03 9003 6643 - 0390036643: Silent Call and Scam Reports

• Scam
• Spam
• Suspicious

Community reports for 03 9003 6643 (0390036643): Silent calls with dead air and suspected scam activity. 4 reports from contributors.

Silent Call and Scam Reports for 03 9003 6643

Four contributors have flagged 03 9003 6643 (also written as 0390036643) for suspicious activity. One report describes a scam call with no explanation, while another contributor experienced dead air on the line with no message left after the call connected. Two additional reports detail missed calls from 0390036643 where no voicemail was left, with one contributor noting an uneasy feeling about the number despite uncertainty about the intent.

The pattern of silent calls followed by no voicemail suggests potential callback scam behaviour, where callers rely on recipients returning the missed call to incur charges or enable further contact for scam purposes.

What Callers from 03 9003 6643 Do

When calls from 03 9003 6643 connect, contributors report hearing only dead air or silence. One contributor answered a call from this number and received no response, with the caller hanging up without leaving any message or explanation.

The behaviour of ringing but not engaging is a common callback scam tactic. Scammers use this approach hoping recipients will return the call, triggering paid callback services or enabling the scammer to initiate a social engineering attack once contact is established.

Report Patterns and Timing

Reports for 03 9003 6643 span from late January through early February 2026. The calls have come through as both answered calls and missed calls, suggesting the number is actively attempting contact at varying times. One report indicates the contributor answered the call directly, while others received missed calls with no voicemail follow-up.

The consistent pattern of no engagement or message from 0390036643 across multiple reports suggests automated or systematic calling rather than legitimate business contact.

What to Do If You Receive a Call from 03 9003 6643

If 03 9003 6643 calls you:

• Do not: Return the call, especially if it's an international or premium-rate number, as this may trigger charges or connect you with scammers
• Do not: Provide any personal or financial information if you do answer
• Do: Let calls go to voicemail and check who called using a reverse phone lookup
• Do: Block the number in your phone settings to prevent future calls
• Do: Hang up immediately if you answer and hear only silence or dead air
• Do: Report the number to ACMA if the calls persist

Why Silent Calls Matter

Silent calls from 03 9003 6643 (0390036643) are often used as callback scams or to harvest active phone numbers. By calling and disconnecting without speaking, scammers identify which phone numbers are in use and actively monitored. If you return the call out of curiosity or concern, you may be connected with fraudsters or charged significant fees for calling a premium-rate number.

How to Report 03 9003 6643

If you receive calls from 03 9003 6643, report the number through these official Australian channels:

• ACMA (Australian Communications and Media Authority): Report via acma.gov.au - ACMA tracks scam and nuisance calls and can take enforcement action against repeat offenders
• Scamwatch: Report at scamwatch.gov.au if you believe the calls are scam-related. Scamwatch aggregates reports to identify emerging scam trends
• Do Not Call Register: If the calls are telemarketing-related, register your number at donotcall.gov.au
• Reverseau: Submit your own report about 0390036643 on Reverseau to help other Australians identify this number and protect the community

Frequently Asked Questions