SimOptions does not offer any Guam eSIM that includes a local phone number or SMS capability. All eSIM plans available for Guam from this provider are data‑only, so travelers can use the internet connection to access VoIP services such as WhatsApp, Telegram, or iMessage. However, some destinations may block or restrict specific apps or VoIP services, so users should verify that the applications they need are accessible in Guam before purchasing a plan.