Mobile phone companies have the ability to spot iffy calls

Now isn't that interesting? Turns out that network providers can detect when a call is likely to be fraudulent. T-Mobile claimed it couldn't spot that 30+ calls to Romania from Spain in the middle of the night might suggest my phone had been nicked. Yet actually they could. They just wanted my money.

Just as a matter of interest, what do you call someone who benefits from the sale of stolen goods?