Ever dialled a random code on your phone and wondered, “What did I just do?”
If you’re an MTN Nigeria subscriber and you’ve stumbled upon the code 4063*3#, you’re probably scratching your head or hoping for some magic to happen. Let’s cut through the noise and give you a real, accurate, and meaningful guide that even your tech-averse friend could understand.

⚠️ Quick truth: There’s no official evidence that 4063*3# is a valid or supported USSD code for MTN Nigeria’s services as of 2025. This article explains what’s actually used today. (We backed this with reliable telco sources.) RapidBills+1

---

What Exactly Are USSD Codes?

Before we get into specifics, let’s cover the basics:

USSD stands for Unstructured Supplementary Service Data. It’s a protocol that lets your phone communicate with MTN’s network directly — without the internet. Think of it as secret phone dial codes that unlock quick actions like checking your balance, buying data, or sending airtime to a friend. Wikipedia

Unlike SMS that sends a message, USSD keeps a live connection with MTN’s servers until the task is completed — which means faster interactive responses.

Is 4063*3# a Real MTN Code?

Short answer: No, according to current official MTN and telecom guidance.

No reputable source lists 4063*3# as a valid MTN USSD service code used in Nigeria. The absence of this code across multiple updated MTN USSD code lists suggests that it may be:

• A typo or misinformation
• A regional/test code not meant for general use
• Possibly gangled from *standard MTN numbers but not functional

Most MTN USSD codes start with *3xx# or *123#. Notably, 4063*3# doesn’t fit the pattern seen in trusted telecom guides. RapidBills+1

So if your phone doesn’t respond or throws an error, that’s probably why — the code isn’t recognized.

Why This Matters

MTN Nigeria is subject to Nigeria Communications Commission (NCC) directives to simplify and unify USSD codes across all major networks — and this includes Airtel, Glo, and 9mobile as well. These changes mean:

• Old codes like *556# or *131# may no longer work.
• New unified codes like *310#, *312#, and *321# are now standard across networks. RapidBills

So if you tried 4063*3# hoping for airtime magic, it may simply be out of date or never official.

Core MTN Nigeria USSD Codes You Should Know (2025)

Let’s pivot to the real and current MTN USSD services — ones that actually work and are widely used by subscribers.

1. Check Airtime Balance – *310#

This code shows how much airtime you have left. It’s one of the essential codes every MTN user should memorize. RapidBills

Pro tip: Very handy when your data suddenly stops working — this confirms if you’re out of airtime first.

2. Buy Airtime / Recharge – *311*Voucher PIN#

This dial code lets you recharge your MTN line using a physical voucher. Just enter the 16-digit PIN after *311*.

Example:

*311*1234567890123456#

Why it matters: It’s the new standardized way to recharge airtime post-NCC reforms. Smartisp.com.ng

3. Buy Data Bundles – *312#

Dial this to access MTN’s data bundle menu — daily, weekly, monthly, and even video or streaming packs. RapidBills

Once you dial:

1. You’ll see a menu
2. Choose a plan
3. Confirm purchase

Think of it as the digital marketplace for MTN internet.

4. Transfer or Gift Data – *321#

Word of the year: share the love (and data)!

With *321#, you can send data to another MTN user — ideal if your friend is stuck with tiny data left. RapidBills

Fun fact: it’s excellent for birthdays — you could drop someone a few MBs as a funny surprise.

5. Check Data Balance – *323#

Once you’re hooked to a data plan, this code tells you what’s left. Simple and useful. RapidBills

6. Manage Value-Added Services – *305#

This opens MTN’s menu for additional services like app subscriptions, ringtones, and other premium features. RapidBills

7. Check Your MTN Number – *123*1*1#

Not sure what your number is?

This code displays it immediately on your screen. Simple. RapidBills

Why USSD Codes Still Matter Today

You might wonder: “Don’t apps make this old-school?”

Actually:

USSD doesn’t require Internet — great for quick checks anywhere, anytime. Wikipedia
Works on feature phones and smartphones alike.
Essential when data runs out or app access is unstable.

In Nigeria, USSD remains one of the most popular ways to manage mobile accounts — even in an era rich in apps and digital interfaces.

A Little Humor (Because Why Not?)

If MTN USSD codes had a dating profile, it would say:
“Basic, reliable, no-internet needed, always shows up when you need it.”
While 4063*3# would be like:
“Looking for attention; not sure what I do.”

In plain terms — always stick with codes that Telco and NCC guidelines confirm.

Why Some Codes Like 4063*3# Still Circulate

You may ask: If 4063*3# doesn’t work, why do people share it?

Here are a few real reasons:

Rumors & Party Tricks

Sometimes people watch a video, see a code, and test it — that doesn’t make it official.

Network Phasing

Before 2023, MTN had more varied codes. But NCC’s harmonisation reform changed the landscape. RapidBills

Trial or Internal Codes

Telcos maintain internal test codes that aren’t meant for the public — like backstage doors only staff can open.

In short:
Just because you can dial it doesn’t mean it’s real or supported.

Bottom Line

Topic	Reality
MTN Nigeria 4063*3#	No official use confirmed in MTN’s public USSD code list
Reliable Airtime check	Use *310#
Buy airtime	Use *311*Voucher PIN#
Buy data	Use *312#
Gift data	Use *321#
Check data balance	Use *323#
Find your number	Use *123*1*1#

All are verified by telecom guides. RapidBills

Source Notes

Every key code and detail mentioned here reflects the latest structured code list for MTN Nigeria post the NCC harmonisation of USSD services in 2023/2024 — and those codes remain in use into 2025. RapidBills
No recognized telecommunications document currently lists 4063*3# as an active or official MTN USSD service.

Final Tip

Whenever you see a random USSD code online, here’s a good rule:

1. Confirm it with MTN or NCC sources
2. Test with a small action first
3. Never enter personal PINs unless you’re sure

That way, you protect your airtime, data, and peace of mind.