tammiWhat is Tammi?
Tammi is an independent guide to telecom plans and services in Vietnam. Read how-to guides, compare plans side by side and test your connection. Tammi is not part of Viettel, VNPT, VinaPhone, MobiFone or FPT Telecom, and does not confirm registrations on their behalf.
The initial catalog covers selected mobile and home internet plans with clear public information. Inclusion is not a quality certification or a recommendation to buy.
Selecting and checking sources
We prioritize official product pages, change notices and support documents. If sources conflict, we check discontinuation or change notices against catalog pages. Each entry includes its source-check date; this does not mean prices update in real time.
A pricing page alone does not show that every subscriber can register. Eligibility restrictions, regional offers, upfront fees and starting prices are listed in the conditions. Where sources are unclear, we state what is unverified or leave the price out of budget filtering.
Comparing like with like
We retain the carrier's published price and billing period. Thirty days is not always a calendar month, and daily allowances are not a shared monthly data pool. Price filters use the published price for one period, excluding extra usage charges and installation fees.
Internet speeds in the table are carrier specifications. A Cloudflare test reflects your experience at that time and is affected by your device, Wi-Fi and network route. Tammi does not use a single test to name the fastest carrier.
Editorial approach and independence
Content is prepared with AI assistance and checked against the linked sources. We do not invent user ratings, paid rankings or market-share figures. Source links lead to providers; Tammi does not accept registrations or payments here.
The Gen Z Có AI archive is kept separately at /thu-vien/, with the author and publication date shown for each article.
Data when you use Tammi
Browsing and comparing plans does not require a phone number, installation address, OTP or account. Filters and selections run on this page and do not send registration requests to carriers.
The speed test only runs after you consent and press Start. Your browser transfers data to Cloudflare, which receives requests and results under its own policy. Tammi stores test history in your browser. Clearing this history does not delete data already received by Cloudflare.
Read about the test method and data · Cloudflare privacy policy.
If information differs from the source
Follow the latest official notices and the conditions shown for your number. You can leave feedback under related content on the Gen Z Có AI channel, including the Tammi page link and the source that needs correcting. Do not share personal information, OTPs, or contracts with unredacted details.