Phone numbers reported as nuisance by the Australian community, aggregated across all states and territories.
Nuisance calls sit between spam and legitimate contact - they are disruptive without being fraudulent. The ACMA defines nuisance calls broadly, and the Do Not Call Register offers some protection. Numbers listed here have been flagged by community members who experienced repeated disruption - silent calls, hang-ups, or aggressive sales that crossed the line.
Nuisance differs from spam in that the intent may not be commercial, and from suspicious in that there is no indication of fraud. Common sources include debt collectors, survey firms, and automated systems that call repeatedly without leaving messages. These numbers often appear on landline (02, 03) prefixes.
National Snapshot
Total Reports
91,722
Unique Numbers
66,224
Most Affected State
VIC
Top Prefix
48
Monthly Change
-19%
Last updated:
Nuisance Reports by State
How nuisance reports are spread across Australian states. Counts are absolute - population size varies significantly between states.
Risk levels are calculated from how many reports a number has and what people classified it as.
Common Patterns in Nuisance Activity
Nuisance call patterns in Australia tend to be persistent rather than seasonal, with the same numbers generating complaints over weeks or months.
Silent calls - Calls that connect but have no audio, often from predictive diallers that connect more calls than agents can handle
Repeated hang-ups - Multiple calls from the same number that disconnect immediately, sometimes several times a day
Aggressive sales - High-pressure tactics that cross the line from marketing into harassment, including refusal to take no for an answer
Debt collection - Frequent calls from collection agencies, sometimes targeting wrong numbers or disputed debts
Automated callbacks - Systems that call back repeatedly after a missed call, without leaving a message
Unlike scam numbers that burn through quickly, nuisance numbers tend to stay active for extended periods. They are commonly associated with landline area codes and 1300 prefixes.
What the Data Shows
91,722 community reports across 66,224 unique numbers form the basis of this dataset.
Victoria contributes the most reports (38% of total). Population differences affect absolute counts - see state breakdown for context.
The 02 prefix dominates among top-reported numbers, followed by 04 and 07.
Monthly volume has decreased by 19% compared to the prior month.
Nuisance accounts for 12% of all community reports, making it a notable category on the platform.
For official guidance, refer to Scamwatch (ACCC) and ACMA. Reporting on Reverseau helps surface patterns faster for other Australians.
Monthly Trends
Reports decreased by 19% in March 2026 compared to the month before. 1,220 unique numbers were reported.
Peak month: July 2025 (2,082 reports)
1.2k
May
1.7k
Jun
2.1k
Jul
1.8k
Aug
1.8k
Sep
1.7k
Oct
1.8k
Nov
1.1k
Dec
1.6k
Jan
1.7k
Feb
1.3k
Mar
311
Apr
* Current month is incomplete - reports still pending review may not yet be reflected.
Category Comparison
Scam Spam Suspicious
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Most Reported Nuisance Numbers
By prefix: 02 (9), 04 (4), 07 (3) among the most reported.
A nuisance call is disruptive without being fraudulent - repeated hang-ups, silent calls, aggressive sales tactics, or persistent callbacks that people find intrusive. The key distinction from spam is the level of disruption, and from scam is the absence of deceptive intent.
How do I stop nuisance calls in Australia?
Register on the Do Not Call Register (donotcall.gov.au), use your carrier’s call-blocking features, and report persistent callers to the ACMA. If a business keeps calling after you’ve asked them to stop, that’s a breach of the Spam Act and the Do Not Call Register Act.
Are silent calls considered nuisance calls?
Yes. Silent calls - where you answer and hear nothing - are a common form of nuisance. They are usually caused by predictive diallers connecting more calls than agents can handle, or by automated systems testing which numbers are active. ACMA limits the number of silent calls a telemarketer can make.
Can I report a nuisance caller to authorities?
You can report to the ACMA (acma.gov.au) for breaches of telemarketing rules, to the Do Not Call Register for unsolicited calls, and on Reverseau to help other Australians identify the number. If calls amount to harassment, your state police can also be contacted.
What is the difference between nuisance and spam calls?
Spam is typically commercial - telemarketing, robocalls, automated promotions. Nuisance covers a broader range of disruptive behaviour that may not be commercial: silent calls, repeated hang-ups, aggressive debt collection, or persistent callbacks from unknown numbers. Both are unwanted, but nuisance implies a higher level of personal disruption.
All data on this page comes from community reports and reflects contributor experiences, not legal findings. Classifications follow Reverseau’s methodology, built on transparency and community consensus. For official advice, refer to the ACMA and Scamwatch (ACCC).
Data coverage: 2014-Present · Last reviewed: · Source: Community-submitted reports