Unitel Top-Up & Balance Check for Your Laos eSIM
Published Updated
The short answer: dial *122# on the Unitel line to see your balance. To add credit to a regular Unitel line with a scratch card, dial *121*PIN#. For more data on a Laos eSIM from us, buy another plan.
Check your balance: dial *122#
Our Laos plan pages list *122# as the remaining-balance check, and our Laos USSD cheat sheet (updated 2 October 2026) marks it the best-confirmed Unitel code. Dial it like a call. A message shows your balance. If your phone does not auto-configure data, the APN is unitel3g.
Top up a Unitel line with a voucher
On a regular Unitel line, buy a scratch card at a shop or kiosk and dial *121*PIN#, replacing PIN with the card code. Our cheat sheet also notes that some local sources report *123*PIN#. Keep *123*CODE# in mind for something else: it is the current format for buying a data package, such as *123*10K3#, while the older *209# menu still appears on some SIMs.
More data on the eSIM from Internet in Laos
Our eSIM is a data-only line: no phone number, calls or SMS, because Lao rules require in-person registration for a number. For more data, buy a new plan from us; it starts a fresh allowance. When the allowance ends, data stops; it does not slow down.
You do not need to register again
An eSIM from us is issued under your order. The *1021# registration check and the passport process in our Unitel registration guide apply to physical SIMs and numbered lines you buy locally.
Running low with days left on your trip?
See our Laos eSIM plans, from 10 GB for 10 days ($6.90) to 30 GB for 30 days ($9.90), up to 60 GB for 30 days. For a longer stay, our long-stay eSIM guide compares the options. Still stuck? Contact support with your order number.
Frequently asked questions
How do I check my Unitel balance? +
Dial *122# from the Unitel line. Our catalog lists it as the remaining-balance check for the Laos plans, and our USSD cheat sheet marks it the best-confirmed Unitel code.
How do I top up a Unitel line with a voucher? +
Dial *121*PIN# with the scratch-card code in place of PIN. Some local sources report *123*PIN# as an alternative.
How do I get more data on the eSIM I bought from Internet in Laos? +
Buy another Laos plan from us. Each plan starts a fresh data allowance, and when an allowance ends the data stops rather than slowing down.
Do I need to register again to top up? +
Not for an eSIM bought from us: it is data-only and issued under your order. The *1021# registration check and passport KYC apply to physical SIMs and numbered lines bought locally.
What if *122# does not return my balance? +
Check you are dialling from the Unitel eSIM line, not your home SIM, that the eSIM is on and set for mobile data, and that you are in Unitel coverage. If it still fails, contact us with your order number.
How do I buy a Unitel data package by USSD? +
The current Unitel package family is *123*CODE#, for example *123*10K3#. The older menu *209# still appears on some SIMs. Package codes and prices change often, so read the on-screen price before you confirm.
Get connected for your trip
Laos
Laos · 7 days · 10GB
10GB
- 10GB high-speed data
- Automatic activation
Automatic. Data works the moment the eSIM connects to Unitel. Nothing to dial, nothing to switch on.
QR emailed within minutes · Stripe secure checkout · No account needed
10GB
- 10GB high-speed data
- Automatic activation
Automatic. Data works the moment the eSIM connects to Unitel. Nothing to dial, nothing to switch on.
QR emailed within minutes · Stripe secure checkout · No account needed
15GB
- 15GB high-speed data
- Automatic activation
Automatic. Data works the moment the eSIM connects to Unitel. Nothing to dial, nothing to switch on.
QR emailed within minutes · Stripe secure checkout · No account needed
