Yes, CoreESIM offers a significantly streamlined experience compared to acquiring a local physical SIM card at Sofia (SOF) Airport. Local providers like A1, Yettel, or Vivacom require travelers to locate a kiosk, queue, and undergo a mandatory passport registration mandated by Bulgarian law. CoreESIM is a fully digital solution, requiring no physical interaction, no queues, and no passport verification, allowing for immediate activation upon arrival and bypassing bureaucratic processes.
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Is CoreESIM simpler than purchasing a local SIM at Sofia (SOF) Airport, and is ID required?
Updated April 22, 2026
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