A man has used ICANN’s freedom of information procedure to ask for “a list of all registered domains”, forcing the organization to politely decline.
Barry Carter wrote (pdf):
Per http://www.icann.org/en/transparency/didp-en.htm please provide me a list of all registered domains (including all public registrant information). If you are unable to provide this information, please let me know why.
As you might imagine, with the number of registered domains in the gTLDs and ccTLDs numbering in the hundreds of millions, that’s what you might call a Big Ask.
ICANN’s response (pdf) patiently explains that it doesn’t have such a list and that assembling one would constitute an unreasonable request under its Documentary Information Disclosure Policy.
Still, worth a shot, eh?