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Key Data & USSD Codes for Nigerian Networks 2026

The codes worth memorising — buy data, check balance and more, across all four networks.

By Belmadeng Editorial · Updated 23 Sept 2026

Please note

Belmadeng is an independent guide and is not affiliated with, endorsed by or sponsored by MTN, Airtel, Glo, 9mobile or any network. Data prices and bundles change constantly — every price here is indicative only. Always confirm the current plan by dialling the official code (the unified *312#) or using the network’s own app before buying. USSD codes can also change — verify on the network’s official channel.

On this page

The unified *312#

The NCC has mandated a single data code, *312#, that opens the data-bundle menu on MTN, Airtel, Glo and 9mobile. It's the one to remember if you switch SIMs or forget a network's own code.

Buy-data codes

  • All networks: *312#
  • MTN: *312# / *131# (menu), *3121# (subscribe)
  • Airtel: *312# / *141#
  • Glo: *312# / *127# / *777#
  • 9mobile: *312# / *229#

Balance codes

  • All networks: *323# (data balance)
  • MTN: also text 2 to 131
  • Glo: also text INFO to 127

Other useful codes

  • Airtel tariff/migration: *121# (view tariffs)
  • Check your own number: networks vary — check the app or a quick search.
  • Airtime transfer (Airtel example): *141*712*amount*number#.

The regulator angle

The push for harmonised short codes comes from the NCC. For the regulator's full harmonised code standard, see our NCC USSD codes page; for wrong charges, the NCC billing dispute process.

Codes can change

Networks occasionally update codes. If a code behaves oddly, verify the current one on the network's official app or website before assuming a problem.

Tips

  • Memorise *312# (buy) and *323# (balance).
  • Keep network-specific codes handy.
  • Verify if a code stops working.

Frequently asked questions

What is the *312# code?
The NCC-mandated unified data code that opens the data-bundle menu on MTN, Airtel, Glo and 9mobile — the one to remember across networks.
What code checks data balance?
*323# checks your data balance on all networks; MTN also lets you text 2 to 131 and Glo lets you text INFO to 127.
What are the network-specific data codes?
MTN *131#/*3121#, Airtel *141#, Glo *127#/*777#, 9mobile *229# — all in addition to the unified *312#.
Why did all networks get the same data code?
The NCC pushed harmonised short codes so the same code works across networks — see our NCC USSD codes page for the regulator's full standard.
What if a USSD code stops working?
Networks occasionally update codes — verify the current one on the network's official app or website before assuming a fault.

Related data guides

How to buy · NCC USSD codes · Check balance · All data guides

Reviewed: 23 Sept 2026 · Author: Belmadeng Editorial. Independent guide — not affiliated with any network. Prices/codes are indicative and change — dial *312# or use the network app to confirm.