I have noticed another pattern in the scams. Internet fraudsters are abusing the 070 numbers. These numbers are a service for people on the move, that allows them to divert their calls between several land lines and mobiles. Is it possible that some Nigerian telecoms operators are involved? So it's a premium-rate phonecall; identity theft and obtaining money by deception scam

Here's a few recent numbers from this board:

+447024081908

+447024088207

+447024028273

http://www.fraudwatchers.org/forums/showthread.php?t=3882

Fraudwatchers also publishes the formats of what's called '419 scams' and the poor English and other tell-tale signs can be seen clearly by making comparisons in their archives.

http://www.fraudwatchers.org/forums/forumdisplay.php?s=273f95035714c39657579b7d91d8623c&f=108

As an aside, the American Embassy has reported visa lottery scams on Nigerians from Abuja.