6 articles.
Fraud prevention
For number providers, MVNOs and virtual-number resellers: quarantine rules by country, the FCC database, and HLR and app-account checks before reissue.
12 min read
Research
We counted all 11,467 published FCC Robocall Mitigation Database filings: 42% certify full STIR/SHAKEN, 36% rely on mitigation only. Data and method.
8 min read
Fraud prevention
What STIR/SHAKEN attestation levels A, B and C mean, what they don't prove, how they relate to spam labels, and the rules in the US, Canada and France.
8 min read
Fraud prevention
Phone number reputation is a score built from complaints, reports and call patterns. Where the data comes from, what it can't tell you and how to use it fairly.
7 min read
Research
Our analysis of 362,116 FTC Do Not Call complaints and FCC unwanted-call data: top subjects, robocall share, weekday pattern and trend.
8 min read
Guides
What the FCC Reassigned Numbers Database does, how its yes/no/no-data answers and TCPA safe harbor work, what it costs, and where other checks fit.
8 min read
