043 is not a country code. Numbers inside a country start like this: Team Telecom Armenia (Armenia), Kalasin/Khon Kaen/Maha Sarakham/Roi Et (Thailand), Maastricht (Netherlands), Zurich (Switzerland) and others. The first digit 0 is the trunk prefix for domestic calls and is dropped from abroad.
Have the full number? Check it in the number lookup.
| Area or operator | From abroad | Inside the country |
|---|---|---|
 Team Telecom Armenia · Armenia | +374 43 … | 043 … |
 Kalasin/Khon Kaen/Maha Sarakham/Roi Et · Thailand | +66 43 … | 043 … |
 Maastricht · Netherlands | +31 43 … | 043 … |
 Zurich · Switzerland | +41 43 … | 043 … |
 Abatiá - PR · Brazil | +55 43 … | 043 … |
| Alvorada do Sul - PR · Brazil | +55 43 … | 043 … |
| Andirá - PR · Brazil | +55 43 … | 043 … |
| 73 more in Brazil | ||
If a number starts with +, the first 1–3 digits are the country code. If it starts with 0 (8 in Russia and Kazakhstan), it is a domestic number: an area or operator code follows, and from abroad the 0 or 8 is replaced with + and the country code. The same digits can mean different places, so where the call came from matters.