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
private IP (RFC 1918)172.16.14.0/24
network172.16.14.0/24
broadcast172.16.14.255
first host172.16.14.1
last host172.16.14.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classB
ipcalc 172.16.14.0/24
address10101100.00010000.00001110.00000000
subnet mask11111111.11111111.11111111.00000000
network10101100.00010000.00001110.00000000
broadcast10101100.00010000.00001110.11111111
green = network part, grey = host part
hex0xac100e00
decimal2886733312
reverse dns0.14.16.172.in-addr.arpa
ipv4-mapped::ffff:ac10:e00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
1172.16.14.0/31172.16.14.0 – 172.16.14.1172.16.14.1
2172.16.14.2/31172.16.14.2 – 172.16.14.3172.16.14.3
3172.16.14.4/31172.16.14.4 – 172.16.14.5172.16.14.5
4172.16.14.6/31172.16.14.6 – 172.16.14.7172.16.14.7
5172.16.14.8/31172.16.14.8 – 172.16.14.9172.16.14.9
6172.16.14.10/31172.16.14.10 – 172.16.14.11172.16.14.11
7172.16.14.12/31172.16.14.12 – 172.16.14.13172.16.14.13
8172.16.14.14/31172.16.14.14 – 172.16.14.15172.16.14.15
9172.16.14.16/31172.16.14.16 – 172.16.14.17172.16.14.17
10172.16.14.18/31172.16.14.18 – 172.16.14.19172.16.14.19
11172.16.14.20/31172.16.14.20 – 172.16.14.21172.16.14.21
12172.16.14.22/31172.16.14.22 – 172.16.14.23172.16.14.23
13172.16.14.24/31172.16.14.24 – 172.16.14.25172.16.14.25
14172.16.14.26/31172.16.14.26 – 172.16.14.27172.16.14.27
15172.16.14.28/31172.16.14.28 – 172.16.14.29172.16.14.29
16172.16.14.30/31172.16.14.30 – 172.16.14.31172.16.14.31
17172.16.14.32/31172.16.14.32 – 172.16.14.33172.16.14.33
18172.16.14.34/31172.16.14.34 – 172.16.14.35172.16.14.35
19172.16.14.36/31172.16.14.36 – 172.16.14.37172.16.14.37
20172.16.14.38/31172.16.14.38 – 172.16.14.39172.16.14.39
21172.16.14.40/31172.16.14.40 – 172.16.14.41172.16.14.41
22172.16.14.42/31172.16.14.42 – 172.16.14.43172.16.14.43
23172.16.14.44/31172.16.14.44 – 172.16.14.45172.16.14.45
24172.16.14.46/31172.16.14.46 – 172.16.14.47172.16.14.47
25172.16.14.48/31172.16.14.48 – 172.16.14.49172.16.14.49
26172.16.14.50/31172.16.14.50 – 172.16.14.51172.16.14.51
27172.16.14.52/31172.16.14.52 – 172.16.14.53172.16.14.53
28172.16.14.54/31172.16.14.54 – 172.16.14.55172.16.14.55
29172.16.14.56/31172.16.14.56 – 172.16.14.57172.16.14.57
30172.16.14.58/31172.16.14.58 – 172.16.14.59172.16.14.59
31172.16.14.60/31172.16.14.60 – 172.16.14.61172.16.14.61
32172.16.14.62/31172.16.14.62 – 172.16.14.63172.16.14.63
33172.16.14.64/31172.16.14.64 – 172.16.14.65172.16.14.65
34172.16.14.66/31172.16.14.66 – 172.16.14.67172.16.14.67
35172.16.14.68/31172.16.14.68 – 172.16.14.69172.16.14.69
36172.16.14.70/31172.16.14.70 – 172.16.14.71172.16.14.71
37172.16.14.72/31172.16.14.72 – 172.16.14.73172.16.14.73
38172.16.14.74/31172.16.14.74 – 172.16.14.75172.16.14.75
39172.16.14.76/31172.16.14.76 – 172.16.14.77172.16.14.77
40172.16.14.78/31172.16.14.78 – 172.16.14.79172.16.14.79
41172.16.14.80/31172.16.14.80 – 172.16.14.81172.16.14.81
42172.16.14.82/31172.16.14.82 – 172.16.14.83172.16.14.83
43172.16.14.84/31172.16.14.84 – 172.16.14.85172.16.14.85
44172.16.14.86/31172.16.14.86 – 172.16.14.87172.16.14.87
45172.16.14.88/31172.16.14.88 – 172.16.14.89172.16.14.89
46172.16.14.90/31172.16.14.90 – 172.16.14.91172.16.14.91
47172.16.14.92/31172.16.14.92 – 172.16.14.93172.16.14.93
48172.16.14.94/31172.16.14.94 – 172.16.14.95172.16.14.95
49172.16.14.96/31172.16.14.96 – 172.16.14.97172.16.14.97
50172.16.14.98/31172.16.14.98 – 172.16.14.99172.16.14.99
51172.16.14.100/31172.16.14.100 – 172.16.14.101172.16.14.101
52172.16.14.102/31172.16.14.102 – 172.16.14.103172.16.14.103
53172.16.14.104/31172.16.14.104 – 172.16.14.105172.16.14.105
54172.16.14.106/31172.16.14.106 – 172.16.14.107172.16.14.107
55172.16.14.108/31172.16.14.108 – 172.16.14.109172.16.14.109
56172.16.14.110/31172.16.14.110 – 172.16.14.111172.16.14.111
57172.16.14.112/31172.16.14.112 – 172.16.14.113172.16.14.113
58172.16.14.114/31172.16.14.114 – 172.16.14.115172.16.14.115
59172.16.14.116/31172.16.14.116 – 172.16.14.117172.16.14.117
60172.16.14.118/31172.16.14.118 – 172.16.14.119172.16.14.119
61172.16.14.120/31172.16.14.120 – 172.16.14.121172.16.14.121
62172.16.14.122/31172.16.14.122 – 172.16.14.123172.16.14.123
63172.16.14.124/31172.16.14.124 – 172.16.14.125172.16.14.125
64172.16.14.126/31172.16.14.126 – 172.16.14.127172.16.14.127
65172.16.14.128/31172.16.14.128 – 172.16.14.129172.16.14.129
66172.16.14.130/31172.16.14.130 – 172.16.14.131172.16.14.131
67172.16.14.132/31172.16.14.132 – 172.16.14.133172.16.14.133
68172.16.14.134/31172.16.14.134 – 172.16.14.135172.16.14.135
69172.16.14.136/31172.16.14.136 – 172.16.14.137172.16.14.137
70172.16.14.138/31172.16.14.138 – 172.16.14.139172.16.14.139
71172.16.14.140/31172.16.14.140 – 172.16.14.141172.16.14.141
72172.16.14.142/31172.16.14.142 – 172.16.14.143172.16.14.143
73172.16.14.144/31172.16.14.144 – 172.16.14.145172.16.14.145
74172.16.14.146/31172.16.14.146 – 172.16.14.147172.16.14.147
75172.16.14.148/31172.16.14.148 – 172.16.14.149172.16.14.149
76172.16.14.150/31172.16.14.150 – 172.16.14.151172.16.14.151
77172.16.14.152/31172.16.14.152 – 172.16.14.153172.16.14.153
78172.16.14.154/31172.16.14.154 – 172.16.14.155172.16.14.155
79172.16.14.156/31172.16.14.156 – 172.16.14.157172.16.14.157
80172.16.14.158/31172.16.14.158 – 172.16.14.159172.16.14.159
81172.16.14.160/31172.16.14.160 – 172.16.14.161172.16.14.161
82172.16.14.162/31172.16.14.162 – 172.16.14.163172.16.14.163
83172.16.14.164/31172.16.14.164 – 172.16.14.165172.16.14.165
84172.16.14.166/31172.16.14.166 – 172.16.14.167172.16.14.167
85172.16.14.168/31172.16.14.168 – 172.16.14.169172.16.14.169
86172.16.14.170/31172.16.14.170 – 172.16.14.171172.16.14.171
87172.16.14.172/31172.16.14.172 – 172.16.14.173172.16.14.173
88172.16.14.174/31172.16.14.174 – 172.16.14.175172.16.14.175
89172.16.14.176/31172.16.14.176 – 172.16.14.177172.16.14.177
90172.16.14.178/31172.16.14.178 – 172.16.14.179172.16.14.179
91172.16.14.180/31172.16.14.180 – 172.16.14.181172.16.14.181
92172.16.14.182/31172.16.14.182 – 172.16.14.183172.16.14.183
93172.16.14.184/31172.16.14.184 – 172.16.14.185172.16.14.185
94172.16.14.186/31172.16.14.186 – 172.16.14.187172.16.14.187
95172.16.14.188/31172.16.14.188 – 172.16.14.189172.16.14.189
96172.16.14.190/31172.16.14.190 – 172.16.14.191172.16.14.191
97172.16.14.192/31172.16.14.192 – 172.16.14.193172.16.14.193
98172.16.14.194/31172.16.14.194 – 172.16.14.195172.16.14.195
99172.16.14.196/31172.16.14.196 – 172.16.14.197172.16.14.197
100172.16.14.198/31172.16.14.198 – 172.16.14.199172.16.14.199
101172.16.14.200/31172.16.14.200 – 172.16.14.201172.16.14.201
102172.16.14.202/31172.16.14.202 – 172.16.14.203172.16.14.203
103172.16.14.204/31172.16.14.204 – 172.16.14.205172.16.14.205
104172.16.14.206/31172.16.14.206 – 172.16.14.207172.16.14.207
105172.16.14.208/31172.16.14.208 – 172.16.14.209172.16.14.209
106172.16.14.210/31172.16.14.210 – 172.16.14.211172.16.14.211
107172.16.14.212/31172.16.14.212 – 172.16.14.213172.16.14.213
108172.16.14.214/31172.16.14.214 – 172.16.14.215172.16.14.215
109172.16.14.216/31172.16.14.216 – 172.16.14.217172.16.14.217
110172.16.14.218/31172.16.14.218 – 172.16.14.219172.16.14.219
111172.16.14.220/31172.16.14.220 – 172.16.14.221172.16.14.221
112172.16.14.222/31172.16.14.222 – 172.16.14.223172.16.14.223
113172.16.14.224/31172.16.14.224 – 172.16.14.225172.16.14.225
114172.16.14.226/31172.16.14.226 – 172.16.14.227172.16.14.227
115172.16.14.228/31172.16.14.228 – 172.16.14.229172.16.14.229
116172.16.14.230/31172.16.14.230 – 172.16.14.231172.16.14.231
117172.16.14.232/31172.16.14.232 – 172.16.14.233172.16.14.233
118172.16.14.234/31172.16.14.234 – 172.16.14.235172.16.14.235
119172.16.14.236/31172.16.14.236 – 172.16.14.237172.16.14.237
120172.16.14.238/31172.16.14.238 – 172.16.14.239172.16.14.239
121172.16.14.240/31172.16.14.240 – 172.16.14.241172.16.14.241
122172.16.14.242/31172.16.14.242 – 172.16.14.243172.16.14.243
123172.16.14.244/31172.16.14.244 – 172.16.14.245172.16.14.245
124172.16.14.246/31172.16.14.246 – 172.16.14.247172.16.14.247
125172.16.14.248/31172.16.14.248 – 172.16.14.249172.16.14.249
126172.16.14.250/31172.16.14.250 – 172.16.14.251172.16.14.251
127172.16.14.252/31172.16.14.252 – 172.16.14.253172.16.14.253
128172.16.14.254/31172.16.14.254 – 172.16.14.255172.16.14.255
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 →