It is possible to get the list of allowed QIWI Wallet customer countries via API?

When a customer registers a wallet on the qiwi.com website, he should use his mobile phone number as his payment identifier.
The country calling codes drop-down contains a limited set of countries.
Is it possible to get this list programmatically to evade hardcoding it in a third-party application?

I have got the answer from QIWI Wallet support:

К сожалению, такой возможности нет.

It means no.

How to get the list of allowed QIWI Wallet customer countries manually?