0657 is not a country code. Numbers inside a country start like this: Jamshedpur, Bihar (India), A1 TA (Austria), Bakongan (Indonesia), Los (Sweden). 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 |
|---|---|---|
 Jamshedpur, Bihar · India | +91 657 … | 0657 … |
 A1 TA · Austria | +43 657 … | 0657 … |
 Bakongan · Indonesia | +62 657 … | 0657 … |
 Los · Sweden | +46 657 … | 0657 … |
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.