Noticed
this article today on the hosts who have the most servers.
It quotes OVH as having 40,000 servers and they appear to have aquired this information here:
http://www.ovh.co.uk/aboutus/
Since I've heard the 50,000 server figure touted by OVH staff, might be an idea to update the page?
In this particular survey, it would move OVH from 5th place to about 2nd.