It seems that Quora is not best for such data, since they can grow old rather quickly. As of today, the estimate for number of servers is around 80 million. However this speaks only about "internet" servers. However private datacenters are full

Main > Computer > Internet. incredible about this process is that a message can leave one computer and travel halfway across the world through several different networks and arrive at another computer in a fraction of a second! Every Web server on the Internet conforms to the hypertext transfer protocol One of the Most Important Internet Hubs in the World Is in And, at one point along its journey, the data will likely pass through the Ethernet switches at 60 Hudson Street, one of the most densly-packed network hubs on the Internet. The A.V. Club Deadspin WorldTimeServer.com: Current Local Time and Date in any Zone

Demographics of Internet and Home Broadband Usage in the

Dec 06, 2013

World Time Server shows current local time and date in cities and countries in all time zones, adjusted for Daylight Saving Time rules automatically.

World Time Server shows current local time and date in cities and countries in all time zones, adjusted for Daylight Saving Time rules automatically. IANA — Root Servers The authoritative name servers that serve the DNS root zone, commonly known as the “root servers”, are a network of hundreds of servers in many countries around the world. They are configured in the DNS root zone as 13 named authorities, as follows. List of Root Servers