This specific CoreESIM plan is geo-restricted to the Bailiwick of Jersey. The Bailiwick of Guernsey, while geographically proximate, operates under a distinct telecommunications jurisdiction with separate network providers. Travelers planning to visit Guernsey in addition to Jersey will require a separate eSIM plan tailored for the Guernsey market or a regional option that explicitly includes both Crown Dependencies. CoreESIM offers precise coverage specifications for each territory.
HELP CENTER
Does this CoreESIM function in <strong>Guernsey</strong>, or exclusively in <strong>Jersey</strong>?
Updated April 22, 2026
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