When you have the site name (the DNS) and you need the IP address (the numerical string), you can get that by doing a PING. Easy enough!

But, what can you do if you have an IP address and you want to know the DNS or alpha name for the site?

First you need to realize that you won't find every site here. But maybe if we can get everybody to register their sites, this type of stuff can become a greater resource. That may take a while. In the meantime, here are a few tools that might come in handy:

Check out the Solarwinds.net submask calculator which also does IP/DNS automatic conversions - complete and free!
(Other great Solarwinds software. )

- A site to enter the IP and get the DNS returned.

- A site that provides a geographical location of the site IF the site has been registered. Most are NOT!

- A site that provides a DNS Resource Directory with just about everything you'd ever want to know about DNS/IP stuff. No, I haven't read it all yet!

- A site with software for certain platforms to do DNS/IP Look-Ups from log files for Macintosh, Linux x86, and Sun.

- There's also a slick piece of free softward called the URL Discombobulator for playing with URL numbering