Quick answer: On an MTN Nigeria line, dial *323*4# to check your main data bundle and bonus balance. MTN also lists *310#, texting 2 to 323, the myMTN app and Zigi as current balance-checking options.

If you only want to know how much data you have left, the USSD method is usually the fastest because it does not require an internet connection or smartphone app.

Check MTN data balance with USSD

Dial:

*323*4#

from the MTN line whose balance you want to check.

MTN says this method displays the main data bundle and bonus balance. The network also lists *310# as another balance-checking route.

If one menu is temporarily unavailable, try the other before assuming your bundle has disappeared.

Check your balance by SMS

Open your Messages app and send:

2

to:

323

MTN lists this as a current way to retrieve data-bundle information.

This can be useful on a basic phone or when you prefer receiving the balance as a message you can refer to again.

Check in the myMTN app

If you already use the myMTN app, sign in with your MTN number and check the balance shown on your account or data section.

The app is useful when you have several active bundles because it can give you more account context than a short USSD response.

Do not install an app from a random download page just to check your balance. Use the official app-store listing or MTN’s own channels.

Check with Zigi

MTN also lists Zigi, its chatbot/self-service channel, as a way to view your data balance.

This is an alternative rather than something you need for a normal balance check. If USSD works, there is no reason to make the process more complicated.

How to check when your MTN data expires

The same current MTN balance channels can also show the validity or expiry information for your active data bundle:

  • dial *323*4#;
  • dial *310#;
  • text 2 to 323;
  • check the myMTN app; or
  • use Zigi.

If you have multiple bundles, they may have different expiry dates. Do not assume every active allowance ends on the same day.

Why an older MTN data code may not work

Nigeria moved major mobile-network services to harmonised short codes, and older tutorials can remain indexed long after their instructions change.

If an old article gives you a code that no longer works, use MTN’s current support information rather than repeatedly trying the outdated code.

DigiPlain marks network guides with a verified date for this reason.

Balance says you have data but the internet is not working

A remaining balance does not prove that your phone currently has a usable internet connection.

If you have data but pages will not load, check these separately:

  1. Turn mobile data off and back on.
  2. Confirm the correct SIM is selected for mobile data on a dual-SIM phone.
  3. Toggle airplane mode on briefly, then off.
  4. Restart the phone.
  5. Check whether the problem affects all apps or only one app.
  6. If possible, test the MTN SIM in another phone before changing APN settings.

That separates a balance problem from a network or phone problem.

Current MTN data-balance methods at a glance

MethodWhat to do
USSDDial *323*4#
Alternative USSDDial *310#
SMSText 2 to 323
AppOpen the myMTN app
Self-serviceUse MTN Zigi

Official source

Verified on 8 August 2026 against MTN Nigeria’s Data Bundles help information:

https://www.mtn.ng/helppersonal/data-bundles/

Network codes can change. If MTN updates the process after the verification date above, the official MTN page should be treated as the source of truth.

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