What kind of data center are you after? They have hundreds of servers running at the same time... For name server only it has dozens of different IP addresses.
I want to know the different IP addresses of Yahoo,so that I can verify my positions in Yahoo search results becz its entirely giving different results day 2 day?
Here it is: http://www.whois.sc/66.196.65.0 Remember that it's very difficult to do what you're trying to do manually basically cuz yahoo just keeps changes datacenters faster than any other search engine. Sometimes it happens between 2 searches and there are dozens of datacenter swappings that can occur over a short period. Also Y! datacenter synchronization takes much more than 2 days, it can sometimes be more than 2 months Hold the breast
O sit, the above IP range is for INKTOMI. sorry yahoo search is between the 216.109.117.xxx range i think
Here's a list of about a dozen Y! DCs and slurp IPs. http://www.searchenginegenie.com/yahoo-slurp-datacentres-ip-address-list.htm /*tom*/