The caller with the number +6464221604964 appears to be a telemarketer or a scammer, as they consistently call without leaving messages. Upon callback, the number is unreachable, suggesting it might be a spoofed number. This behavior is common among individuals or organizations attempting to avoid detection or confrontation. The lack of voicemails or meaningful interactions implies that the caller's intent may not be genuine or customer-centric. Overall, caution is advised when dealing with such numbers, and it's recommended to ignore or block them to avoid potential phishing attempts or other forms of harassment.
The line rings without leaving a message, and a callback attempt returns a "number not reachable" notice.