088 is not a country code. Numbers inside a country start like this: VivaCell-MTS (Armenia), AIS (Thailand), Abaiara - CE (Brazil). The first digit 0 is the trunk prefix for domestic calls and is dropped from abroad.
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| Area or operator | From abroad | Inside the country |
|---|---|---|
 VivaCell-MTS · Armenia | +374 88 … | 088 … |
 AIS · Thailand | +66 88 … | 088 … |
| DTAC · Thailand | +66 88 … | 088 … |
| True Move · Thailand | +66 88 … | 088 … |
 Abaiara - CE · Brazil | +55 88 … | 088 … |
| Acaraú - CE · Brazil | +55 88 … | 088 … |
| Acopiara - CE · Brazil | +55 88 … | 088 … |
| 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.