- Scam
One contributor reported an SMS scam from 0401 631 689 (0401631689) using a 'hi dad' impersonation message. Optus mobile number.
SMS Scam Reports for 0401 631 689
A single contributor has reported receiving a scam SMS from 0401 631 689 (also written as 0401631689). The message used a common social engineering tactic, posing as a family member with a casual greeting to establish false familiarity before what would likely escalate into a request for money or sensitive information.
This Optus mobile number has been flagged for SMS-based fraud activity. The "hi dad" approach is a known variation of family impersonation scams that prey on recipients' emotional responses and sense of urgency.
What the SMS from 0401 631 689 Contained
The contributor received a text message from 0401631689 that simply read "hi dad". This type of opening is deliberately vague and relies on the recipient either responding with concern or feeling obligated to engage. The scammer's goal is typically to build rapport quickly before introducing a fabricated emergency or request for money.
While the full conversation was not captured in the report, the contributor recognised the tactic immediately and blocked the number, preventing further contact.
Why "Hi Dad" SMS Scams Work
Family impersonation scams targeting parents are effective because they:
- Create instant emotional engagement - parents instinctively want to help their children
- Exploit uncertainty - the vague greeting makes recipients second-guess whether it might actually be a child using a new number
- Move quickly to demands - once a parent responds, the scammer fabricates an urgent problem requiring immediate payment
- Use familiar language - casual greetings feel authentic and lower suspicion
What to Do If You Receive an SMS from 0401 631 689
If 0401 631 689 texts you or you receive similar "hi dad" messages:
- Do not: Reply to the message, click any links, or provide personal information
- Do not: Accept any follow-up requests for money, gift cards, or bank details
- Do: Verify directly with your family member using a known phone number (call them back on their usual number)
- Do: Block the number immediately in your phone settings
- Do: Report the SMS as spam to your mobile provider
- Do: Forward the message to 0429 999 888 (ACMA's SMS reporting line)
How to Report 0401 631 689
If you receive scam SMS messages from 0401631689 or similar numbers:
- Report to ACMA (Australian Communications and Media Authority) by forwarding the SMS to 0429 999 888
- Report to Scamwatch at scamwatch.gov.au - include the message content, sender number, and what the scammer asked for
- Block the number in your phone's contacts and mark as spam
- Report to your mobile provider (Optus) - they can flag the number and assist with blocking
- Share your report on Reverseau to help other Australians identify this number
Family Impersonation Scams on the Rise
SMS-based family impersonation scams have become increasingly common in Australia. Scammers use simple, believable messages to initiate contact before pivoting to urgent requests. The "hi dad" variation specifically targets parents who may not immediately recognise their child's messaging style or assume their child is using a new phone.
If you have elderly parents or relatives, consider warning them about this tactic and explaining how to verify requests directly with family members through known contact methods.
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WRITE A REVIEWFrequently Asked Questions
What should I do if I receive a 'hi dad' text from 0401 631 689?
Do not reply to the message. Instead, call your family member directly on their usual phone number to verify it was actually them. Block 0401631689 in your phone settings and report the SMS to 0429 999 888 (ACMA's reporting line). This type of message from 0401 631 689 is a known scam tactic.
Is 0401631689 a real Optus customer service number?
No. While 0401631689 is allocated to Optus mobile, it has been flagged by contributors for scam activity. Optus customer service numbers are publicly listed on the official Optus website. If you need to contact Optus, always use the official number from their website rather than responding to unsolicited calls or texts from 0401 631 689.
What happens if I reply to the SMS from 0401 631 689?
If you reply to 0401631689, the scammer will likely follow up with an urgent request for money, claiming a family emergency. They may ask you to send funds via bank transfer, gift cards, or cryptocurrency. By confirming your number is active, you also make yourself a target for further scam attempts. It is safer not to engage at all.
Can I block 0401 631 689 on my phone?
Yes. On most Android and iPhone devices, you can block 0401631689 by opening the message, tapping the number, and selecting 'Block Contact' or 'Block Number'. You can also report it as spam at the same time. Blocking prevents calls and SMS from 0401 631 689 from reaching you.
Should I report this to my mobile provider?
Yes. Contact your mobile provider (in this case, Optus) and report 0401631689 for sending scam SMS. Optus can add the number to their spam filter and may investigate if multiple customers report the same number. You can also forward the SMS to 0429 999 888 for ACMA's records.
How do I know if a 'hi' text is a real family member or a scam from 0401 631 689?
Scammers often send vague greetings to multiple recipients hoping someone responds. Real family members typically use your name or reference something personal. When in doubt, contact your family member directly using their known phone number. Never assume a vague greeting from an unknown number like 0401631689 is actually a family member.