Is Guernsey included in standard UK or EU roaming agreements when using my DataESIM, or is it a separate zone?

Guernsey operates as an independent telecom jurisdiction, distinct from both the UK and the European Union. Consequently, standard 'Roam Like at Home' (RLAH) provisions for EU SIMs and typical UK domestic plans do not apply here. DataESIM treats Guernsey as a unique territory, requiring a dedicated plan to ensure optimal connectivity. Attempting to use a non-Guernsey-specific DataESIM plan will likely result in a lack of service or prohibitively expensive out-of-bundle charges. Always verify your DataESIM plan's regional validity for seamless operation.