027 is not a country code. Numbers inside a country start like this: Wuhan, Hubei (China), Prokuplje (Serbia), Sion (Switzerland), Acioli - ES (Brazil) 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 |
|---|---|---|
 Wuhan, Hubei · China | +86 27 … | 027 … |
 Prokuplje · Serbia | +381 27 … | 027 … |
 Sion · Switzerland | +41 27 … | 027 … |
 Acioli - ES · Brazil | +55 27 … | 027 … |
| Afonso Cláudio - ES · Brazil | +55 27 … | 027 … |
| Água Doce do Norte - ES · Brazil | +55 27 … | 027 … |
| 61 more in Brazil | ||
 Khost · Afghanistan | +93 27 … | 027 … |
 Chlef · Algeria | +213 27 … | 027 … |
 at · Ghana | +233 27 … | 027 … |
 Bantry · Ireland | +353 27 … | 027 … |
 Maebashi, Gunma · Japan | +81 27 … | 027 … |
| Takasaki, Gunma · Japan | +81 27 … | 027 … |
 South Lebanon · Lebanon | +961 27 … | 027 … |
 Abu Issa · Libya | +218 27 … | 027 … |
| Azizia · Libya | +218 27 … | 027 … |
| Elmaya · Libya | +218 27 … | 027 … |
| 3 more in Libya | ||
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.