0405 900 999 - 0405900999: Suspicious Call Reports

3-min Read2 Reports

  • Scam
  • Suspicious

Community reports for 0405 900 999 (0405900999): Unknown calls on public holidays. Vodafone mobile number flagged as suspicious.

Suspicious Activity on 0405 900 999

Two contributors have reported receiving unsolicited calls from 0405 900 999 (also written as 0405900999), a Vodafone mobile number. Both reports describe unexpected contact on public holidays, with callers providing no information or context for the call. The pattern suggests potential scam or spam activity targeting Australian phone users on days when verification may be more difficult.

The first contributor received a missed call from 0405900999 and immediately blocked the number, noting the timing on a public holiday made the contact appear suspicious. A second report describes a similar experience with 0405 900 999 calling on a public holiday with no voicemail left.

Why Public Holiday Calls Matter

Scammers and spam callers often target Australians on public holidays when official channels (banks, government services, companies) are closed. This timing makes it harder for victims to verify whether calls are legitimate. The pattern of two reports about 0405 900 999 both occurring on public holidays suggests deliberate targeting rather than routine contact attempts.

What to Do If You Receive a Call from 0405 900 999

If 0405 900 999 calls you:

  • Do not: Answer unknown mobile numbers, return the call, or engage with callers who provide no context
  • Do: Let the call go to voicemail, block the number immediately if it calls again, and verify any business claim through official channels (contact the company directly using a number from their official website)
  • Public holiday calls: Be especially cautious of unexpected contact on days when legitimate businesses are closed - scammers rely on this timing

What to Do If You Receive an SMS from 0405 900 999

If 0405900999 sends you an SMS:

  • Do not: Click any links, reply to the message, or provide personal information
  • Do: Delete the message, block the number, and report it as spam to your mobile provider
  • Report: Forward suspicious SMS to 0429 999 888 (Australian mobile carriers' spam reporting service)

How to Report 0405 900 999

If you've received contact from 0405 900 999 that you believe is scam or spam activity:

  • Report to the Australian Communications and Media Authority (ACMA) at acma.gov.au - they investigate illegal telemarketing and scam calls
  • Lodge a report with Scamwatch (scamwatch.gov.au), which tracks emerging scam patterns and provides public alerts
  • Block the number on your mobile device to prevent further contact
  • Report your experience on Reverseau to help other Australians identify suspicious numbers - community reports are essential for building caller intelligence
  • If the caller impersonated a specific company or government agency, also report directly to that organisation

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Ratings Distribution

2.0 out of 5
5 Stars 0%
4 Stars 0%
3 Stars 50%
2 Stars 0%
1 Star 50%

What Our Users Reviewed

A
Anonymous

Unsolicited and unknown phone call received on a public holiday, can only assume it's a scam. Have blocked this number.

A
Anonymous

Unknown number called on a public holiday


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Frequently Asked Questions

Why would someone call from 0405 900 999 on a public holiday?

Both reports about 0405 900 999 (0405900999) describe calls received on public holidays. Scammers deliberately target Australians on public holidays because official business lines are closed, making it difficult for victims to verify whether calls are legitimate. The timing itself is a red flag - if you don't recognise the number and they call when most businesses are closed, it's safer to assume the call is unwanted contact.

Is 0405 900 999 definitely a scam?

Two contributors have reported 0405 900 999 (0405900999) as suspicious, both describing unexplained calls on public holidays with no message left. Neither report provides details of what the caller said or claimed. While the pattern (unknown mobile number, public holiday timing, no context) is consistent with scam behaviour, we cannot confirm intent without more information. If you receive a call from 0405900999, the safest approach is to not answer and block the number.

What should I do if 0405900999 keeps calling me?

If 0405 900 999 calls repeatedly, block the number immediately on your mobile device. Most Australian phones (iPhone, Android) allow you to block specific numbers through Settings > Phone or equivalent. Report the pattern to ACMA (acma.gov.au) if the calls are persistent, and consider reporting to your mobile provider (Vodafone in this case, since 0405900999 is a Vodafone number) to request additional blocking assistance.

Can I report 0405 900 999 somewhere other than Reverseau?

Yes. If you've received unwanted contact from 0405 900 999 (0405900999), you can report to multiple Australian authorities: Scamwatch at scamwatch.gov.au (tracks scam patterns and issues alerts), ACMA at acma.gov.au (investigates illegal telemarketing and spam calls), or your mobile provider (in this case, Vodafone). You can also report the number on Reverseau to contribute to community intelligence - this helps other Australians identify the same caller.

Should I be worried if 0405 900 999 called me once?

A single call from 0405 900 999 (0405900999) isn't necessarily cause for panic, especially if no voicemail was left and you didn't answer. However, if the call occurred on a public holiday (as both reports describe) and you don't recognise the number, it's sensible to block it. If 0405900999 calls again, the pattern becomes clearer and should definitely be blocked and reported.

Is this a Vodafone customer service number?

No. While 0405 900 999 (0405900999) is a Vodafone mobile number, the reports suggest it is being used for unsolicited contact rather than legitimate customer service. Vodafone customer service uses dedicated 1300 or 1800 numbers, not mobile numbers like 0405900999. If you need to contact Vodafone directly, visit vodafone.com.au to find their official support numbers rather than returning calls to unknown mobile numbers.