More Subnet Calculators
Latest news
10-2008 - AAAA support for DIG tool...
Try our DIG utility.
07-2008 - New IPv6 Subnet Calculator...
View this calculator.
06-2008 - Mobile version of network tools in beta...
View the beta.
06-2008 - First set of IPv6 network tools introduced...
Visit these tools.
06-2008 - Port Scanner tool to check port status...
Visit this tool.
Try our DIG utility.
07-2008 - New IPv6 Subnet Calculator...
View this calculator.
06-2008 - Mobile version of network tools in beta...
View the beta.
06-2008 - First set of IPv6 network tools introduced...
Visit these tools.
06-2008 - Port Scanner tool to check port status...
Visit this tool.
DEC to HEX calculator
Use this calculator when you know your IP number and Subnet Mask and want to find out the correct Router Address, Network Address, and Subnet Broadcast Address.
Note: Wharton Network Engineering has chosen a standard Router address at the network address plus one. For instance, if the local network is 127.100.100.0, then the Router would be 127.100.100.1, or if the local network number were 127.100.100.128 then the Router would be 127.100.100.129. Do not rely upon our standard for networks outside of Wharton which could easily follow some other standard, or no standard at all!
ie: It is common for admins to use 192.168.1.254 for the gateway / router and 192.168.1.1 for the DNS server etc.