- Suspicious
Community report for 03 8000 4420 (0380004420): Silent call with dead air. One contributor answered but heard nothing on the line.
Silent Call Reports for 03 8000 4420
One contributor has reported receiving a silent call from 03 8000 4420 (also written as 0380004420). When the call was answered, the contributor heard only dead air - no greeting, no message, and no caller identification. This type of call pattern is commonly associated with automated dialling systems testing active phone numbers, callback scams, or robocall operations.
The number is allocated to Symbio Networks Pty Ltd, a local service provider operating in Victoria. However, allocation to a legitimate provider does not guarantee the current caller is operating legitimately, as numbers can be spoofed or misused.
What Silent Calls from 03 8000 4420 Indicate
Silent calls like the one reported for 0380004420 typically serve one of several purposes: the caller may be running an automated system that connects to live agents only when certain conditions are met, or the call may be part of a callback scam where the goal is to prompt recipients to call back a premium number. The dead air reported by the contributor suggests an automated process rather than a legitimate business call, which would normally result in a greeting or voicemail.
What to Do If You Receive a Call from 03 8000 4420
If 03 8000 4420 calls you:
- Do not: Call the number back, as this may connect you to a premium service or confirm your number is active to scammers
- Do not: Assume the call is safe because the number is allocated to a known provider - numbers can be spoofed
- Do: Let the call go to voicemail and listen to any message left
- Do: Block the number immediately if it calls again
- Do: Report repeated silent calls to the Australian Communications and Media Authority (ACMA)
Callback Scam Risks
Silent calls are frequently used as part of callback scams. The caller's goal is to generate a return call to 0380004420, which may be connected to a premium service line or recorded message that charges your phone account. Never return a call to a number you don't recognise, especially if the original call was silent or hang up immediately.
How to Report 03 8000 4420
If you receive additional calls from 03 8000 4420 or 0380004420, report them through these channels:
- ACMA (Australian Communications and Media Authority): Submit a complaint at acma.gov.au - ACMA tracks nuisance and scam calling patterns
- Do Not Call Register: Register your number at donotcall.gov.au to opt out of telemarketing, though this does not stop scammers
- Reverseau: Contribute your experience on this page to help other Australians identify the caller and assess risk
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What Our Users Reviewed
Answered and got dead air
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WRITE A REVIEWFrequently Asked Questions
What should I do if 03 8000 4420 calls me again?
Block the number immediately in your phone's settings. If 0380004420 continues to call after blocking, document the dates and times, then report the pattern to ACMA at acma.gov.au. Repeated silent calls may indicate an active scam or nuisance operation.
Why would someone call 03 8000 4420 back if it was silent?
This is exactly the risk. Callback scams use silent calls to generate return calls to premium-rate numbers or recorded messages that charge your account. Never return a call to an unknown number, especially if the original call was silent or you didn't recognise the caller.
Is 03 8000 4420 definitely a scam because it's allocated to Symbio Networks?
No. The number is legitimately allocated to Symbio Networks Pty Ltd in Victoria, but this does not confirm the current caller is operating the number lawfully. Phone numbers can be spoofed, and legitimate allocations can be misused. The silent call pattern reported for 0380004420 is suspicious, but the single report means this could also be a technical fault or misdirected call.
What's the difference between a silent call and a robocall from 03 8000 4420?
A silent call produces only dead air when answered, as reported for 0380004420. A robocall typically plays an automated message, music, or prompt to press a button. Both patterns can indicate automated systems, but silent calls are often associated with callback scams or number-testing operations.
Should I block 03 8000 4420 even though there's only one report?
Yes. A single silent call from 0380004420 is enough reason to block the number. Silent calls are rarely legitimate, and blocking costs nothing while protecting you from repeat calls or callback scams. If the caller has a genuine reason to reach you, they will leave a voicemail.
Can I report 03 8000 4420 to my phone provider?
Yes. Contact your phone provider and ask them to block 0380004420 or flag it as nuisance. Providers maintain their own blacklists and may be able to stop calls at the network level. You can also report to ACMA at acma.gov.au, which aggregates complaints across providers to identify patterns.