To give you the best speed and coverage, our eSIM connects to Bulgaria’s premium Tier-1 networks, typically A1, Yettel (formerly Telenor), or Vivacom. This ensures you get the fastest available 4G/LTE (and 5G) speeds, whether you are in Sofia, Plovdiv, or Varna.
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Which networks does Bulgaria eSIM use? (A1, Yettel, Vivacom)
Updated April 22, 2026
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