IMSI Query

The IMSI Query service identifies the 15-digit IMSI number of the mobile subscriber’s phone number (MSISDN). The IMSI (International Mobile Subscriber Identity) is a unique number which identifies the mobile subscribers in GSM and UMTS networks. This IMSI information is retrieved directly from the SS7 network.


By using this service, Wireless Application Service Providers, MVNOs, MVNEs, SMS aggregators and resellers, mobile infrastructure providers, mobile operators and Push-to-Talk service providers are optimizing their SMS routing and / or enabling Push-to-Talk (PTT) service.

Optimization of SMS Routing

IMSI Query checks the full IMSI information of mobile subscribers, which is based on the MSISDN. The knowledge on IMSI number allows proper routing and optimization of SMS messages and enables certain Push-to-Talk (PTT) services.

IMSI information for Mobile Security

IMSI Query provides subscriber information for authentication and authorization of the user in mobile security applications and scenarios.

International IMSI Identification

IMSI Query enables the IMSI identification, providing a true international mobile number identification service. Additionally, TynTec provides customers with technical support and customer care, which are available 24/7/365.

Services enabled by IMSI Query

  • The IMSI number identification is used for international handling of SMS messages sent via SS7 signaling
  • The IMSI number identification is used for Push-To-Talk services
  • IMSI Query provides information for routing and optimization of telecommunications infrastructure

For more information

Request here more information about TynTec's IMSI Query or send an email.


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