Can you identify appropriate APN from SIM IMSI code?

Question

I am looking for ways for a GSM/3G device to be able to automatically select the appropriate GPRS/Data settings for customer SIM cards, particularly where a service provider offers different parameters for different account types?

Is this possible, or will I need to code the device to try multiple parameter sets until successful?

Comments

As far as understood that if we can identify the APN from the SIM number, then answer is no.
However there is a provision of configuration of default APN on HSS/HLR I am not sure if you are looking for that.

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Sorry, but anyone who has an android will know that the answer is yes, since they do it. There is a huge file in the android code called etc/apns-full-conf.xml - but I don't know where to find the code to interpret it.