- Suspicious
Community report for 04 6651 9964 (0466519964): One contributor answered and the caller hung up immediately. Mobile number allocated to Optus.
Silent Call Report for 04 6651 9964
One contributor has reported a silent call from 04 6651 9964 (also written as 0466519964). The caller answered but disconnected immediately when the recipient picked up, leaving no message or indication of intent. This pattern is consistent with automated callback scams or number harvesting attempts where callers test whether a number is active.
The number is allocated to Optus Mobile, suggesting it originated from a legitimate mobile provider, though this does not rule out spoofing or malicious use of the service.
What Happened on This Call
The contributor who called back or answered 04 6651 9964 reported that the caller hung up straight away. No conversation took place, no voicemail was left, and the caller did not ring back. This type of silent call behaviour is a common tactic in callback scams where callers establish that a number is monitored by a real person, then use that information to launch more targeted fraud attempts later.
Why Silent Calls Happen
Silent calls from numbers like 0466519964 typically serve one of two purposes: either automated dialling systems testing number validity, or deliberate callback scams designed to provoke a return call that incurs charges or exposes you to a scammer. The fact that 04 6651 9964 disconnected immediately suggests automated behaviour rather than a confused wrong number.
What to Do If You Receive a Call from 04 6651 9964
If 04 6651 9964 calls you:
- Do not: Return the call, as this confirms your number is active and may trigger more contact
- Do: Let it go to voicemail and block the number immediately using your phone's built-in tools
- Do: Be cautious if you receive follow-up calls claiming to be from banks, government agencies, or utilities - these often follow silent call testing
- Do: Check your phone bill for any unexpected charges if you did call back
How to Report 04 6651 9964
If you receive unwanted or suspicious calls from 04 6651 9964, you can report the number to Australian authorities:
- ACMA (Australian Communications and Media Authority): Report silent calls, callback scams, and unwanted telemarketing at acma.gov.au. The ACMA tracks patterns across multiple reports.
- Do Not Call Register: Register your number at donotcall.gov.au to reduce unwanted marketing calls, though this does not prevent scammers
- Scamwatch: If the call was part of a suspected scam attempt, report details at scamwatch.gov.au
- Reverseau: Share your experience with 0466519964 to help other Australians identify this number. Community reports from contributors like you build the intelligence needed to protect others.
Understanding Your Risk
A single silent call from 04 6651 9964 may be coincidental, but repeated calls warrant precaution. If you receive multiple silent calls from 0466519964 or similar numbers, this suggests systematic number harvesting. Block 04 6651 9964 and monitor your accounts for suspicious activity, particularly if you have recently given your number to service providers or made online purchases.
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WRITE A REVIEWFrequently Asked Questions
Why did the caller from 04 6651 9964 hang up immediately?
Silent calls like the one from 0466519964 are typically generated by automated systems that dial large numbers of random or harvested phone numbers to test which ones are active and monitored by real people. Once 04 6651 9964 confirmed your number was answered, the system disconnected. This information is later sold to scammers or used to launch targeted follow-up attacks.
Should I call back 04 6651 9964?
No. Do not return the call to 0466519964. Calling back confirms to the caller's system that your number is active and monitored, which increases the likelihood of follow-up scam attempts. It may also incur unexpected charges if the number is set up to generate premium-rate calls.
Is 04 6651 9964 definitely a scam?
The single report for 0466519964 shows silent call behaviour, which is a common scam tactic, but one incident alone is not conclusive. However, silent calls from 04 6651 9964 serve no legitimate purpose. Even if not directly scam-related, the caller is clearly testing your number for harvesting purposes. Block it and remain alert for follow-up contact.
Can I block 04 6651 9964 on my phone?
Yes. On iPhone, open the contact or call history for 0466519964, scroll down, and tap 'Block this Caller'. On Android, open the call log, long-press 04 6651 9964, and select 'Block number'. You can also contact your provider (Optus, in this case) to request carrier-level blocking if the number continues to call.
What should I do if 04 6651 9964 calls again?
If 0466519964 rings multiple times, do not answer. Let it go to voicemail. If calls persist after blocking, report the number to ACMA at acma.gov.au and to Reverseau to help other contributors identify the pattern. Save evidence of the calls (timestamps, frequency) for your report.
Could 04 6651 9964 be a legitimate Optus number that was spoofed?
Possibly. The number is allocated to Optus Mobile, but scammers regularly spoof legitimate provider numbers to appear trustworthy. Whether 0466519964 is genuine or spoofed, the silent call behaviour indicates misuse. Contact Optus directly at 133 937 (not by returning this call) if you are concerned about account security.