Area Code 73 – Novo Mesto/Krško
The phone area code for Novo Mesto/Krško is 73 (international format +38673). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 73
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Novo Mesto/Krško
Geographic Coverage and Administrative Jurisdiction
The +386 73 area code is a geographic National Destination Code (NDC) assigned to the southeastern region of Slovenia, primarily encompassing the towns of Novo Mesto and Krško. Novo Mesto, the largest city in the region, serves as the economic and cultural hub of the Dolenjska statistical region. Krško, located to the northeast, is notable for hosting the Krško Nuclear Power Plant, the only such facility in Slovenia. The area code also covers surrounding municipalities and settlements within the Posavje and Dolenjska regions, including Brežice, Sevnica, and Šentjernej. Administratively, these areas fall under the jurisdiction of the Municipality of Novo Mesto and the Municipality of Krško, among others.
Dialing Formats and Caller Instructions
For callers within Slovenia, the national trunk prefix '0' is used before the area code, so a local number is dialed as 07 3XX XX XX (where 'X' represents the subscriber's digits). Note that the '0' is part of the national dialing plan and is not included when dialing from abroad. For international callers, the full international format is +386 73 XX XX XX (or +386 73XXXXXX when written without spaces). The '73' is the NDC, and the subscriber number typically consists of six digits, making the total national significant number length nine digits (including the leading '0' for domestic calls).
When calling from a foreign country, you must replace the '+' with your country's international access code (e.g., '00' from most European countries, '011' from the US/Canada). For example, to call a Novo Mesto number from the United States, you would dial 011 386 73 123 456.
Overlay and Numbering Plan Considerations
Slovenia's numbering plan is regulated by the Agency for Communication Networks and Services of the Republic of Slovenia (AKOS). The 73 area code is a geographic code, and as of the latest updates, there are no overlay codes in this region; the 73 code serves exclusively the Novo Mesto/Krško area. However, with the ongoing migration toward IP-based telephony, some numbers with this prefix may be used by VoIP providers, but they remain geographically associated for routing and emergency services purposes. Callers should always verify the current dialing procedures with their service provider, as international dialing formats may vary slightly depending on the country of origin.