- Suspicious
- Scam
- Spam
- Unknown
- Legit
- Uncertain
Community reports for 02 5135 5791 (0251355791): Silent calls, robocall surveys, and suspicious activity from Rye Park NSW area. Contributors report hang-ups and political polling spam.
Silent Calls and Survey Spam from 02 5135 5791
02 5135 5791 (also written as 0251355791) has accumulated 11 community reports flagging a pattern of silent calls, robocall surveys, and suspicious behaviour. The number is allocated to Symbio Networks in Rye Park, NSW, but contributors report inconsistent caller behaviour ranging from immediate hang-ups to automated political polling. Multiple reports suggest the number may be cloned or spoofed, with calls appearing to originate from different locations including Canberra, Caven, and Gearys Gap.
The concerning pattern here is the mix of tactics. Some callers from 0251355791 hang up immediately upon connection, a classic "number validation" technique used to confirm active numbers for later scam targeting. Others deliver robocall surveys asking about voting intentions. Contributors describe these calls as deliberate nuisance activity rather than legitimate business contact.
What Callers from 02 5135 5791 Do
Contributors report two distinct caller behaviours from 02 5135 5791. The first involves silent calls where the person answers but the caller either mumbles nonsense or hangs up immediately. One contributor noted the person "mumbled nonsense then hung up straight away." Another described picking up to find no one on the line, with no voicemail left behind.
The second pattern involves robocall surveys. A contributor received a recorded call asking "if I'd vote Labor or not," part of a broader political polling campaign. Another report describes a caller asking which political party they planned to vote for, despite no election being imminent. These calls from 0251355791 are characterised as survey spam with no legitimate purpose.
One contributor noted that 02 5135 5791 appeared to be cloned from the Rye Park area south of Canberra and was "associated with scammers." This suggests the allocated number may have been compromised or spoofed by callers using the Rye Park location as cover.
Call Patterns and Timing
Reports for 02 5135 5791 span from July 2023 to November 2025, showing sustained activity over 2+ years. Silent calls cluster around March 2024 (two separate incidents) and July 2024 (survey robocall followed by another survey call). One contributor received a call on a Sunday afternoon, suggesting callers from 0251355791 operate across different days and times.
The geographic spoofing is notable. One contributor answered calls appearing to originate from three different locations: Caven (described as "an area with no towns in it according to Google maps"), Canberra, and Gearys Gap (also noted as having no towns). This spoofing behaviour is a strong indicator of deliberate misrepresentation, common in scam and nuisance call operations. Another report specifically flags Rye Park NSW as the source, matching the allocated provider location.
What to Do If You Receive a Call from 02 5135 5791
If 02 5135 5791 calls you, take these precautions:
- Do not: Answer if you don't recognise the number, return the call, engage with survey questions, or provide any personal information
- Do: Let it go to voicemail, block the number immediately after the first call, and note the time and date for reporting
- If you answer by mistake: Hang up immediately if you hear silence, mumbling, or a robocall voice. Do not press any buttons or respond to prompts
- For robocall surveys: Do not answer political polling questions or engage with the automated system, as this confirms your number is active and monitored
- Block permanently: Use your phone's native blocking feature to prevent future calls from 0251355791
How to Report 02 5135 5791
If you receive unwanted calls or surveys from 02 5135 5791, report the activity to Australian authorities:
- ACMA (Australian Communications and Media Authority): Report silent calls, spoofed numbers, and robocalls at acma.gov.au. ACMA investigates network abuse and can take action against persistent offenders
- Scamwatch: If the call appears fraudulent, report at scamwatch.gov.au with details of the caller's claims and your experience
- Do Not Call Register: If the call was a survey or marketing attempt, register your number at donotcall.gov.au to opt out of future contact
- Reverseau: Contribute your own report here to help other Australians identify this number's behaviour and protect the community
Help others by sharing your experience with (02) 5135 5791!
WRITE A REVIEWRatings Distribution
What Our Users Reviewed
Did answer call as it was coming from three different places, Caven (an area with no towns in it according to Google maps), Canberra and Gearys Gap (another area with no towns in it).
Person hung up right away, typical spam tactic to confirm number's active
Called Sunday afternoon from Rye Park NSW, no message
Person called asking which political party i plan to vote for, no election in years, reverse lookup said it was a scam so i blocked it
Recorded call with survey asking if I'd vote Labor or not
Survey spam call, definitely a waste of time
Bogus, blocked
Answered call, person mumbled nonsense then hung up straight away
Answered the call, they didn't leave a message, suspect it was a scammer
Didn't leave a message, relieved to avoid potential scam
appears to be cloned number from Rye Park south of Canberra, associated with scammers
Pre-recorded political survey, hung up and blocked
Left a recorded political survey, quite intrusive
Got calls today and yesterday around 6:30 PM from Rye Park, didn't answer, called back and line wouldn't connect, seems like scam from other reports
Called twice in a few days, no one on the line when I answered
Call at 5:30 PM on Feb 23, 2023, no voicemail left
Got a call at 7 PM from unknown number, no message left
Called and was identified as scam.
Did not answer and blocked number.
Following review on this site appears blocking is warranted.
Same situation as before, suspect it's scam. These persistent callers are annoying
Didn't answer, no message left. Blocked nearly 500 similar numbers since 2020
Receiving calls from this number every day for a few days, blocked it
Got a call on mobile around 10 AM Saturday, didn't recognize it
Called during dinner time
Had previously blocked this number, it called again with no message. Also getting multiple calls from different 02 numbers
Got a call on Sunday arvo, no voicemail left. Found it suspicious and blocked it
Called six times on Sunday, September 18th. Fed up, blocking them now
Called at 4 PM on Sunday, didn't answer. Second call from them, first one was 9:12 PM Monday. Blocked it now
Got a call at 7:20 PM Friday, no voicemail left, could be telemarketer or scam
Called from Rye Park, no message left, suspect scam
Called at 5:24 PM on March 30, 2022 from Rye Park NSW number. Didn't answer, they hung up without speaking
No message when I answered
Called but no voicemail or indication of who
Called at bad time with no message, called back twice today with no answer, blocked the number
Called at 7:47 PM outside normal hours, no message left. Got several similar calls from related numbers, all no voicemail
Blocked this number but they called again and went to voicemail with no message, I enjoy wasting their time so they don't scam someone else
Called and I answered, some stupid voice recorded crap survey about political parties so I hung up. I am on the Do Not Call Register. GO AWAY!!!!!
Pre-recorded survey about political parties, found it annoying. I'm on the Do Not Call list
Voicemail with answers to survey questions about political parties
Called twice in a row, no voicemail
Call at 6:55 PM but didn't answer
Recorded message looks like political spam
Scam.
Help others by sharing your experience with (02) 5135 5791!
WRITE A REVIEWFrequently Asked Questions
Why does 02 5135 5791 appear to call from different locations?
Contributors report 0251355791 appearing to originate from Canberra, Caven, Gearys Gap, and Rye Park in separate calls. This is likely number spoofing, where callers mask their true origin using technology that makes calls appear to come from different areas. One report explicitly notes the number appears "cloned" from the Rye Park area. This tactic makes it harder to trace the actual caller and is a red flag for scam or nuisance activity.
What does it mean when 02 5135 5791 hangs up immediately?
When a caller from 0251355791 hangs up right away or mumbles then disconnects, it's typically a 'number validation' check. Scammers and nuisance callers use this tactic to confirm your number is active and monitored by a real person. Once confirmed, your number may be added to targeted scam or spam lists. If 02 5135 5791 does this, block the number and do not return the call.
Is the robocall survey from 02 5135 5791 legitimate?
No. Contributors report receiving automated survey calls from 0251355791 asking about voting intentions for political parties, with no election occurring at the time. Legitimate political polling is conducted by registered organisations and does not use spoofed numbers appearing to come from multiple locations. These robocalls from 02 5135 5791 are spam designed to waste your time and confirm your number is active.
Can I report 02 5135 5791 to the Do Not Call Register?
Yes. If 0251355791 called you with a survey or marketing message, you can register your number at donotcall.gov.au to opt out of future unsolicited calls. However, this number's pattern of silent calls and spoofing suggests it may not be a legitimate telemarketer. For robocalls and spoofed numbers from 02 5135 5791, also report to ACMA at acma.gov.au for investigation.
Should I be concerned about my data if 02 5135 5791 called me?
If you answered a call from 0251355791 and did not provide personal information, your immediate risk is low. However, the fact that callers knew some contributors' locations suggests possible data sourcing. One report notes the caller already knew the recipient's full name and suburb. If 02 5135 5791 had personal details about you, monitor your accounts and consider checking your credit file via ASIC's MoneySmart or Equifax for unauthorised activity.
What should I do if I accidentally answered and gave information to 02 5135 5791?
Block 0251355791 immediately and do not return the call. If you shared sensitive information like bank details, passwords, or tax file number, contact your bank and relevant agencies (Services Australia for tax-related issues, myGov if credentials were compromised). Monitor your accounts closely for suspicious activity. Report the call to Scamwatch at scamwatch.gov.au and ACMA at acma.gov.au with details of what information was disclosed.