Called at 6 a.m. this morning...and then continued to call three more times in the next 15 minutes. Phone call appears to be coming from Nigeria, but I definately do not know or have family there. Didn't speak until the final call, but there was a lot of noise in the background. In the last call he said Hello and I told him to not call me again. I had a problem with calls from Nigeria over the winter as well, including this number but the voice on the other end, while always male, was never the same person twice.