The first owner Vladimir Grashnov – the former CEO of Bulgarian mobile phone company Mobitel which issued the number – died of cancer in 2001 aged just 48.
Despite a spotless business record there were persistent rumours that his cancer had been caused by a business rival using radioactive poisoning.
The number then passed to Bulgarian mafia boss, Konstantin Dimitrov, who was gunned down in 2003 by a lone assassin in the Netherlands during a trip to inspect his £500 million drug smuggling empire.
Dimitrov, who died aged 31, had the mobile with him when he was shot while eating out with a model.
Russian mafia bosses – jealous of his drug smuggling operation – were said to have been behind the killing.
The phone number then passed to Konstantin Dishliev, a crooked businessman, who was gunned down outside an Indian restaurant in Bulgaria’s capital Sofia after taking over the jinxed line.