VHF coverage / HF requirement

[Finzolas]

Hi All,

I need your help again.
For commercial transport, 2 independant communication means are required.

For routes where VHF coverage is not guaranteed, we need 2 HF.

Would someone know where I could find updated maps of VHF Comm coverage for several flight levels (FL150, FL 300, FL370, FL 410)?
Especially for Eastern Europe (Russia), Middle East and Africa?

Thanks again for your help.

Zolas