0291 is not a country code. Numbers inside a country start like this: Ceadir Lunga (Moldova), Meschede (Germany), Jodhpur, Rajasthan (India), Tomin/Luzni, Dibër (Albania) 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 |
|---|---|---|
 Ceadir Lunga · Moldova | +373 291 … | 0291 … |
 Meschede · Germany | +49 291 … | 0291 … |
 Jodhpur, Rajasthan · India | +91 291 … | 0291 … |
 Tomin/Luzni, Dibër · Albania | +355 291 … | 0291 … |
 Bahía Blanca, Buenos Aires · Argentina | +54 291 … | 0291 … |
 Demak/Jepara/Kudus · Indonesia | +62 291 … | 0291 … |
 Hokota, Ibaraki · Japan | +81 291 … | 0291 … |
 Zero2 · Malawi | +265 291 … | 0291 … |
 Aregua · Paraguay | +595 291 … | 0291 … |
 Hedesunda-Österfärnebo · Sweden | +46 291 … | 0291 … |
 Monagas · Venezuela | +58 291 … | 0291 … |
 Bac Lieu Province · Vietnam | +84 291 … | 0291 … |
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.