• Fraud Prevention: A financial institution or other business can use the API to verify whether the customer’s mobile device is in the expected country. For example, online transactions originating from outside the customer’s home country may be fraudulent if the customer’s mobile device is not roaming. Similarly, it can be expected that the customer’s device will be roaming in a country where their bank card is currently being used for a transaction.
• Content Restrictions: A streaming service uses the API to prevent users from watching content outside of licensed regions. For example, a user who is currently travelling in another country cannot watch content restricted to a different country.
• Advertising: An advertiser uses the API to ensure that advertisements are only displayed in specific countries or regions. By verifying the roaming status of the device, the advertiser can ensure that the advert reaches the desired audience and is not shown to a user in an unauthorized area.

See also at GSMA:

• Frictionless Identity Verification for Fraud Prevention: Frictionless Identity Verification for Fraud Prevention
• Territory Restrictions for Content: Territory Restrictions for Content
• Passenger Experience: Passenger Experience

• Real-time Roaming Status: Retrieve the roaming status of a device in real-time, including the country in which the device is roaming.
• Regulatory Compliance: Ensure compliance with regulations for different regions and countries.
• Fraud Prevention: The API can be used to detect and prevent fraudulent activities, such as when a device is located in an unexpected country, or to prevent transactions originating from unauthorised countries.
• Customer Experience: Tailor the customer experience to the country in which they are currently working or travelling.