MobiMatter does not currently offer any French Guiana eSIM plans that include a phone number or SMS capability. All available eSIMs from this provider for French Guiana are data‑only.
Travelers who need voice or messaging can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, some destinations may block or restrict specific apps or services, so it is advisable to confirm the accessibility of the apps you depend on in French Guiana before buying a plan.