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"Mobiltel customers travelling in and around the Black Sea will have access to 3G, UMTS and HSDPA services starting 1 July 2006.
Customers in the Southern Black Sea will have access to Bulgarian telcommunications operator Mobitel's 3G network as of July 1, 2006. Starting 8 July, UMTS and HSDPA network coverage will extend to Varna and the resorts along the Northern Black Sea. Resorts in Burgas and Albena already receive 3G network coverage."
Source: Digital Media Europe