IP Address Geographic Location?

[Kimball Larsen]

I'm working on a small project for my family and need to be able to  
produce a map of the world with the geographic locations of specific  
IP addresses indicated on the map.  The list of specific IPs is quite  
large - > 500 of them.  I've found places online to look up the  
location of a single IP at a time, but wondered if anyone here knew of  
a way to look up large groups of IPs?

Thanks!

- Kimball
http://www.kimballlarsen.com


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