- Suspicious
- Scam
Community reports for 03 9003 3364 (0390033364) describe Telstra impersonation calls targeting Optus customers. Callers claim account issues requiring immediate verification.
Telstra Impersonation Reports for 03 9003 3364
Three contributors have flagged calls from 03 9003 3364 (also written as 0390033364), with one confirmed report describing Telstra impersonation. A contributor with an Optus account received a call from 0390033364 where the caller claimed to represent Telstra, despite the recipient having no Telstra service. This mismatch is a common impersonation tactic used to catch people off guard or exploit uncertainty about their own accounts.
The contributor who reported the Telstra impersonation on 03 9003 3364 took appropriate action by reporting the number to Scamwatch. Two additional reports about 0390033364 describe uncertain activity, including a missed call with no message and a voicemail from a caller with a foreign accent that was difficult to understand.
What Callers from 03 9003 3364 Claim
The confirmed impersonation report indicates the caller from 03 9003 3364 claimed affiliation with Telstra. Impersonation of major Australian telcos is a recognised scam tactic, often used as a pretext to request account verification details, payment information, or access to devices. The fact that the call targeted an Optus customer suggests either random dialling or data sourcing from a breach.
One contributor reported receiving a voicemail from 0390033364 spoken with a foreign accent that was unintelligible, which may indicate automated systems or overseas call centres. Silent or unclear voicemails from 03 9003 3364 could indicate callback scams, where the goal is to prompt the recipient to return the call to an expensive or fraudulent number.
Report Patterns and Timing
The reports for 03 9003 3364 span from late December 2025 through mid-January 2026. One call from 0390033364 was answered directly, while another went to voicemail, and a third was missed. The variety in contact methods suggests the number may be used for multiple calling campaigns rather than a single scam operation.
What to Do If You Receive a Call from 03 9003 3364
If 03 9003 3364 calls you:
- Do not: Confirm your account details, provide passwords, or agree to remote access if the caller claims to be from Telstra, Optus, or any other telco
- Do: Hang up immediately and independently verify by calling the official telco number from your bill or their official website
- Do: Block the number 0390033364 if the call repeats or feels suspicious
- Do: Let unknown calls go to voicemail before deciding whether to engage
Legitimate telcos will never call asking you to verify details over the phone. If you have account concerns, log in directly to your telco's app or call the number on your official bill.
What to Do If You Receive an SMS from 03 9003 3364
If you receive an SMS from 0390033364:
- Do not: Click any links or reply to the message
- Do: Report it as spam or phishing to your telco and to the ACMA
- Do: Delete the message immediately
How to Report 03 9003 3364
If you receive a call from 03 9003 3364 that you believe is a scam:
- Report to Scamwatch at scamwatch.gov.au with details of what was said
- Report to the ACMA (Australian Communications and Media Authority) at acma.gov.au
- If the call claimed to be from your telco, report directly to them via their official support channels
- Add 0390033364 to your phone's block list to prevent future calls
- Consider contributing your experience to Reverseau to help other Australians identify this number
Help others by sharing your experience with (03) 9003 3364!
WRITE A REVIEWRatings Distribution
What Our Users Reviewed
Unknown number called, no message left, feels off
Had a call from this number saying they were Telstra... I've got an Optus account. Reported this number to Scam Watch.
Voicemail from foreign accent, couldn't understand it
Help others by sharing your experience with (03) 9003 3364!
WRITE A REVIEWFrequently Asked Questions
Why would someone impersonate Telstra when calling my Optus account?
Scammers using impersonation often rely on confusion or social engineering. By claiming to be from a major telco like Telstra, they hope you'll panic about account issues or security threats and comply with their requests before verifying. The contributor who received the call from 03 9003 3364 (0390033364) was targeted despite being an Optus customer, suggesting the caller uses generic impersonation scripts. Always verify independently by calling your telco directly using the number on your bill.
What should I do if I already gave information to a caller from 0390033364?
If you shared personal details, account information, or payment details with someone claiming to be from Telstra on 03 9003 3364, contact your telco immediately and your bank. Monitor your accounts for unauthorised activity. Report the call to Scamwatch (scamwatch.gov.au) and the ACMA (acma.gov.au) with as much detail as you remember. If the caller obtained login credentials, change your passwords immediately and enable two-factor authentication.
Is 03 9003 3364 definitely a scam?
One report confirms impersonation from 03 9003 3364, while two others describe uncertain activity (missed call and voicemail). The confirmed report shows the number was used to impersonate Telstra, which is a scam tactic. However, the other reports about 0390033364 are unclear, so the number may be associated with multiple types of calls. It's safest to treat calls from this number as suspicious and verify the caller's identity independently.
What is a callback scam, and could that explain the voicemail from 0390033364?
A callback scam occurs when scammers call and leave an unclear or foreign-language voicemail, hoping you'll call back. The return call connects to an international number or premium service that charges high fees. One contributor reported receiving a voicemail from 03 9003 3364 with a foreign accent they couldn't understand. Do not return calls to unknown numbers that leave unclear messages. If curious, verify the number independently before calling back.
Should I block 03 9003 3364 on my phone?
Yes. The community reports for 0390033364 include confirmed impersonation, so blocking the number is a sensible precaution. Most phone systems allow you to block specific numbers in your contacts or call settings. This will prevent future calls from 03 9003 3364 from reaching you, though scammers often use multiple numbers, so remain cautious with other unknown callers.
Where can I report the number 03 9003 3364?
Report 0390033364 to Scamwatch (scamwatch.gov.au) with details of what the caller said and when they called. You can also report to the ACMA (Australian Communications and Media Authority) at acma.gov.au, which investigates telecom fraud. If the call impersonated a specific telco, report to that telco's support team as well. Contributing your report to Reverseau also helps other Australians identify the number 03 9003 3364.