How to check your Vietnam eSIM phone number (Viettel
Knowing your Vietnam eSIM phone number comes in handy for apps like Grab, receiving SMS verification codes, or sharing with local contacts. However, it's important to understand that not all Vietnam eSIMs include a phone number: only Vinaphone plans (e.g., our Vinaphone 5GB/day) come with a real Vietnamese number that can receive incoming calls and SMS. Viettel and Mobifone (Skyfi) eSIMs are data-only and do not have a phone number. If you have a Vinaphone eSIM, here are three simple ways to find your number.
Why you need to check your Vietnam eSIM number
If you purchased a Vinaphone eSIM, a local Vietnamese phone number (+84) is assigned to your profile. You'll need it when registering for transportation apps like Grab, signing up for local bank or airline services, or receiving SMS verification codes. Unlike a physical SIM card, the number isn't printed anywhere – you must look it up through your device or the carrier.
For Viettel and Mobifone data-only eSIMs, no local number is provided. These plans are designed purely for internet access, so you won't need to check a number – simply use VoIP apps like WhatsApp, Zalo, or Skype for calls and messages. The methods below apply only to Vinaphone eSIMs; if you have a data-only plan, you can skip the number-checking steps.
Method 1: Check via phone settings (iOS & Android)
On an iPhone, go to Settings > Mobile Data (or Cellular) and tap the Vinaphone eSIM plan. Look for a field labelled 'My Number' – your 10-digit Vietnamese number should be displayed there. Some carriers also show the number under 'Carrier Label'. If the field is blank, it may populate after a few minutes once the eSIM registers on the network.
On Android, open Settings > About Phone > SIM Status > My Phone Number. Alternatively, navigate to Settings > Connections > SIM Card Manager and select the Vinaphone eSIM profile. If you see your number, note it down immediately. For data-only eSIMs (Viettel or Mobifone), the 'My Number' field will likely be blank, which is normal.
Method 2: Use a USSD code
For Vinaphone eSIMs, dial *111# from your phone's native dialer (not a VoIP app). Your phone number will appear on the screen instantly. This code is published by Vinaphone and works on both iOS and Android. A small tip: make sure you have a strong mobile signal before dialing – the code only works over the cellular network, not over Wi-Fi.
Data-only eSIMs from Viettel and Mobifone do not have phone numbers, so USSD codes like *110# (often used for Viettel) are for balance or account info, not for checking a phone number. If you try them on a data-only line, you may get an error or a balance check – but no number will appear. Stick to the settings method for data-only profiles if you're curious, but expect a blank result.
Method 3: Use the carrier’s official app
Vinaphone offers the 'MyVinaphone' app, available on both iOS and Android. After installing, log in using the eSIM's mobile data (an SMS OTP may be sent to the Vinaphone number itself). The home screen displays your phone number clearly. This app can also be used to manage other services, though note that tourist eSIMs cannot be topped up – to get more data, you'll need to purchase a new plan.
For Viettel and Mobifone data-only eSIMs, downloading 'My Viettel' or 'Mobifone App' may show an error or require a phone number that doesn't exist. These apps are designed for postpaid or prepaid accounts with voice services, so they aren't useful for data-only lines. Stick to the settings method if you still want to confirm your profile.
Troubleshooting: What if no number appears?
If your Vinaphone eSIM number doesn't show up immediately, wait 10 minutes and restart your phone. The carrier sometimes assigns the number asynchronously after the profile is installed. Also confirm the eSIM profile is correctly installed: on iPhone, go to Settings > General > About and check that 'Carrier Lock' says 'No SIM restrictions' and that you see the Vinaphone carrier name.
If you still can't find the number, contact the seller (simvietnam support) or the carrier's hotline: Viettel 198, Vinaphone 9191, Mobifone 9090 (these hotlines mostly speak Vietnamese; use Google Translate). For data-only eSIMs, lack of a number is not a fault – it's by design. No troubleshooting is needed; your eSIM works correctly for internet access.
Practical tips for using your Vietnam number
Once you have your Vinaphone number, store it in a note or as a contact before you start roaming. You'll need it for Grab registration, hotel check-ins, or any service that sends an SMS verification. Vietnam phone numbers are 10 digits long, starting with 03, 05, 07, 08, or 09. When giving the number to someone abroad, use the international format +84 (e.g., +84 3xx xxx xxx).
Remember that the eSIM number is valid only for the plan's duration – after it expires, the number is recycled. You cannot keep it for a future trip on a new eSIM, even if you buy from the same carrier. If you need a Vietnamese number again for a later visit, you'll get a new one with your next Vinaphone eSIM.
FAQ
How do I find my Vietnam eSIM phone number?
Only Vinaphone eSIMs include a phone number. To find it, check your phone settings (iOS: Settings > Mobile Data > tap eSIM plan > My Number; Android: Settings > About Phone > SIM Status > My Phone Number), dial *111# from your dialer, or open the MyVinaphone app. If you have a Viettel or Mobifone data-only eSIM, there is no number to find.
Is it necessary to know my Vietnam eSIM number?
It depends on your plan. If you have a Vinaphone eSIM, knowing the number is necessary for registering on Grab, receiving OTPs from banks or airlines, and for local contact. For data-only eSIMs (Viettel, Mobifone), no phone number is provided, so you don't need one – all communication goes through internet-based apps like WhatsApp or Zalo.
What if my phone doesn't show the number in settings?
For Vinaphone eSIMs, if the number field is blank, wait 10 minutes and restart your phone. The number may appear after the eSIM fully registers on the network. If it still doesn't show, try using the USSD code *111# or the MyVinaphone app. For data-only eSIMs, a blank number field is normal and expected.
Can I use my Vietnam eSIM number for banking SMS verification?
Yes, if you have a Vinaphone eSIM: you can receive SMS verification codes from Vietnamese banks and other services. Your Vinaphone number is a real local number, so OTPs work. For Viettel or Mobifone data-only eSIMs, you cannot receive SMS because they don't have a phone number – use an international bank or app-based authentication instead.
My Vietnam eSIM number didn't appear after activation – what to do?
First, confirm you have a Vinaphone eSIM (only these include a number). If yes, wait 10–15 minutes after activation, restart your phone, then check settings again. Try the USSD code *111#. If still no number, ensure the eSIM profile is installed correctly (check APN settings if needed). If the problem persists, contact support at simvietnam.telebox.vn or call Vinaphone hotline 9191 (Vietnamese only).