For what it's worth:
The SIM card does not know its own phone number. It knows an IMSI. The
association IMSI/MSISDN (=phone number) is done by the mobile network.

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On Thu, Dec 6, 2012 at 1:55 AM, babysnow <hdj1...@gmail.com> wrote:
> The phone number is the actual phone number this device is using, the number
> that stores in the SIM card...

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