How to Identify the Network of a Contact in Your Phonebook?
1. Benefits of Checking Which Network a Phone Number Belongs To
Plan Usage Based on Suitable Network Promotions
Differentiate between off-network and on-network subscribers.
2. How to check the carrier of any phone number
Quick Guide
Launch the Vietnam Telecom app. If not installed, refer to the links below:
- Open Vietnam Telecom -> select Retain Number Transfer Lookup -> enter the phone number -> choose CHECK.
Step 1: Access the Vietnam Telecom app.

Step 2: Next, select Retain Number Transfer Lookup.

Step 3: Enter the phone number you want to check into the Enter Phone Number field and choose CHECK.

Subscriber information will appear including: Phone number, original network, status (transferred or not), and the network it transferred to.

Wishing you success!
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See more:
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