# eSIM An eSIM is a programmable subscriber-identity module embedded in a device. The [[Embedded Identity Document|EID]] identifies its secure hardware, while an [[Integrated Circuit Card Identifier|ICCID]] identifies a carrier profile or SIM identity loaded for service. ## Source [[Scanned_20260730-1230#PDF Page 13|PDF page 13]] and [[Scanned_20260730-1230#PDF Page 14|page 14]] preserve EIDs and ICCIDs for two iPhone SE units. The notebook does not establish whether either EID was activated for service. ## Scanned_20260730-2016 overlay PDF pages 19, 29, and 42 of [[Scanned_20260730-2016]] extend subscriber identity into a 2022 multi-carrier device map involving Visible, Google Fi, Mint Mobile, iPhone, Pixel, and hotspot service. The source preserves carrier and recovery relationships while redacting telephone numbers and credentials. No page independently establishes whether a particular line used physical SIM or eSIM, which device held the active profile, or the current subscriber assignment.