03 9003 4813 - 0390034813: Silent and Hang-Up Call Reports

• Uncertain
• Spam
• Suspicious

03 9003 4813 (0390034813): 4 community reports of silent calls, no messages, and hang-ups when answered. Pattern suggests robocall or callback scam setup.

Silent Call and Hang-Up Reports for 03 9003 4813

Four contributors have reported receiving calls from 03 9003 4813 (also written as 0390034813) that exhibit a consistent pattern of silence or immediate disconnection. The number appears to ring once or twice without leaving any voicemail message, and when answered, callers hang up rather than engage. This behaviour is typical of robocall campaigns or callback scams designed to identify active phone numbers for future targeting.

The reports for 0390034813 span several months, with the earliest report in February 2026 and the most recent in April 2026, suggesting ongoing activity. One contributor noted receiving multiple calls from 03 9003 4813 over a short period, each following the same pattern of no message and hang-ups when answered.

Call Behaviour and Patterns

The calls from 03 9003 4813 are characterised by minimal engagement. Contributors describe the number ringing once then disconnecting, or leaving no voicemail when missed. When a recipient has answered, the caller on the other end hangs up immediately without speaking. This tactic is often used by automated systems to test which numbers are active, with the intention of selling verified contact lists to scammers or launching targeted campaigns later.

One contributor reported that calls from 0390034813 occurred alongside other suspicious activity, including a separate call from a Bangladesh number the same day, suggesting possible coordination in a broader targeting campaign. The lack of message and refusal to engage when answered distinguishes 03 9003 4813 from standard telemarketing, where callers typically attempt to deliver a pitch.

What to Do If You Receive a Call from 03 9003 4813

If 03 9003 4813 calls you:

• Do not: Return the call, as this confirms your number is active and may increase future contact attempts
• Do not: Press any numbers or buttons if prompted, as this can trigger callback scams
• Do: Let it ring to voicemail if you don't recognise the number
• Do: Block 03 9003 4813 immediately after the first call
• Do: Report the number if calls persist, even without a message
• Do: Be cautious of follow-up calls from other numbers in subsequent days, which may be related campaigns

Why Callers Hang Up or Say Nothing

Silent calls and hang-ups from numbers like 0390034813 serve two main purposes. First, automated systems use them to verify active phone numbers, which are then sold to other scammers or spammers. Second, some callback scams deliberately trigger a missed call hoping you'll return it, incurring charges or connecting you to a paid service. By answering or returning the call, you confirm your number is monitored and worth targeting further.

How to Report 03 9003 4813

If you receive repeated silent calls or hang-ups from 03 9003 4813, report the number to the Australian Communications and Media Authority (ACMA) via their online complaint form at acma.gov.au. You can also report silent calls as harassment through the ACMA if the pattern continues.

• Report to ACMA (acma.gov.au) - silent calls and nuisance calls
• Block the number on your phone (most phones have a built-in block feature)
• Register with the Do Not Call Register at donotcall.gov.au if you haven't already, though this may not stop automated systems
• Report to Reverseau by sharing your experience with 03 9003 4813 to help other contributors in Australia

Frequently Asked Questions