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Why the 2026 World Cup Became a Stress Test for Mobile Networks
GSMA research shows how 5G, eSIMs, private networks and edge computing reshaped connectivity during the 2026 FIFA World Cup.
The 2026 FIFA World Cup turned mobile connectivity into part of the event infrastructure. Fans used their phones for navigation, translations, payments, match updates and social sharing, while broadcasters, referees, security teams and venue operators depended on reliable links behind the scenes.
In a July 29 review, the GSMA said the tournament offered a useful reference for Spain as it prepares to host the 2030 edition. The organisation’s research points to a broader change in how operators approach major events: the goal is no longer only to prevent congestion inside stadiums, but to support the complete journey from airport arrival to the final trip home.
Capacity was only the starting point
Large sporting events create short periods of extreme demand. Supporters upload photos and video, stream highlights, check live statistics and contact friends at the same time. The GSMA described additional 5G and Wi-Fi infrastructure, capacity upgrades and temporary network assets as essential tools across stadiums, airports and host cities.
Verizon, the tournament’s official telecommunication services sponsor in the United States, provides a concrete example in its account of the network prepared for the World Cup. The operator said it expected more than 50 terabytes of data to be used inside a stadium during a match. It also said upgrades were designed to increase capacity by an estimated three to five times across host stadiums.
The deployment included antennas installed under seats, large ball-shaped antennas intended to serve higher sections and nearly 140 small cells or temporary cell sites around mass-transit routes, public spaces and event locations. These details illustrate why a stadium network cannot be treated as a normal macro-cell deployment. Coverage, capacity, physical crowd movement and rapid changes in demand all have to be planned together.
From the stadium to the fan journey
The GSMA’s findings also highlight services that begin before a supporter reaches the turnstiles. Travel eSIMs can simplify connectivity for international visitors, while operator apps and digital services can help users move around host cities and access event information. According to the GSMA, 12% of consumers who had travelled internationally in the previous year used an eSIM abroad, and more than 70% of those users relied on a travel eSIM supplied by a mobile operator.
That figure does not mean every traveller will choose an eSIM, but it shows why roaming and activation are becoming part of the event experience. A visitor may need connectivity immediately after landing, before buying a local SIM or finding a shop. For operators, the opportunity is therefore linked to convenience as much as to network speed.
The GSMA also reported that 45% of mobile contract customers were interested in plans offering enhanced network performance, such as higher upload speeds, priority access, speed boosts or guaranteed low latency. Major events give operators a visible environment in which to test whether these experience-based offers are useful and understandable to customers.
Private networks and edge computing moved into the background
Some of the most important technologies used during the tournament were not visible to fans. The GSMA identified 5G Standalone, private networks, edge computing and the Internet of Things as tools for services such as live broadcasting, connected cameras, digital signage, crowd management, drones and connected ambulances.
Private 5G can isolate critical applications from general public traffic, while edge computing can reduce the distance that data must travel before it is processed. That combination matters when a service needs predictable performance rather than simply the highest possible download speed. It can support operational systems while millions of people use public networks around the same venue.
Verizon said its World Cup infrastructure included private 5G networks for tournament operations and broadcast-related use cases, as well as fibre connectivity and 5G Fixed Wireless Access for temporary locations. These deployments show how a major event can operate as a temporary, distributed communications environment rather than a collection of isolated stadium upgrades.
What operators can carry forward
The strongest lesson is that event connectivity should be designed as a long-term asset. Stadium coverage is important, but the same investments can support transport corridors, hospitals, public safety teams, local businesses and future cultural or sporting events. The GSMA argued that host cities should look beyond the immediate tournament and consider how network improvements can benefit communities after the final match.
There is also a commercial lesson. Operators can combine infrastructure with services such as eSIM activation, translation, navigation, payments and real-time information. The experience is most useful when these services work across the full fan journey and do not require visitors to understand the technical details behind them.
The 2026 World Cup therefore served as a large-scale demonstration of where mobile technology is heading. Smartphones remained the visible interface, but the experience depended on layers of radio capacity, fibre, private 5G, edge computing, IoT systems and operator software working together. For future host cities, reliable connectivity will be measured not only by whether a fan can upload a video, but by whether the entire digital environment remains dependable when millions of people try to do it at once.