Is this Mayotte EastESIM valid for the neighboring Comoros Islands?

No, this specific EastESIM plan is designed exclusively for use within Mayotte (France). Although the Comoros Islands are geographically close, they are a separate nation with distinct telecommunication networks. If your travel plans extend to other islands in the archipelago, such as Grande Comore or Anjouan, your EastESIM for Mayotte will not provide coverage there. For multi-country journeys in the Indian Ocean, we recommend exploring our broader regional plans or purchasing a separate eSIM for each country.