Airtel Africa’s Data Boom Shows How Smartphones Are Reshaping Its Business

Airtel Africa’s latest half-year results tell a bigger story than another rise in mobile subscribers. Across its 14 markets, the operator now has 89.9 million data customers, up 15% year on year, and smartphones account for 51.6% of devices on its network. The average smartphone customer used 13.3 GB of data a month in the six months to September 2026, compared with 10.1 GB a year earlier. That increase is changing what Airtel sells, what it must build and how investors should judge its growth.

According to Airtel Africa’s half-year filing released on 30 October, data revenue rose 28% in constant currency. It now contributes about half of mobile-services revenue, up from 46.5% a year earlier. The company also reported a 10.7% increase in data average revenue per user at constant exchange rates. In other words, growth came from both more people using data and higher revenue from each data customer, rather than subscriber additions alone.

That distinction matters. A mobile operator can sign up millions of customers without a proportionate lift in revenue if those customers remain on low-spending voice plans. Airtel’s figures point to a gradual shift towards heavier internet use. More affordable smartphones, video, social platforms, digital payments and other online services can all increase demand, although the results do not isolate how much each activity contributed. The company reported 193.9 million customers overall, leaving a large gap between its total base and the 89.9 million who use data.

The opportunity comes with a cost. More people streaming, working and transacting on phones put pressure on radio capacity, fibre backhaul and power supply. Airtel reported group capital expenditure of $657 million for the half year, up from $318 million a year earlier, as it expanded its network. The filing says 5G was operational in seven markets at the end of September, across 4,094 sites. Those figures show investment is rising alongside traffic, but they do not prove that every customer is receiving a better connection.

The economics are especially important in markets where consumers buy small prepaid bundles and compare prices closely. Greater monthly consumption does not necessarily mean data has become affordable for every household. It may reflect heavier use among people who already own smartphones and can pay for connectivity. Airtel therefore has to keep widening access while ensuring that extra traffic produces enough revenue to support capacity, maintenance and energy costs.

The company’s earlier first-quarter results had already shown data and mobile money doing much of the growth work. The latest release makes the data side more concrete. Smartphone penetration has passed the halfway mark, and usage per smartphone customer is roughly one-third higher than the 10.1 GB reported a year ago. Data’s share of mobile-service revenue has also reached a threshold that makes it central to Airtel’s business, not an add-on to voice.

For Africa’s digital businesses, a broader base of active internet users can mean a larger potential audience for commerce, media, education and financial services. But a connected customer is not automatically a paying customer for those services, and country-level conditions differ. Coverage, device prices, reliable electricity and the price of data still shape how far the opportunity extends. TechBooky Intelligence’s look at Africa’s tech economy also highlights the persistent gap between mobile-broadband coverage and actual use.

Airtel Money is another part of this picture, although its newly listed business should not be conflated with every Airtel-branded payments operation. TechBooky has already covered its separate half-year results. The significance here is narrower. A stronger data network can support more digital activity, while mobile money may give customers another reason to stay engaged with the wider Airtel ecosystem. The company has not quantified how much of its data growth comes from that relationship.

The next test is whether Airtel can maintain its data revenue momentum while funding the infrastructure that makes greater usage possible. Subscriber growth remains useful, but the more revealing measures may be smartphone adoption, monthly consumption, data revenue per user and the cost of serving that traffic. Airtel’s latest results suggest those measures are becoming the centre of its African telecoms story.