Sensitive notifications

Organizations that handle sensitive data—such as banks, healthcare providers, and insurance companies—rely on mobile numbers to communicate critical information, from transaction alerts to medical results and policy updates. When a number is recycled or reassigned, these notifications can reach the wrong person, creating privacy risks, regulatory non-compliance, and a loss of customer trust.

Integrating the Number Recycling API allows for real-time validation that a number still belongs to the legitimate recipient before sending personal or financial information. With this pre-verification, organizations can strengthen the security of their sensitive communications, prevent accidental leaks, and ensure a more reliable experience for their users.

APIs used

Secure authentication and account access

Digital platforms, financial institutions, and online service providers use mobile numbers as a primary trust factor for two-factor authentication and secure account access. However, the frequent reassignment or recycling of numbers means that sensitive codes—such as one-time passwords (OTPs), login links, or recovery keys—can be accidentally sent to a new owner, exposing users to risks of privacy breaches, fraud, and account takeover.

Integrating the Number Recycling API allows for real-time verification of whether a number has changed ownership since a specific date before sending any confidential credentials or notifications. This verification, provided directly by the telecommunications operator, ensures that only the legitimate user receives access codes. This enables organizations to strengthen the security of their authentication processes, reduce fraud attempts, and ensure GDPR compliance by using accurate, up-to-date, and privacy-friendly data.

APIs used

Account recovery and password reset

Digital services often rely on phone numbers as the primary channel for recovering credentials or restoring account access. However, when a number has been recycled or reassigned, recovery codes or reset links can reach a new subscriber, exposing sensitive information and opening the door to account takeover.

The Number Recycling API allows for real-time validation of whether a number still belongs to the legitimate user before initiating any recovery process. This data, verified directly by the operator, ensures that only the rightful owner can reset their password or regain access. In this way, organizations can protect their account restoration workflows, prevent accidental data breaches, and strengthen user trust by ensuring that their credentials always remain under their control.

APIs used

Improve confidence in transactions and risk assessment

Digital platforms and financial institutions need to continuously assess the trust level of sessions and transactions to detect anomalous behavior and potential threats. A phone number that has been recently recycled or reassigned can become an early indicator of risk, especially when combined with other contextual signals such as device ID, IP reputation, or unusual access patterns.

With the integration of the Number Recycling API, a real-time network signal can be provided that strengthens risk assessment models and improves the accuracy of decision-making. By identifying recent changes in number ownership, organizations can detect suspicious activity, prevent unauthorized access, and maintain regulatory compliance without compromising user privacy. This proactive verification layer helps ensure transaction integrity and strengthens trust in increasingly dynamic digital ecosystems.

APIs used

Ensuring data accuracy and regulatory compliance

Organizations that use mobile channels to communicate with their customers have a legal and ethical responsibility to ensure that the information sent always reaches the correct recipient. However, when a mobile number is recycled or reassigned, there is a risk that messages containing personal or transactional data could end up in the hands of a new user, which can lead to GDPR or CCPA violations and a significant loss of trust.

The Number Recycling API integration allows for real-time verification of whether a number still belongs to the same subscriber before sending any sensitive content. This signal, validated directly by the operator, acts as a preventative mechanism that protects privacy, reduces the risk of data breaches, and minimizes exposure to regulatory penalties. Furthermore, the API is designed in accordance with GDPR principles—accuracy, minimization, and privacy by default—enabling organizations to adopt more responsible and transparent communication practices aligned with current regulatory standards.

APIs used