054 is not a country code. Numbers inside a country start like this: Etisalat (United Arab Emirates), Orange (Israel), Lampang/Nan/Phayao/Phrae (Thailand), Água Santa - RS (Brazil). 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 |
|---|---|---|
 Etisalat · United Arab Emirates | +971 54 … | 054 … |
 Orange · Israel | +972 54 … | 054 … |
 Lampang/Nan/Phayao/Phrae · Thailand | +66 54 … | 054 … |
 Água Santa - RS · Brazil | +55 54 … | 054 … |
| Alto Alegre - RS · Brazil | +55 54 … | 054 … |
| André da Rocha - RS · Brazil | +55 54 … | 054 … |
| 74 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.