Last Updated:
Monday, 26 May 2025 By: Steve Warner

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CCNA™

 IPv4 Subnet Calculator

v55.25e  


     
 
Decimal IP Address:2886729763( http://2886729763 )
IP Address:172.16.0.35/31( 0xAC100023 )
Subnet Mask:255.255.255.254( 0xFFFFFFFE )
Wildcard (Inverse) Mask:0.0.0.1( 0x00000001 )
Network Address:172.16.0.34( 0xAC100022 )
Broadcast Address:172.16.0.35( 0xAC100023 )
Binary IP Address:10101100.00010000.00000000.00100011
Binary Subnet Mask:11111111.11111111.11111111.11111110
AND
Binary Network Address:10101100.00010000.00000000.00100010
 
Binary Broadcast Address:10101100.00010000.00000000.00100011
Class of Address:B ( RFC1918 )
Number of Subnets:32768
Number of IP:2
Number of Useable Hosts:0
in-addr.arpa format:35.0.16.172.in-addr.arpa
Hostname:Not Resolvable
GEOIP Location: -
 
NAT64 Address:64:FF9B::AC10:0023
ISATAP Address:FE80::0200:5EFE:AC10:0023
mapped IPV4:::ffff:AC10:0023::/48
6to4:2002:AC10:0023::/48
<Prev

Subnet Network First Usable IP Last Usable IP Broadcast 0 172.16.0.0 172.16.0.1 172.16.0.0 172.16.0.1 1 172.16.0.2 172.16.0.3 172.16.0.2 172.16.0.3 2 172.16.0.4 172.16.0.5 172.16.0.4 172.16.0.5 3 172.16.0.6 172.16.0.7 172.16.0.6 172.16.0.7 4 172.16.0.8 172.16.0.9 172.16.0.8 172.16.0.9 5 172.16.0.10 172.16.0.11 172.16.0.10 172.16.0.11 6 172.16.0.12 172.16.0.13 172.16.0.12 172.16.0.13 7 172.16.0.14 172.16.0.15 172.16.0.14 172.16.0.15 8 172.16.0.16 172.16.0.17 172.16.0.16 172.16.0.17 9 172.16.0.18 172.16.0.19 172.16.0.18 172.16.0.19 10 172.16.0.20 172.16.0.21 172.16.0.20 172.16.0.21 11 172.16.0.22 172.16.0.23 172.16.0.22 172.16.0.23 12 172.16.0.24 172.16.0.25 172.16.0.24 172.16.0.25 13 172.16.0.26 172.16.0.27 172.16.0.26 172.16.0.27 14 172.16.0.28 172.16.0.29 172.16.0.28 172.16.0.29 15 172.16.0.30 172.16.0.31 172.16.0.30 172.16.0.31 16 172.16.0.32 172.16.0.33 172.16.0.32 172.16.0.33 17 172.16.0.34 172.16.0.35 172.16.0.34 172.16.0.35 18 172.16.0.36 172.16.0.37 172.16.0.36 172.16.0.37 19 172.16.0.38 172.16.0.39 172.16.0.38 172.16.0.39 20 172.16.0.40 172.16.0.41 172.16.0.40 172.16.0.41 21 172.16.0.42 172.16.0.43 172.16.0.42 172.16.0.43 22 172.16.0.44 172.16.0.45 172.16.0.44 172.16.0.45 23 172.16.0.46 172.16.0.47 172.16.0.46 172.16.0.47 24 172.16.0.48 172.16.0.49 172.16.0.48 172.16.0.49 25 172.16.0.50 172.16.0.51 172.16.0.50 172.16.0.51 26 172.16.0.52 172.16.0.53 172.16.0.52 172.16.0.53 27 172.16.0.54 172.16.0.55 172.16.0.54 172.16.0.55 28 172.16.0.56 172.16.0.57 172.16.0.56 172.16.0.57 29 172.16.0.58 172.16.0.59 172.16.0.58 172.16.0.59 30 172.16.0.60 172.16.0.61 172.16.0.60 172.16.0.61 31 172.16.0.62 172.16.0.63 172.16.0.62 172.16.0.63 32 172.16.0.64 172.16.0.65 172.16.0.64 172.16.0.65 33 172.16.0.66 172.16.0.67 172.16.0.66 172.16.0.67 34 172.16.0.68 172.16.0.69 172.16.0.68 172.16.0.69 35 172.16.0.70 172.16.0.71 172.16.0.70 172.16.0.71 36 172.16.0.72 172.16.0.73 172.16.0.72 172.16.0.73 37 172.16.0.74 172.16.0.75 172.16.0.74 172.16.0.75 38 172.16.0.76 172.16.0.77 172.16.0.76 172.16.0.77 39 172.16.0.78 172.16.0.79 172.16.0.78 172.16.0.79 40 172.16.0.80 172.16.0.81 172.16.0.80 172.16.0.81 41 172.16.0.82 172.16.0.83 172.16.0.82 172.16.0.83 42 172.16.0.84 172.16.0.85 172.16.0.84 172.16.0.85 43 172.16.0.86 172.16.0.87 172.16.0.86 172.16.0.87 44 172.16.0.88 172.16.0.89 172.16.0.88 172.16.0.89 45 172.16.0.90 172.16.0.91 172.16.0.90 172.16.0.91 46 172.16.0.92 172.16.0.93 172.16.0.92 172.16.0.93 47 172.16.0.94 172.16.0.95 172.16.0.94 172.16.0.95 48 172.16.0.96 172.16.0.97 172.16.0.96 172.16.0.97 49 172.16.0.98 172.16.0.99 172.16.0.98 172.16.0.99 50 172.16.0.100 172.16.0.101 172.16.0.100 172.16.0.101 51 172.16.0.102 172.16.0.103 172.16.0.102 172.16.0.103 52 172.16.0.104 172.16.0.105 172.16.0.104 172.16.0.105 53 172.16.0.106 172.16.0.107 172.16.0.106 172.16.0.107 54 172.16.0.108 172.16.0.109 172.16.0.108 172.16.0.109 55 172.16.0.110 172.16.0.111 172.16.0.110 172.16.0.111 56 172.16.0.112 172.16.0.113 172.16.0.112 172.16.0.113 57 172.16.0.114 172.16.0.115 172.16.0.114 172.16.0.115 58 172.16.0.116 172.16.0.117 172.16.0.116 172.16.0.117 59 172.16.0.118 172.16.0.119 172.16.0.118 172.16.0.119 60 172.16.0.120 172.16.0.121 172.16.0.120 172.16.0.121 61 172.16.0.122 172.16.0.123 172.16.0.122 172.16.0.123 62 172.16.0.124 172.16.0.125 172.16.0.124 172.16.0.125 63 172.16.0.126 172.16.0.127 172.16.0.126 172.16.0.127 64 172.16.0.128 172.16.0.129 172.16.0.128 172.16.0.129 65 172.16.0.130 172.16.0.131 172.16.0.130 172.16.0.131 66 172.16.0.132 172.16.0.133 172.16.0.132 172.16.0.133 67 172.16.0.134 172.16.0.135 172.16.0.134 172.16.0.135 68 172.16.0.136 172.16.0.137 172.16.0.136 172.16.0.137 69 172.16.0.138 172.16.0.139 172.16.0.138 172.16.0.139 70 172.16.0.140 172.16.0.141 172.16.0.140 172.16.0.141 71 172.16.0.142 172.16.0.143 172.16.0.142 172.16.0.143 72 172.16.0.144 172.16.0.145 172.16.0.144 172.16.0.145 73 172.16.0.146 172.16.0.147 172.16.0.146 172.16.0.147 74 172.16.0.148 172.16.0.149 172.16.0.148 172.16.0.149 75 172.16.0.150 172.16.0.151 172.16.0.150 172.16.0.151 76 172.16.0.152 172.16.0.153 172.16.0.152 172.16.0.153 77 172.16.0.154 172.16.0.155 172.16.0.154 172.16.0.155 78 172.16.0.156 172.16.0.157 172.16.0.156 172.16.0.157 79 172.16.0.158 172.16.0.159 172.16.0.158 172.16.0.159 80 172.16.0.160 172.16.0.161 172.16.0.160 172.16.0.161 81 172.16.0.162 172.16.0.163 172.16.0.162 172.16.0.163 82 172.16.0.164 172.16.0.165 172.16.0.164 172.16.0.165 83 172.16.0.166 172.16.0.167 172.16.0.166 172.16.0.167 84 172.16.0.168 172.16.0.169 172.16.0.168 172.16.0.169 85 172.16.0.170 172.16.0.171 172.16.0.170 172.16.0.171 86 172.16.0.172 172.16.0.173 172.16.0.172 172.16.0.173 87 172.16.0.174 172.16.0.175 172.16.0.174 172.16.0.175 88 172.16.0.176 172.16.0.177 172.16.0.176 172.16.0.177 89 172.16.0.178 172.16.0.179 172.16.0.178 172.16.0.179 90 172.16.0.180 172.16.0.181 172.16.0.180 172.16.0.181 91 172.16.0.182 172.16.0.183 172.16.0.182 172.16.0.183 92 172.16.0.184 172.16.0.185 172.16.0.184 172.16.0.185 93 172.16.0.186 172.16.0.187 172.16.0.186 172.16.0.187 94 172.16.0.188 172.16.0.189 172.16.0.188 172.16.0.189 95 172.16.0.190 172.16.0.191 172.16.0.190 172.16.0.191 96 172.16.0.192 172.16.0.193 172.16.0.192 172.16.0.193 97 172.16.0.194 172.16.0.195 172.16.0.194 172.16.0.195 98 172.16.0.196 172.16.0.197 172.16.0.196 172.16.0.197 99 172.16.0.198 172.16.0.199 172.16.0.198 172.16.0.199 100 172.16.0.200 172.16.0.201 172.16.0.200 172.16.0.201 101 172.16.0.202 172.16.0.203 172.16.0.202 172.16.0.203 102 172.16.0.204 172.16.0.205 172.16.0.204 172.16.0.205 103 172.16.0.206 172.16.0.207 172.16.0.206 172.16.0.207 104 172.16.0.208 172.16.0.209 172.16.0.208 172.16.0.209 105 172.16.0.210 172.16.0.211 172.16.0.210 172.16.0.211 106 172.16.0.212 172.16.0.213 172.16.0.212 172.16.0.213 107 172.16.0.214 172.16.0.215 172.16.0.214 172.16.0.215 108 172.16.0.216 172.16.0.217 172.16.0.216 172.16.0.217 109 172.16.0.218 172.16.0.219 172.16.0.218 172.16.0.219 110 172.16.0.220 172.16.0.221 172.16.0.220 172.16.0.221 111 172.16.0.222 172.16.0.223 172.16.0.222 172.16.0.223 112 172.16.0.224 172.16.0.225 172.16.0.224 172.16.0.225 113 172.16.0.226 172.16.0.227 172.16.0.226 172.16.0.227 114 172.16.0.228 172.16.0.229 172.16.0.228 172.16.0.229 115 172.16.0.230 172.16.0.231 172.16.0.230 172.16.0.231 116 172.16.0.232 172.16.0.233 172.16.0.232 172.16.0.233 117 172.16.0.234 172.16.0.235 172.16.0.234 172.16.0.235 118 172.16.0.236 172.16.0.237 172.16.0.236 172.16.0.237 119 172.16.0.238 172.16.0.239 172.16.0.238 172.16.0.239 120 172.16.0.240 172.16.0.241 172.16.0.240 172.16.0.241 121 172.16.0.242 172.16.0.243 172.16.0.242 172.16.0.243 122 172.16.0.244 172.16.0.245 172.16.0.244 172.16.0.245 123 172.16.0.246 172.16.0.247 172.16.0.246 172.16.0.247 124 172.16.0.248 172.16.0.249 172.16.0.248 172.16.0.249 125 172.16.0.250 172.16.0.251 172.16.0.250 172.16.0.251 126 172.16.0.252 172.16.0.253 172.16.0.252 172.16.0.253 127 172.16.0.254 172.16.0.255 172.16.0.254 172.16.0.255

Next> CIDR Block Network Broadcast Subnet Mask No. IP's 172.16.0.35/32 172.16.0.35 - 172.16.0.35 255.255.255.255 1 172.16.0.34/31 172.16.0.34 - 172.16.0.35 255.255.255.254 2 172.16.0.32/30 172.16.0.32 - 172.16.0.35 255.255.255.252 4 172.16.0.32/29 172.16.0.32 - 172.16.0.39 255.255.255.248 8 172.16.0.32/28 172.16.0.32 - 172.16.0.47 255.255.255.240 16 172.16.0.32/27 172.16.0.32 - 172.16.0.63 255.255.255.224 32 172.16.0.0/26 172.16.0.0 - 172.16.0.63 255.255.255.192 64 172.16.0.0/25 172.16.0.0 - 172.16.0.127 255.255.255.128 128 172.16.0.0/24 172.16.0.0 - 172.16.0.255 255.255.255.0 256 172.16.0.0/23 172.16.0.0 - 172.16.1.255 255.255.254.0 512 172.16.0.0/22 172.16.0.0 - 172.16.3.255 255.255.252.0 1024 172.16.0.0/21 172.16.0.0 - 172.16.7.255 255.255.248.0 2048 172.16.0.0/20 172.16.0.0 - 172.16.15.255 255.255.240.0 4096 172.16.0.0/19 172.16.0.0 - 172.16.31.255 255.255.224.0 8192 172.16.0.0/18 172.16.0.0 - 172.16.63.255 255.255.192.0 16384 172.16.0.0/17 172.16.0.0 - 172.16.127.255 255.255.128.0 32768 172.16.0.0/16 172.16.0.0 - 172.16.255.255 255.255.0.0 65536 172.16.0.0/15 172.16.0.0 - 172.17.255.255 255.254.0.0 131072 172.16.0.0/14 172.16.0.0 - 172.19.255.255 255.252.0.0 262144 172.16.0.0/13 172.16.0.0 - 172.23.255.255 255.248.0.0 524288 172.16.0.0/12 172.16.0.0 - 172.31.255.255 255.240.0.0 1048576 172.0.0.0/11 172.0.0.0 - 172.31.255.255 255.224.0.0 2097152 172.0.0.0/10 172.0.0.0 - 172.63.255.255 255.192.0.0 4194304 172.0.0.0/9 172.0.0.0 - 172.127.255.255 255.128.0.0 8388608 172.0.0.0/8 172.0.0.0 - 172.255.255.255 255.0.0.0 16777216 172.0.0.0/7 172.0.0.0 - 173.255.255.255 254.0.0.0 33554432 172.0.0.0/6 172.0.0.0 - 175.255.255.255 252.0.0.0 67108864 168.0.0.0/5 168.0.0.0 - 175.255.255.255 248.0.0.0 134217728 160.0.0.0/4 160.0.0.0 - 175.255.255.255 240.0.0.0 268435456 160.0.0.0/3 160.0.0.0 - 191.255.255.255 224.0.0.0 536870912 128.0.0.0/2 128.0.0.0 - 191.255.255.255 192.0.0.0 1073741824 128.0.0.0/1 128.0.0.0 - 255.255.255.255 128.0.0.0 2147483648




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