Regex matching for Address field in sms

[FatehAK]

Hi,

I was wondering if there is possibility to do regex based matching on the address field (sender) of an sms. Consider there are a bunch of sms's with address fields like this:
aaa, ddd, ccc, aab

Now I would like to return only those messages that start with aa (aaa, aab) and discard the rest. Is this possible in the library?