Get ISO 3166 code on mobile device(Unity3d)?

I try to get two latter code from county name at android/iOS. RegionInfo.CurrentRegion. … useless for mobile, it return values at windows.
Ex. Application.systemLanguage return “Russian”. I try to compare it with CultureInfo.EnglishName/DisplayName , but it return “Russia” .

What other ways to get there???

I found this one, really easy: unity3d/LanguageHelper.cs at master · MartinSchultz/unity3d · GitHub

Cheers!