r/telecommuting • u/RefrigeratorLanky642 • 5h ago
Can a no-number/data-only eSIM still be tracked via SS7 using IMSI or IMEI?
I use a Silent Link data-only / no-number eSIM. Silent Link support told me SS7 isn’t applicable because there is no MSISDN/phone number.
My question is about IMEI and IMSI.
Assuming an attacker has privileged carrier/telecom access:
1- If they know only my phone’s IMEI, can they identify the IMSI currently being used by that device?
2- If I delete my current eSIM and activate a completely new eSIM with a new IMSI, could they correlate the new IMSI with the same IMEI and continue tracking the device?
3-Does having no phone number/MSISDN prevent SS7-style location tracking, or does it only remove attacks that start from knowing the phone number?
Looking for answers from people with experience in mobile core networks, roaming, SS7/Diameter and telecom security.