0223 is not a country code. Numbers inside a country start like this: Bjni, Kotayk (Armenia), Den Helder (Netherlands), Mar del Plata, Buenos Aires (Argentina), Iwanuma, Miyagi (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 |
|---|---|---|
 Bjni, Kotayk · Armenia | +374 223 … | 0223 … |
| Hankavan/Hrazdan/Tsaghkadzor, Kotayk · Armenia | +374 223 … | 0223 … |
| Hrazdan, Kotayk · Armenia | +374 223 … | 0223 … |
| 5 more in Armenia | ||
 Den Helder · Netherlands | +31 223 … | 0223 … |
 Mar del Plata, Buenos Aires · Argentina | +54 223 … | 0223 … |
 Iwanuma, Miyagi · Japan | +81 223 … | 0223 … |
 Nalaikh · Mongolia | +976 223 … | 0223 … |
 Fagersta-Norberg · Sweden | +46 223 … | 0223 … |
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.