Area Code 99 – Sopron
The phone area code for Sopron is 99 (international format +3699). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 99
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Sopron
Geographic Overview
The +36 99 country-code prefix is a geographic National Destination Code (NDC) assigned to the city of Sopron and its surrounding administrative district in northwestern Hungary. Sopron, known as the 'Gate of the Alps,' lies near the Austrian border and is a key economic and cultural hub in Győr-Moson-Sopron County. The numbering area encompasses the city itself, along with nearby towns and villages such as Fertőd, Kőszeg, and Bük, which are served by the same fixed-line exchange.
Dialing Formats
When calling a fixed-line number in Sopron from abroad, you must use the full international format: +36 99 XXX XXX (where X represents the subscriber number). For example, a local number might be dialed as +36 99 123 456. From within Hungary, callers outside the Sopron area dial 06 99 XXX XXX, replacing the leading '+' with the national trunk prefix '06'. Local calls within the same NDC area can often be made using only the seven-digit subscriber number, but this depends on the specific operator's dialing plan.
Numbering Structure
Hungarian geographic numbers, including those under the 99 prefix, consist of a total of eight digits when dialed nationally (excluding the trunk prefix). The NDC '99' is followed by a six-digit subscriber number, yielding the format 99 XXX XXX. This structure aligns with ITU-T E.164 recommendations, ensuring international interoperability.
Overlays and Regulatory Notes
Currently, there is no overlay code for the Sopron area; the 99 prefix remains the sole geographic code for this region. The National Media and Infocommunications Authority (NMHH) regulates the assignment of numbers, and fixed-line numbers are generally not portable to mobile networks. However, number portability within fixed-line services is available, allowing subscribers to retain their 99 numbers when switching between fixed-line operators.
Caller Instructions
For international callers, always replace the leading zero of the trunk prefix with the country code +36. For example, to call a Sopron number from the United States, dial 011 36 99 XXX XXX. From most European countries, dial 00 36 99 XXX XXX. Ensure you omit any leading '0' that might appear in local directories, as the international format requires only the country code and NDC.