No idea why you should be charged for it as it's a standard Vodafone Mobile number, NOT a Personal Number as you suggested in your previous request, so sorry we cannot help you beyond that.  

Just try ringing it to see who answers.

As for your previous list! I think that the oldie "Never, never on a Monday . . . ." comes to mind. We don't mind assisting or guiding you but the main work on this must be your job, especially when such information is so EASILY available by Googling !!  

I found most of them in 5 minutes using Google.

Try putting the number you want to find details of into this link, then click on . I use it quite a lot as it's very useful in tracking locations, but not so much for mobiles, though it does give the call rates.

It will also give you the cost of calls to the numbers. If you try 0844 0544020 which is the Dial-up number for Virgin.net it tells you that it's band i26, 4p (daytime), 2p (off peak), 1p (weekend) including VAT and is supplied by NTL Group. If you look at 0845 4550280 which is also a Dial-up for Virgin.net, it gives much the same but advises it's charged at Local Rate (we wont get into that debate here!)

07769 027009 could also have been ported to another Telco though as mine would have shown Orange if checked on there. However I went from Orange to T-Mobile & on to BT-Mobile but it only shows the original supplier not the current.

I hope that has been of some help to you.