Last updated: February 17, 2026
Open Gateway Sandbox ("the App") is an internal testing tool developed by Telefonica for validating Open Gateway APIs, including Number Verification and SIM Swap, using the GSMA TS.43 standard.
The App requests the READ_PHONE_STATE permission solely to retrieve device identifiers required by the TS.43 certification process. This information is used exclusively for authenticating the device with the mobile operator during testing.
The App does not collect, store, or share any personal data beyond what is strictly necessary for the API testing flow. No data is sold to third parties.
No personal data is retained after the testing session ends. Anonymous latency metrics may be stored for operational analysis.
The App communicates with Telefonica's Open Gateway aggregator to perform API calls. No data is shared with unrelated third parties.
For questions about this privacy policy, contact the Open Gateway team at Telefonica.