- Unknown
- Uncertain
- Suspicious
Community reports for 03 9003 3646 (0390033646): Silent calls and robocalls with no message. 4 reports flagging suspicious and nuisance activity.
Silent Call and Robocall Reports for 03 9003 3646
Four contributors have reported suspicious activity from 03 9003 3646 (also written as 0390033646). The pattern centres on silent calls and robocalls with no legitimate purpose - callers either hang up immediately after connection or leave no voicemail. These characteristics are hallmarks of automated calling systems used for nuisance dialling or as callback scams.
The reports span late February through March 2026, with contributors consistently noting the absence of any message or identification. One contributor described receiving what appeared to be a robocall that went to voicemail with only silence before disconnecting. Another answered a call from 0390033646 only to hear silence followed by the line going dead.
What Callers from 03 9003 3646 Do
Contributors who have engaged with calls from 03 9003 3646 report minimal interaction. When the call is answered, the caller provides no greeting, message, or explanation - just silence followed by disconnection. In voicemail scenarios, the same pattern emerges: silence and automatic hangup with no recorded message.
This behaviour is characteristic of robocalling systems that dial numbers in bulk to identify active phone lines. Once a live connection is confirmed, the call either drops or transfers to a queue. Some contributors report the calls arriving as missed calls with no voicemail left, providing no context for the call's origin or purpose.
Call Patterns and Timing
Reports for 03 9003 3646 show activity across different times and contact channels. One robocall reached voicemail on 11 March, while a silent call connection occurred on 26 February. Two contributors missed calls from 0390033646 without any message left on 23 February and 16 February. The spread across multiple weeks and times of day suggests ongoing automated calling rather than a one-off contact attempt.
Contributors who blocked 03 9003 3646 after the initial contact report no further calls, suggesting the system moves on once a number is unreachable or blocked. This behaviour is typical of robocall lists that prioritise active lines and skip those that don't answer or reject calls.
What to Do If You Receive a Call from 03 9003 3646
Silent calls and robocalls from numbers like 03 9003 3646 should not be engaged with. Here's what you should do:
- Do not: Answer unknown numbers from 03 9003 3646, return the call, or engage if you do answer
- Do: Let calls go to voicemail, block the number immediately in your phone settings, and avoid pressing any keys if prompted
- Do not: Press any number in response to prompts - this confirms your line is active and will increase robocalls
- Do: Report the number to your phone provider and to the ACMA if calls are persistent
If 03 9003 3646 continues calling after you've blocked it, the persistence itself is worth reporting to authorities as it may indicate a deliberate nuisance campaign.
How to Report 03 9003 3646
Contributors can report calls from 03 9003 3646 through multiple channels:
- ACMA (Australian Communications and Media Authority): Report robocalls and nuisance calls at acma.gov.au. The ACMA tracks patterns of unwanted calls and can take action against persistent offenders.
- Scamwatch: If you suspect the calls are part of a broader scam pattern, report at scamwatch.gov.au
- Do Not Call Register: Check if 03 9003 3646 breaches the Do Not Call Register at donotcall.gov.au and lodge a complaint if you're registered but still receiving calls
- Your phone provider: Contact your carrier directly - they can sometimes block numbers or investigate the source
- Reverseau: Report your experience with 0390033646 to help other Australians identify this number
Help others by sharing your experience with (03) 9003 3646!
WRITE A REVIEWRatings Distribution
What Our Users Reviewed
Listed as suspected spam, went to voicemail with just silence and a hangup
Said hello then went dead
Missed call, no message, had a bad feeling so blocked it
Missed call, no message left
Help others by sharing your experience with (03) 9003 3646!
WRITE A REVIEWFrequently Asked Questions
What does a silent call from 03 9003 3646 mean?
A silent call where the line goes dead immediately after answering typically indicates an automated robocalling system. When you answer, the system may have no operator available or may be testing whether your number is active. Contributors who received calls from 03 9003 3646 reported silence followed by disconnection, which is standard behaviour for such systems. Do not call back 0390033646 - this confirms your line is monitored.
Why did 03 9003 3646 leave no voicemail?
A voicemail with only silence and hangup from 03 9003 3646 suggests an automated robocalling system with no intended message. One contributor reported exactly this scenario with 0390033646 - the call reached voicemail but no actual message was recorded, just silence before disconnection. Legitimate callers always leave a message explaining their purpose. The absence of any message is a red flag.
Is 03 9003 3646 a scam number?
Based on current reports, 03 9003 3646 is flagged for silent calls and robocalls with no message content. While not all robocalls are scams, the pattern from 0390033646 - incoming calls with no purpose stated and immediate disconnection - indicates nuisance activity at minimum. Some robocalling systems are used to harvest active phone numbers for later scam attempts. Block the number and report it to avoid further contact.
What should I do if I answer a call from 03 9003 3646?
If you answer and hear silence from 03 9003 3646, hang up immediately. Do not speak or press any keys - this confirms your line is active and monitored. Do not try to call back 0390033646. After hanging up, block the number in your phone settings. If you receive another call from 03 9003 3646, report it to the ACMA at acma.gov.au as a robocall or nuisance call.
How can I block 03 9003 3646?
Most phones allow you to block numbers directly. On iPhone, go to Recent Calls, find 03 9003 3646, tap the info icon, and select Block Contact. On Android, open your Phone app, find the call from 0390033646, long-press it, and select Block Number. Your phone provider may also offer call-blocking services - contact them to ask about blocking 03 9003 3646 at the network level.
Should I report 03 9003 3646 to authorities?
Yes. If 03 9003 3646 calls you repeatedly, report it to the ACMA (acma.gov.au) as a robocall or nuisance call. If you're registered on the Do Not Call Register, check donotcall.gov.au to lodge a complaint that 0390033646 breached your registration. Multiple reports help authorities identify patterns and take enforcement action against robocalling operators.