Frequent, unanswered calls from this number signal high-risk behavior, likely tied to automated harassment or scam attempts. Callbacks leading to 'disconnected' messages are a common tactic scammers use to evade tracing and build false urgency. Block the number immediately on your phone to stop the barrage—most devices let you do this via settings or apps like Truecaller. Report it to your carrier and authorities like the ACCC in Australia for broader protection. Enable call screening features to filter unknowns, and never engage with unsolicited calls; hang up and verify independently if needed. Stay vigilant to avoid escalating annoyances into potential threats.
Between November 9 and 14, 2018 I received a call from a strange number; returning the call produced a message stating, "Optus indicates the number is disconnected."
I receive multiple calls daily that go unanswered, and returning them results in a disconnected line.