Area Code 256 – Aydin
The phone area code for Aydin is 256 (international format +90256). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Aydin
Overview of Area Code 256 (Türkiye)
Area code 256 is the National Destination Code (NDC) assigned to the province of Aydın in the Aegean region of Türkiye. It is a geographic code allocated under the Turkish numbering plan, which follows ITU-T E.164 recommendations. The code covers the administrative boundaries of Aydın Province, including its central district and all connected sub-districts. Major cities and towns served by this code include Aydın city center, Nazilli, Söke, Kuşadası, Didim, Çine, and Karacasu, among others.
When dialing a fixed-line number within Aydın from another province in Türkiye, callers must use the national trunk prefix 0, followed by the area code 256 and the 7-digit subscriber number. For example, to call a number in Aydın from Istanbul, you would dial: 0 256 XXX XX XX. When calling from abroad, the international access code (typically 00 or +) is used, followed by the country code 90, the area code 256 (without the leading zero), and the subscriber number: +90 256 XXX XX XX.
Local calls within the same area code (i.e., within Aydın Province) may be dialed using only the 7-digit subscriber number, depending on the operator's dialing plan. However, for clarity and to avoid misdialing, it is recommended to always include the area code when dialing from mobile phones or from other regions.
As of the latest numbering plan updates, there are no overlay codes in Aydın; the 256 code is exclusive to the province. The subscriber numbers are 7 digits long, and the total length of a national significant number (NSN) is 10 digits (including the leading 0 for domestic calls).
For international callers, it is important to note that Turkish fixed-line numbers are geographic and may be subject to time zone differences (Turkey is in the UTC+3 time zone year-round). Additionally, some businesses may use VoIP services that present a 256 number, but the geographic nature of the code remains tied to the Aydın region for regulatory and emergency services purposes.
When dialing from a mobile phone within Turkey, it is standard practice to include the area code even for local calls, as mobile numbers are non-geographic and require full national numbering. This ensures proper routing through the PSTN or mobile network.
In summary, area code 256 is a vital part of Türkiye's geographic numbering system, serving the Aydın Province with a clear and structured dialing format for both domestic and international callers.