iRoamly eSIM Data Plans for Guam

iRoamly does not offer a truly unlimited high‑speed data plan for Guam. All plans that carry the word “Unlimited” in their name actually have a data cap of 500GB; once that threshold is reached, the connection speed is reduced to 10, 000 kbps.

If a larger data allocation is acceptable, iRoamly provides fixed‑data eSIMs that cover Guam, such as the 500GB plan valid for 30 days at $209.00 USD. These fixed plans may be more cost‑effective for travelers who do not need unlimited high‑speed data, but they will experience a speed drop after the 500GB limit is reached.

iRoamly does not offer a Guam eSIM that includes a phone number or SMS capability. Only data‑only eSIM plans are available for Guam.

Travelers who need to make calls or send messages can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, which do not require a local phone number or SMS service.

iRoamly offers 18 single‑country plans that cover Guam and an additional 114 multi‑country plans that also include Guam in their coverage. The plans run from free to about $257, with data caps ranging from 500 MB up to 500 GB and validity periods from 1 to 365 days. Some plans feature a daily data cap, limiting how much data can be used each day, while others have a fixed total data allocation that is available for the entire validity period.