Issuing Authority of this note? [solved]

Hi, As far as I know, this note is for the central African region. Doesn't it have any issuing country? Like euro, it can be use in eurozone but have code for issuing country. My 500 CFA Franc (2020) note code is D6. Can anyone help me find the country? Thank you

With the new series “Gamme 2020,” The Banque des États de l'Afrique Centrale (BEAC) abandoned the use of a letter to indicate for which country the banknote was printed. 

“D6” only indicates the sub-series of this 500 CFA note. Nothing more. It does not indicate a country of the BEAC's monetary zone. 

Likewise, the prefix letter of the Euro banknotes of the second series does not indicate a country. It indicates the printer where the note was made. It does not indicate for which country, National Central Bank resp., the note was printed.