Zwitchy does not offer eSIM plans that include a phone number or SMS capability for Guam. Their Guam eSIM products are data‑only, providing high‑speed internet without local voice or text services.
Travelers who need to make calls or send messages can use VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection. However, some destinations may block or restrict certain messaging services, so it is advisable to confirm that the apps you rely on are accessible in Guam before purchasing a Zwitchy eSIM.