The quickest way to check your MTN number

The fastest way to find your MTN phone number is to dial *100# on your MTN phone and press call. Your number will appear on your screen within seconds. This works on any MTN line — prepaid or postpaid — and costs nothing.

If you do not have credit or airtime on your phone, this method still works because it is a free USSD code that MTN provides to all customers. You do not need an internet connection either.

If the code does not work, your phone may have restrictions on USSD codes, or you may be outside MTN's network coverage. Try one of the other methods below.

Key Takeaways

  • Dial *100# and press call to see your MTN number on your screen instantly, with no cost or airtime needed.
  • Check your SIM card packaging, your phone's settings, or your MTN bill or invoice if you have one saved.
  • Contact MTN customer service by calling 180 from any phone, or visit an MTN store with your ID if you cannot retrieve your number another way.
  • Your phone number is also visible in your phone's settings under "About Phone" or "Phone Information" on most Android and iPhone devices.

Check your SIM card packaging or documents

Your MTN number is usually printed on the SIM card packaging that came with your phone, or on a sticker attached to the SIM card itself. Look for a label that says "Phone Number", "Mobile Number", or "MSISDN" — this is the technical term MTN sometimes uses.

If you have kept your original MTN bill, invoice, or welcome letter, your number will be listed there as well. These documents often arrive by email or post when you first activate a postpaid plan.

If you have thrown away the packaging and do not have a bill, move to the next method.

Find your number in your phone's settings

Most phones store your number in the device settings, though the location varies by phone type.

On Android: Open Settings, scroll down to "About Phone" or "Device Information", and look for "Phone Number", "My Phone Number", or "Status". Your MTN number should appear there. On some Android phones, this field may be blank if the number was not synced when you set up the phone.

On iPhone: Open Settings, tap "General", then "About". Look for "Phone Number" near the top of the screen. If it is blank, the number may not have synced during setup.

If your phone's settings do not show your number, the USSD code *100# remains your most reliable option.

Call MTN customer service

You can reach MTN customer service by dialing 180 from any phone — MTN or another network. Customer service representatives can tell you your MTN number over the phone. This call is free on most networks, though some carriers may charge a standard call rate.

Have your ID or passport ready when you call, as MTN may ask for identifying information to confirm you are the account holder. Wait times can be long during peak hours, so calling early in the morning or late in the evening may be faster.

If you are outside your home country, calling 180 may not work. Contact MTN through their website or social media instead, or visit an MTN store when you return.

Visit an MTN store in person

Walk into any MTN store with a valid ID or passport, and staff can look up your number in their system. Bring your SIM card if you have it, as this speeds up the process. You do not need an appointment.

MTN stores are located in most towns and cities. You can find the nearest one by searching "MTN store near me" on Google Maps, or by calling 180 and asking for the closest location.

This method works even if your phone is lost, stolen, or broken, as long as you have your ID and SIM card.

What to do if none of these methods work

If *100# does not work and your phone's settings are blank, your SIM card may have a technical issue or may not be fully activated on MTN's network. Contact MTN customer service at 180 or visit a store — they can check whether your SIM is active and reissue your number if needed.

If you are using a phone borrowed from someone else and cannot find the number, ask the phone's owner to check their settings or dial *100#. Your MTN number belongs to your SIM card, not the phone itself, so it will only appear on a device where your SIM is inserted.

Frequently Asked Questions

Does *100# work if I have no airtime or credit?

Yes. The *100# code is a free service that works even with zero airtime. MTN does not charge for this USSD request because it is a basic account information service.

Will my number appear if I just got a new SIM card?

Usually yes, but sometimes there is a delay of a few hours while MTN's system updates. If *100# does not work immediately after activation, wait a few hours and try again. If it still does not work after 24 hours, contact customer service.

Can I check someone else's MTN number?

No. The *100# code only works on the SIM card inserted in your phone. You cannot use it to look up another person's number. If you need someone's MTN number, ask them directly or check your call history or contacts.

What if I lost my phone but still have my SIM card?

Insert your SIM card into another phone and dial *100#. Your MTN number will appear on that phone's screen. This works because your number is stored on the SIM card itself, not on the phone.

Is there a way to check my number online?

MTN does not offer a web portal where you can log in and view your number. The USSD code *100# and calling 180 are the fastest remote methods. If you have an MTN account online for paying bills, your number may be listed there, but not all customers have online accounts set up.