Nigeria’s telecom operators are rapidly expanding their urban network coverage, but worsening congestion across major cities is beginning to strain mobile internet quality as subscriber demand grows faster than infrastructure optimization.
New telecom capacity analysis covering the period between September 2025 and February 2026 shows that operators including MTN Nigeria, Airtel Nigeria, and Globacom significantly increased their urban network footprints during the period, reflecting accelerating investment in coverage expansion amid rising digital consumption.
However, the report by the Nigerian Communication Commission (NCC) indicates that expanding network reach alone is no longer sufficient to absorb surging demand for video streaming, social media, gaming, fintech transactions, cloud services, and large file downloads across Nigeria’s densely populated urban markets.
MTN retained the country’s largest urban telecom footprint, expanding from 15,936 square kilometres in September 2025 to 23,376 square kilometres by February 2026, representing a 46.7% increase in urban network surface area.
Airtel expanded its urban footprint by 56.3% to 19,899 square kilometres, while Globacom recorded the fastest growth among the major operators, increasing coverage by 67.6% to 15,496 square kilometres within the same period.
Smaller operator 9mobile, identified in the report as T2, more than doubled its urban footprint by 104.7%, expanding from 953 square kilometres to 1,951 square kilometres.
Urban congestion rises as download traffic overwhelms networks
Despite the aggressive infrastructure rollout, urban congestion levels increased across most major operators, highlighting growing pressure on telecom capacity in Nigeria’s largest cities.
MTN recorded the highest level of network strain, with 1,560 square kilometres of its urban coverage area experiencing capacity limitations by February 2026. This represented 6.7% of its total urban network footprint, up sharply from 4.0% recorded in September 2025.
Airtel maintained the most stable performance among the major operators despite its rapid expansion, with only 2.6% of its urban footprint affected by congestion, compared to 2.0% previously.
Globacom’s congestion exposure more than doubled from 1.3% to 2.8% as traffic pressure intensified across its expanding urban markets.
Meanwhile, 9mobile maintained zero recorded congestion despite doubling its footprint, largely because of its smaller and more concentrated subscriber base.
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The analysis showed that download traffic is driving the overwhelming majority of congestion across Nigeria’s telecom networks.
MTN’s download-related capacity limitations rose to 6.7% in urban areas, while upload-related limitations remained comparatively low at 1.1%, indicating that bandwidth-heavy activities such as HD video streaming, content consumption, software downloads, and cloud-based applications are exerting the greatest pressure on infrastructure.
Industry analysts say this asymmetric traffic pattern reflects Nigeria’s rapidly evolving digital economy, where consumers increasingly rely on mobile broadband for entertainment, remote work, digital payments, e-commerce, and online services.
QoS pressures becoming major competitive challenge for Nigeria’s telecom operators
The report highlights how Quality of Service (QoS) is emerging as one of the most critical battlegrounds in Nigeria’s telecom sector as operators compete for high-value data subscribers.
While nationwide coverage expansion remains essential for market share growth, telecom companies are now under increasing pressure to invest in urban site densification, fibre backhaul infrastructure, spectrum optimization, and network modernization to prevent declining user experience in high-density locations.
Airtel’s relatively limited increase in congestion despite expanding its urban network by more than 56% suggests stronger efficiency in traffic management and infrastructure allocation during rollout phases.
MTN’s larger national subscriber base and broader urban footprint, however, continue to expose the operator to heavier traffic concentration and greater congestion risks.
The findings also reinforce concerns about whether Nigeria’s telecom infrastructure investments are keeping pace with the country’s accelerating digital consumption trends and urbanization levels.
With mobile broadband increasingly powering banking services, streaming platforms, logistics systems, digital commerce, education technology, and enterprise operations, persistent congestion risks could have wider economic implications beyond consumer internet performance.
BuyerMetrics Bottom Line
Nigeria’s telecom industry is entering a new phase where network quality may matter more than basic coverage expansion. While operators are rapidly growing their urban footprints, rising congestion levels show that data consumption in major cities is scaling faster than infrastructure optimization. The growing dominance of streaming, cloud services, gaming, fintech, and digital commerce is placing enormous pressure on download capacity, making QoS performance a key competitive differentiator. Operators that successfully combine aggressive expansion with efficient congestion
