AT&T is the predominant cellular provider in the Virgin Islands and is generally available throughout St. John. Sprint is also an available provider, however, this service will generally only be available in the Cruz Bay area on St. John. Some other cellular services work in the Virgin Islands, however roaming charges are likely. Check with your provider before coming to the islands for details on your plan. Be cautious when using any cellular service when in proximity to the BVI (i.e., the North shore beaches on St. John) or when a BVI signal is appearing on your phone. Unless you have an international calling plan, most stateside cellular providers do not have reciprocity agreements with the BVI and as such, you may incur international roaming charges for calls originated or received by a BVI cell system.