Abstract: Telephone numbers that are associated with robocalls or scam calls can be automatically identified by a telephone network operator. The identified telephone numbers may be blocked from placing phone calls on the telephone network.

Abstract: Methods and systems of processing call detail records are disclosed. A method of processing call detail records (CDRs) comprises: receiving a plurality of CDRs, each of the CDRs comprising a calling party number, a callee number, a gap value, a gap type value, a start time, an end time, a ringing time, and a conversation time; determining a dialed callee number for each of the CDRs; identifying at least two CDRs associated with a call event based on one or more similarity thresholds being met between the at least two CDRs; determining a maximum conversation time among all CDRs associated with the call event; and generating a processed CDR for the call event comprising at least the calling party number, the dialed callee number, and the maximum conversation time.

Abstract: Telephone numbers that are associated with robocalls or scam calls can be automatically identified by a telephone network operator. The identified telephone numbers may be blocked from placing phone calls on the telephone network.

Abstract: Telephone numbers that are associated with robocalls or scam calls can be automatically identified by a telephone network operator. The identified telephone numbers may be blocked from placing phone calls on the telephone network.