0994 is not a country code. Numbers inside a country start like this: Changji, Xinjiang (China), IR-MCI (Iran), Kanoya, Kagoshima (Japan), Claro (Peru) 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 |
|---|---|---|
 Changji, Xinjiang · China | +86 994 … | 0994 … |
 IR-MCI · Iran | +98 994 … | 0994 … |
 Kanoya, Kagoshima · Japan | +81 994 … | 0994 … |
 Claro · Peru | +51 994 … | 0994 … |
| Entel · Peru | +51 994 … | 0994 … |
| Movistar · Peru | +51 994 … | 0994 … |
 Dito · Philippines | +63 994 … | 0994 … |
 Syriatel · Syria | +963 994 … | 0994 … |
 G-Mobile · Vietnam | +84 994 … | 0994 … |
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.