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nibbler nibbler at ccc.deHi Karsten, all, On Thu, 25 Feb 2010 20:50:54 +0100 Karsten Nohl <nohl at virginia.edu> wrote: > > My question is, is this MSC number, visible from the mobile phone > > side? If yes, somebody could actually wardrive, to get the MSC > > number-to-location mapping? > > Can airprobe, or OpenBTS help? > > Creating the {MSC -> location} mapping database would be a very > worthwhile exercise. The data collection would have to happen from > phones. Either we create an application for one of the popular phone > platforms (Symbian, Android, iPhone). Anybody on the list knows if > these phones expose the MSC number to application software? Yes, the answer is: No. The phone does not know about this. It would have to be a service that incorporates a user or mobile phone software based part that knows about the location and a network based part that can perform a SMS routing request. Both of these would have to be correlated. The implementation of this in a way that honors privacy as well as security is left as an exercise to the reader. This is most certainly not a task within the scope of osmocom-bb. cheers, nibbler p.s. the relevant cell specific information that is known to the phone can be found in the first seven fields e.g. here: http://www.nobbi.com/btsdb.php?netw=all&type=c&search=__L447L