No Reverseau community members have reported receiving calls from 0402 421 823 yet. This page remains part of the Reverseau scam reporting database, where users can document real call experiences to help others identify unknown callers across Australia. The assessment will update as new reports become available.

31 January 2026 2-min Read 0 Reports

0402 421 823 is a mobile number associated with Optus. If you've received a call from this number, read on for tips on how to handle it.

Understanding Calls from 0402 421 823

The phone number 0402 421 823 is a mobile number linked to Optus Mobile Pty Limited. If you've received a call from this number, it's important to approach it with caution, especially if you don't recognise it.

What to Do if You Receive a Call

While there are currently no confirmed reports of scams linked to this number, it's always best to keep your guard up. Here are some practical tips to handle such a call:

Don’t rush to answer: If you don't know the number, let it go to voicemail first.
Verify before sharing information: If a call requests personal information or money, take a moment to verify the caller's identity.
Watch for red flags: Be cautious of high-pressure tactics or any threats during the call.
Hang up if in doubt: If something feels off, it’s better to hang up and not engage further.
Report suspicious calls: If you suspect fraud, report it to the appropriate authorities.

Staying Safe

Unknown callers can sometimes turn out to be legitimate. However, if you don’t have any known contacts in that area code, it’s wise to stay vigilant. Always prioritize your safety and privacy when it comes to phone communications.

About This Report

This page is part of the Reverseau Scam Intelligence Database, a community-driven dataset maintained by Reverseau since 2014. The database documents caller behaviour across Australian phone numbers based on first-hand user experiences.

Each entry is generated when individuals who received calls or messages from a number submit a report through our review form. Reports include a caller safety rating (1–5 scale) and a written account of the interaction. All submissions are moderated before publication.

The safety rating shown on this page reflects the collective assessment of 0402 421 823 by real users. It measures perceived caller risk, not the quality of this page. A low rating indicates that reporters consider this number likely to be associated with scam or spam activity.