Newbie question: meanings of IP address number groups?

[James A Griffin]

Marty wrote:
> 
> Is there a simple description somewhere that explains the purpose of the 4
> groups of numbers in IP addresses?
> 
> I've been told that there is a tabular list somewhere that equates the first
> group of numbers with  geographic areas (?).
> 
> What do the three groups following do?  Or are they just sequentially
> assigned?
> 
> Any explanations or references,  "IP Addresses for Dummies" type,   would be
> appreciated.

An interesting tutoral on "IP Addressing and subnetting" can be found
at:
http://www.learntosubnet.com/

The content is good, but note; you must have Microsofts's Internet
Explorer and Media Player to use the site.  I guess this indicates that
it fits your criteria of '"IP Addressing for Dummies" type'.

HTH
Jim