- Suspicious
One contributor reported a suspicious missed call from 03 4052 0645 (0340520645) with no voicemail, linked to Symbio Networks in Victoria.
Suspicious Activity Reported for 03 4052 0645
One contributor has flagged 03 4052 0645 (also written as 0340520645) for suspicious calling behaviour. The report describes a missed call with no voicemail or message left behind, raising immediate concern about the caller's intent.
The contributor noted that while the (03) area code indicates Victoria, their phone displayed the call's origin as Balranald in NSW. This geographic inconsistency between the area code and reported location is a common red flag in suspicious calling patterns. The number is allocated to Symbio Networks Pty Ltd, a Victorian local service provider.
Report Details for 03 4052 0645
The call to 03 4052 0645 came through on 30 July 2026 as a missed call. The contributor's immediate concern about the provider, combined with the geographic discrepancy and absence of any voicemail message, prompted them to block the number and report it.
The lack of a voicemail is particularly notable in this case. Legitimate callers typically leave a message explaining the purpose of their call, especially when reaching an unknown number. The silent approach taken by the caller of 0340520645 aligns with common suspicious calling tactics used by scammers and unwanted callers who may be testing phone numbers for validity or engagement.
What to Do If You Receive a Call from 03 4052 0645
If 03 4052 0645 calls you:
- Do not: Answer calls from unknown numbers, return the call, or provide any personal information
- Do: Let it go to voicemail, check if a message is left, and block the number if it persists
- Do: Note the reported location and compare it with the area code - geographic inconsistencies are a warning sign
How to Report 03 4052 0645
If you receive suspicious calls from 03 4052 0645, you can help protect other Australians by reporting your experience:
- Report to the Australian Communications and Media Authority (ACMA) at acma.gov.au
- Lodge a report with Scamwatch at scamwatch.gov.au if you believe it's a scam attempt
- Share your experience on Reverseau to contribute to the community database and help others identify unknown callers
- Block the number on your phone to prevent future calls
Help others by sharing your experience with (03) 4052 0645!
WRITE A REVIEWRatings Distribution
What Our Users Reviewed
Missed call 30-07-26. No message or v-mail left. Being the telco provider is Symbio Networks Pty Ltd, I'm automatically suspicious. My ph said the call was from Balranald NSW (not Box Hill, Vic) however the (03) prefix would make it Victoria.
Blocked, reported & deleted.
Help others by sharing your experience with (03) 4052 0645!
WRITE A REVIEWFrequently Asked Questions
Should I answer if 03 4052 0645 calls me?
No. Based on the community report, 03 4052 0645 called without leaving a voicemail, which is a sign of suspicious activity. It's safest to let unknown calls go to voicemail and check if a legitimate message is left. If the caller from 0340520645 is genuine, they will leave a message explaining their purpose.
Why is the geographic location of 03 4052 0645 inconsistent with the area code?
The contributor reported that 03 4052 0645 displayed as originating from Balranald, NSW, but the (03) prefix indicates a Victorian number. This inconsistency can occur with spoofed or misdirected calls, or issues with caller ID systems. Geographic mismatches like this with 0340520645 warrant extra caution.
What should I do if 03 4052 0645 keeps calling me?
Block the number immediately. The contributor of this report on 03 4052 0645 took the right steps by blocking, reporting, and deleting the record. If 0340520645 continues calling after blocking, document each occurrence and report the pattern to ACMA (acma.gov.au).
Is Symbio Networks Pty Ltd a legitimate provider?
Symbio Networks Pty Ltd is a registered Australian telecommunications provider based in Victoria. However, just because a number is allocated to a legitimate provider doesn't guarantee the caller is legitimate. Numbers can be spoofed or misused. The contributor's concern about 03 4052 0645 combined with the silent call approach suggests investigating further before trusting this caller.
What does it mean that no voicemail was left from 03 4052 0645?
Legitimate callers almost always leave a voicemail explaining why they called, especially when reaching someone they don't know. The fact that 03 4052 0645 (0340520645) made a call but left no message is suspicious and consistent with scam tactics, number-testing, or unwanted telemarketing calls that don't want to leave a trace.
How can I verify if a call from 0340520645 is legitimate?
If you're uncertain about a call from 03 4052 0645, hang up and independently verify the caller's identity by contacting the organisation directly using a phone number you know is genuine (found on their official website or government records). Do not use any contact details provided by the caller from 0340520645, as these may be fraudulent.