03 8804 5780 - 0388045780: Robocall and Scam Reports

• Suspicious
• Spam
• Scam

03 8804 5780 (0388045780) receives mixed reports including robocalls, silent calls, and scam attempts claiming arrears and prize winnings. Melbourne-based Optus number.

Robocall and Scam Reports for 03 8804 5780

Community reports for 03 8804 5780 (also written as 0388045780) describe a pattern of unwanted automated calls and scam attempts. This Melbourne-based number allocated to Optus Networks has received 15 reports over several months, with contributors flagging robocalls, silent calls, and at least two distinct scam tactics. The number appears to cycle between different calling strategies, from survey-based robocalls to impersonation attempts.

The reports fall into several categories. Multiple contributors report automated survey calls claiming to be from the "Australian Research Center" conducting government research. Other reports describe silent calls that hang up after just a few seconds. Most concerning are scam reports where callers claimed contributors were in arrears and threatened collections action, with one contributor noting the accompanying email looked fraudulent.

What Callers from 03 8804 5780 Say and Do

Robocall reports for 0388045780 consistently mention automated survey questions. One contributor received a voicemail asking about their age as part of what appeared to be a survey robocall. Another reported the same recorded message from the "Australian Research Centre" multiple times, but was unable to find any legitimate organisation by that name online.

Scam attempts using 03 8804 5780 employed more direct pressure tactics. A contributor received two calls claiming arrears and threatening collections action, with a follow-up call leaving no message. The contributor specifically noted the accompanying email looked suspicious. In a separate scam report, a caller spoke about winning money through answering questions, using urgency and prizes to prompt immediate engagement.

Silent call reports are also common. Several contributors describe calls where the caller barely spoke before hanging up, or disconnected after just 4 seconds. One contributor attempted to return the call to 0388045780 and reported getting an immediate disconnection message, which they identified as a strong scam indicator. Another contributor noted that when they called back, the number disconnected right after they had received the original call.

Call Patterns and Timing

Reports for 03 8804 5780 span from mid-2024 through early 2025, suggesting sustained activity. The most recent report came in February 2026, with the caller ID flagged as suspected spam and the call occurring around 5:30pm. A call from Melbourne was documented at 10:31am. Evening calls are also documented, with one contributor reporting a call at 7pm that hung up after 4 seconds.

The frequency pattern is notable. One contributor mentioned receiving "survey calls a lot lately," suggesting this number may be part of a broader robocall campaign. The variety of tactics across reports suggests either multiple operators using the same number or a deliberate strategy to test different approaches.

What to Do If You Receive a Call from 03 8804 5780

If 03 8804 5780 calls you, follow these steps:

• Do not: Answer calls from unknown numbers, return the call immediately, or engage with callers asking personal or financial information
• Do: Let the call go to voicemail, block the number in your phone, verify any claims through official channels using numbers from government websites (never use numbers from the call itself)
• Do not: Click links or download attachments from emails associated with these calls, especially if arrears or urgent action is mentioned
• Do: If you suspect impersonation of a government agency or debt collector, contact the relevant organisation directly using their official contact details from their website
• Do: If the call appears to be a robocall survey, simply hang up - legitimate surveys do not use automated calls to strangers

Robocall and Silent Call Tactics

The robocalls from 03 8804 5780 use automated systems to deliver survey questions or claim to represent government research. These calls often leave voicemails or ring repeatedly with minimal ring time. Silent calls from this number hang up almost immediately, which can indicate callback scams where the goal is to get you to call back and incur charges, or to confirm your number is active for further scam targeting.

When a number disconnects immediately after you call back, as happened in multiple 0388045780 reports, this is typically a sign the line was temporary or spoofed. Do not attempt multiple callbacks.

How to Report 03 8804 5780

If you receive unwanted calls from 03 8804 5780 or 0388045780, report them through these official Australian channels:

• ACMA (Australian Communications and Media Authority): Report spam calls and robocalls at acma.gov.au. ACMA investigates patterns of unwanted calls and can take action against providers.
• Scamwatch: If the call involved a scam attempt (arrears claims, prize offers, impersonation), report it at scamwatch.gov.au. Scamwatch tracks scam patterns and alerts the public.
• Do Not Call Register: Register your number at donotcall.gov.au to opt out of telemarketing. If 03 8804 5780 continues calling after registration, this strengthens your complaint to ACMA.
• Your phone provider: Report the calls to Optus Networks (the allocated provider) and request they investigate the number and consider blocking it.
• Reverseau: Contribute your own report on this page to help other Australians identify this number.

Frequently Asked Questions