Use of embedded subscriber identity modules, eSIM, profiles: compiling a list of geographical locations for a predetermined period in future, and communicating wirelessly the list and the predetermined period to a service provider before the predetermined period; detecting a home wireless network, and downloading wirelessly a set of eSIM profiles into one or more eSIM chips of a mobile from the service provider before the predetermined period; using the set of the eSIM profiles for wireless service in one or more geographical locations of the list during the predetermined period; and detecting the home wireless network after the predetermined period, and removing the set of the eSIM profiles from the one or more eSIM chips.