Turkey Phone Numbers: Format, Area Code & Validation Guide - phone-number-standards -

Frequently Asked Questions

The country code for Turkey is +90. This code is used to dial Turkish phone numbers from outside the country and is a key component of the E.164 international numbering standard.
Turkish phone numbers follow the E.164 standard and typically consist of +90 (country code), a 2-3 digit area code, and a 7-digit subscriber number. For example, a number might look like +90 212 345 6789.
The article provides a JavaScript function to validate Turkish phone numbers. This function checks for valid formats using regular expressions and handles both international (+90) and national (0) prefixes, formatting valid numbers to E.164.
The E.164 format (+90XXXXXXXXXXX) is recommended for international compatibility and simplified processing. It is the standard used by many communication APIs and services, ensuring consistent formatting and efficient routing.
Istanbul's area code is 212. This 3-digit code precedes the 7-digit subscriber number when dialing a landline number in Istanbul. Remember to include the country code (+90) for international calls.
Foreign visitors can use their mobile phones in Turkey for up to 120 days without registration. After this period, they must register their device with the authorities and link it to a Turkish SIM card.
You can check number portability by querying the BTK's (Information and Communication Technologies Authority) number portability database. This database provides information on the current and original operators of a given number and its portability status.
The national prefix used for calls within Turkey is 0. This prefix replaces the country code (+90) when dialing domestically.
Important emergency numbers in Turkey include 112 (universal emergency number and ambulance), 155 (police), 156 (gendarmerie), 110 (fire), and 177 (forest fire). Your application should prioritize these calls.
Turkish phone numbers are categorized as geographic, mobile, toll-free, premium, and call center numbers. Each type follows a distinct format and has a specific validation regex, as detailed in the article's table.
Check number portability before routing calls or sending SMS messages. This ensures accurate routing and billing, especially if the user has switched operators while keeping their original number.
The Information and Communication Technologies Authority (BTK) is the regulatory body in Turkey. Contact the BTK for information on data breach reporting requirements and procedures. The article highlights a significant breach in 2023 and underscores the importance of data security.
The official website of the Information and Communication Technologies Authority (BTK), btk.gov.tr, provides the latest updates and detailed guidelines on Turkish telecommunications regulations. Always consult this resource for the most accurate information.
The Information and Communication Technologies Authority (BTK) is the regulatory body overseeing Turkey's telecommunications sector. They establish and enforce regulations related to number formats, portability, emergency services, and other aspects of the industry.
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