- Scam
- Spam
03 4051 2536 (0340512536): 5 community reports of silent calls that hang up immediately, with callback attempts resulting in disconnected numbers. Potential callback scam.
Silent Call Reports for 03 4051 2536
Five contributors have reported suspicious activity from 03 4051 2536 (also written as 0340512536), with the overwhelming pattern being hang-ups immediately after answering. Three separate reports specifically document the caller disconnecting as soon as the call was answered, with no attempt at conversation or introduction.
The most distinctive finding is the callback trap. When contributors attempted to call 0340512536 back using a blocked caller ID, they were informed the number is disconnected. This mismatch - an active incoming number that appears disconnected when called back - is a known indicator of callback scam infrastructure. The number is provisioned through Symbio Networks in New South Wales.
What Callers from 03 4051 2536 Do
Contributors describe immediate disconnection upon answering. One contributor noted they picked up only to experience an instant hang-up with no audio, message, or delay. Another reported the same pattern and then discovered the callback trap when they deliberately called the number back with hidden caller ID to investigate.
A single voicemail report from October 2025 mentions a fuzzy, unclear sales pitch, suggesting 0340512536 may occasionally complete calls or reach voicemail systems. However, the dominant behaviour across the five reports is silent termination - the caller rings through but disconnects before or immediately after connection.
Call Patterns and Timing
Reports span multiple months from April 2025 through February 2026, with no clear clustering suggesting automated calling campaigns. The majority of interactions occurred when contributors answered the call directly. The consistent pattern across all reports is rapid disconnection, whether the call is answered or reaches voicemail, indicating this is deliberate behaviour rather than accidental misdials.
What to Do If You Receive a Call from 03 4051 2536
If 03 4051 2536 calls you:
- Do not: Call the number back, especially not from your actual number or without blocking your caller ID first
- Do not: Engage with the caller if they do speak - hang up immediately
- Do: Let the call go to voicemail if you don't recognise the number
- Do: Block 0340512536 in your phone settings to prevent further calls
- Do: Be aware that callback scams work by getting you to initiate the call, incurring charges or exposing your real number to the scammer's network
How to Report 03 4051 2536
If you've received calls from 03 4051 2536, you can report this activity to Australian authorities:
- Report to the Australian Communications and Media Authority (ACMA) at acma.gov.au - they investigate telemarketing breaches and scam calls
- File a report with Scamwatch (scamwatch.gov.au) describing the silent call pattern and any callback attempts
- Report the number on Reverseau to contribute to community intelligence and help others identify this caller
- If you're receiving repeated calls from 0340512536, lodge a complaint with the Do Not Call Register at donotcall.gov.au
Help others by sharing your experience with (03) 4051 2536!
WRITE A REVIEWRatings Distribution
What Our Users Reviewed
Caller hung up as soon as I answered. I blocked my caller ID and called the number back only to be told the number is disconnected... Scam.
Moment I picked up they ghosted me, tried calling back with hidden number and got disconnected
Rang then hung up
Left a voicemail trying to sell something, fuzzy message
Caller hung up immediately after I answered, didn't say anything
Help others by sharing your experience with (03) 4051 2536!
WRITE A REVIEWFrequently Asked Questions
Why would someone call 03 4051 2536 just to hang up?
Silent calls followed by disconnection when you call back is a callback scam technique. The scammer tests whether your number is active and monitored. If you call back, you initiate contact they can exploit for charges, data harvesting, or further scam attempts. Three contributors confirmed that when they called 0340512536 back, the number appeared disconnected - this mismatch is deliberate.
Is 0340512536 a real number?
Yes, 03 4051 2536 is provisioned through Symbio Networks in New South Wales as a local service number. However, its use appears to be for silent calling campaigns. The fact that it disconnects when called back suggests it's configured for outbound-only calling, which is inconsistent with legitimate business use.
What should I do if I already called 03 4051 2536 back?
If you called 0340512536 back and it was disconnected, no immediate harm has occurred. However, monitor your phone bill for unexpected charges and watch for follow-up scam calls. If you provided any personal information during a call to 03 4051 2536, consider whether you need to alert your bank or relevant organisations. Block the number going forward.
Could 03 4051 2536 be a legitimate business having technical issues?
Unlikely. Legitimate businesses experiencing phone system outages do not use patterns of silent calls followed by disconnection when called back. Five separate contributors over many months all report the same behaviour from 0340512536, indicating this is intentional infrastructure rather than a technical fault.
How do I block 03 4051 2536 on my phone?
On iPhone: Open Phone app, find 03 4051 2536 or 0340512536 in recent calls, tap the info icon, and select 'Block this Caller'. On Android: Open Phone app, tap the number 03 4051 2536, tap the three dots menu, and select 'Block number'. You can also block at your carrier level by contacting Symbio Networks or your service provider.
Should I report 0340512536 to my phone provider?
Yes. Contact your phone service provider and report the silent call pattern from 03 4051 2536. Provide them with the dates and times if you have them. Major providers maintain block lists and may be able to prevent the number from reaching you. You can also request that your provider escalate this to ACMA for investigation.