Just bought a new SIM? Lost the card holder? Or you simply forgot your own line? It happens to everyone. This guide shows how to check my phone number on MTN, Airtel, Glo and 9mobile with simple USSD codes, plus easy backup methods that work without any code.
Codes to Check My Phone Number on All Networks
| Network | Code to check your number |
|---|---|
| MTN | *663# (or *123# and follow the menu) |
| Airtel | *121# and follow the menu |
| Glo | *135*8# |
| 9mobile | *248# |
Network menus change from time to time. If a code does not respond, use one of the backup methods below.
How to Check My Phone Number on MTN
- Dial *663# on your MTN line.
- Your phone number appears on the screen.
- If that does not work, dial *123# and look for the “My Number” or account information option.
The MyMTN app also shows your number on the home screen once you log in.
How to Check My Phone Number on Airtel
- Dial *121# on your Airtel line.
- Choose the option for your account or “My Number”.
- Your number appears on the screen.
The My Airtel Africa app also displays your number.
How to Check My Phone Number on Glo
Dial *135*8# on your Glo line. Your phone number appears on the screen.
How to Check My Phone Number on 9mobile
Dial *248# on your 9mobile line, and your number will show on screen.
Backup Methods That Work on Any Network
Call or flash a friend
The simplest trick is to call a friend or family member. Your number shows on their phone. A quick flash costs nothing if they do not pick up.
Check your phone settings
On many Android phones, go to Settings › About phone › SIM status or Phone number. On iPhone, go to Settings › Phone › My Number. Some SIM cards do not store the number, so this may show “unknown”.
Look at your SIM pack
The number is usually printed on the card holder that came with your SIM.
Check WhatsApp
If WhatsApp is registered on this SIM, open Settings and tap your profile. Your number appears under your name.
Why You Should Save Your Number
Once you check my phone number details, save your number as a contact named “Me”. That way you can find it instantly whenever a form, bank or delivery rider asks for it.
Make Sure Your Number Is Linked to Your NIN
All SIMs in Nigeria must be linked to a National Identification Number. If your line is not linked, it can be barred. Dial *996# to check the numbers linked to your NIN, and read our guide on how to link NIN to SIM if needed.
Forgot your NIN too? See how to check NIN number.
Other Handy Codes
| Task | Code |
|---|---|
| Check airtime balance | *310# |
| Check data balance | *323# |
| Buy data | *312# |
| Customer care | 300 |
Learn more in our guide to how to check data balance.
Phone Number Code Not Working?
- Check signal: USSD needs network coverage.
- Restart the phone and try again.
- Use the correct SIM slot on dual-SIM phones.
- Try a backup method, such as calling a friend.
- Call 300 for customer care.
Frequently Asked Questions
How do I check my MTN number?
Dial *663# or use *123# and the account menu.
How do I check my Airtel number?
Dial *121# and follow the menu.
How do I check my Glo number?
Dial *135*8#.
How do I check my 9mobile number?
Dial *248#.
Is checking my number free?
These codes are usually free, but networks may change their terms.
For network information, visit the Nigerian Communications Commission website or call 300 from your line.
Oladepo Babatunde (Prince Babatee Tunde) is a Computer Scientist, researcher, and professional content writer with a Higher National Diploma in Computer Science from Kwara State Polytechnic, Nigeria.
With a background in technology and a passion for clear communication, Babatunde specializes in creating thoroughly researched, reader-focused content on productivity, personal development, home living, and technology. Every article he writes is backed by extensive research and fact-checking to ensure readers receive accurate, actionable information.
As a freelance writer, he has helped brands and publications deliver content that educates, engages, and empowers their audiences. His mission at Vibena is simple: make complex topics easy to understand and help Nigerians live smarter, more productive lives.
