- Spam
Community report for 0423 789 529 (0423789529): Robocall making repeated calls with no caller ID, up to 30 calls in a single day.
Robocall Reports for 0423 789 529
One contributor has reported aggressive robocall activity from 0423 789 529 (also written as 0423789529). The calls display no caller ID and the contributor received up to 30 calls in a single day after initially answering once. When the contributor picked up on the first call, the caller immediately hung up, a common pattern with robocall systems testing active numbers.
The mobile number, allocated to Optus, has triggered multiple back-to-back calls across weekend and weekday hours. After blocking 0423789529 following the initial Saturday and Sunday morning calls, the contributor continued receiving calls, indicating either call spoofing or multiple related numbers being used from the same operation.
Call Patterns for 0423 789 529
The activity reported for 0423 789 529 shows persistence across different days and times. The contributor documented calls on Saturday morning, four calls on Sunday morning, and then an escalation to approximately 30 calls within a single subsequent day. The lack of caller ID on all calls strongly suggests automated dialling rather than a live operator.
Robocalls to 0423789529 of this volume and frequency are characteristic of either telemarketing operations using auto-diallers or potential scam infrastructure attempting to identify active numbers for follow-up campaigns. The immediate hang-up when the contributor answered suggests the system detected a live person but had no prepared message or operator ready.
What to Do If You Receive a Call from 0423 789 529
If 0423 789 529 calls you:
- Do not: Answer unknown calls with no caller ID, return the call, or engage if someone does answer
- Do: Let the call go to voicemail, block the number immediately in your phone settings, and do not unblock it if calls continue from similar numbers
- Do: Be aware that if you answer once, the robocall system may mark your number as active and increase call frequency
- Do: Report repeated calls from 0423789529 to your mobile provider (Optus in this case) - they can escalate to carrier-level blocking
Understanding Robocall Callback Risks
Numbers like 0423 789 529 that engage in robocall campaigns often use spoofed caller ID. Returning a call to 0423789529 or similar numbers may connect you to premium-rate services, scam operators, or confirmation systems that flag your number for more aggressive follow-up. The best response is silence and blocking.
How to Report 0423 789 529
If you receive robocalls from 0423 789 529 or 0423789529:
- Report to the Australian Communications and Media Authority (ACMA) at acma.gov.au - they track robocall patterns and can take enforcement action against repeat offenders
- Register your number with the Do Not Call Register at donotcall.gov.au to reduce telemarketing calls, though robocalls often ignore this list
- Contact Optus directly if the calls continue - as the allocated provider, they may be able to block at the network level
- Report the number on Reverseau to help other Australians identify this activity and protect the community
Help others by sharing your experience with 0423 789 529!
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What Our Users Reviewed
called 4 times Sunday morning, once Saturday, no caller ID, picked up once and they hung up, then blocked but got up to 30 calls today
Help others by sharing your experience with 0423 789 529!
WRITE A REVIEWFrequently Asked Questions
What is a robocall and why did 0423 789 529 hang up when I answered?
A robocall uses automated dialling systems to make large volumes of calls rapidly. When 0423 789 529 calls hang up immediately after you answer, it usually means the auto-dialler system detected a live person but had no operator or pre-recorded message queued. The system was testing whether your number is active, potentially for a follow-up scam or telemarketing campaign. Do not answer calls from 0423789529 if you recognise the pattern.
Why did blocking 0423789529 not stop the calls?
Robocall operations often use call spoofing technology to mask their true number or cycle through multiple phone lines. Even though the contributor blocked 0423 789 529, the same operation may have used related numbers or spoofed the Optus number differently on subsequent calls. Blocking individual numbers is limited when dealing with robocall systems - contacting your provider (Optus) for network-level blocking is more effective.
Is 0423 789 529 a scam or just telemarketing?
The robocall behaviour from 0423789529 is characteristic of either aggressive telemarketing or potential scam infrastructure. The immediate hang-up and no caller ID are red flags. Robocalls that escalate to 30+ calls per day are rarely legitimate marketing. Whether it's a scam or telemarketing, you should block 0423 789 529 and report it to ACMA.
Can I report 0423789529 to my mobile provider?
Yes. Since 0423 789 529 is allocated to Optus, contact Optus customer service and report the robocall activity. Provide details of the dates, times, and number of calls from 0423789529. Network providers can escalate aggressive robocall sources to carrier-level filtering and may block the number before it reaches other customers.
Should I worry about answering one call from 0423 789 529?
The contributor who answered once from 0423789529 experienced a hang-up followed by escalated calling (up to 30 calls per day). This suggests answering confirmed their number was active. Going forward, avoid answering calls from 0423 789 529 or numbers with no caller ID. Your silence is better than engagement - it doesn't confirm your number to the robocall system.
What should I do if 0423789529 calls continue after blocking?
If calls from 0423 789 529 persist after blocking, the operation may be using spoofed numbers or call cycling. Report the activity to ACMA at acma.gov.au, contact Optus for network-level intervention, and register with the Do Not Call Register at donotcall.gov.au. Document call dates and times to support your ACMA report. Continue blocking each variation of 0423789529 that appears.