"List of the county prefixes in Romania" (به رومانیایی). National Regulatory Authority for Communications and Information Technology (Romania). ۲۰۰۵-۰۴-۲۶. Retrieved 2010-08-22.
The postal code format is of the type xxyzw, with xx being the numbers associated with the county; the digits y, z, and w indicate the city, the street, part of the street, or even the building of the address.
Landline Telephone numbering plan are of the type +40-abb-xxx-xxx, where 40 is the country code, bb is the area code, and a is a digit indicating the operator: 2 for the former national operator, Romtelecom, and 3 for the other ground telephone networks. Mobile phone numbers, however, only start with the digit 7 (for a) and do not follow county borders.
The development region code follows the format ROxyz, where x is the macroregion number, y represents the development region and is either 1 or 2, and z is the county number within the region.
