Romania
Romania’s country identifiers are standardized for international communication and commerce. Its ISO 3166-1 alpha-2 code is RO, with the alpha-3 code ROU, used in global databases, shipping, and trade documentation. The international calling code is +40, required when dialing Romanian landlines and mobile numbers from abroad. The country-code top-level domain (ccTLD) is .ro, used for Romania-based websites and email infrastructure. The official currency is the Romanian Leu, abbreviated RON under ISO 4217, essential for financial transactions, invoicing, and cross-border business. These codes appear systematically in telecommunications, domain registration, logistics, and banking, enabling precise routing and identification of Romanian entities across international systems.
- Calling code
- +40
- ISO alpha-2
- RO
- ISO alpha-3
- ROU
- ISO numeric
- 642
- ccTLD
- .ro
- Currency
- RONRomanian leu (RON)
- Region
- Europe
- Capital
- Bucharest
- Time zones
- Europe/Bucharest
- Postal format
- 6-Digits - NNNNNN
How to call Romania
From outside Romania, dial your international access prefix, then +40, then the national number. Drop the leading trunk zero when the destination numbering plan requires it.
+40 [area or mobile code] [local number]