Address code verification and lookup is an important practice for standardizing and accurately using address information in Turkey. The Population and Citizenship Affairs Directorate (NVİ) implemented the Address Registration System (AKS) to ensure that citizens’ addresses are correct and up to date for all official procedures. Within this system, the address code is a unique 10-digit number that identifies a person’s residence or workplace.

Verifying and querying the address code is essential for many processes such as title deed transactions, utility subscriptions (electricity, water, gas), school registrations, banking procedures and numerous other official matters. In this article we explain the address code verification and lookup process step by step, where you can check it, and common problems you may encounter.

What Is an Address Code?

An address code is a 10-digit unique number assigned to each independent unit in Turkey. That means apartments in the same building each have different address codes. This code allows a person’s address to be quickly verified, recorded in government systems and prevents confusion between similar addresses.

• Length: 10 digits
• Coverage: Includes all provinces, districts, neighborhoods, streets, avenues, buildings and apartments in Turkey
• Use: Official procedures, subscriptions, registrations

Why the Address Code Matters

Using the address code brings many advantages for both public institutions and citizens:

Prevents Address Confusion

It stops mix-ups between neighborhoods, streets or buildings that have similar names.

Speeds Up Official Procedures

Transactions such as title deed transfers, school enrollment and health services are carried out quickly and accurately.

Ensures Accurate Records

Correct address information is entered into the Population and Citizenship Affairs Directorate database.

Facilitates E-Government Services

Addresses are automatically matched in all applications submitted via the e-Government portal.

How to Find Your Address Code

There are several ways to learn your address code.

1. Via E-Government (e-Devlet)

• Step 1: Log in to your e-Government account.
• Step 2: Type “Address Code Query” in the search box.
• Step 3: The system will display your current address and address code on the screen.

2. Population Directorates

• You can apply to the provincial/district population directorate with your ID card to learn your address code.

3. Local Mukhtariyats

• Your neighborhood mukhtar’s office can also help you find the address code for your residence.

Address Code Verification Process

Address code verification checks that a given code actually belongs to the stated address. This process is commonly used by banks, title deed offices and notaries.

• If the address code obtained from e-Government is entered into the institution’s system, the address is automatically verified.
• If the system returns an error, you should contact the population directorate to request an update.

Address Code Lookup Summary

The table below summarizes methods to query the address code and the documents required for each:

Where the Address Code Is Used

The address code appears in many everyday official procedures:

• Title deed transactions
• Water, electricity, natural gas subscriptions
• School registrations
• Military conscription records
• Bank procedures
• Health services

Losing or Misusing an Address Code

If an address code is entered incorrectly or someone else’s code is used, serious problems can arise:

• Incorrect ownership record in a title deed transfer
• Address mismatch in bank accounts
• Subscriptions registered under the wrong person

For these reasons, the address code must be verified before every transaction.

Example Address Code Format

Below is an example format illustrating how address codes correspond to address components.

Address Code for Utility Subscriptions

Address code has become mandatory for electricity, water and natural gas subscriptions. This prevents confusion between different apartments in the same building.

Common Errors During Address Code Verification

• Address not found: The system may return an error for outdated addresses.
• Incorrect code entered: If a code that does not belong to the person’s address is entered, the transaction will be canceled.
• Address record not updated: Newly moved addresses may not yet be registered in AKS.

Updating Your Address Code

Citizens who change their address must update the code for the new address. Steps include:

1. Apply to the population directorate
2. Submit a new address declaration
3. Have the code updated in the system

Address Code and Title Deed Transactions

Accuracy of the address code is critical during title deed transfers. If the wrong code is entered, ownership may be recorded for a different property. For this reason, title deed offices retrieve the address code directly from the system.

Which Institutions Use the Address Code and When?

Address Code Verification and Lookup Summary

Frequently Asked Questions (FAQ)

1. How can I find my address code?

You can easily find it through the “Address Code Query” service on e-Government.

2. Can a title deed transaction be completed without an address code?

No. Address code is mandatory and is automatically verified by the system.

3. What happens if I enter the wrong address code?

An incorrect address record will be created and the transaction will be invalid.

4. Do I need a new code after I move?

Yes. Each address has its own code. You must obtain the code for your new address.

5. Is an address code required for internet subscriptions?

Yes. Service providers generally do not process subscriptions without an address code.