- Uncertain
- Spam
03 9964 6788 (0399646788) - 3 community reports of silent calls and immediate hang-ups. Victoria local number with AAPT. Likely callback scam or robocall testing.
Silent Calls and Hang-ups from 03 9964 6788
Three contributors have reported suspicious activity from 03 9964 6788 (also written as 0399646788), a Victoria-based local service number registered to AAPT Limited. The common pattern across reports involves the caller either remaining silent after the recipient answers or hanging up immediately when picked up, without leaving any voicemail message.
This behaviour is characteristic of callback scams or automated robocall systems testing whether numbers are active. Contributors describe the calls as unsettling, with one noting they "shouldn't have answered at all" after experiencing the silent treatment.
What Happens When You Answer 03 9964 6788
Recipients of calls from 03 9964 6788 report a consistent experience: silence after greeting the caller, followed by disconnection. One contributor picked up the phone, said hello, and was met with complete silence before deciding to hang up. Another received a call that rang through but disconnected the moment they answered, with no attempt at conversation or voicemail.
A third report involved a missed call with no voicemail left behind, suggesting the caller made no effort to leave any message or callback details. The lack of voice contact across all three instances points to an automated or testing system rather than a legitimate caller with a genuine reason to connect.
Report Patterns and Timing
The three reports about 0399646788 span several months, with the most recent occurring in October 2026 and earlier reports from July and mid-October. Two reports involved the recipient actually answering the call, while one was missed entirely. The sporadic timing over a multi-month period suggests either intermittent callback testing or a number being recycled through different calling campaigns.
Given the local service allocation to AAPT Limited in Victoria, the number may have previously been a legitimate business line that has since been compromised, spoofed, or reassigned to calling operations.
What to Do If You Receive a Call from 03 9964 6788
If 03 9964 6788 calls you, follow these steps:
- Do not: Answer unknown numbers, especially if you don't recognise the caller
- Do not: Call the number back, as this confirms your number is active and may increase callback attempts
- Do: Let the call go to voicemail and check if a message is left
- Do: Block the number in your phone's call blocking settings if calls from 0399646788 persist
- Do: Hang up immediately if you answer and hear silence or no response within a few seconds
How to Report 03 9964 6788
If you've received calls from 03 9964 6788 or 0399646788, you can report the activity through these Australian channels:
- ACMA (Australian Communications and Media Authority): Report the number via acma.gov.au - they monitor robocalls and callback scams
- Scamwatch: Lodge a report at scamwatch.gov.au if you suspect fraudulent intent
- Do Not Call Register: Register your number at donotcall.gov.au to reduce telemarketing calls generally
- Reverseau: Contribute your own experience with 03 9964 6788 to help other Australians identify this number
Help others by sharing your experience with (03) 9964 6788!
WRITE A REVIEWRatings Distribution
What Our Users Reviewed
Was met with silence after I said hello, so I hung up immediately. Shouldn't have answered at all (I don't usually). Feels dodgy...
Rang then hung up when I picked up, annoying
Didn't pick it up, no voicemail
Help others by sharing your experience with (03) 9964 6788!
WRITE A REVIEWFrequently Asked Questions
Why do callers from 03 9964 6788 hang up immediately?
The reports about 0399646788 suggest this is a callback scam or robocall testing system. Callers disconnect to confirm your number is active and monitored by a real person. Once confirmed, they may try again later with an actual scam pitch, add your number to a list for sale, or continue harassing with silent calls.
Is 03 9964 6788 dangerous if I don't answer?
If you don't answer 0399646788, there's minimal risk from a single missed call. The danger increases if you call the number back - this confirms your number is active and monitored, potentially leading to more calls. Ignore missed calls from 03 9964 6788 and do not return them.
Can I block 03 9964 6788 on my phone?
Yes. Most Australian phones allow you to block numbers directly in the call log or contact settings. After receiving calls from 0399646788, open your recent calls, select the number, and choose 'Block' or 'Add to blocked list'. This prevents 03 9964 6788 from reaching you further.
Should I report 03 9964 6788 to authorities?
Yes. You can report calls from 0399646788 to the ACMA at acma.gov.au, as they track robocalls and callback scams. If you believe the number is being used for fraud, also report to Scamwatch at scamwatch.gov.au. These reports help authorities identify and shut down calling operations.
Why does 03 9964 6788 show as a Victoria local number?
The number 0399646788 is registered as a local service to AAPT Limited in Victoria, but this doesn't mean the caller is actually in Victoria. Scammers and robocall operators frequently spoof or hijack legitimate local numbers to appear trustworthy. The Victoria registration is no guarantee of legitimacy.
What should I do if 03 9964 6788 keeps calling me?
If 0399646788 calls repeatedly, block the number immediately, do not answer or call back, and report it to ACMA and Scamwatch. Consider registering your number with the Do Not Call Register at donotcall.gov.au. If harassment continues, contact your phone provider about additional blocking options and consider reporting to the police.