Introduction
A Turkish phone number carries a leading 0 when it is dialed domestically, and +90 takes over from that 0 when the number is written for callers abroad. Landline numbers pair a 3-digit area code with a 7-digit local number, while mobile numbers are 10 digits and always start with 5.
Below you'll find how Turkish phone numbers are structured, which digits mark a mobile number, which area codes serve Istanbul, Ankara and Izmir, and how to dial in from the US. The later sections cover what getting a Turkish number as a foreign business involves and how to time calls across the time difference.
- Turkey's country code is +90. Drop the domestic 0 in international format, so 0212 XXX XX XX becomes +90 212 XXX XX XX.
- Mobile numbers are 10 digits and start with 5, written 5XX XXX XX XX.
- Istanbul has two area codes: 212 for its European side and 216 for its Asian side.
- Turkcell, Vodafone Turkey and Turk Telekom are the country's three major mobile carriers, together holding the large majority of subscriptions.
- Turkey has used a single time zone (UTC+3) year-round since it abolished seasonal daylight saving in 2016.
Turkey Phone Number Format (+90)
A Turkish landline number pairs a 3-digit area code with a 7-digit local number. Domestically it is dialed with a leading 0, as in Istanbul's 0212 XXX XX XX. That leading 0 only applies within Turkey: for an international audience, replace it with +90, so 0212 XXX XX XX becomes +90 212 XXX XX XX.
| Number type | Starts with | Length (without leading 0) |
|---|---|---|
| Mobile | 5 (5XX) | 10 digits |
| Landline | 3-digit area code | 10 digits total |
Turkish Mobile Numbers
A Turkish mobile number is 10 digits and always starts with 5, written 5XX XXX XX XX. In international format the leading 0 is dropped, so a mobile written domestically as 0532 XXX XX XX becomes +90 532 XXX XX XX.
Turkcell, Vodafone Turkey and Turk Telekom (marketed as TT Mobil) are Turkey's three major mobile network operators, and together they hold the large majority of the country's mobile subscriptions. The prefix itself does not name a carrier the way it does in some countries; blocks within the 5XX range are assigned to each operator by the regulator.
Landline Area Codes: Istanbul's Two Sides
Istanbul is split by the Bosphorus strait, and its phone system follows the same split: the European side uses area code 212 and the Asian side uses 216. A business with offices on both sides of the city genuinely needs two different area codes, not just two different numbers.
| City | Area code (dialed in Turkey) | Pattern |
|---|---|---|
| Istanbul (European side) | 0212 | 0212 XXX XX XX |
| Istanbul (Asian side) | 0216 | 0216 XXX XX XX |
| Ankara | 0312 | 0312 XXX XX XX |
| Izmir | 0232 | 0232 XXX XX XX |
Turkish Phone Number Examples
These samples keep the subscriber digits as X, so none of them points to a real line. Put in real digits only when the owner of the number has given it to you.
| Example | Dialed in Turkey | International format |
|---|---|---|
| Istanbul office (European side) | 0212 XXX XX XX | +90 212 XXX XX XX |
| Istanbul office (Asian side) | 0216 XXX XX XX | +90 216 XXX XX XX |
| Ankara office | 0312 XXX XX XX | +90 312 XXX XX XX |
| Mobile | 0532 XXX XX XX | +90 532 XXX XX XX |
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How to Dial a Turkey Phone Number From the US
Start with 011, the code for leaving the North American Numbering Plan, add 90, and finish with the Turkish number minus its leading 0. An Istanbul office line on the European side becomes 011 90 212 XXX XX XX, and a mobile number becomes 011 90 532 XXX XX XX. Mobile users can press + at the start and skip the 011.
The mistake to watch for is keeping the 0, as in 011 90 0212, which leaves the domestic trunk prefix where it no longer belongs. For exit codes from other countries and more dialing detail, see our Turkey country code guide.
Getting a Turkish Phone Number as a Foreign Business
Turkey's telecom regulator, the Information and Communication Technologies Authority (BTK), requires phones used in the country to be registered, and a foreign-registered device generally has a grace period before it needs registering through the local system. Combined with local ID requirements at the carrier level, this makes getting a Turkish SIM or number a process best handled in person or through a local partner rather than fully remotely.
Businesses that need a presence reachable from Turkey typically work through a licensed local partner or telecom reseller that can complete registration and paperwork on their behalf. Requirements change, so confirm current rules with a provider or partner in Turkey before committing to a specific option.
New to numbers that live in the cloud instead of on a SIM? Our virtual phone number explainer covers the basics, and our Japan numbering guide walks through another market with city area codes.
Time Zone and Call Timing
Turkey abolished seasonal daylight saving in 2016 and has used Turkey Time (TRT), UTC+3, year-round ever since. That means the gap with the US only changes when US clocks do, in March and November.
- US Eastern Time: Turkey is 7 hours ahead during US daylight saving time and 8 hours ahead during US standard time.
- US Pacific Time: Turkey is 10 hours ahead during US daylight saving time and 11 hours ahead during US standard time.
In practice, a late-afternoon call from the US lands in the evening in Turkey. A 2 p.m. call from New York in summer reaches Istanbul around 9 p.m. Our best time to call Turkey page suggests calling windows.
Conclusion
Turkish phone numbers follow a consistent logic. A 0 opens every domestic number and turns into +90 abroad, landlines pair a 3-digit area code with a 7-digit local number, and mobile numbers total 10 digits starting with 5. With that pattern in mind, you can format a number correctly and avoid the extra 0 that trips up international calls.
US teams with customers or partners in Turkey can make those calls from a Ringflow business line, answering and dialing from mobile and desktop apps. You can pick a local number in a US area code or a toll-free number for American callers, move your current number over through number porting, and test it with a free trial.
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Pick a number in a US area code or a toll-free line on Ringflow, bring your current number over with porting, and try the apps free before you commit.
FAQ
A landline number pairs a 3-digit area code with a 7-digit local number, written with a leading 0 domestically, such as 0212 XXX XX XX in Istanbul. Mobile numbers are 10 digits and always start with 5.
It is 10 digits starting with 5, written 5XX XXX XX XX domestically with a leading 0 (0532 XXX XX XX). In international format the 0 is dropped, giving +90 532 XXX XX XX.
Drop the leading 0 and put +90 in front. Istanbul's 0212 XXX XX XX becomes +90 212 XXX XX XX, and a mobile 0532 XXX XX XX becomes +90 532 XXX XX XX.
Istanbul is split by the Bosphorus strait. Its European side uses area code 212 and its Asian side uses 216, so the correct code depends on which side of the city the number is on.
Dial 011, then 90, then the Turkish number with its leading 0 removed. An Istanbul landline on the European side becomes 011 90 212 XXX XX XX. From a mobile phone you can dial + instead of 011.
It generally needs to be done in person or through a local partner. Turkey's regulator (BTK) requires phone and SIM registration tied to local ID, so most foreign businesses work through a licensed local partner or reseller rather than applying remotely.
Turkey has used a single time zone, Turkey Time (UTC+3), year-round since it abolished seasonal daylight saving in 2016.
A safe sample keeps the subscriber digits as placeholders, such as 0212 XXX XX XX for an Istanbul landline or 0532 XXX XX XX for a mobile number. In international format those become +90 212 XXX XX XX and +90 532 XXX XX XX.
