Last Updated:
Wednesday, 8 June 2022 By: Steve Warner

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CCNA™

 IPv4 Subnet Calculator

v88.20e  


     
 
Decimal IP Address:66017044( http://66017044 )
IP Address:3.239.87.20/30( 0x03EF5714 )
Subnet Mask:255.255.255.252( 0xFFFFFFFC )
Wildcard (Inverse) Mask:0.0.0.3( 0x00000003 )
Network Address:3.239.87.20( 0x03EF5714 )
Broadcast Address:3.239.87.23( 0x03EF5717 )
Binary IP Address:00000011.11101111.01010111.00010100
Binary Subnet Mask:11111111.11111111.11111111.11111100
AND
Binary Network Address:00000011.11101111.01010111.00010100
 
Binary Broadcast Address:00000011.11101111.01010111.00010111
Class of Address:A
Number of Subnets:4194304
Number of IP:4
Number of Useable Hosts:2
in-addr.arpa format:20.87.239.3.in-addr.arpa
Hostname:ec2-3-239-87-20.compute-1.amazonaws.com
GEOIP Location:US - United States
 
NAT64 Address:64:FF9B::03EF:5714
ISATAP Address:FE80::0200:5EFE:03EF:5714
mapped IPV4:::ffff:03EF:5714::/48
6to4:2002:03EF:5714::/48
<Prev

Subnet Network First Usable IP Last Usable IP Broadcast 0 3.239.87.0 3.239.87.1 3.239.87.2 3.239.87.3 1 3.239.87.4 3.239.87.5 3.239.87.6 3.239.87.7 2 3.239.87.8 3.239.87.9 3.239.87.10 3.239.87.11 3 3.239.87.12 3.239.87.13 3.239.87.14 3.239.87.15 4 3.239.87.16 3.239.87.17 3.239.87.18 3.239.87.19 5 3.239.87.20 3.239.87.21 3.239.87.22 3.239.87.23 6 3.239.87.24 3.239.87.25 3.239.87.26 3.239.87.27 7 3.239.87.28 3.239.87.29 3.239.87.30 3.239.87.31 8 3.239.87.32 3.239.87.33 3.239.87.34 3.239.87.35 9 3.239.87.36 3.239.87.37 3.239.87.38 3.239.87.39 10 3.239.87.40 3.239.87.41 3.239.87.42 3.239.87.43 11 3.239.87.44 3.239.87.45 3.239.87.46 3.239.87.47 12 3.239.87.48 3.239.87.49 3.239.87.50 3.239.87.51 13 3.239.87.52 3.239.87.53 3.239.87.54 3.239.87.55 14 3.239.87.56 3.239.87.57 3.239.87.58 3.239.87.59 15 3.239.87.60 3.239.87.61 3.239.87.62 3.239.87.63 16 3.239.87.64 3.239.87.65 3.239.87.66 3.239.87.67 17 3.239.87.68 3.239.87.69 3.239.87.70 3.239.87.71 18 3.239.87.72 3.239.87.73 3.239.87.74 3.239.87.75 19 3.239.87.76 3.239.87.77 3.239.87.78 3.239.87.79 20 3.239.87.80 3.239.87.81 3.239.87.82 3.239.87.83 21 3.239.87.84 3.239.87.85 3.239.87.86 3.239.87.87 22 3.239.87.88 3.239.87.89 3.239.87.90 3.239.87.91 23 3.239.87.92 3.239.87.93 3.239.87.94 3.239.87.95 24 3.239.87.96 3.239.87.97 3.239.87.98 3.239.87.99 25 3.239.87.100 3.239.87.101 3.239.87.102 3.239.87.103 26 3.239.87.104 3.239.87.105 3.239.87.106 3.239.87.107 27 3.239.87.108 3.239.87.109 3.239.87.110 3.239.87.111 28 3.239.87.112 3.239.87.113 3.239.87.114 3.239.87.115 29 3.239.87.116 3.239.87.117 3.239.87.118 3.239.87.119 30 3.239.87.120 3.239.87.121 3.239.87.122 3.239.87.123 31 3.239.87.124 3.239.87.125 3.239.87.126 3.239.87.127 32 3.239.87.128 3.239.87.129 3.239.87.130 3.239.87.131 33 3.239.87.132 3.239.87.133 3.239.87.134 3.239.87.135 34 3.239.87.136 3.239.87.137 3.239.87.138 3.239.87.139 35 3.239.87.140 3.239.87.141 3.239.87.142 3.239.87.143 36 3.239.87.144 3.239.87.145 3.239.87.146 3.239.87.147 37 3.239.87.148 3.239.87.149 3.239.87.150 3.239.87.151 38 3.239.87.152 3.239.87.153 3.239.87.154 3.239.87.155 39 3.239.87.156 3.239.87.157 3.239.87.158 3.239.87.159 40 3.239.87.160 3.239.87.161 3.239.87.162 3.239.87.163 41 3.239.87.164 3.239.87.165 3.239.87.166 3.239.87.167 42 3.239.87.168 3.239.87.169 3.239.87.170 3.239.87.171 43 3.239.87.172 3.239.87.173 3.239.87.174 3.239.87.175 44 3.239.87.176 3.239.87.177 3.239.87.178 3.239.87.179 45 3.239.87.180 3.239.87.181 3.239.87.182 3.239.87.183 46 3.239.87.184 3.239.87.185 3.239.87.186 3.239.87.187 47 3.239.87.188 3.239.87.189 3.239.87.190 3.239.87.191 48 3.239.87.192 3.239.87.193 3.239.87.194 3.239.87.195 49 3.239.87.196 3.239.87.197 3.239.87.198 3.239.87.199 50 3.239.87.200 3.239.87.201 3.239.87.202 3.239.87.203 51 3.239.87.204 3.239.87.205 3.239.87.206 3.239.87.207 52 3.239.87.208 3.239.87.209 3.239.87.210 3.239.87.211 53 3.239.87.212 3.239.87.213 3.239.87.214 3.239.87.215 54 3.239.87.216 3.239.87.217 3.239.87.218 3.239.87.219 55 3.239.87.220 3.239.87.221 3.239.87.222 3.239.87.223 56 3.239.87.224 3.239.87.225 3.239.87.226 3.239.87.227 57 3.239.87.228 3.239.87.229 3.239.87.230 3.239.87.231 58 3.239.87.232 3.239.87.233 3.239.87.234 3.239.87.235 59 3.239.87.236 3.239.87.237 3.239.87.238 3.239.87.239 60 3.239.87.240 3.239.87.241 3.239.87.242 3.239.87.243 61 3.239.87.244 3.239.87.245 3.239.87.246 3.239.87.247 62 3.239.87.248 3.239.87.249 3.239.87.250 3.239.87.251 63 3.239.87.252 3.239.87.253 3.239.87.254 3.239.87.255

Next> CIDR Block Network Broadcast Subnet Mask No. IP's 3.239.87.20/32 3.239.87.20 - 3.239.87.20 255.255.255.255 1 3.239.87.20/31 3.239.87.20 - 3.239.87.21 255.255.255.254 2 3.239.87.20/30 3.239.87.20 - 3.239.87.23 255.255.255.252 4 3.239.87.16/29 3.239.87.16 - 3.239.87.23 255.255.255.248 8 3.239.87.16/28 3.239.87.16 - 3.239.87.31 255.255.255.240 16 3.239.87.0/27 3.239.87.0 - 3.239.87.31 255.255.255.224 32 3.239.87.0/26 3.239.87.0 - 3.239.87.63 255.255.255.192 64 3.239.87.0/25 3.239.87.0 - 3.239.87.127 255.255.255.128 128 3.239.87.0/24 3.239.87.0 - 3.239.87.255 255.255.255.0 256 3.239.86.0/23 3.239.86.0 - 3.239.87.255 255.255.254.0 512 3.239.84.0/22 3.239.84.0 - 3.239.87.255 255.255.252.0 1024 3.239.80.0/21 3.239.80.0 - 3.239.87.255 255.255.248.0 2048 3.239.80.0/20 3.239.80.0 - 3.239.95.255 255.255.240.0 4096 3.239.64.0/19 3.239.64.0 - 3.239.95.255 255.255.224.0 8192 3.239.64.0/18 3.239.64.0 - 3.239.127.255 255.255.192.0 16384 3.239.0.0/17 3.239.0.0 - 3.239.127.255 255.255.128.0 32768 3.239.0.0/16 3.239.0.0 - 3.239.255.255 255.255.0.0 65536 3.238.0.0/15 3.238.0.0 - 3.239.255.255 255.254.0.0 131072 3.236.0.0/14 3.236.0.0 - 3.239.255.255 255.252.0.0 262144 3.232.0.0/13 3.232.0.0 - 3.239.255.255 255.248.0.0 524288 3.224.0.0/12 3.224.0.0 - 3.239.255.255 255.240.0.0 1048576 3.224.0.0/11 3.224.0.0 - 3.255.255.255 255.224.0.0 2097152 3.192.0.0/10 3.192.0.0 - 3.255.255.255 255.192.0.0 4194304 3.128.0.0/9 3.128.0.0 - 3.255.255.255 255.128.0.0 8388608 3.0.0.0/8 3.0.0.0 - 3.255.255.255 255.0.0.0 16777216 2.0.0.0/7 2.0.0.0 - 3.255.255.255 254.0.0.0 33554432 0.0.0.0/6 0.0.0.0 - 3.255.255.255 252.0.0.0 67108864 0.0.0.0/5 0.0.0.0 - 7.255.255.255 248.0.0.0 134217728 0.0.0.0/4 0.0.0.0 - 15.255.255.255 240.0.0.0 268435456 0.0.0.0/3 0.0.0.0 - 31.255.255.255 224.0.0.0 536870912 0.0.0.0/2 0.0.0.0 - 63.255.255.255 192.0.0.0 1073741824 0.0.0.0/1 0.0.0.0 - 127.255.255.255 128.0.0.0 2147483648




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