AlpineSIM eSIM Data Plans for Guernsey

AlpineSIM does not provide a truly unlimited data eSIM for Guernsey. All of its “Unlimited”‑named plans for the island are actually capped at a daily quota of 500MB or 1GB and are marketed as Europe‑wide plans that include Guernsey coverage.

AlpineSIM offers several fixed data plans for Guernsey that give larger, unthrottled allowances: a 10GB plan valid for 30 days costing $26.90 USD, a 20GB plan valid for 30 days costing $38.83 USD, and a 50GB plan valid for 180 days costing $94.64 USD. Choosing one of these fixed data options can be a more cost‑effective choice for travelers who need substantial data on the island.

AlpineSIM does not sell a Guernsey eSIM that includes a phone number or SMS capability. The provider offers only data‑only eSIMs for Guernsey. Travelers who need to communicate while abroad can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, which provide voice and messaging without the need for a local phone number or SMS service.

AlpineSIM lists 5 single‑country data plans and 32 multi‑country plans that cover Guernsey. The pricing for these options ranges from about $2.33 to $166.83, while the data caps vary from 500 MB up to 50 GB over validity periods that can be as short as one day or as long as 180 days. Some plans apply a daily data cap, delivering a fixed amount each day of the validity, whereas others offer a single, fixed amount that can be used at any point during the period. Many of the plans also allow tethering, enabling the data to be shared with other devices.