How to Use a Foreign Phone in Türkiye (2026): 120-Day Rule & IMEI Registration

If you bring a phone into Türkiye from abroad and start using it with a Turkish line, sooner or later you will get a message saying your phone is not registered and will be blocked in 120 days. This rule catches a lot of people off guard, because nobody explains clearly how the 120 days actually work, what happens when you switch to an eSIM, or what permanent registration really costs.

In this guide we walk through the IMEI rule from start to finish, with up-to-date 2026 figures: how the 120-day rule works, how switching from a physical SIM to an eSIM extends your time, what happens when the calendar year changes, and how much you pay and where you apply for permanent registration.

What Is the 120-Day Rule?

When you insert a Turkish line into a phone that was brought from abroad and was never sold in Türkiye, the BTK (Information and Communication Technologies Authority) system detects it automatically and lets you use it unregistered for 120 days within a calendar year. During this period your operator warns you in stages rather than all at once. You usually receive a text when there are 120, 90, 60, 30 and finally 7 days left, each saying your phone is unregistered and your line will be closed after a certain number of days. So you do not need to track the deadline yourself, because the operator keeps reminding you.

If your phone supports eSIM or has a second SIM slot, it carries two separate IMEI numbers. A physical SIM and an eSIM use different ones, so when you move to the second slot or the eSIM, the system treats it as a separate record and gives you another 120 days. In other words, by using the physical SIM and then the eSIM in turn, you can use the same phone unregistered for up to 240 days within one calendar year.

A Real Example: How the Time Stretches Without a Gap

The most important detail of this rule is that the 120+120 day allowance starts again every calendar year. Depending on when you bring the phone in and when you switch SIM type, usage can continue almost without interruption. Here is an example timeline:

Period	What happens
Late April	The phone enters Türkiye from abroad and a Vodafone line is inserted as a physical SIM
May-August	Using the physical SIM, the first 120-day period
Late August	As day 120 approaches, a warning message arrives, and the line is converted to an eSIM at a Vodafone store
September-December	The same line, now as an eSIM, the second 120-day period
New Year	A short outage can occur as the calendar year changes, sometimes a few days, sometimes up to the first week of January
January-April	The new year's 120-day allowance begins, and the eSIM continues to be used
May	A visit to the store to go back to a physical SIM, and the cycle starts over

This is not a trick. It is simply the same phone's two separate IMEI numbers being used with their own time periods. This example is based on one user's real experience, and the short outage at New Year comes from the time the system needs to recognize the new year and reopen the line. Dates can vary from person to person, so the safest approach is to rely on the text message warnings from your operator.

What Happens After 240 Days?

When the 120-day allowances of both the physical SIM and the eSIM are used up within a calendar year, the phone's network connection (calls and SMS) is closed. The phone does not become completely dead. If you have a data eSIM plan that is independent of your Turkish number, or you connect to Wi-Fi, you can keep using the phone, because this works separately from the network registration. In short, you cannot make calls, but you can stay online.

Another method some people choose is to put the blocked phone's line into an old spare phone and share internet from it as a hotspot. It works, but in practice you end up carrying two phones, keeping one charged and managing the connection between them, which is a bit of a hassle for daily use.

The Permanent Solution: How to Register Your IMEI

If you want to go beyond the 240-day period and use your phone in Türkiye permanently, the only way is to register your IMEI. The process works like this:

1. Find your phone's IMEI number (dial *#06# to see it on screen).
2. Find the "IMEI Registration" service on e-Devlet and fill in the application form. Your passport details must match exactly what you enter, otherwise the application can be rejected.
3. Pay the 2026 registration fee of 54,258 TL at a bank branch or tax office. The fee cannot be paid directly through e-Devlet.
4. After payment, BTK registers your device and your line is reopened.

Once the registration is done, the phone can be used permanently in Türkiye, and you no longer need to track any deadlines when the year changes.

Keep the Concepts Apart

Four separate concepts are often mixed up on this topic. Knowing which is which helps you plan your time correctly and avoid false expectations.

Concept	What it means
120-day unregistered use	The free period given when a Turkish line is inserted into an unregistered phone. The period is tracked through the device's IMEI number.
Dual SIM / dual IMEI	Phones with an eSIM or a second SIM slot carry two separate IMEI numbers. This is why the physical SIM and the eSIM can receive separate periods.
IMEI registration	The paid, permanent registration. Once you pay, the phone can be used in Türkiye with no time limit.
Device registration with a passport	The registration application is made with your passport details. How many devices a single passport can register or receive time for may change as the practice evolves.

That is why switching from a physical SIM to an eSIM on the same phone is not the same thing as trying to gain time on different phones with the same passport. The first relies on the device's own two IMEI numbers. In the second, how the system treats actions made with the same passport details can vary in practice, and this route may lead to unexpected restrictions. Before planning the second approach, we recommend getting current information from your operator or from BTK.

The information in this guide is valid as of October 2026. Fees and procedural details can change, so check the figures once more on e-Devlet before you register.

Frequently Asked Questions

❤️ Thanks for Reading

People often buy a phone abroad because it is cheaper there, or because the model has not reached Türkiye yet, and then running into this rule afterwards can be frustrating. We hope this guide helps you understand the rule clearly, so you can move forward without wondering when your 120 days will end.

Safe travels,
The Maxesimo Team