- Spam
- Scam
- Suspicious
- Uncertain
Community reports for 03 7048 3058 (0370483058) describe silent calls, robocalls claiming to be from Australian Research Centre, and persistent callback scams.
Silent Calls and Robocall Reports for 03 7048 3058
Fourteen contributors have reported activity from 03 7048 3058 (also written as 0370483058), a Victorian number allocated to Symbio Networks. The reports paint a picture of a problematic number exhibiting multiple concerning patterns, including silent calls that disconnect when answered, robocalls delivering recorded messages, and suspicious callback behaviour where the number appears inactive when returned.
The most distinctive pattern involves silent calls where 0370483058 rings through but no one speaks when answered. One contributor who answered a call from 03 7048 3058 reported the caller simply hung up without any communication. A separate report describes a robocall claiming to represent the "Australian Research Centre" conducting a survey on cost of living, though the contributor noted uncertainty about the caller's true identity.
The Callback Trap from 03 7048 3058
Several contributors who attempted to call 0370483058 back received a recorded message stating "the number you have called is not in service." This pattern appears across multiple reports, including a contributor who explicitly documented calling back after a missed call and receiving the out-of-service message. Another contributor described the same experience, reinforcing that 03 7048 3058 uses this tactic repeatedly.
This callback scam technique is particularly problematic because the number appears to accept incoming calls but rejects outgoing ones, preventing contributors from verifying the caller's legitimacy or stopping repeat calls. The behaviour suggests the number may be spoofed or deliberately configured to frustrate callback attempts.
Persistent Repeat Calling Despite Blocking
Two contributors have reported that 0370483058 continues calling weekly even after they blocked the number. One contributor stated the calls persist "every week even after blocking," while another noted "they still get through" despite being added to their blocked list. This pattern of bypassing phone blocks suggests either multiple related numbers being used or a spoofing technique allowing the same number to circumvent standard blocking methods.
One contributor noted the odd timing of a call from 03 7048 3058 on Good Friday when most businesses were closed, which is inconsistent with legitimate business communication.
What to Do If You Receive a Call from 03 7048 3058
If 03 7048 3058 calls you:
- Do not: Answer and engage with silent calls, return the call if you miss it, or provide any personal information if someone does speak
- Do: Let calls go to voicemail, block the number immediately in your phone settings, and be aware that standard blocking may not prevent repeat calls from this number
- If you do answer: Hang up immediately if the line is silent or you hear a recorded message. Do not press any keys or wait for a voice prompt.
- Do not call back: Calling back 0370483058 appears designed to frustrate contributors and may incur costs if connected to a premium service. The out-of-service message may be intentional misdirection.
Report Patterns and Timing
The fourteen reports span from July 2025 to March 2026, showing persistent activity across an extended period. Most reports involve missed calls or answered calls with no communication. The distribution across multiple contact channels (missed calls, answered calls, and other) suggests the number cycles between different calling approaches.
Several contributors reported the out-of-service callback message as a consistent feature, indicating this is not an error but a deliberate pattern. The weekly calling cycle mentioned by two contributors suggests automated or semi-automated systems managing the outbound dialling.
How to Report 03 7048 3058
If you receive unwanted calls from 03 7048 3058, you can report the number through several channels:
- ACMA (Australian Communications and Media Authority): Report silent calls, robocalls, and repeated calls at acma.gov.au. Silent calls are a specific ACMA enforcement priority.
- Scamwatch: If the calls appear designed to solicit information or money, report at scamwatch.gov.au
- Do Not Call Register: Register your number at donotcall.gov.au to opt out of marketing calls (though this may not stop already-persistent callers)
- Your phone provider: Inform Symbio Networks or your own service provider about repeat calls and blocking issues, as persistent calls that bypass blocking may constitute harassment
- Reverseau: Contribute your own report here to help other Australians identify this number and warn others about the pattern
Help others by sharing your experience with (03) 7048 3058!
WRITE A REVIEWRatings Distribution
What Our Users Reviewed
Didn't talk so I hung up, gathering it's spam
Just another dodgy number like all the others
Called back and got out of service message
Didn't pick up but pretty sure it's spam
Got a call, no message, feels dodgy but not sure
Missed call from this number
Called, didn't leave a voicemail
calls every week even after blocking, seems like harassment
Keeps calling every week even though i've blocked them, they still get through. reckon it's a scam
Called on Good Friday when all businesses closed, odd timing
Missed call, called back and got message saying number not in service
I called the number back after missing a call. Recorded message advised that the number you have called is not in service. SPAM.
Missed call, called back and got a message saying the number's not in service
A recorded market research message from the "Australian Research Centre" doing a survey on the cost of living. I don't know who it's really from and I didn't participate.
Help others by sharing your experience with (03) 7048 3058!
WRITE A REVIEWFrequently Asked Questions
Why does 03 7048 3058 say 'not in service' when I call back?
Multiple contributors have reported receiving an out-of-service message when calling back 0370483058 after a missed call. This is a known tactic used in callback scams where the number accepts incoming calls but rejects outgoing ones, preventing you from verifying the caller or stopping future calls. Do not continue attempting to call back.
What is the 'Australian Research Centre' calling from 03 7048 3058?
One contributor received a robocall from 0370483058 claiming to represent the Australian Research Centre conducting a survey on cost of living. The contributor noted uncertainty about the caller's true identity. No legitimate research centre contact information was verified, and the robocall format is typical of unsolicited marketing or data-harvesting calls.
Why does blocking 03 7048 3058 not stop the calls?
Two contributors reported that 0370483058 continues calling weekly even after blocking the number in their phone's blocked list. This suggests the caller may be using number spoofing technology or managing multiple related numbers to bypass standard blocking functions, which is a common tactic in persistent scam and harassment campaigns.
What should I do if 03 7048 3058 calls but says nothing?
One contributor answered a call from 03 7048 3058 but the caller simply hung up without speaking. If this happens to you, hang up immediately and block 0370483058 in your phone settings. Silent calls from this number appear deliberate and are designed to identify active phone numbers. Do not wait, press keys, or engage in any way.
Is 03 7048 3058 a legitimate business number?
The number 0370483058 is allocated to Symbio Networks as a local Victorian service, but this allocation does not guarantee legitimacy. Fourteen community reports describe silent calls, persistent calling despite blocking, callback scams, and robocalls. The consistent pattern of suspicious behaviour across multiple contributors indicates this number or the service it represents is not operating legitimately.
Can I report 03 7048 3058 to authorities if it keeps calling?
Yes. You can report 0370483058 to the ACMA (acma.gov.au) for silent calls and persistent calling, which are specific enforcement priorities. If the calls appear designed to defraud or gather personal information, also report to Scamwatch at scamwatch.gov.au. Document the dates, times, and the out-of-service callback message if you receive it, as this evidence strengthens your report.