While using Viettel, Mobifone, and Vinaphone services, you might encounter situations requiring network guidance. Instead of visiting physical branches, you can directly call the network's hotline to receive support around the clock. Here is a compilation of hotline numbers for Viettel, Mobifone, and Vinaphone, providing you with essential information for convenient use.

VIETTEL NETWORK HOTLINES

1. Telecommunications services assistance hotline
- Hotline 197: Free of charge
The IVR channel updates the most captivating promotions, services, and VAT information that attract a large customer base.
- Hotline 18008098 or 198: 100đ/minute
Guidance, reporting issues, and assisting customers using mobile services and other related products.
The main hotlines, 197 and 198, are Viettel's 24/7 customer care hubs. Customers can reach out at any time of the day for assistance.
2. Enterprise Customer Support Hotline
- Hotline numbers: 1900.8098/1800.8000 (200 VNĐ/minute (calling from Viettel's internal network) and 1000 VNĐ/minute (calling from other networks).
Branch 1: Information and advice on services such as White Channel, Metrowan, OfficeWan, Internet Leasedline, and Trunk for enterprise customers.
Branch 2: Information and consultation for businesses on solution services, software, integrated telecommunications, and information technology systems provided by Viettel such as Vtax, Viettel – CA, V-Tracking, SMAS, ShopOne, and more.
3. Hotline for Specialized Services Support
- Hotline 1900.8099 (200 VNĐ/minute (calls from Viettel subscribers), 1,000 VNĐ/minute (calls from other networks))
+ Providing information and advice on E-commerce services such as BankPlus, Viettel's online payment gateway.
+ Guide and assist customers in registering for BankPlus services at home.
- Hotline 1222 (550đ/minute for on-network calls)
Information about music gift services. Not available for calls from outside the network.
- Hotline 1900.8062 (500 VNĐ/minute (calling from Viettel subscribers), 1,000 VNĐ/minute (calling from other networks))
Provide information and advice on issues related to agriculture, crops, livestock, cultivation techniques, weather information, and disease warnings.
4. General Service Support Hotline
- Hotline 1900.8198 (200 VNĐ/minute (calling from Viettel subscribers), 1,000 VNĐ/minute (calling from other networks))
+ Branch 1: Consultation and support for services such as Mobile, Dcom, Homephone.
+ Branch 2: Consultation and support for ADSL, PSTN, FTTH, and Television services.
- Hotline 1800.8198 (Free for all domestic and international calls)
+ Branch 1: Automated system providing information about all Viettel products/services.
+ Branch 2: Customers call to report issues with Mobile, Dcom, Homephone services.
+ Branch 3: Customers call to report issues with ADSL, PSTN, FTTH, and Television services (including NextTV and cable TV).
- Hotline Northern Region 0989.198.198, Hotline Southern Region 0983.198.198 (charges apply as for regular calls)
+ Information about all Viettel network services.
+ Information on the warranty for phone devices provided by Viettel.
- Hotline 1789: Supports Viettel agents and sales points.
5. Telephone Purchase Support Hotline
- Hotline: 04/08.62.555.888 (Free of charge for calls from Viettel subscribers)
Supports and guides customers in completing home network procedures for the following services: television service (NextTV), internet (ADSL, FTTH, D-com 3G, Leasedline), fixed-line telephone service (PSTN, HomePhone), BankPlus, postpaid mobile, Sumosim, services for enterprises (Trunk, Office-Wan, White Channel, 1800xxxx services).
Supports and guides customers through procedures that arise while using Viettel services such as changing ownership, updating information, relocating services, and upgrading connections. (Applicable to Leasedline, Trunk, Office-Wan, White Channel, 1800xxxx services for businesses).
6. Other Support Hotline
- Hotline 18008098 (Completely free of charge)
Answers inquiries about mobile services, Dcom, and HomePhone.
- Hotline 18008119 (Free of charge)
Addresses fixed broadband services including: ADSL, FTTH, Fixed-line telephone, and television services.
- Hotline 9198 (Free of charge)
Receives reports of spam messages.
- Support via website http://[email protected]: Customer consultation and support via email.
MOBIFONE NETWORK HOTLINES

1. Mobifone Customer Care Hotline 9090
(Call charges: Only 200đ/minute for prepaid subscribers and 100% free for postpaid subscribers.)
This is the hotline dedicated to addressing customer inquiries and complaints regarding all matters related to charges, service packages, network activation, accounts, subscribers, and registration for Mobifone's 3G and 4G services.
The hotline operates 24/7, every day of the week, and only accepts calls from Mobifone's internal network subscribers.
2. Automated Response Hotline 18001090
(free of charge for all subscribers)
This is the customer care hotline through an automated response system, dedicated to resolving customer inquiries and complaints in areas related to mobile services.
The hotline operates 24/7 and only accepts calls from Mobifone's internal network subscribers.
3. Hotline 9393 for international callers
This is the dedicated hotline for support, advice, and customer care for international users of Mobifone services in Vietnam.
The hotline operates 24/7 and only accepts calls from Mobifone network subscribers.
4. Regional Hotlines for Mobifone
In case you cannot reach any Mobifone hotline, please call the following HOTLINE numbers:
- Mobifone Northern Region Hotline: 0904.144.144.
- Mobifone Central Region Hotline: 0905.144.144.
- Mobifone Southern Region Hotline: 0908.144.144.
- Mobifone Can Tho Hotline: 0939.144.144.
VINAPHONE NETWORK HOTLINES

1. Domestic Customer Consultation Service
Hotline 9191(The call charge for contacting support hotline 9191 is 200 VND/minute (including VAT) using the 1+1 charging method. Postpaid Vinaphone subscribers are completely exempt from charges.)2. International Customer Consultation Service
Hotline 9192(The call charge for contacting the international customer service hotline 9192 is 200 VND/minute (including VAT) for prepaid subscribers. Postpaid VinaPhone subscribers are exempt from call charges.)This is the INTERNATIONAL CUSTOMER CARE HOTLINE with support in 4 languages: English, Chinese, Korean, and Japanese, aimed at advising and addressing inquiries about VinaPhone products and services.
3. Interactive Answering Service 18001091
The hotline number 18001091 operates 24/7, free of charge for Vinaphone and VNPT subscribers. The automated response system and human support are in place to assist with direct sales channels, emergency cut-off requests, and resolution of complaints during the use of Vinaphone services. In addition to regular services, subscribers can also receive advice and guidance on commercial procedures (new network activation, SIM card replacement, service conversion, package registration, subscriber information changes, ownership transfer, temporary suspension, and resumption of subscriber information).
4. Hotline – Vinaphone Hotline
Providing the latest information and addressing customer inquiries about services, internet network quality, service quality, customer complaints resolution, sales agent support, and Vinaphone's mobile sales team.
Hotline Numbers:
- Northern Region – 0912481111
- Southern Region – 0918681111
- Central Region – 0914181111
Here are all the hotline numbers for Viettel, Mobifone, Vinaphone. Feel free to save them for future use. Best of luck!