Slovakian telco Swan, which operates under the 4ka brand, has warned its customers it will terminate its 3G service early next year.

Swan/4ka, which offers fixed and mobile consumer services in Slovakia, said customers will instead have 4G coverage.

Feature: What the 2G and 3G shutoff means for 5G

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The telco doesn't have its own 3G infrastructure. It offers the service via a roaming agreement with Orange Slovakia - but Orange is set to switch off its 3G network in the country on January 1 to focus on 4G and 5G.

Orange currently covers around 97 percent of the population with 4G, while the 4ka LTE network reaches 87 percent.

Another Slovakian telco, Slovak Telecom, started its 3G shutdown last month, and is on course to terminate the service nationwide by the end of the year.

Elsewhere, Telia Finland kicked off its 3G network switch-off in September, while its Danish and Lithuanian businesses have already retired their respective 3G networks.

In the UK, EE confirmed it will begin its 3G switch-off in January 2024, while Virgin Media O2 will switch off its 3G network in 2025.