In short
For Viettel, set the APN to v-internet and leave the username and password blank. Below are the mobile data settings for all 4 carriers in Vietnam: Viettel, VinaPhone, MobiFone and Vietnamobile. Tap a value to copy it, and open the MMS settings if picture messages fail.
Updated 1 October 2026 · SimVala editorial
4 carriers in Vietnam
Viettel APN
v-internet
Username and password: leave blank
Checked 2026-10-01
APN for mobile data
No username or password is needed.
APN for mobile data
Leave username and password empty.
We found no separate MMS settings for VinaPhone. Picture messages usually work with the APN above, or your phone sets them itself.
APN for mobile data
m-wap is the only APN you need, also for 4G and 5G. No username or password is needed.
We found no separate MMS settings for MobiFone. Picture messages usually work with the APN above, or your phone sets them itself.
APN for mobile data
The profile name is Vietnamobile. 3G and 4G settings are usually already on the SIM and phone.
We found no separate MMS settings for Vietnamobile. Picture messages usually work with the APN above, or your phone sets them itself.
SimVala is not affiliated with, endorsed by or sponsored by any carrier on this page. Logos belong to their owners and are shown only to help you find your carrier.
4
Carriers in Vietnam
1
From the carrier's own pages
1
With MMS settings
0
Need a username
The main internet APN for every carrier in one table. The cards above have the full settings, other APNs and the MMS values.
| Carrier | APN | Username / password | MMS | Network |
|---|---|---|---|---|
| Viettel | v-internet | blank | Listed | Own network |
| VinaPhone | m3-world | blank | Not listed | Own network |
| MobiFone | m-wap | blank | Not listed | Own network |
| Vietnamobile | internet | blank | Not listed | Own network |
All 4 carriers on this page run their own network. Each one has its own APN, so make sure you copy the settings for the carrier named on your SIM, not the one with the best coverage.
None of the carriers in Vietnam need a username or password. Leave both fields empty: typing one where none is needed can stop data from working.
Viettel lists separate settings for picture messages (MMS). If texts work but photos in messages do not, those are the values to check.
The carriers here use the mobile country code 452, the first three digits of every network code in Vietnam. Android usually fills in the MCC and MNC from the SIM, so you rarely need to type them.
Visiting Vietnam with your own SIM? Keep your home APN: roaming data still goes through your home carrier. You only need these settings with a local SIM bought in Vietnam. Or skip the SIM shop with a Vietnam eSIM, which sets its own APN.
iPhone
No Mobile Data Network option? Your carrier locks it, and the iPhone sets the APN for you.
Android
Made a mess of it? Reset to default in the same menu brings the original settings back.
Data and roaming on
Mobile data must be on, and airplane mode off. On a local SIM, data roaming can stay off.
The APN, letter for letter
For Viettel that is v-internet. One wrong dot or capital is enough to block data.
Username only if listed
No carrier here needs one. Clear the fields if an old value is still there.
Select it and restart
On Android, tap the entry so its dot is filled. Then restart the phone and open a website.
Calls and texts work, only data does not? That points to the APN, because calls and normal texts do not depend on it. If nothing works at all, the SIM itself may not be active yet: ask the shop or the carrier.
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Each carrier card names its own sources. Checked 2026-10-01.
The Viettel internet APN is v-internet, with the username and password left blank.
The VinaPhone internet APN is m3-world, with the username and password left blank.
The MobiFone internet APN is m-wap, with the username and password left blank.
The Vietnamobile internet APN is internet, with the username and password left blank.
None of the 4 carriers on this page need one. Leave the username and password fields blank.
Usually not. Your phone reads the APN from the SIM and sets it for you. You only need to add it by hand if mobile data does not work, often after moving a phone between networks or on an unlocked import.
Not if you use your own SIM: roaming uses your home carrier's APN. You only need the settings on this page if you buy a local SIM from a carrier in Vietnam.
No. At worst, mobile data or picture messages stop working until you fix it. On Android, Reset to default in the APN menu puts the carrier's own settings back.
A travel eSIM installs before you fly and usually sets its own APN. Pay in crypto, no ID, no email.