- Uncertain
- Spam
04 8500 3023 (0485003023): 2 reports of silent calls and missed messages from Optus mobile. Contributors report dead air and AI voice scam tactics.
Silent Call and Robocall Reports for 04 8500 3023
Two contributors have reported activity from 04 8500 3023 (also written as 0485003023), an Optus mobile number flagged for silent calls and robocall behaviour. One contributor answered the call from 0485003023 and encountered only dead air, deliberately staying silent to avoid triggering any automated voice response. A separate report describes a missed call from 04 8500 3023 with no voicemail left behind, a common pattern in robocall campaigns.
The tactics reported align with known silent call and AI voice scam methods. These calls often test whether a number is active and monitored, with the goal of adding confirmed contacts to scam call lists for later targeting with more sophisticated automated voice systems or impersonation attempts.
What Callers from 04 8500 3023 Do
When answering 04 8500 3023, one contributor encountered complete silence - no greeting, no prompt, no voice response. The caller made no attempt to introduce themselves or leave a message. This silent response is consistent with automated systems designed to verify active phone numbers rather than conduct a conversation or sales pitch.
The second report about 0485003023 involved a missed call with no voicemail. The contributor received the incoming notification but chose not to answer, and no follow-up message was left. This pattern of ringing without voicemail is typical of robocall systems testing for answer rates rather than attempting genuine contact.
Report Timing and Pattern
Both reports came in within three weeks of each other, with the answered call occurring on 8 January and the missed call reported on 1 February. One contributor answered when calling 04 8500 3023, while the other allowed it to go to missed calls. Neither report indicates repeated calling from this number, though the two separate incidents suggest the number may be in active use as part of a broader robocall operation.
What to Do If You Receive a Call from 04 8500 3023
If 04 8500 3023 calls you:
- Do not: Answer if you don't recognise the number, or engage if dead air persists after you answer
- Do not: Speak, confirm your name, or respond to any automated prompts - this confirms your number is active
- Do: Let the call go to voicemail - legitimate callers will leave a message
- Do: Hang up immediately if you answer and hear only silence for more than a few seconds
- Do: Block 0485003023 after the first call if it repeats
- Do: Be aware that silent calls may precede more targeted scam attempts from other numbers in coming weeks
How to Report 04 8500 3023
If you've received calls from 04 8500 3023 or 0485003023, report the activity to the Australian Communications and Media Authority (ACMA) at acma.gov.au. ACMA tracks patterns of unwanted calls and can investigate robocall campaigns.
- Report silent calls and robocalls directly to ACMA - these often violate the Telecommunications Act
- Contact Optus directly to report the mobile number (0485003023) as potentially compromised or misused, even if the account holder is legitimate
- Use the Do Not Call Register at donotcall.gov.au to register your number if you haven't already - this provides additional protection and documentation
- Share your experience on Reverseau to help other Australians identify patterns from this number
Help others by sharing your experience with 0485 003 023!
WRITE A REVIEWRatings Distribution
What Our Users Reviewed
Rang but no message left
Answered and just dead air, kept mouth shut to avoid AI voice scam
Help others by sharing your experience with 0485 003 023!
WRITE A REVIEWFrequently Asked Questions
Should I answer if 04 8500 3023 calls me?
No. The reports about 0485003023 show silent calls with dead air and no message left - signs of an automated robocall system. Let it go to voicemail. Legitimate callers will always leave a message. If you do answer 04 8500 3023 accidentally and hear silence, hang up immediately without speaking.
Why do robocalls from 04 8500 3023 stay silent?
Silent calls from 0485003023 are typically used by automated systems to verify your number is active and monitored. When you speak or respond to silence, it signals the scammers that your number is worth targeting for future scam attempts. This is why one contributor deliberately stayed quiet when 04 8500 3023 connected.
Is 04 8500 3023 a real Optus number?
0485003023 is registered as an Optus mobile number, but that does not mean it's being used legitimately by the account holder. Numbers can be spoofed, stolen, or compromised. The fact that it's appearing in Reverseau reports for silent calls and robocalls suggests either the account is misused or the caller is spoofing this Optus number to appear local.
What should I do if 04 8500 3023 keeps calling?
If 0485003023 calls repeatedly, block the number on your phone. Then report it to ACMA at acma.gov.au and the Do Not Call Register at donotcall.gov.au. One contributor from 04 8500 3023 allowed it to go to voicemail - if it becomes a pattern, blocking is appropriate.
Could 04 8500 3023 be testing my number for a scam?
Yes, that is a strong possibility. Silent calls from 0485003023 are often used to verify that phone numbers are active before adding them to lists for targeted scam campaigns. Contributing contributor noted that they stayed silent when 04 8500 3023 connected to avoid triggering an automated AI voice system. This is a valid defence against being marked as a live target.
How do I report 04 8500 3023 to ACMA?
Go to acma.gov.au and use their complaint form to report unwanted calls from 0485003023. Provide the date, time, and type of call (silent call or robocall) along with the number 04 8500 3023. ACMA uses these reports to identify and investigate patterns of robocall activity across Australia.