Why do I need a WestESIM in the USVI if I already have a US carrier like AT&T or T-Mobile?

Using WestESIM in the U.S. Virgin Islands is a strategic move to prevent unexpected roaming charges. While the USVI is a U.S. territory, its proximity to the British Virgin Islands (a foreign country) and mountainous terrain can cause your phone to inadvertently connect to a BVI cell tower. This 'accidental roaming' can trigger significant international fees from your domestic carrier. WestESIM ensures you remain on the local U.S. networks, providing reliable connectivity without the risk of costly surprises, whether you are exploring St. Thomas or relaxing on St. John.