Executive Summary
Based on community reports submitted to Reverseau between 1-31 December 2025. Classifications and patterns below come directly from what people reported.
Contributors submitted 1,531 reports across 1,240 distinct numbers in New South Wales - a notable decrease of 41% compared to November 2025.
The leading classification was Scam at 26%.
Most reports came from Sydney, followed by Parramatta and Blacktown.
NSW's 26% scam rate tracked close to the national average of 21%.
Uncertain and Suspicious actually outpaced scam this month, making the overall classification mix broader than usual. The NSW data dashboard has up-to-date numbers and classifications.
Classification Breakdown
How people in NSW classified the numbers they reported this month.
Scam led at 26% - unchanged from November 2025.
Top Reporting Areas
Areas in New South Wales with the most reports this month.
Sydney generated 1216 reports - more than double Parramatta's 36. See the area pages above or the NSW data dashboard for full breakdowns.
Month-to-Month Comparison
Compared to November 2025, New South Wales saw a notable decrease of 41% in report volume.
Seasonal Context
The 41% drop in December is substantial. This often follows a particularly active prior month - elevated periods tend to revert.
Notable Changes
Scam accounted for 26% of classified reports in December.
Even with the 41% drop statewide, Sydney still logged 1216 reports - the decline was spread across most areas.
Trends & Observations
Several numbers collected reports in a short time frame and were quickly classified as scam by contributors.
Numbers Picking Up Reports Quickly
10 numbers in NSW picked up multiple reports in a short period this month, which typically indicates active call campaigns.
Flagged numbers averaged 6 reports each, meaning multiple people encountered them independently.
Reports on these numbers came from multiple areas across NSW, which points to automated dialling rather than calls targeting a single region.
Mixed Classifications
Some numbers got both scam and non-scam reports during December 2025. This can happen when a legitimate number is being spoofed, when a business number starts getting used for something else, or when people simply aren't sure what the call was about. These are worth keeping an eye on.
Previous Month's Flagged Numbers
Numbers that were trending in November 2025 - did they continue or go quiet?
Safety Tips
- Don't call back unknown 02 numbers without checking them first.
- The ATO, Centrelink, and Medicare won't threaten you over the phone. If someone claims to be from a government agency, hang up and call the official number yourself.
- Don't tap payment or delivery links in texts from numbers you don't recognise.
- Got a suspicious call? Report it - every report helps other people in New South Wales.
- Look up numbers on Reverseau before calling back.
How We Compiled This
Built from community reports submitted to Reverseau between 1-31 December 2025. All data is aggregated and anonymised.
- Source: First-hand reports from the community.
- Scope: Numbers allocated to New South Wales (NSW).
- Period: 1-31 December 2025.
- Classifications: Chosen by the person who reported the number.
- Limitations: This is what people reported, not verified telecom records. Volume depends on how many people use the platform.
More detail on our methodology page. Full dataset on the NSW data dashboard.