Vietnam 20GB 30 days
Viettel Mobile / Vinaphone / MobiFone
Exits in Hong Kong · 5G
- Data
- 20GB
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
- 5G ready
- Hotspot
- Top-up ready
Validity starts on first connection at the destination
from$22.90$21.75
Viettel and travel eSIM in Vietnam
Viettel is one of the networks your eSIM may use in Vietnam. Here is who actually decides which network you get, and what to do with that.
Author: Bob Kanokphon Thongdee · Co-founderReviewed by: Porsch Kunnipat SiramanakulPublished: October 12, 2026Last updated: October 12, 2026
Quick answer
- 85 of the 100 Vietnam plans we sell name Viettel as a reachable network, at 4G and 5G.
- Viettel runs LTE on B8, B3 and 5G on n28, n41; your phone needs at least one of them.
- Travel plans connect by roaming, so no plan can promise one specific network.
Viettel in brief
Viettel is state-owned, run under Vietnam's Ministry of National Defence, and Wikipedia describes it as the operator with the largest market share in Vietnam. It has already discontinued its 3G network.
We are not a reseller for this operator and we have not run our own field speed tests. The band and network details below come from the sources listed at the end of the page.
Viettel's bands and technology
| Item | Viettel |
|---|---|
| LTE (4G) | B8, B3 |
| 5G NR | n28, n41 |
| 5G launched | Live |
| 3G | Shut down |
| Network code (MCC-MNC) | 452-04 |
Checked against the sources on 2026-10-12. Only the bands a source confirmed are listed; the network may run others too.
An eSIM can only use Viettel if your phone supports at least one band in this table. Before you fly, open your model's spec page on the maker's site and compare its LTE and 5G band lists.
The plans on our shelf that name Viettel
From the supplier record behind each package, 85 of the 100 plans we currently sell for Vietnam declare Viettel as a network the profile can reach, at 4G and 5G. The figure comes from the same catalogue that prices the plan pages, and it moves when the supplier revises the record.
A plan naming Viettel means the network sits in the list the profile may choose from. It does not mean your handset will stay on it. The priority order is the supplier's, and the signal where you stand decides.
Viettel beside the other networks in Vietnam
| Network | LTE bands | 5G bands |
|---|---|---|
| Viettel | B8, B3 | n28, n41 |
| MobiFone | B3, B8 | Not verified |
A band shared across networks is one a single phone can use on all of them.
Why plans do not name a fixed network
Nearly every travel eSIM is a roaming product: the profile picks a network by an order the supplier sets, not by the buyer. If Viettel is weak where you are, try selecting MobiFone or Vinaphone manually in the network settings, and keep data roaming on for the eSIM profile.
FAQ
Will my eSIM definitely connect to Viettel?+
85 of our plans name Viettel as reachable, but that is not a guarantee. Travel plans run over roaming agreements, so the network depends on the supplier behind the plan, your device and where you are.
Which bands does my phone need for Viettel?+
At least one of these, LTE: B8, B3; 5G: n28, n41. Your phone's band list is on the maker's spec page for your model, under "Cellular" or "Network".
Does Viettel run 5G, and will my plan get it?+
Yes. Viettel has run commercial 5G, on n28, n41. A travel plan only gets it when the plan permits 5G, your phone supports one of those bands, and you are inside 5G coverage. Miss any one and you fall back to 4G.
How do I see which network I am on?+
Check the carrier name at the top of the screen, or open the mobile-network settings and look at the operator list. If signal is poor, try selecting a network manually instead of automatic, but only one your plan actually supports.
Sources
- Developing Telecoms: Vietnam auctions 900MHz spectrum following 2G shutdown — Developing Telecoms, October 11, 2026
- Wikipedia: Viettel Mobile — Wikipedia, October 11, 2026
- operator site (search result) — Viettel, October 12, 2026
- Mobile network codes in ITU region 4xx (Asia) — Wikipedia, October 12, 2026
- List of 5G NR networks — Wikipedia, October 12, 2026
About the author
Bob Kanokphon Thongdee
- Co-founder of eSIMonline.asia
- More than 7 years in online marketing
- Founder of Cojourney Visa and Cojourney Travel
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