TurkeySMS
About Us
Who we are
Why TurkeySMS
Our advantages
Media Center
Press & media
Data Privacy
Privacy & security policy
How We Work
Our values and principles
Reseller Program
Join our reseller network
Bulk SMS
High-volume messaging
Turkey SMS
Domestic carrier-level SMS
Excel to SMS
Bulk send from Excel
OTP SMSNew
One-time password delivery
Inbound SMSNew
Receive SMS & auto-replies
E-Commerce SMS
Order & campaign notifications
E-Invoice SMS
Digital invoice notifications
WordPress Plugin
SMS integration for WordPress
WooCommerce
E-commerce SMS notifications
Make.comNew
1,000+ ready-made scenarios
ZapierNew
2,000+ app connections
n8nNew
Open-source automation
SMS API
REST API integration
SMS WebhookNew
Delivery & event notifications
Integration Hub
All integrations
Pricing
Contact Us
Get in touch
Knowledge Base
Guides and how-tos
Compliance AcademyNew
Legal SMS sending guide
Support Center
Submit a support request
Developers
API & documentation
Documentation
API reference & guides
Log inGet Started
TurkeySMS
Pricing
Log inGet Started
Operator Code

B389
What Is the SMS Code?

Everything you need to know about the operator code assigned to TurkeySMS by BTK.

  1. Home
  2. B389 SMS Code
KVKKİYSBTK
OFFICIAL BTK DECISION

B389 is the operator code assigned to TURKEYSMS BİLİŞİM VE İLETİŞİM HİZMETLERİ TİCARET LİMİTED ŞİRKETİ by the Information Technologies and Communication Authority on 12 April 2016 under Board Decision No. 2016/DK-YED/211.

IMPORTANT NOTICE — Regarding Messages with B389 Code

Dear users and members of the public,

The B389 code is the technical infrastructure provider code assigned to our company by BTK (Information Technologies and Communication Authority).

Our company operates solely as an 'Intermediary Service Provider' (Technology Infrastructure Provider). Accordingly, the content of messages sent through our system, the sending time, and the target audience lists (data) belong to our customers (businesses or institutions that subscribe to our service).

Our company has no access to or control over databases, phone number lists, or personal data contained in the messages sent through our system. Therefore, messages arriving with this code are not direct transmissions from our company, but transmissions from a third-party customer using our service.

Pursuant to the Personal Data Protection Law (KVKK), we wish to state that the content of messages and transmission responsibility belongs entirely to the sender using our service.

For complaints and reports regarding unwanted content:Report Content Violationor[email protected]
Auto-Appended

Automatically appended to the end of all SMS messages sent through the TURKEYSMS infrastructure by the system.

Traceability

Makes it identifiable which operator transmitted the message and which subscriber sent it.

BTK Requirement

All operators using alphanumeric CLI are required by BTK regulation to append their assigned code to SMS messages.

No Shared Pool

There is no shared number list or pool in our system. Blocking is done on a per-sender basis.

IF YOU WANT TO BLOCK COMMERCIAL SMS

If you want to block commercial SMS messages, you can tap the B389 code at the end of the message on your phone or use our SMS Opt-Out / REJECT page below.

SMS Opt-Out / REJECT RequestWhat Is an Opt-Out Link?

Frequently Asked Questions

BTK Authorized
Decision No: 2016/DK-YED/211
12 April 2016
Authorizations & Documents →
BTK
Information and Communication Technologies Authority
İYS
Message Management System
KVKK
Personal Data Protection
USOM / SOME
National Cyber Incident Response Center
TurkeySMS

TURKEYSMS BİLİŞİM VE İLETİŞİM HİZMETLERİ TİCARET LİMİTED ŞİRKETİ
Operator authorized by the Information and Communication Technologies Authority of Türkiye (BTK).

Services

Bulk SMSTurkey SMSOTP SMSSMS APIInbound SMSE-Commerce SMSIndustry SolutionsTest Our Service

Company

BlogNewsAuthorizations & DocumentsBank AccountsBrand GuideCase StudiesRequest a Callback

Support

Help CenterContact UsDeveloperIntegration HubSMS WebhookWordPress PluginSMS Opt-Out / RETAccount Types & Documents

Legal

Trust & Compliance CenterCompliance AcademyReport Content Abuse
SSL Secure Connection
Operator Authorized by BTK

© 2026 TurkeySMS. All rights reserved.
Service Status
SitemapKVKKTrust & Compliance Center