0400 251 510 - 0400251510: Robocall Scam Reports

• Scam

0400 251 510 (0400251510): Community reports describe automated robocall scams with recorded messages claiming service disruption, followed by language selection prompts.

Robocall Scam Reports for 0400 251 510

Two contributors have reported receiving automated robocall scams from 0400 251 510 (also written as 0400251510), a mobile number allocated to Telstra Limited. Both reports describe an identical pattern: a computer-generated voice claiming the recipient's phone will not work today, followed by a prompt asking whether the caller speaks English or Chinese before delivering a message in Chinese.

The automated nature of these calls from 0400 251 510 and the language selection tactic suggest an attempt to manipulate recipients into engaging with the scam message. The claim about service disruption is a common social engineering approach designed to create urgency and bypass scepticism.

What the Automated Message from 0400 251 510 Says

Contributors who answered calls from 0400 251 510 report hearing a recorded computer voice state: "Your phone won't work today." The call then prompts the recipient to indicate their language preference, asking if they speak English or Chinese. After the recipient engages with this prompt, a message plays in the selected language.

This two-stage approach is characteristic of scams designed to filter calls by language and increase compliance rates. The initial claim about service disruption creates false urgency, making recipients more likely to engage with subsequent messages without questioning their legitimacy.

Call Patterns and Channel

Both reports of calls from 0400 251 510 came through answered calls, indicating recipients picked up before realising it was an automated message. The identical wording across both reports and the rapid reporting timestamps suggest this robocall may be part of a broader campaign targeting multiple Telstra mobile customers simultaneously.

The use of a mobile number (0400 251 510) rather than a landline or toll-free number is notable, as it may be intended to appear less suspicious than a typical robocall source.

What to Do If You Receive a Call from 0400 251 510

If 0400 251 510 calls you:

• Do not: Engage with language selection prompts, press any keypad options, or remain on the line once you hear a recorded message
• Do: Hang up immediately, block the number in your phone settings, and do not call back
• Verify independently: If the message claims an issue with your phone service, contact your provider directly using the phone number on your bill or their official website, never by calling back the number that contacted you

How to Report 0400 251 510

If you receive a robocall from 0400 251 510, report it to the following Australian authorities:

• ACMA (Australian Communications and Media Authority): Report the call at acma.gov.au - they investigate illegal robocalls and unsolicited calls
• Scamwatch: Log the incident at scamwatch.gov.au, which tracks scam patterns and alerts the public
• Do Not Call Register: Register your number at donotcall.gov.au to opt out of telemarketing calls (though this does not stop scammers)
• Reverseau: Contribute your experience on Reverseau to help other Australians identify 0400 251 510 and similar scams

Frequently Asked Questions