We highly recommend activating your eSIMAdventures plan before your flight or upon landing, but definitely before reaching US Customs. Long queues at US Customs and Border Protection (CBP) are common, and having immediate internet access can be a lifesaver. It allows you to communicate with family about your arrival, access travel documents stored in the cloud, or even utilize apps like Mobile Passport Control (MPC) to potentially expedite your entry process. Being connected from the moment you land provides peace of mind and efficiency.
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Is it advisable to install my eSIMAdventures plan prior to arriving at US Customs and Border Protection (CBP)?
Updated April 22, 2026
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