Have you ever received a missed call and hesitated to return it because you weren’t sure which network it belonged to? You’re not alone. Many Nigerians use multiple SIM cards from MTN, GLO, Airtel, and 9mobile to take advantage of cheaper, intra-network call rates. But knowing which SIM to call back on can be confusing—especially when you only have the number and not the network.
In this post, we’ll break down how to identify a phone number’s network using common prefixes, and we’ll also explore better tools for accurate results in today’s mobile environment.
Why Knowing a Phone Number’s Network Matters
With the high cost of cross-network calls in Nigeria, many users prefer to call within the same network. That’s why having multiple SIMs has become a money-saving strategy. But when you get a missed call from an unknown number, how do you know which line to call back with?
For example, if you get a missed call from 08029xxxxx, is that GLO or Airtel? Calling with the wrong line could mean higher charges—or using up your wrong bonus airtime.
READ MORE: Can I Travel With an Expired Nigerian Passport to Nigeria?
Common Nigerian Mobile Number Prefixes
Here’s a guide to help you recognize mobile networks by their number prefixes (the first four digits of the phone number):
MTN Nigeria
- 0703
- 0706
- 0803
- 0806
- 0810
- 0813
- 0814
- 0816
- 0903
Airtel Nigeria
- 0701
- 0708
- 0802
- 0808
- 0812
- 0902
GLO Nigeria
- 0705
- 0805
- 0807
- 0815
- 0905
9mobile (formerly Etisalat)
- 0809
- 0817
- 0818
- 0908
- 0909
Visafone (largely defunct)
- 07025
Note: This method of identification works only if the number has not been ported to another network.
READ MORE: How To Reveal Any Hidden Caller ID (Private Number) on Your Phone
The Challenge: Number Portability
While the prefixes listed above used to be a reliable way to tell which network a number belonged to, Mobile Number Portability (MNP) has changed that. Since 2013, Nigerians have been able to switch networks while keeping their original phone numbers.
So, a number starting with 0803 (traditionally MTN) could now belong to Airtel, GLO, or 9mobile—making prefix-based guessing unreliable in many cases.
How to Accurately Check a Number’s Network
If you want a sure way to check a number’s current network, try these:
Use the NCC Short Code: 2442
Some Nigerian networks allow you to send a text or dial a code to check the network a number currently belongs to. This service is part of the NCC’s mobile number portability support.
Try Apps like Truecaller or ShowCaller
These caller ID apps not only show who is calling, but often include the current carrier of the number.
Online Lookup Tools
There are Nigerian websites that let you input a number and tell you what network it’s currently on.
Final Thoughts
If you’re still relying on number prefixes to guess a phone number’s network, it’s time to upgrade your strategy. While the old method still works sometimes, number portability means you need better tools for accuracy.
Whether you’re trying to avoid high call rates or you’re just curious, knowing the real-time network of a phone number can save you airtime and frustration.
FAQs
Can I still rely on the first four digits of a number to determine the network?
Not always. While the first four digits (called prefixes) used to indicate the original network provider, this method is no longer reliable due to Mobile Number Portability (MNP). A number that starts with 0803, typically an MTN line, could now be active on Airtel, GLO, or 9mobile if the user ported their number. Prefixes are a helpful starting point, but they are no longer a guarantee.
What’s the best way to check a phone number’s network today?
The most accurate methods include:
- Truecaller or ShowCaller: These apps identify caller information and often indicate the current carrier.
- NCC Short Code (2442): Some mobile operators allow you to send a code to this number to verify a number’s network.
- Network-specific USSD codes: Some networks provide codes you can dial (e.g., *121# or *248#) to check portability status.
- Third-party websites: Some Nigerian platforms offer real-time network verification tools. Just enter the phone number and it tells you the current network.
Are Visafone numbers still active?
Visafone, once a CDMA mobile operator in Nigeria, was acquired by MTN Nigeria in 2016. While the brand itself is no longer operational, some former Visafone numbers (like 07025) were migrated to MTN’s GSM network. However, support for these numbers is limited, and new users can no longer register for Visafone lines. If you come across a Visafone number, it’s likely now operating on the MTN network—if it’s still active at all.
Can I port my number to another network easily?
Yes, porting your number is relatively straightforward. All you need to do is:
- Visit the customer service center of the network you want to switch to.
- Provide a valid ID and fill out a porting request form.
- Insert the new SIM card and complete activation.
Porting usually takes a few hours to a day, and you’ll keep your original number, including its prefix.
Will I lose my airtime or data if I port to another network?
Yes. When you port your number, your airtime, data, bonuses, and existing subscriptions do not transfer to the new network. It’s recommended to use up your balance before initiating a port request.
Can I port back to my old network if I change my mind?
Absolutely. However, you’ll need to wait at least 45 days after porting before switching back. This regulation is in place to discourage frequent and unnecessary porting.
Do all Nigerian networks support number portability?
Yes. All four major Nigerian mobile networks—MTN, Airtel, GLO, and 9mobile—fully support mobile number portability. However, the quality of service during porting may vary slightly between providers.
