0383 is not a country code. Numbers inside a country start like this: Molėtai (Lithuania), Qendër, Fier (Albania), Andalgalá, Catamarca (Argentina), Larantuka (Indonesia) 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 |
|---|---|---|
 Molėtai · Lithuania | +370 383 … | 0383 … |
 Qendër, Fier · Albania | +355 383 … | 0383 … |
 Andalgalá, Catamarca · Argentina | +54 383 … | 0383 … |
| San Fernando del Valle de Catamarca, Catamarca · Argentina | +54 383 … | 0383 … |
 Larantuka · Indonesia | +62 383 … | 0383 … |
 Vetlanda · Sweden | +46 383 … | 0383 … |
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.