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)10.45.95.0/24
network10.45.95.0/24
broadcast10.45.95.255
first host10.45.95.1
last host10.45.95.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.45.95.0/24
address00001010.00101101.01011111.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.00101101.01011111.00000000
broadcast00001010.00101101.01011111.11111111
green = network part, grey = host part
hex0x0a2d5f00
decimal170745600
reverse dns0.95.45.10.in-addr.arpa
ipv4-mapped::ffff:a2d:5f00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.45.95.0/3110.45.95.0 – 10.45.95.110.45.95.1
210.45.95.2/3110.45.95.2 – 10.45.95.310.45.95.3
310.45.95.4/3110.45.95.4 – 10.45.95.510.45.95.5
410.45.95.6/3110.45.95.6 – 10.45.95.710.45.95.7
510.45.95.8/3110.45.95.8 – 10.45.95.910.45.95.9
610.45.95.10/3110.45.95.10 – 10.45.95.1110.45.95.11
710.45.95.12/3110.45.95.12 – 10.45.95.1310.45.95.13
810.45.95.14/3110.45.95.14 – 10.45.95.1510.45.95.15
910.45.95.16/3110.45.95.16 – 10.45.95.1710.45.95.17
1010.45.95.18/3110.45.95.18 – 10.45.95.1910.45.95.19
1110.45.95.20/3110.45.95.20 – 10.45.95.2110.45.95.21
1210.45.95.22/3110.45.95.22 – 10.45.95.2310.45.95.23
1310.45.95.24/3110.45.95.24 – 10.45.95.2510.45.95.25
1410.45.95.26/3110.45.95.26 – 10.45.95.2710.45.95.27
1510.45.95.28/3110.45.95.28 – 10.45.95.2910.45.95.29
1610.45.95.30/3110.45.95.30 – 10.45.95.3110.45.95.31
1710.45.95.32/3110.45.95.32 – 10.45.95.3310.45.95.33
1810.45.95.34/3110.45.95.34 – 10.45.95.3510.45.95.35
1910.45.95.36/3110.45.95.36 – 10.45.95.3710.45.95.37
2010.45.95.38/3110.45.95.38 – 10.45.95.3910.45.95.39
2110.45.95.40/3110.45.95.40 – 10.45.95.4110.45.95.41
2210.45.95.42/3110.45.95.42 – 10.45.95.4310.45.95.43
2310.45.95.44/3110.45.95.44 – 10.45.95.4510.45.95.45
2410.45.95.46/3110.45.95.46 – 10.45.95.4710.45.95.47
2510.45.95.48/3110.45.95.48 – 10.45.95.4910.45.95.49
2610.45.95.50/3110.45.95.50 – 10.45.95.5110.45.95.51
2710.45.95.52/3110.45.95.52 – 10.45.95.5310.45.95.53
2810.45.95.54/3110.45.95.54 – 10.45.95.5510.45.95.55
2910.45.95.56/3110.45.95.56 – 10.45.95.5710.45.95.57
3010.45.95.58/3110.45.95.58 – 10.45.95.5910.45.95.59
3110.45.95.60/3110.45.95.60 – 10.45.95.6110.45.95.61
3210.45.95.62/3110.45.95.62 – 10.45.95.6310.45.95.63
3310.45.95.64/3110.45.95.64 – 10.45.95.6510.45.95.65
3410.45.95.66/3110.45.95.66 – 10.45.95.6710.45.95.67
3510.45.95.68/3110.45.95.68 – 10.45.95.6910.45.95.69
3610.45.95.70/3110.45.95.70 – 10.45.95.7110.45.95.71
3710.45.95.72/3110.45.95.72 – 10.45.95.7310.45.95.73
3810.45.95.74/3110.45.95.74 – 10.45.95.7510.45.95.75
3910.45.95.76/3110.45.95.76 – 10.45.95.7710.45.95.77
4010.45.95.78/3110.45.95.78 – 10.45.95.7910.45.95.79
4110.45.95.80/3110.45.95.80 – 10.45.95.8110.45.95.81
4210.45.95.82/3110.45.95.82 – 10.45.95.8310.45.95.83
4310.45.95.84/3110.45.95.84 – 10.45.95.8510.45.95.85
4410.45.95.86/3110.45.95.86 – 10.45.95.8710.45.95.87
4510.45.95.88/3110.45.95.88 – 10.45.95.8910.45.95.89
4610.45.95.90/3110.45.95.90 – 10.45.95.9110.45.95.91
4710.45.95.92/3110.45.95.92 – 10.45.95.9310.45.95.93
4810.45.95.94/3110.45.95.94 – 10.45.95.9510.45.95.95
4910.45.95.96/3110.45.95.96 – 10.45.95.9710.45.95.97
5010.45.95.98/3110.45.95.98 – 10.45.95.9910.45.95.99
5110.45.95.100/3110.45.95.100 – 10.45.95.10110.45.95.101
5210.45.95.102/3110.45.95.102 – 10.45.95.10310.45.95.103
5310.45.95.104/3110.45.95.104 – 10.45.95.10510.45.95.105
5410.45.95.106/3110.45.95.106 – 10.45.95.10710.45.95.107
5510.45.95.108/3110.45.95.108 – 10.45.95.10910.45.95.109
5610.45.95.110/3110.45.95.110 – 10.45.95.11110.45.95.111
5710.45.95.112/3110.45.95.112 – 10.45.95.11310.45.95.113
5810.45.95.114/3110.45.95.114 – 10.45.95.11510.45.95.115
5910.45.95.116/3110.45.95.116 – 10.45.95.11710.45.95.117
6010.45.95.118/3110.45.95.118 – 10.45.95.11910.45.95.119
6110.45.95.120/3110.45.95.120 – 10.45.95.12110.45.95.121
6210.45.95.122/3110.45.95.122 – 10.45.95.12310.45.95.123
6310.45.95.124/3110.45.95.124 – 10.45.95.12510.45.95.125
6410.45.95.126/3110.45.95.126 – 10.45.95.12710.45.95.127
6510.45.95.128/3110.45.95.128 – 10.45.95.12910.45.95.129
6610.45.95.130/3110.45.95.130 – 10.45.95.13110.45.95.131
6710.45.95.132/3110.45.95.132 – 10.45.95.13310.45.95.133
6810.45.95.134/3110.45.95.134 – 10.45.95.13510.45.95.135
6910.45.95.136/3110.45.95.136 – 10.45.95.13710.45.95.137
7010.45.95.138/3110.45.95.138 – 10.45.95.13910.45.95.139
7110.45.95.140/3110.45.95.140 – 10.45.95.14110.45.95.141
7210.45.95.142/3110.45.95.142 – 10.45.95.14310.45.95.143
7310.45.95.144/3110.45.95.144 – 10.45.95.14510.45.95.145
7410.45.95.146/3110.45.95.146 – 10.45.95.14710.45.95.147
7510.45.95.148/3110.45.95.148 – 10.45.95.14910.45.95.149
7610.45.95.150/3110.45.95.150 – 10.45.95.15110.45.95.151
7710.45.95.152/3110.45.95.152 – 10.45.95.15310.45.95.153
7810.45.95.154/3110.45.95.154 – 10.45.95.15510.45.95.155
7910.45.95.156/3110.45.95.156 – 10.45.95.15710.45.95.157
8010.45.95.158/3110.45.95.158 – 10.45.95.15910.45.95.159
8110.45.95.160/3110.45.95.160 – 10.45.95.16110.45.95.161
8210.45.95.162/3110.45.95.162 – 10.45.95.16310.45.95.163
8310.45.95.164/3110.45.95.164 – 10.45.95.16510.45.95.165
8410.45.95.166/3110.45.95.166 – 10.45.95.16710.45.95.167
8510.45.95.168/3110.45.95.168 – 10.45.95.16910.45.95.169
8610.45.95.170/3110.45.95.170 – 10.45.95.17110.45.95.171
8710.45.95.172/3110.45.95.172 – 10.45.95.17310.45.95.173
8810.45.95.174/3110.45.95.174 – 10.45.95.17510.45.95.175
8910.45.95.176/3110.45.95.176 – 10.45.95.17710.45.95.177
9010.45.95.178/3110.45.95.178 – 10.45.95.17910.45.95.179
9110.45.95.180/3110.45.95.180 – 10.45.95.18110.45.95.181
9210.45.95.182/3110.45.95.182 – 10.45.95.18310.45.95.183
9310.45.95.184/3110.45.95.184 – 10.45.95.18510.45.95.185
9410.45.95.186/3110.45.95.186 – 10.45.95.18710.45.95.187
9510.45.95.188/3110.45.95.188 – 10.45.95.18910.45.95.189
9610.45.95.190/3110.45.95.190 – 10.45.95.19110.45.95.191
9710.45.95.192/3110.45.95.192 – 10.45.95.19310.45.95.193
9810.45.95.194/3110.45.95.194 – 10.45.95.19510.45.95.195
9910.45.95.196/3110.45.95.196 – 10.45.95.19710.45.95.197
10010.45.95.198/3110.45.95.198 – 10.45.95.19910.45.95.199
10110.45.95.200/3110.45.95.200 – 10.45.95.20110.45.95.201
10210.45.95.202/3110.45.95.202 – 10.45.95.20310.45.95.203
10310.45.95.204/3110.45.95.204 – 10.45.95.20510.45.95.205
10410.45.95.206/3110.45.95.206 – 10.45.95.20710.45.95.207
10510.45.95.208/3110.45.95.208 – 10.45.95.20910.45.95.209
10610.45.95.210/3110.45.95.210 – 10.45.95.21110.45.95.211
10710.45.95.212/3110.45.95.212 – 10.45.95.21310.45.95.213
10810.45.95.214/3110.45.95.214 – 10.45.95.21510.45.95.215
10910.45.95.216/3110.45.95.216 – 10.45.95.21710.45.95.217
11010.45.95.218/3110.45.95.218 – 10.45.95.21910.45.95.219
11110.45.95.220/3110.45.95.220 – 10.45.95.22110.45.95.221
11210.45.95.222/3110.45.95.222 – 10.45.95.22310.45.95.223
11310.45.95.224/3110.45.95.224 – 10.45.95.22510.45.95.225
11410.45.95.226/3110.45.95.226 – 10.45.95.22710.45.95.227
11510.45.95.228/3110.45.95.228 – 10.45.95.22910.45.95.229
11610.45.95.230/3110.45.95.230 – 10.45.95.23110.45.95.231
11710.45.95.232/3110.45.95.232 – 10.45.95.23310.45.95.233
11810.45.95.234/3110.45.95.234 – 10.45.95.23510.45.95.235
11910.45.95.236/3110.45.95.236 – 10.45.95.23710.45.95.237
12010.45.95.238/3110.45.95.238 – 10.45.95.23910.45.95.239
12110.45.95.240/3110.45.95.240 – 10.45.95.24110.45.95.241
12210.45.95.242/3110.45.95.242 – 10.45.95.24310.45.95.243
12310.45.95.244/3110.45.95.244 – 10.45.95.24510.45.95.245
12410.45.95.246/3110.45.95.246 – 10.45.95.24710.45.95.247
12510.45.95.248/3110.45.95.248 – 10.45.95.24910.45.95.249
12610.45.95.250/3110.45.95.250 – 10.45.95.25110.45.95.251
12710.45.95.252/3110.45.95.252 – 10.45.95.25310.45.95.253
12810.45.95.254/3110.45.95.254 – 10.45.95.25510.45.95.255
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 →