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)10.7.77.0/24
network10.7.77.0/24
broadcast10.7.77.255
first host10.7.77.1
last host10.7.77.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.7.77.0/24
address00001010.00000111.01001101.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.00000111.01001101.00000000
broadcast00001010.00000111.01001101.11111111
green = network part, grey = host part
hex0x0a074d00
decimal168250624
reverse dns0.77.7.10.in-addr.arpa
ipv4-mapped::ffff:a07:4d00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.7.77.0/3110.7.77.0 – 10.7.77.110.7.77.1
210.7.77.2/3110.7.77.2 – 10.7.77.310.7.77.3
310.7.77.4/3110.7.77.4 – 10.7.77.510.7.77.5
410.7.77.6/3110.7.77.6 – 10.7.77.710.7.77.7
510.7.77.8/3110.7.77.8 – 10.7.77.910.7.77.9
610.7.77.10/3110.7.77.10 – 10.7.77.1110.7.77.11
710.7.77.12/3110.7.77.12 – 10.7.77.1310.7.77.13
810.7.77.14/3110.7.77.14 – 10.7.77.1510.7.77.15
910.7.77.16/3110.7.77.16 – 10.7.77.1710.7.77.17
1010.7.77.18/3110.7.77.18 – 10.7.77.1910.7.77.19
1110.7.77.20/3110.7.77.20 – 10.7.77.2110.7.77.21
1210.7.77.22/3110.7.77.22 – 10.7.77.2310.7.77.23
1310.7.77.24/3110.7.77.24 – 10.7.77.2510.7.77.25
1410.7.77.26/3110.7.77.26 – 10.7.77.2710.7.77.27
1510.7.77.28/3110.7.77.28 – 10.7.77.2910.7.77.29
1610.7.77.30/3110.7.77.30 – 10.7.77.3110.7.77.31
1710.7.77.32/3110.7.77.32 – 10.7.77.3310.7.77.33
1810.7.77.34/3110.7.77.34 – 10.7.77.3510.7.77.35
1910.7.77.36/3110.7.77.36 – 10.7.77.3710.7.77.37
2010.7.77.38/3110.7.77.38 – 10.7.77.3910.7.77.39
2110.7.77.40/3110.7.77.40 – 10.7.77.4110.7.77.41
2210.7.77.42/3110.7.77.42 – 10.7.77.4310.7.77.43
2310.7.77.44/3110.7.77.44 – 10.7.77.4510.7.77.45
2410.7.77.46/3110.7.77.46 – 10.7.77.4710.7.77.47
2510.7.77.48/3110.7.77.48 – 10.7.77.4910.7.77.49
2610.7.77.50/3110.7.77.50 – 10.7.77.5110.7.77.51
2710.7.77.52/3110.7.77.52 – 10.7.77.5310.7.77.53
2810.7.77.54/3110.7.77.54 – 10.7.77.5510.7.77.55
2910.7.77.56/3110.7.77.56 – 10.7.77.5710.7.77.57
3010.7.77.58/3110.7.77.58 – 10.7.77.5910.7.77.59
3110.7.77.60/3110.7.77.60 – 10.7.77.6110.7.77.61
3210.7.77.62/3110.7.77.62 – 10.7.77.6310.7.77.63
3310.7.77.64/3110.7.77.64 – 10.7.77.6510.7.77.65
3410.7.77.66/3110.7.77.66 – 10.7.77.6710.7.77.67
3510.7.77.68/3110.7.77.68 – 10.7.77.6910.7.77.69
3610.7.77.70/3110.7.77.70 – 10.7.77.7110.7.77.71
3710.7.77.72/3110.7.77.72 – 10.7.77.7310.7.77.73
3810.7.77.74/3110.7.77.74 – 10.7.77.7510.7.77.75
3910.7.77.76/3110.7.77.76 – 10.7.77.7710.7.77.77
4010.7.77.78/3110.7.77.78 – 10.7.77.7910.7.77.79
4110.7.77.80/3110.7.77.80 – 10.7.77.8110.7.77.81
4210.7.77.82/3110.7.77.82 – 10.7.77.8310.7.77.83
4310.7.77.84/3110.7.77.84 – 10.7.77.8510.7.77.85
4410.7.77.86/3110.7.77.86 – 10.7.77.8710.7.77.87
4510.7.77.88/3110.7.77.88 – 10.7.77.8910.7.77.89
4610.7.77.90/3110.7.77.90 – 10.7.77.9110.7.77.91
4710.7.77.92/3110.7.77.92 – 10.7.77.9310.7.77.93
4810.7.77.94/3110.7.77.94 – 10.7.77.9510.7.77.95
4910.7.77.96/3110.7.77.96 – 10.7.77.9710.7.77.97
5010.7.77.98/3110.7.77.98 – 10.7.77.9910.7.77.99
5110.7.77.100/3110.7.77.100 – 10.7.77.10110.7.77.101
5210.7.77.102/3110.7.77.102 – 10.7.77.10310.7.77.103
5310.7.77.104/3110.7.77.104 – 10.7.77.10510.7.77.105
5410.7.77.106/3110.7.77.106 – 10.7.77.10710.7.77.107
5510.7.77.108/3110.7.77.108 – 10.7.77.10910.7.77.109
5610.7.77.110/3110.7.77.110 – 10.7.77.11110.7.77.111
5710.7.77.112/3110.7.77.112 – 10.7.77.11310.7.77.113
5810.7.77.114/3110.7.77.114 – 10.7.77.11510.7.77.115
5910.7.77.116/3110.7.77.116 – 10.7.77.11710.7.77.117
6010.7.77.118/3110.7.77.118 – 10.7.77.11910.7.77.119
6110.7.77.120/3110.7.77.120 – 10.7.77.12110.7.77.121
6210.7.77.122/3110.7.77.122 – 10.7.77.12310.7.77.123
6310.7.77.124/3110.7.77.124 – 10.7.77.12510.7.77.125
6410.7.77.126/3110.7.77.126 – 10.7.77.12710.7.77.127
6510.7.77.128/3110.7.77.128 – 10.7.77.12910.7.77.129
6610.7.77.130/3110.7.77.130 – 10.7.77.13110.7.77.131
6710.7.77.132/3110.7.77.132 – 10.7.77.13310.7.77.133
6810.7.77.134/3110.7.77.134 – 10.7.77.13510.7.77.135
6910.7.77.136/3110.7.77.136 – 10.7.77.13710.7.77.137
7010.7.77.138/3110.7.77.138 – 10.7.77.13910.7.77.139
7110.7.77.140/3110.7.77.140 – 10.7.77.14110.7.77.141
7210.7.77.142/3110.7.77.142 – 10.7.77.14310.7.77.143
7310.7.77.144/3110.7.77.144 – 10.7.77.14510.7.77.145
7410.7.77.146/3110.7.77.146 – 10.7.77.14710.7.77.147
7510.7.77.148/3110.7.77.148 – 10.7.77.14910.7.77.149
7610.7.77.150/3110.7.77.150 – 10.7.77.15110.7.77.151
7710.7.77.152/3110.7.77.152 – 10.7.77.15310.7.77.153
7810.7.77.154/3110.7.77.154 – 10.7.77.15510.7.77.155
7910.7.77.156/3110.7.77.156 – 10.7.77.15710.7.77.157
8010.7.77.158/3110.7.77.158 – 10.7.77.15910.7.77.159
8110.7.77.160/3110.7.77.160 – 10.7.77.16110.7.77.161
8210.7.77.162/3110.7.77.162 – 10.7.77.16310.7.77.163
8310.7.77.164/3110.7.77.164 – 10.7.77.16510.7.77.165
8410.7.77.166/3110.7.77.166 – 10.7.77.16710.7.77.167
8510.7.77.168/3110.7.77.168 – 10.7.77.16910.7.77.169
8610.7.77.170/3110.7.77.170 – 10.7.77.17110.7.77.171
8710.7.77.172/3110.7.77.172 – 10.7.77.17310.7.77.173
8810.7.77.174/3110.7.77.174 – 10.7.77.17510.7.77.175
8910.7.77.176/3110.7.77.176 – 10.7.77.17710.7.77.177
9010.7.77.178/3110.7.77.178 – 10.7.77.17910.7.77.179
9110.7.77.180/3110.7.77.180 – 10.7.77.18110.7.77.181
9210.7.77.182/3110.7.77.182 – 10.7.77.18310.7.77.183
9310.7.77.184/3110.7.77.184 – 10.7.77.18510.7.77.185
9410.7.77.186/3110.7.77.186 – 10.7.77.18710.7.77.187
9510.7.77.188/3110.7.77.188 – 10.7.77.18910.7.77.189
9610.7.77.190/3110.7.77.190 – 10.7.77.19110.7.77.191
9710.7.77.192/3110.7.77.192 – 10.7.77.19310.7.77.193
9810.7.77.194/3110.7.77.194 – 10.7.77.19510.7.77.195
9910.7.77.196/3110.7.77.196 – 10.7.77.19710.7.77.197
10010.7.77.198/3110.7.77.198 – 10.7.77.19910.7.77.199
10110.7.77.200/3110.7.77.200 – 10.7.77.20110.7.77.201
10210.7.77.202/3110.7.77.202 – 10.7.77.20310.7.77.203
10310.7.77.204/3110.7.77.204 – 10.7.77.20510.7.77.205
10410.7.77.206/3110.7.77.206 – 10.7.77.20710.7.77.207
10510.7.77.208/3110.7.77.208 – 10.7.77.20910.7.77.209
10610.7.77.210/3110.7.77.210 – 10.7.77.21110.7.77.211
10710.7.77.212/3110.7.77.212 – 10.7.77.21310.7.77.213
10810.7.77.214/3110.7.77.214 – 10.7.77.21510.7.77.215
10910.7.77.216/3110.7.77.216 – 10.7.77.21710.7.77.217
11010.7.77.218/3110.7.77.218 – 10.7.77.21910.7.77.219
11110.7.77.220/3110.7.77.220 – 10.7.77.22110.7.77.221
11210.7.77.222/3110.7.77.222 – 10.7.77.22310.7.77.223
11310.7.77.224/3110.7.77.224 – 10.7.77.22510.7.77.225
11410.7.77.226/3110.7.77.226 – 10.7.77.22710.7.77.227
11510.7.77.228/3110.7.77.228 – 10.7.77.22910.7.77.229
11610.7.77.230/3110.7.77.230 – 10.7.77.23110.7.77.231
11710.7.77.232/3110.7.77.232 – 10.7.77.23310.7.77.233
11810.7.77.234/3110.7.77.234 – 10.7.77.23510.7.77.235
11910.7.77.236/3110.7.77.236 – 10.7.77.23710.7.77.237
12010.7.77.238/3110.7.77.238 – 10.7.77.23910.7.77.239
12110.7.77.240/3110.7.77.240 – 10.7.77.24110.7.77.241
12210.7.77.242/3110.7.77.242 – 10.7.77.24310.7.77.243
12310.7.77.244/3110.7.77.244 – 10.7.77.24510.7.77.245
12410.7.77.246/3110.7.77.246 – 10.7.77.24710.7.77.247
12510.7.77.248/3110.7.77.248 – 10.7.77.24910.7.77.249
12610.7.77.250/3110.7.77.250 – 10.7.77.25110.7.77.251
12710.7.77.252/3110.7.77.252 – 10.7.77.25310.7.77.253
12810.7.77.254/3110.7.77.254 – 10.7.77.25510.7.77.255
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 →