0490 is not a country code. Numbers inside a country start like this: Tellicherry, Kerala (India), Orange (Belgium), Västervik (Sweden). 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 |
|---|---|---|
 Tellicherry, Kerala · India | +91 490 … | 0490 … |
 Orange · Belgium | +32 490 … | 0490 … |
 Västervik · Sweden | +46 490 … | 0490 … |
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.