0234 is not a country code. Numbers inside a country start like this: Ararat/Urtsadzor, Ararat (Armenia), Bochum (Germany), Indramayu (Indonesia), Sakata, Yamagata (Japan) 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 |
|---|---|---|
 Ararat/Urtsadzor, Ararat · Armenia | +374 234 … | 0234 … |
| Ararat/Vedi, Ararat · Armenia | +374 234 … | 0234 … |
| Ararat/Vedi/Vosketap, Ararat · Armenia | +374 234 … | 0234 … |
| 6 more in Armenia | ||
 Bochum · Germany | +49 234 … | 0234 … |
 Indramayu · Indonesia | +62 234 … | 0234 … |
 Sakata, Yamagata · Japan | +81 234 … | 0234 … |
 Bacău · Romania | +40 234 … | 0234 … |
 Miranda · Venezuela | +58 234 … | 0234 … |
 Thua Thien-Hue Province · Vietnam | +84 234 … | 0234 … |
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.