MTN, Airtel and Glo: Why Nigeria’s Telecom Giants Are Losing Customers in 2026

Nigeria’s telecom market is changing fast.

For years, MTN, Airtel, Glo and 9mobile focused on signing up as many subscribers as possible. The goal was simple: get more SIM cards into more hands.

But that game is slowing down.

Today, the real battle is no longer just about who has the most customers. It is about who can give Nigerians faster, cheaper and more reliable internet.

As of February 2026, Nigeria had 152.5 million active internet subscriptions on GSM networks. In the first quarter of 2026 alone, Nigerians used 4.06 million terabytes of data.

That tells a clear story. Nigerians are using more data than ever before.

People are streaming movies, watching TikTok, running businesses online, using fintech apps, taking online classes, working remotely and staying connected on social media. Data has become part of everyday life.

This is why MTN, Airtel and Glo are fighting harder for the data market. The money is no longer just in voice calls or new SIM cards. The real money is in data.

MTN is still far ahead. As of March 2026, it had 82.53 million internet subscribers and controlled 52.31% of the market. Airtel came second with 54.22 million internet subscribers and 33.89% market share.

Together, MTN and Airtel control more than 86% of Nigeria’s data market.

Glo is now far behind with 15.56 million internet subscribers and 12.21% market share. This is a big drop for a company that once held between 26% and 28% of the market for many years.

9mobile, now rebranded as T2, has almost disappeared from the main race. It has only 847,225 internet subscribers and 1.59% market share. In 2015, it had more than 23 million subscribers and 15.7% of the market.

The customer movement also shows what is happening.

NCC porting data for February 2026 shows that 9mobile lost the highest number of users who moved to other networks, with 1,018 outgoing ports. Glo followed with 381. MTN and Airtel lost fewer users, with 195 and 241 outgoing ports.

This means many users are moving away from weaker networks and choosing stronger ones.

The reason is simple. Nigerians want better service.

Nobody wants to buy data that disappears quickly. Nobody wants slow internet during a bank transfer. Nobody wants poor network when trying to join an online meeting, watch a video or run a business.

This is why revenue now matters more than subscriber numbers.

MTN made N2.8 trillion from data in 2025. Airtel made N838.6 billion. Together, both companies generated more than N3.6 trillion from data in one year.

That is huge.

It shows that data is now the real engine of Nigeria’s telecom industry.

MTN is staying ahead because it is spending heavily on its network. In 2025, the company invested about N1 trillion in network upgrades. The money went into expanding 4G, building more 5G capacity and improving service in busy areas.

That investment is already showing results. In the 2025 nPerf mobile internet ranking for Nigeria, MTN came first with 37,106 points. It led in download speed, upload speed and latency. Its average download speed was 18.65 Mbps.

MTN also controls 80.7% of fixed internet subscriptions as of March 2026. That matters because more homes, offices and businesses now want stable broadband, not just mobile data.

Airtel is also pushing hard.

The company has expanded its network by more than 10% in the past year. It added 1,561 new sites, bringing its total to nearly 17,200 sites across Nigeria.

Three years ago, Airtel had just over 13,000 sites. That means it has added more than 4,000 towers in three years.

Airtel may not be bigger than MTN, but it is clearly trying to close the gap. It ranked second in the nPerf performance report with 25,614 points, ahead of Glo.

Glo’s problem is different.

The company is not just chasing MTN and Airtel. It is also trying to recover lost ground.

Between 2023 and 2024, Glo lost 41.5 million subscribers. Some of this came from the NCC’s NIN-SIM linkage enforcement, which forced networks to disconnect unverified lines.

But Glo’s losses were much bigger compared to others, and its recovery has been slower.

The company ranked third in the nPerf report with 20,475 points. Many users still complain about network quality. Glo has been upgrading some sites, especially to improve indoor coverage, but it has not matched the scale of MTN and Airtel’s expansion.

For Glo, the big question is whether it can win back users who have already moved to stronger networks.

The real battle now is infrastructure.

This is no longer just about adverts, bonuses or cheap data plans. The companies that build better towers, stronger fibre networks, more data centres and wider 4G and 5G coverage will win.

NCC chairman Aminu Maida has said the telecom industry will invest more than $1 billion in infrastructure in 2026. Most of that advantage will likely go to the biggest players because MTN and Airtel have more financial strength.

Network failure is also a major issue.

Between April and July 2025, fibre cuts caused 52% of mobile network outages in Nigeria. Power problems caused another 28.1%. Together, they were responsible for almost 80% of service disruptions.

This explains why telecom service can still be frustrating for many Nigerians.

Even when a network has millions of subscribers, poor infrastructure can push customers away. Once users keep experiencing failed calls, slow browsing and unstable internet, they begin to look for another option.

Technology is also changing the race.

As of March 2026, 4G accounted for 53.79% of all connections in Nigeria. 2G had dropped to 36.75%, while 3G fell to 5.30%. 5G is still small but growing gradually, especially in major cities.

This means the companies with strong 4G networks today will likely dominate 5G tomorrow.

MTN and Airtel are already ahead. Glo and T2 are still trying to catch up.

So, who is winning Nigeria’s data war?

MTN is clearly in front. Airtel is the strongest challenger. Glo is struggling to regain lost ground. T2 is barely in the race.

But for everyday Nigerians, the real issue is not market share. It is simple: which network works best where you live, work, study or do business?

That is what now decides customer loyalty.

The telecom war in Nigeria is no longer just about having the biggest name. It is about giving people internet that actually works.

And in 2026, that race is already separating the strong networks from the struggling ones.