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Community report for 04 8394 9870 (0483949870): Optus mobile number leaving silent voicemails with repeated calls.
Silent Call Reports for 04 8394 9870
One contributor has reported repeated silent calls from 04 8394 9870 (also written as 0483949870), an Optus mobile number. The caller leaves voicemails with no audio or message content, then contacts again multiple times. This pattern is characteristic of callback scams or automated dialling systems testing for active numbers.
What Callers from 04 8394 9870 Do
The contributor who received calls from 0483949870 described voicemails arriving with nothing audible on the message. Rather than a single incident, the report indicates repeated contact from 04 8394 9870, suggesting the caller is cycling through numbers or following an automated dialling sequence.
Silent calls followed by repeated attempts are commonly used by scammers testing whether a number is monitored by someone, or baiting recipients into returning the call. When you call back a number used for this tactic, you may be connected to an operator running investment, tax, or tech support scams.
Why Silent Calls Matter
Silent calls from 04 8394 9870 serve a specific purpose in scam operations. By leaving voicemails with no message, callers can later claim you returned their call first, establishing false familiarity. The repeated contact pattern from 0483949870 increases the likelihood you'll eventually answer or call back out of curiosity or concern.
What to Do If You Receive a Call from 04 8394 9870
If 04 8394 9870 calls you:
- Do not: Return the call, answer if the number is unknown, or engage with any follow-up contact
- Do: Let calls go to voicemail, block the number immediately, and delete any voicemails without listening if they contain no message
- Do: Note the date and time of repeated calls for reporting purposes
What to Do If You Receive an SMS from 04 8394 9870
While this report involves voicemails, silent callers sometimes switch to SMS after unsuccessful call attempts. If you receive a text from 0483949870:
- Do not: Click any links, reply to the message, or call the number
- Do: Report the SMS as spam by forwarding it to 0429 999 888
- Do: Block the number in your phone settings
How to Report 04 8394 9870
If you receive silent calls or callback scam attempts from 04 8394 9870, report your experience to help protect other Australians:
- Report to the Australian Communications and Media Authority (ACMA) at acma.gov.au
- Log the incident on Scamwatch at scamwatch.gov.au with details of when the calls occurred
- If you receive callbacks after silent calls, report to ReportCyber at cyber.gov.au
- Add 0483949870 to your phone's block list and report to your mobile provider (Optus)
- Share your experience on Reverseau to alert other Australians
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What Our Users Reviewed
Voicemail with nothing there. Called a lot of times.
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WRITE A REVIEWFrequently Asked Questions
What is a silent call scam?
Silent calls like those from 04 8394 9870 are used to test whether a number belongs to an active person. Scammers use this tactic to verify phone numbers before launching investment, tax, or tech support scams. The repeated calls from 0483949870 suggest an automated system cycling through contact lists.
Should I call back 04 8394 9870 if it called me?
No. Do not call back 04 8394 9870 or 0483949870 under any circumstances. Returning the call is exactly what scammers want - it confirms your number is active and monitored. The caller can then claim you initiated contact, making their follow-up pitch more convincing.
Why does 0483949870 keep calling multiple times?
Repeated calls from 04 8394 9870 indicate either an automated dialling system testing numbers or a scammer following up after an unanswered call. The persistence increases the chance you'll eventually answer or return the call out of frustration or curiosity, which is the goal.
Is 04 8394 9870 a legitimate Optus number?
While 0483949870 is formatted as an Optus mobile number, this doesn't confirm legitimacy. Scammers regularly use legitimate-looking mobile numbers, and some may spoof or clone real numbers. The silent voicemail pattern from 04 8394 9870 is a major red flag that this is not a legitimate business contact.
What should I do if I already called back 04 8394 9870?
If you returned a call to 0483949870 but didn't engage with any sales pitch or share personal information, block the number and monitor your accounts for suspicious activity. If the caller did get through to you after calling from 04 8394 9870, remain cautious of any follow-up contact and verify any claims independently via official channels.
How do I report silent calls from 04 8394 9870 to the authorities?
Report silent calls from 0483949870 to ACMA (acma.gov.au) with the date, time, and number of calls. Also log details on Scamwatch (scamwatch.gov.au). If the calls are harassing or you have reason to believe it's part of a larger scam, contact ReportCyber (cyber.gov.au). Block 04 8394 9870 on your phone and notify Optus of the suspicious activity.