Is there a possibility of "reverse" billing. That is, knowing the location and date, determine the phone numbers that were in this place and at this time?

Question

Billing systems

The situation is the following. For example, a crime was committed (for example, theft). The place and time interval of the crime is known (for example, a 10-hour interval). Is there any way, using the data of mobile operators, to determine which phone numbers were in this place at a given period of time and how long they were there? If so, do the police use this method?

Answer 1

It is quite obvious that the operator has information about the connection of the subscriber device with the base station. Roughly speaking - IMEI + CELL ID + DATETIME
According to this information, it is technically possible to select both the CELL_ID list for a specific IMEI and the IMEI list for specific CELL_IDs in a given period of time.
Does the operator have programming interfaces for this?
Most likely yes
Do they use them?
Probably yes.

Answer 2

The opportunity is there, but not for everyone.
This opportunity is closed for you.