A few years ago i was reading about several people who experienced this phenomenon. For the life of me, I dont remember where...

There was a study (unsure of the legitimacy of the study) and the conclusion I read was that some people are able to hear the extremely high frequencies (which is allegedly impossible) that cordless phones and mobile phones operate on pending certain environmental conditions. Some people were able to even hear tones before texts and emails.

As far as the strange numbers registering on your Id, possibly they are test signals from your service provider as I have received them before.

Just some thoughts...

One thing I do remember from this article was them saying that most of the people who experienced this suffered from Tinnitus, how ever that didnt seem to explain how they were able to correctly predict incoming calls.