Is it possible to have two differnt sites with the same URL?

Bountiful Wi-Fi just got a call from someone saying that there's a company in China that's using the "www.bountifulwifi.com" URL. Is that possible? Most would think not, but then the questions was post on LinkedIn to see if anyone knew anything about this subject. The answers received were not expected; apparently, it IS possible.

This was the best response:

"The mapping between IP address and the URL is defined by the DNS system and ultimately the 13 root servers. To mess with a domain you would have to compromise the DNS system. This could be done at a lower level if you had control of a DNS server below the root level. However, the interference would not be obvious to everyone on the Internet, only those relying on that lower level DNS server.

"My advice to you if you are worried would be to track down the person making the claim and have them take screen shots. Then try to find another person in a similar location (e.g. on the same network or using the same ISP). If you start to gather real evidence of a problem, expand your investigation. If you can't get evidence, write it off as nonsense."

There were two other answers that added to the first, and they were as follows:

"As suggested, China compromises the global DNS method by forcing the entire country to make use of a secondary authoritative DNS, that filters out all the stuff they don't want their inhabitants to see. As such all of China will not be able to see what is going on in Tibet. Remember the Google issue?

"For those that don't know about it: Google would be stopped from their activities in China if they would not block all news about the Chinese occupation of Tibet to Chinese Internet users. The Chinese government would just redirect all Google URLs to another site. For a while, the entire world would not get any search on Tibet returned by Google.

"So yes, who controls the main DNS system in China can delegate any domain again, even though it has already been registered for the rest of the world. Face it, your machines must be evil!!! :-)"

"...if your URL is routing to another company in China it's not due to Google (implied by the evil comment) but the Chinese government.

"DNS (Domain Name Service) is what translates human-readable names (e.g. 'www.microsoft.com') into the binary IP addresses that are actually used to move data packets around on the Internet. All China has done is to re-route traffic looking for bountifulwifi.com to a different IP address, and it likely only cost a small bribe."