To handle the sudden concentration of tens of thousands of people on an area of less than 1 square kilometer, Yettel temporarily expanded its network capacity for the event. The company said the additional capacity was comparable to that required by the city of Szombathely.

The telecom operator invested more than HUF 50 million in the temporary network expansion, increasing overall capacity by 20% compared with last year and 5G capacity by 40%.

Over the full festival period, including the minus-one and zero days between Aug. 9 and 16, users generated 53.8 TB of data traffic on Yettel’s network, 14% more than during last year’s festival.

Traffic Peaks During First Days

Mobile data traffic peaked on Aug. 13, when Lewis Capaldi and Florence + The Machine were among the acts performing on the main stage.

Visitors spent the most time making calls on Aug. 11, the day Zara Larsson and Sombr performed, while SMS traffic peaked on Aug. 12, when Twenty One Pilots and Kispál és a Borz were on the program.

Hourly traffic patterns also reflected the rhythm of the festival. The most time spent on calls was recorded between 8 p.m. and 9 p.m. on Aug. 11, while SMS traffic peaked between 9 p.m. and 10 p.m. Data use reached its highest hourly level shortly after midnight, between midnight and 1 a.m. on Aug. 12.

Roaming Visitors Arrive From 66 Countries

Nearly half of this year’s festival audience came from abroad. Roaming users from 66 countries connected to Yettel’s network during the event.

Dutch visitors generated the most mobile data traffic among foreign users, while Italians recorded the highest volume of voice calls. French users ranked second for data consumption, followed by Romanians, while Romanians ranked second for call minutes, followed by the French.

Yettel also recorded roaming traffic from visitors from countries including Uzbekistan, Indonesia, Kenya and Chile.

The 53.8 TB of total data traffic represented several hundred times the volume recorded during a comparable average period before the festival, between June 29 and July 5.

Yettel, the festival’s official telecommunications partner, said the 20% year-over-year increase in temporary network capacity proved justified as mobile data traffic rose 14%.

The company also provided free Wi-Fi and mobile charging points at the festival.