Table of Contents
This updated guide examines How to Check Which Service Viettel Is Using on the Phone and organizes the essential facts, background, and practical takeaways in clear American English.
Method 1: Use SMS:
This way is very simple, you just need to compose a TC message sent to 1228 to receive the list of service packages that are signed with Viettel network.
Soon, you will receive a message sent. If you have signed up for a service, a message will appear, followed by a syntax to instruct to cancel that service.


Method 2: Check at Viettel homepage:
To do this step, you will first need to create an account on Viettel's homepage. How to register is also very simple, you just need to click on Register and follow the instructions to complete.

Step 1:
Firstly, please login to Viettel homepage according to the link below:
http://vietteltelecom.vn/
Step 2:
At the home page interface, we click on the Utilities section and then click Prepaid Mobile .

Step 3:
Next, at the new interface, we will click on the Search for VAT service .

Step 4:
Enter the security code as required and then click Confirm .

Soon after, you will also receive a notification about whether to use the service or not.

Note to readers, we can call the operator to check the service again. Specifically, with Viettel subscribers , call 18008098 or 0989198198 ; with MobiFone subscription number , call 18001090 or 9090 ; with VinaPhone subscription number , call 9191 ; for Vietnamobile subscribers , call 789 or 0922789789 ; For Gmobile's subscribers , users need to call the switchboard 199 or 01998880199 to check and query the VAT services currently in use or request to cancel the service when there is no need to use.
The above are two ways to help you check whether your Viettel prepaid subscriber has registered the service or why the phone is charged for an unregistered value-added service. From there, you can further control the services on the phone and limit the loss of money for unknown reasons.
Refer to the following articles:
- How can security OTP be broken?
- Online banking account security methods
- Top 10 most dangerous malware types with bank accounts
I wish you all success!
FAQ
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Use the guidance as a practical starting point, confirm details that may have changed, and follow current product, safety, or security recommendations.
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