A technique for near real-time reporting of telephone number usage to a computer is disclosed. According to the technique, signaling protocol data is collected for telephone calls that involve telephone numbers associated with the user. The signaling protocol data is decoded and call information records (CIRs) are generated from the decoded signaling data. The CIRs contain information about calls associated with the telephone numbers. The CIRs are used to generate a report which is made available to the user.