
2310.45.69.44/3110.45.69.44 – 10.45.69.4510.45.69.45
2410.45.69.46/3110.45.69.46 – 10.45.69.4710.45.69.47
2510.45.69.48/3110.45.69.48 – 10.45.69.4910.45.69.49
2610.45.69.50/3110.45.69.50 – 10.45.69.5110.45.69.51
2710.45.69.52/3110.45.69.52 – 10.45.69.5310.45.69.53
2810.45.69.54/3110.45.69.54 – 10.45.69.5510.45.69.55
2910.45.69.56/3110.45.69.56 – 10.45.69.5710.45.69.57
3010.45.69.58/3110.45.69.58 – 10.45.69.5910.45.69.59
3110.45.69.60/3110.45.69.60 – 10.45.69.6110.45.69.61
3210.45.69.62/3110.45.69.62 – 10.45.69.6310.45.69.63
3310.45.69.64/3110.45.69.64 – 10.45.69.6510.45.69.65
3410.45.69.66/3110.45.69.66 – 10.45.69.6710.45.69.67
3510.45.69.68/3110.45.69.68 – 10.45.69.6910.45.69.69
3610.45.69.70/3110.45.69.70 – 10.45.69.7110.45.69.71
3710.45.69.72/3110.45.69.72 – 10.45.69.7310.45.69.73
3810.45.69.74/3110.45.69.74 – 10.45.69.7510.45.69.75
3910.45.69.76/3110.45.69.76 – 10.45.69.7710.45.69.77
4010.45.69.78/3110.45.69.78 – 10.45.69.7910.45.69.79
4110.45.69.80/3110.45.69.80 – 10.45.69.8110.45.69.81
4210.45.69.82/3110.45.69.82 – 10.45.69.8310.45.69.83
4310.45.69.84/3110.45.69.84 – 10.45.69.8510.45.69.85
4410.45.69.86/3110.45.69.86 – 10.45.69.8710.45.69.87
4510.45.69.88/3110.45.69.88 – 10.45.69.8910.45.69.89
4610.45.69.90/3110.45.69.90 – 10.45.69.9110.45.69.91
4710.45.69.92/3110.45.69.92 – 10.45.69.9310.45.69.93
4810.45.69.94/3110.45.69.94 – 10.45.69.9510.45.69.95
4910.45.69.96/3110.45.69.96 – 10.45.69.9710.45.69.97
5010.45.69.98/3110.45.69.98 – 10.45.69.9910.45.69.99
5110.45.69.100/3110.45.69.100 – 10.45.69.10110.45.69.101
5210.45.69.102/3110.45.69.102 – 10.45.69.10310.45.69.103
5310.45.69.104/3110.45.69.104 – 10.45.69.10510.45.69.105
5410.45.69.106/3110.45.69.106 – 10.45.69.10710.45.69.107
5510.45.69.108/3110.45.69.108 – 10.45.69.10910.45.69.109
5610.45.69.110/3110.45.69.110 – 10.45.69.11110.45.69.111
5710.45.69.112/3110.45.69.112 – 10.45.69.11310.45.69.113
5810.45.69.114/3110.45.69.114 – 10.45.69.11510.45.69.115
5910.45.69.116/3110.45.69.116 – 10.45.69.11710.45.69.117
6010.45.69.118/3110.45.69.118 – 10.45.69.11910.45.69.119
6110.45.69.120/3110.45.69.120 – 10.45.69.12110.45.69.121
6210.45.69.122/3110.45.69.122 – 10.45.69.12310.45.69.123
6310.45.69.124/3110.45.69.124 – 10.45.69.12510.45.69.125
6410.45.69.126/3110.45.69.126 – 10.45.69.12710.45.69.127
6510.45.69.128/3110.45.69.128 – 10.45.69.12910.45.69.129
6610.45.69.130/3110.45.69.130 – 10.45.69.13110.45.69.131
6710.45.69.132/3110.45.69.132 – 10.45.69.13310.45.69.133
6810.45.69.134/3110.45.69.134 – 10.45.69.13510.45.69.135
6910.45.69.136/3110.45.69.136 – 10.45.69.13710.45.69.137
7010.45.69.138/3110.45.69.138 – 10.45.69.13910.45.69.139
7110.45.69.140/3110.45.69.140 – 10.45.69.14110.45.69.141
7210.45.69.142/3110.45.69.142 – 10.45.69.14310.45.69.143
7310.45.69.144/3110.45.69.144 – 10.45.69.14510.45.69.145
7410.45.69.146/3110.45.69.146 – 10.45.69.14710.45.69.147
7510.45.69.148/3110.45.69.148 – 10.45.69.14910.45.69.149
7610.45.69.150/3110.45.69.150 – 10.45.69.15110.45.69.151
7710.45.69.152/3110.45.69.152 – 10.45.69.15310.45.69.153
7810.45.69.154/3110.45.69.154 – 10.45.69.15510.45.69.155
7910.45.69.156/3110.45.69.156 – 10.45.69.15710.45.69.157
8010.45.69.158/3110.45.69.158 – 10.45.69.15910.45.69.159
8110.45.69.160/3110.45.69.160 – 10.45.69.16110.45.69.161
8210.45.69.162/3110.45.69.162 – 10.45.69.16310.45.69.163
8310.45.69.164/3110.45.69.164 – 10.45.69.16510.45.69.165
8410.45.69.166/3110.45.69.166 – 10.45.69.16710.45.69.167
8510.45.69.168/3110.45.69.168 – 10.45.69.16910.45.69.169
8610.45.69.170/3110.45.69.170 – 10.45.69.17110.45.69.171
8710.45.69.172/3110.45.69.172 – 10.45.69.17310.45.69.173
8810.45.69.174/3110.45.69.174 – 10.45.69.17510.45.69.175
8910.45.69.176/3110.45.69.176 – 10.45.69.17710.45.69.177
9010.45.69.178/3110.45.69.178 – 10.45.69.17910.45.69.179
9110.45.69.180/3110.45.69.180 – 10.45.69.18110.45.69.181
9210.45.69.182/3110.45.69.182 – 10.45.69.18310.45.69.183
9310.45.69.184/3110.45.69.184 – 10.45.69.18510.45.69.185
9410.45.69.186/3110.45.69.186 – 10.45.69.18710.45.69.187
9510.45.69.188/3110.45.69.188 – 10.45.69.18910.45.69.189
9610.45.69.190/3110.45.69.190 – 10.45.69.19110.45.69.191
9710.45.69.192/3110.45.69.192 – 10.45.69.19310.45.69.193
9810.45.69.194/3110.45.69.194 – 10.45.69.19510.45.69.195
9910.45.69.196/3110.45.69.196 – 10.45.69.19710.45.69.197
10010.45.69.198/3110.45.69.198 – 10.45.69.19910.45.69.199
10110.45.69.200/3110.45.69.200 – 10.45.69.20110.45.69.201
10210.45.69.202/3110.45.69.202 – 10.45.69.20310.45.69.203
10310.45.69.204/3110.45.69.204 – 10.45.69.20510.45.69.205
10410.45.69.206/3110.45.69.206 – 10.45.69.20710.45.69.207
10510.45.69.208/3110.45.69.208 – 10.45.69.20910.45.69.209
10610.45.69.210/3110.45.69.210 – 10.45.69.21110.45.69.211
10710.45.69.212/3110.45.69.212 – 10.45.69.21310.45.69.213
10810.45.69.214/3110.45.69.214 – 10.45.69.21510.45.69.215
10910.45.69.216/3110.45.69.216 – 10.45.69.21710.45.69.217
11010.45.69.218/3110.45.69.218 – 10.45.69.21910.45.69.219
11110.45.69.220/3110.45.69.220 – 10.45.69.22110.45.69.221
11210.45.69.222/3110.45.69.222 – 10.45.69.22310.45.69.223
11310.45.69.224/3110.45.69.224 – 10.45.69.22510.45.69.225
11410.45.69.226/3110.45.69.226 – 10.45.69.22710.45.69.227
11510.45.69.228/3110.45.69.228 – 10.45.69.22910.45.69.229
11610.45.69.230/3110.45.69.230 – 10.45.69.23110.45.69.231
11710.45.69.232/3110.45.69.232 – 10.45.69.23310.45.69.233
11810.45.69.234/3110.45.69.234 – 10.45.69.23510.45.69.235
11910.45.69.236/3110.45.69.236 – 10.45.69.23710.45.69.237
12010.45.69.238/3110.45.69.238 – 10.45.69.23910.45.69.239
12110.45.69.240/3110.45.69.240 – 10.45.69.24110.45.69.241
12210.45.69.242/3110.45.69.242 – 10.45.69.24310.45.69.243
12310.45.69.244/3110.45.69.244 – 10.45.69.24510.45.69.245
12410.45.69.246/3110.45.69.246 – 10.45.69.24710.45.69.247
12510.45.69.248/3110.45.69.248 – 10.45.69.24910.45.69.249
12610.45.69.250/3110.45.69.250 – 10.45.69.25110.45.69.251
12710.45.69.252/3110.45.69.252 – 10.45.69.25310.45.69.253
12810.45.69.254/3110.45.69.254 – 10.45.69.25510.45.69.255
01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefixsubnet maskaddresseshostsin your /24
/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-
/23255.255.254.0512510-
/24255.255.255.02562541
/25255.255.255.1281281262 split →
/26255.255.255.19264624 split →
/27255.255.255.22432308 split →
/28255.255.255.240161416 split →
/29255.255.255.2488632 split →
/30255.255.255.2524264 split →
/31255.255.255.25422128 split →
/32255.255.255.25511256 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 →