Objective
This article explains the high risk category in Voice geo permissions, where to find the guidance Twilio provides about toll fraud, and how the high risk table lets you enable a specific number range rather than a whole country.
Product
Programmable Voice
Environment
Twilio Console
User Account Permission/Role(s) Required
Read access to account settings, billing usage, and Voice geo permissions is required to open the page.
Procedure
- In the Twilio Console, select Communications in the left sidebar.
- Select Voice, then Settings.
- Select the Geo permissions tab, then select the High risk tab.
- Read the page description: "These destinations are known to have a high risk of toll fraud. We recommend enabling only those destinations you must call."
- Review the High risk countries for toll fraud callout at the top of the page. It advises preventing account takeovers by enabling Two-Factor Authentication (2FA) in your account settings, and links to the Toll Fraud Guide and Twilio's Anti-Fraud guide.
- Expand a continent row to see its countries, then expand a country row to see its individual prefix groups.
- Enable only the prefix groups you actually need to call, using the toggle in the Enable destination column.
Additional Information
- Toll fraud is also called International Revenue Sharing Fraud (IRSF). Twilio segments destinations by IRSF risk so that you can leave the riskiest ranges closed by default.
- The High risk countries for toll fraud callout appears only on the High risk tab, not on Low risk.
- The low risk table has two levels (continent, then country); the high risk table has three (continent, country, then prefix group), giving you finer control over exactly which ranges are reachable.
- Most businesses only need to call low risk destinations.
This content was generated by AI and reviewed, edited, and verified by a human.