In fact, only two networks in Europe currently support the iPhone 5 on LTE: Deutsche Telekom in Germany, and EE in the U.K. (previously Everything Everywhere) which this week announced its new 4G LTE network. But it hasn’t even launched yet, though pegged for a November release date.
More:
http://www.zdnet.com/iphone-5-meet-europe-where-4g-really-means-3g-lte-is-scarce-7000004284/