yaySIM does not provide an eSIM for the Netherlands Antilles that includes a phone number or SMS capability. The provider offers only data‑only eSIM plans for that destination. Travelers who need voice or messaging can use popular VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, but they should verify that these services are accessible in the Netherlands Antilles before purchasing, as some destinations may block or restrict specific apps or VoIP services.