How 2 networks came to hold 85% of Nigeria's 195 million mobile lines
Nigeria's active mobile lines reached 195.11 million in July 2026 and MTN passed 100 million on its own. The data show a 2-network market, a sizeable gap between SIMs and people, and money moving fast from voice to data.
Nigeria had 195.11 million active mobile lines in July 2026, according to Nigerian Communications Commission (NCC) data published on 10 September. That was 2.88 million more than June's 192.23 million. MTN accounted for 100.86 million of them, the first time a single Nigerian network has crossed 100 million subscriptions.
Big round numbers get headlines. The milestone is the least interesting thing in the data, though. Read closely, the July figures describe a market that has become a 2-player game, growing in quality faster than in size, and measured loosely enough that anyone sizing a business on it should build in a margin of error.
How Nigeria's mobile market splits by network
The NCC published operator counts for July. Dividing each by the 195.11 million total gives the shares below.
- MTN: 100.86 million lines, about 51.7%
- Airtel: 66.12 million, about 33.9%
- Globacom: 23.68 million, about 12.1%
- T2 (formerly 9mobile): 3.54 million, about 1.8%
Shares calculated by STATART from the NCC operator counts.
MTN and Airtel together hold about 85.6% of all lines, so roughly 6 lines in every 7 sit on one of 2 networks. Globacom, once a genuine challenger, holds about 1 line in 8. T2 holds fewer than 1 in 50.
Growth is even more concentrated than share. MTN went from 98.64 million in June to 100.86 million in July, adding about 2.22 million lines, or roughly 77% of the industry's 2.88 million net additions. A network with 52% of the market taking 77% of new lines is still pulling away. Since January, MTN has added more than 6.6 million lines, about 31,000 a day.
Why 195 million lines does not mean 195 million Nigerians
Here is the first trap. The NCC counts active lines, not people. Many Nigerians carry 2 or 3 SIMs: one for cheap calls, one for data, one that works back home. Nigeria does not publish a reliable count of unique mobile users, so the number of people behind the 195 million lines is unknown, and certainly smaller.
The operators' own figures show how much the counting method matters. MTN told investors it ended June with 92.2 million subscribers. The NCC's figure for MTN in the same month was 98.64 million. That is a gap of about 6.4 million lines, with the regulator's count roughly 7% higher than the company's, for the same network in the same month. The 2 use different definitions, and neither is wrong, but a business sizing a market on "195 million mobile users" is starting from the most generous number available.
Why the published shares do not match the counts
The second trap is subtler. Add up the 4 operators' July counts and you get about 194.2 million, roughly 0.9 million short of the published total. The shares circulated with the data, 51.38% for MTN and 34.44% for Airtel, do not match the July counts either. They fit June's base of 192.23 million much more closely, which suggests the shares and the counts come from different months.
None of this is scandalous. Telecom data get revised and operators report on slightly different timelines. But anyone quoting Nigerian market shares to 2 decimal places is claiming precision the data do not have. "MTN holds a little over 50% of the market" is the defensible statement.
4G, 5G and the slow fade of 2G
The quality of connections is improving faster than the count. NCC data show 4G and 5G made up 58.92% of connections in June 2026, up from 54.49% a year earlier. In the NCC's monthly technology figures, 4G plus 5G stood at 56.72% in December 2025, so the share is rising by about 0.37 percentage points a month.
That is steady, not fast. At that pace, the 41% of connections still on 2G and 3G would take roughly 30 months, until about the end of 2028, to fall below 30%. 5G itself grew from 3.77% to 4.49% of connections between December and May. It is the fastest-growing technology in relative terms, but still fewer than one connection in twenty. In August, 2G alone still carried 36.05% of internet connections.
Where the money is moving
This shift matters more for revenue than the headline count, because data, not voice, is where spending is growing. MTN Nigeria's results for the first half of 2026 show data revenue of N1.70 trillion, up about 38%, against voice revenue that grew 12% to 15%, depending on the measure reported. Data is now roughly 57% of MTN's service revenue and growing about 2.5 to 3x as fast as voice.
Use is rising with it. MTN reported 55.7 million active data users, about 60% of its own subscriber base, each using an average of 14.8GB a month. Across all networks, Nigerians used a record 1.76 million terabytes of data in August.
Pricing helped as well. In January 2025 the NCC approved tariff increases of up to 50%, the first in almost 11 years, after some operators had asked for 100% or more. Usage kept climbing after the increase, which tells you how inelastic data demand has become for Nigerians already online.
What this means for businesses
Distribution is concentrated. A partnership with MTN or Airtel reaches about 85% of Nigerian lines. That is efficient for reach and weak for bargaining power.
Size on people, not SIMs. Treat 195 million as a ceiling, and build a range below it for unique users before forecasting demand.
Small networks are a weak signal. Globacom's and T2's shares say more about those companies than about demand for mobile services.
Upgrades beat acquisition. The next phase of growth is converting the 4 connections in 10 still on 2G and 3G, mostly cheaper handsets and lower-income users, into data spenders.
What would change my mind
- Globacom's share rising above 13% for 3 straight months, which would suggest a real recovery rather than noise.
- MTN's share of monthly net additions falling below 50% for a sustained period.
- The NCC publishing unique-subscriber counts that show the dual-SIM gap is much smaller than assumed.
Nigeria's mobile market is unlikely to become more competitive soon, and I'd put the odds of MTN still holding more than 50% of all lines at the end of 2027 at roughly 80%. The bigger contest is not over lines but over the 2G-to-4G upgrade, because that is where the money is moving.
Sources: Techeconomy, NCC July 2026 subscriber and technology data · Business Post, MTN growth since January · THISDAY, NCC monthly 2G to 5G shares · Nairametrics, MTN Nigeria H1 2026 results · Techeconomy, MTN Nigeria H1 2026 subscribers and usage · Technext, NCC August 2026 internet data · TechCabal, NCC tariff approval (Jan 2025)
