He was based in Harlem, the black community uptown Manhattan in New York City. As of some years back I think he was still active since I drove by the place and saw the sign (think it looked like a movie marquee). You could do a web search and find out more.
If you are looking for Rev. Ike, just log onto his website at www.revike.org.
Rev. Ike is still very much active in his ministry, but I think he wishes to only inspire, rather than seek fame like the average various ministries these days.