Is it possible to get the country code?

**Issue by [Bruno-Furtado](https://github.com/Bruno-Furtado)**
_Monday Jan 07, 2019 at 22:17 GMT_
_Originally opened as https://github.com/googlesamples/android-credentials/issues/31_

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It's possible to get the full phone number using the SMS Retriever API, but we can get only the country code?
- If yes.. How?
- If not.. Is there any way to extract it from the phone number?

Start by reviewing the SMS Retriever API documentation and the identity-samples project context referenced by the issue. Determine whether country-code access is supported or whether extracting it from the retrieved phone number is in scope; the issue is complete only when that question has a documented, verified answer.

Written by the indexing model from the issue text.