Area Code 62 – Olten
The phone area code for Olten is 62 (international format +4162). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 62
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Olten
Geographic Coverage and Administrative Jurisdiction
The Swiss area code +41 62 is a geographic National Destination Code (NDC) assigned to the canton of Solothurn and parts of the cantons of Aargau and Basel-Landschaft. The primary city served is Olten, a major railway hub and economic center. Other significant towns include Aarau (the capital of Aargau), Baden (partially), Liestal (partially), and Solothurn (the cantonal capital). The code covers a contiguous region in the Swiss Midlands, extending from the Jura foothills to the Aare river valley.
Dialing Formats and Call Routing
Within Switzerland, calls to numbers in the 62 area code are dialed using the national trunk prefix 0 followed by the NDC and the local subscriber number. The complete national format is 0 62 XXX XX XX, where the subscriber number consists of seven digits. For international callers, the Swiss country code (+41) replaces the leading zero, resulting in the format +41 62 XXX XX XX. For example, a local number in Olten might be 062 345 67 89 when dialed domestically, or +41 62 345 67 89 from abroad.
Swiss numbering follows the ITU-T E.164 recommendation, and the 62 area code is part of the closed numbering plan, meaning that all digits must be dialed even for local calls. There are no overlay codes in this region; the 62 code is the sole geographic code for the area, simplifying call routing.
Caller Instructions
- Local callers within the 62 area must still dial the full national number (0 62 XXX XX XX) because the Swiss numbering plan does not allow abbreviated local dialing.
- Callers from other Swiss regions should dial the same national format, ensuring the leading zero is included.
- International callers should replace the leading zero with the +41 country code, omitting the zero. For instance, to call a number in Olten from abroad, dial +41 62 followed by the seven-digit subscriber number.
Regulatory and Technical Notes
The prefix is administered by the Swiss Federal Office of Communications (OFCOM). Subscriber numbers within the 62 area are generally assigned to fixed-line services, but number portability allows users to retain their numbers when switching to VoIP or mobile services. However, the geographic significance remains for emergency services and caller location identification. As with all Swiss geographic codes, the cost of calls to 62 numbers is determined by the caller's operator and may vary depending on the service type (fixed, mobile, or VoIP).