- Unknown
One contributor reported a one-ring call from 02 7240 1619 (0272401619). Callback attempts to this number were unsuccessful.
One-Ring Call from 02 7240 1619
A single contributor has reported receiving a one-ring call from 02 7240 1619 (also written as 0272401619) on 20 October 2025. The call pattern matches what's commonly known as a "one-ring scam" or "callback scam" - the phone rings once then disconnects, designed to trigger a callback attempt.
When the contributor tried to return the call to 0272401619, the line was unavailable. This behaviour is typical of callback scams where callers attempt to trick recipients into dialling back to premium-rate numbers or international numbers that generate fees, or where the sole purpose is to confirm the number is active for future targeting.
What to Do If You Receive a Call from 02 7240 1619
One-ring calls from numbers like 02 7240 1619 should not be returned:
- Do not: Call back unknown numbers, especially after a single ring
- Do not: Assume the call was important - legitimate callers leave voicemails
- Do: Let the call go to voicemail if the caller is genuine
- Do: Block 0272401619 if the calls continue
- Do: Check your phone bill for unexpected charges if you did call back
Why Callers Use One-Ring Tactics
One-ring calls serve several purposes for scammers and spammers. They can generate revenue if recipients call back international or premium numbers. They also help scammers identify active phone numbers for targeted campaigns later. Some one-ring callers are testing whether a number will answer, building lists of responsive targets for follow-up scams or harassment.
In this case, the call came from 02 7240 1619, allocated to Symbio Networks in New South Wales. The unsuccessful callback attempt suggests the caller may have been using call spoofing technology or was operating from an infrastructure that doesn't accept return calls on that routing.
How to Report 02 7240 1619
If you experience repeated one-ring calls from 02 7240 1619 or similar numbers, report the activity to relevant Australian authorities:
- ACMA (Australian Communications and Media Authority): acma.gov.au - Report unwanted calls and get your number added to the Do Not Call Register
- Scamwatch: scamwatch.gov.au - Report suspected scams and callback attempts
- Do Not Call Register: donotcall.gov.au - Register your number to reduce telemarketing and spam calls
- Reverseau: If you receive further calls from 0272401619, contribute your report to help the community identify patterns
Help others by sharing your experience with (02) 7240 1619!
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What Our Users Reviewed
One-ring call, tried calling back and line unavailable
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WRITE A REVIEWFrequently Asked Questions
What is a one-ring scam and why would someone call 02 7240 1619 and hang up?
A one-ring scam (also called a callback scam) involves a caller ringing once then immediately disconnecting. The goal is to trigger a callback attempt to 02 7240 1619 or 0272401619, which may connect to a premium-rate number, international line with high charges, or a number designed to confirm your line is active for future scams. Never return calls to unknown numbers that ring only once.
I tried calling back 0272401619 and the line was unavailable. What does this mean?
When a callback to 0272401619 fails, it often indicates call spoofing (the caller masked their real number) or the original call was routed through infrastructure that doesn't accept return calls on that path. This is common in one-ring scams. Do not attempt further callbacks - block the number instead.
Could 02 7240 1619 be a legitimate business?
The number 02 7240 1619 (0272401619) is allocated to Symbio Networks, a legitimate Australian service provider. However, the one-ring call pattern reported by the contributor is not typical of legitimate business practice. Genuine businesses leave voicemails or allow calls to ring fully. If you suspect a legitimate caller used this number, contact the organisation directly via their official website rather than returning the call.
What should I do if I already called back 02 7240 1619?
If you called back 0272401619 and incurred unexpected charges, check your phone bill and contact your provider immediately. If you provided personal information during the callback, monitor your accounts for unauthorised activity. For future protection, block 02 7240 1619 and report the number to ACMA at acma.gov.au.
Should I block 02 7240 1619 or add it to the Do Not Call Register?
Yes to both. Block 0272401619 directly in your phone's contacts to prevent future calls reaching you. Additionally, ensure your own number is registered on the Do Not Call Register at donotcall.gov.au - this reduces overall spam and scam calls to your line, though it won't specifically stop 02 7240 1619 if they ignore the register.
How can I report this one-ring call from 02 7240 1619?
Report the call to Scamwatch at scamwatch.gov.au and ACMA at acma.gov.au. Include the phone number 0272401619, the date and time of the call, and details about the one-ring pattern and failed callback. You can also contribute your experience on Reverseau to help other Australians identify patterns from 02 7240 1619.