[Techtalk] Classes of IP-adresses

[Brian Sweeney]

I don't know if this is what you mean, but in general the Class A's use 
subnet mask 255.0.0.0, B's use 255.255.0.0, C's 255.255.255.0, and D's 
are reserved (multicast, right?).  As for why they chose the letters 
A,B,C,D, couldn't tell ya.

Sorry if that's not what you're looking for.  If you do figure out why 
they're named with those letters, let me know! ;-)

-Brian

Mette Lund wrote:

> Hello..
> 
> Do anyone know _why_ they are called class A (1.*.*.*-126.*.*.*), 
> class B (128.1.*.*-191.254.*.*),  class C (192.0.1.*-223.255.254.*), 
> and D (224.*.*.*-255.*.*.*)?
> 
> I've tryed looking on the net, but I can't find the answer I'm looking 
> for.
> 
> Thanx.. :)
> 
> - Mette from Denmark
> 
> 
> 
> 
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