Google says yes. While some may question the advantage of multiple ip hosting in certain situations, in many circumstances, there is no room for questioning. One such area is where internationalization is concerned.
Are you surprised? Of course, many users choose multiple IP address hosting for networks of micro sites and any other number of reasons. International SEO does absolutely hinge on local IP address allocations, however. Not convinced? Here it is directly from Matt Cutts (head of Google’s Web Spam Team).
This is one of many reasons that in addition to offering SEO hosting in the United States, we also offer multiple class C’s of IP address space in the United Kingdom, Germany, and Sweden.