Area Code 43 – Martin
The phone area code for Martin is 43 (international format +42143). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 43
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Martin
Geographic Coverage and Administrative Context
The +421 43 area code is a geographic National Destination Code (NDC) assigned to the region of Martin, a principal city in the Žilina Region of northern Slovakia. This code covers Martin and its surrounding administrative districts, including Turčianske Teplice, Vrútky, and the broader Turiec Basin. The area is known for its industrial heritage, particularly engineering and paper production, and serves as a regional economic hub. The jurisdiction falls under the Slovak Telecommunication Office (Úrad pre reguláciu elektronických komunikácií a poštových služieb), which oversees the national numbering plan in accordance with ITU-T E.164 standards.
Dialing Formats and Caller Instructions
When calling a fixed-line subscriber in the Martin area from abroad, the international format is: +421 43 XXX XXXX, where the leading '0' of the national prefix is omitted. For example, a local number might be dialed as +421 43 123 4567. Within Slovakia, callers must use the national trunk prefix '0' followed by the area code and subscriber number: 043 XXX XXXX. For local calls within the same NDC, the area code may be omitted, allowing direct dialing of the seven-digit subscriber number. However, due to the implementation of number portability, it is advisable to always include the area code when dialing from mobile phones or VoIP services to ensure proper routing.
Overlay and Numbering Plan Considerations
As of the current numbering plan, no overlay code has been introduced for the Martin region; the 43 code remains the sole geographic NDC for this area. Subscriber numbers within this code are seven digits long, and the total length of a national significant number (NSN) is nine digits (including the leading '0' for national dialing). The code is exclusively allocated to fixed-line PSTN services, though some VoIP providers may offer numbers with this geographic code, subject to regulatory approval. Callers should note that charges for calls to this code are based on the caller's own tariff plan, and international rates vary by provider.
Practical Examples
- International call from the USA to Martin: Dial 011 421 43 123 4567.
- National call from Bratislava to Martin: Dial 043 123 4567.
- Local call within Martin: Dial 123 4567 (if using a fixed line in the same exchange).
For businesses and individuals, understanding these dialing procedures ensures seamless connectivity with the Martin region. Always verify the current numbering plan with your service provider, as regulatory changes may occur.