- Spam
- Suspicious
- Scam
- Uncertain
- Legit
03 8804 5809 (0388045809) Melbourne Optus number with 7 community reports. Silent calls hanging up immediately, estate agent spam, and survey calls reported.
Silent Calls and Nuisance Reports for 03 8804 5809
Community reports for 03 8804 5809 (also written as 0388045809) describe a pattern of silent calls that hang up within seconds of being answered. One contributor reported receiving calls from different number variations, with the caller disconnecting as soon as the call was picked up. This Optus-allocated Melbourne local service number has generated seven reports spanning various categories, suggesting inconsistent caller behaviour or potentially multiple parties using the same number.
The 0388045809 reports indicate a mix of unwanted contact types, though silent calls with immediate hang-ups represent the most distinctive pattern. Several contributors noted they either let calls go to voicemail or opted not to answer after learning about this number through community reports.
What Callers from 03 8804 5809 Do
Silent calls dominate the reported behaviour for 03 8804 5809. One contributor specifically noted receiving calls from different variations of the number, with the caller hanging up immediately upon answer. This suggests either automated dialling with poor connection handling or deliberate call-and-hang tactics.
Beyond silent calls, contributors to Reverseau have reported contact from 0388045809 for estate agent sales pitches. One caller identified themselves as an estate agent, continuing to pitch property services until the recipient stated they had no interest in buying or selling, at which point the call ended.
Survey-related calls have also been attributed to 03 8804 5809, with one report mentioning an Australian Research Centre calling about cost of living statistics via phone survey. When a recipient called the number back using ID suppression, the call disconnected and the number showed as not in service, raising questions about call origin masking.
Report Patterns and Timing
The seven community reports for 03 8804 5809 span from March 2024 to February 2026, indicating persistent activity over nearly two years. Call patterns show a mix of answered calls, missed calls, and voicemails, with no clear clustering in timing that would suggest a specific campaign window.
One contributor reported multiple calls on different occasions, noting variation in the number being dialled (suggesting either call spoofing or multiple callers). Several recipients chose not to answer 03 8804 5809 after reading other community reports, indicating that awareness of this number's activity influences call-answering behaviour.
What to Do If You Receive a Call from 03 8804 5809
If 03 8804 5809 calls you:
- Do not: Return the call, as one contributor's callback attempt to 0388045809 resulted in disconnection and a "number not in service" message
- Do: Let unknown calls go to voicemail, which helps confirm whether a genuine voicemail is left
- Do: Block the number on your phone to prevent repeated calls
- Do: Register with the Do Not Call Register at donotcall.gov.au if you wish to reduce telemarketing calls
- Do: Note the exact time and date of any call for reporting purposes
How to Report 03 8804 5809
If you receive unwanted calls from 03 8804 5809 or 0388045809, you can report your experience to Australian regulatory bodies and the Reverseau community:
- ACMA (Australian Communications and Media Authority): Report unwanted calls at acma.gov.au. ACMA manages the Do Not Call Register and investigates telecommunications complaints.
- Scamwatch: If you believe the call was a scam attempt, report it at scamwatch.gov.au (operated by the ACCC).
- Do Not Call Register: Register your number at donotcall.gov.au to opt out of telemarketing calls (though this may not stop all unwanted contact).
- Reverseau: Add your own report about 03 8804 5809 to help other Australians identify the number. Community contributions build the intelligence that helps people recognise unwanted callers.
Help others by sharing your experience with (03) 8804 5809!
WRITE A REVIEWRatings Distribution
What Our Users Reviewed
Calls from different number variations, hangs up soon as I pick up
Let it go to voicemail, heard from others about this number
Dodgy scam from Melbourne number
Didn't answer, read other reports about the number and glad I didn't pick up
Estate agent called, hung up when I said not interested in buying or selling
Got a call no voicemail, called back with ID off and it disconnected, number not in service
Australian Research Centre calling about cost of living, phone survey.
Help others by sharing your experience with (03) 8804 5809!
WRITE A REVIEWFrequently Asked Questions
Why does 03 8804 5809 hang up immediately when I answer?
One contributor reported calls from different variations of 03 8804 5809 that disconnect as soon as answered. This could indicate automated dialling systems with poor call completion, or deliberate hang-up tactics used by some callers. Hanging up immediately may signal the caller has already moved to another number, or they are testing whether the line is active. If 0388045809 continues calling and hanging up, blocking the number is recommended.
Is 03 8804 5809 a real business number?
The number 03 8804 5809 is allocated to Optus Networks as a Melbourne local service line, but community reports suggest mixed use. One contributor reported an estate agent using the number, another reported an Australian Research Centre survey call, and several reported silent calls. When one contributor tried to call 0388045809 back using ID suppression, the call disconnected and the number appeared not in service, suggesting the original caller may have been masking their identity.
What should I do if 03 8804 5809 keeps calling me?
If 0388045809 calls repeatedly, first block the number in your phone settings to prevent further calls. If the calls persist from variations of 03 8804 5809, you can register with the Do Not Call Register at donotcall.gov.au. For repeated silent calls from 0388045809, report the number to ACMA at acma.gov.au as an unwanted call. Providing ACMA with dates and times of calls helps them track patterns.
Why did my callback to 03 8804 5809 say 'number not in service'?
One contributor reported calling 0388045809 back using ID suppression, and the call disconnected with a 'number not in service' message. This suggests the original caller from 03 8804 5809 may have been using call ID masking or spoofing technology to hide their true number. This tactic is common in spam and scam operations. Do not attempt to call back unknown numbers; instead, rely on voicemail or community reports like those on Reverseau to identify the caller.
Could 03 8804 5809 be spoofing a real business number?
It is possible. One contributor reported an estate agent using 03 8804 5809, while another reported an Australian Research Centre survey call from the same number. Different callers using the same allocated Optus number, or spoofing occurring, could explain the varied report categories. The silent call reports and the callback-failure experience suggest some callers may be masking their identity through 0388045809. Always verify caller claims independently before providing information.
Should I answer if 03 8804 5809 calls again?
Several contributors to Reverseau chose not to answer 03 8804 5809 after reading community reports about the number. If you do not recognise 0388045809 and are uncertain about the caller, letting it go to voicemail is safer. Legitimate callers will leave a message. If 03 8804 5809 is important, you can always call them back using contact details from a trusted source rather than returning the call directly.