Please see my earlier message above. An Xfinity store staffer told me that no unlocked store-bought phones would be accepted as compatible. I did not ask if getting them set up on another carrier would make them acceptable.
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Could it be that the Pixel 3A has to be already registered as a customer of a carrier in order for its IMEI to be recognized? Perhaps only as customer for a postpaid service? Perhaps only if the phone was bought from the carrier?
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