Cellular Carrier Info (carrier.plist)
Location
WirelessDomain/Library/Preferences/carrier.plistDescription
Property list file containing cellular carrier configuration information including the carrier name, MCC (Mobile Country Code), MNC (Mobile Network Code), carrier bundle version, SIM ICCID, and supported network features. On dual-SIM devices, separate carrier configurations exist for each SIM slot.
Forensic Value
Carrier configuration identifies the cellular provider and SIM card associated with the device, which is essential for correlating with carrier records obtained via legal process. The MCC and MNC codes identify the country and network operator, establishing the cellular network the device was registered on. SIM ICCID values uniquely identify the physical SIM card and can be matched against carrier subscriber records. On dual-SIM devices, the presence of two carrier configurations may reveal a secondary phone line used for compartmentalized communications. Changes in carrier configuration can indicate SIM swapping activity.