HOW TO SHIFT TRAFFIC FROM one URL TO ANOTHER URL

 One way to move traffic seamlessly to a new different url is to set up a redirect on the first site, but that means the redirecting server must be active and cooperative.   If one has a copy of all the data on the redirecting server, including the logs of the IP numbers of the computers that have hit the site in the past, can those IP numbers be used to get out the message that there is a re-direct? 

In other words, can an email be sent to a mere IP number? without an email address? just to the IP number?

This question is apropos to shifting traffic from Realneo.us to Realneo.org.