- Spam
Community report for 04 0379 9354 (0403799354): Silent call that disconnected without speaking. Optus mobile number.
Silent Call Report for 04 0379 9354
One contributor has reported receiving a silent call from 04 0379 9354 (also written as 0403799354). The caller rang through but disconnected immediately without saying anything, leaving no voicemail or message.
This Optus mobile number has been reported for nuisance calling behaviour. Silent calls like this can indicate several patterns: callback scams testing if the number is active, automated systems gathering data, or random nuisance calling.
What Silent Calls from 04 0379 9354 Indicate
The report about 0403799354 describes a call that connected briefly then ended without any greeting or message. The contributor answered the call, which is when the disconnect occurred. This pattern is often used by scammers to test whether a number belongs to an active account before launching a follow-up scam attempt or selling the number to other bad actors.
What to Do If You Receive a Call from 04 0379 9354
If 04 0379 9354 calls you:
- Do not: Call the number back, as this may confirm your number is active and lead to repeated contact
- Do: Let the call go to voicemail if you don't recognise the number
- Do: Block 0403799354 in your phone settings to prevent future calls
- Do: Check your phone bill for any unexpected charges if the number appears multiple times
Repeated Silent Calls from 04 0379 9354
If you receive multiple silent calls from 04 0379 9354 or similar patterns, the behaviour escalates from nuisance to potential harassment. Silent calls are sometimes the first stage of a callback scam, where the caller's goal is to trigger a return call to a premium-rate number. Do not return calls to unknown numbers, especially ones that ring and disconnect.
How to Report 04 0379 9354
If 04 0379 9354 calls you repeatedly:
- Report the number to the Australian Communications and Media Authority (ACMA) at acma.gov.au
- Add 0403799354 to your phone's block list to prevent future calls
- File a report with Reverseau to help other Australians identify this number
- If you believe the calls are harassing, contact your local police non-emergency line
Understanding Silent Calls and Callback Scams
Silent calls from numbers like 04 0379 9354 often precede callback scams. The scammer's system dials thousands of numbers looking for active accounts. When you answer, the line disconnects. Your return call to that number then connects you to a scammer claiming to be from a bank, government agency, or tech support service. Never return calls to numbers that have called you silently or that you don't recognise.
Help others by sharing your experience with 0403 799 354!
WRITE A REVIEWRatings Distribution
What Our Users Reviewed
Called then hung up without saying anything
Help others by sharing your experience with 0403 799 354!
WRITE A REVIEWFrequently Asked Questions
Why would someone call from 04 0379 9354 and hang up without speaking?
Silent calls from 0403799354 are often used to test if a phone number is active and monitored. Scammers use these to build lists of confirmed working numbers for later callback scams or to sell to other fraudsters. The contributor's report indicates the call disconnected immediately after being answered.
Is it dangerous to answer calls from 04 0379 9354?
Answering a call from 0403799354 itself isn't dangerous, but it confirms your number is active. The real risk comes if you call the number back, which may connect you to a scammer. If 04 0379 9354 calls you again, let it go to voicemail and block the number instead.
Should I call 0403799354 back to see who it is?
No. Do not call 0403799354 back. This is exactly what scammers want. Calling back confirms your number is monitored and may connect you to a fraudster posing as a bank or government agency. Block 04 0379 9354 in your phone settings instead.
What should I do if 04 0379 9354 keeps calling me?
Block 0403799354 immediately in your phone's settings. If the calls continue from this or similar numbers, report them to ACMA at acma.gov.au and consider reporting to your phone provider (Optus, in this case). Document the dates and times of each call for your records.
Could 04 0379 9354 be a legitimate business doing callback research?
Legitimate businesses do not use silent calls. Any organisation calling you will leave a voicemail or message identifying themselves. The silent call pattern reported from 0403799354 is a classic scam indicator, not a legitimate business practice.
How do I report this number to ACMA?
Visit acma.gov.au and use their complaints service to report 0403799354. Provide the date, time, and details of the silent call from 04 0379 9354. Include information about your phone provider (Optus mobile) to help ACMA investigate patterns across their network.