Some of the curious codes used by terrorists are described in the Washington Post (in an article by Craig Whitlock):

"In September 2005, a British court convicted Andrew Rowe, a Jamaican convert to Islam, on terrorism charges after authorities found a secret code book in which he gave double meanings to the brand numbers of Nokia phones. Pretending to be a traveling cellphone salesman, Rowe would use "Nokia 3310" to refer to money, "Nokia 3410" to signal potential trouble from the police and "Nokia 3610" as code for weapons. Rowe received a 15-year prison sentence, even though prosecutors and police said his precise plans remained a mystery."

Why do I blog this? curiosity towards random facts about codes used by terrorists. A new usage of Nokia phone model names.