jamieb wrote on May 15
th, 2006 at 11:35am:
Same number just called me & hung up- hence I found this site so maybe not a bad thing. I think it may be O2, is that your mobile company too?
Whilst I can't say for definate, I don't think that it will be O2.
"So how did they know I was on O2?" I hear you ask.
The answer's simple. Each of the networks have number prefixes allocated to them. The lists of these prefixes are freely available from the telecommunications regulator, Ofcom. You can download them from its website.
For example, 07802 and 07715 are O2 prefixes, 07790 and 07812 are Orange's. Unless a user has transferred to another network and kept their number, then this theory will hold good. As alot of people don't tend to do this, it's very likely that they will 'guess' your network correctly.
Thus, when they call you using this techinique, all they know (or think they know) is your network operator. They don't know what tariff you're on or whether it's pay as you go or pay monthly. They won't even know your name and address.
I therefore suggest that you keep it that way. You don't know who they are, so would you really want them to know your personal details?
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Unknown number - 0870 6093144 (Read 15,613 times)
