0571 is not a country code. Numbers inside a country start like this: Cellfie (Georgia), Minden Westfalen (Germany), Hangzhou, Zhejiang (China), Aligarh, Uttar Pradesh (India) 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 |
|---|---|---|
 Cellfie · Georgia | +995 571 … | 0571 … |
 Minden Westfalen · Germany | +49 571 … | 0571 … |
 Hangzhou, Zhejiang · China | +86 571 … | 0571 … |
 Aligarh, Uttar Pradesh · India | +91 571 … | 0571 … |
 Twello · Netherlands | +31 571 … | 0571 … |
 Shijak, Durrës · Albania | +355 571 … | 0571 … |
 Jhinaidah/Panchbibi · Bangladesh | +880 571 … | 0571 … |
 Charlottenberg-Åmotfors · Sweden | +46 571 … | 0571 … |
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.