GSMA Root Discovery Service

The GSMA Root Discovery Service is a globally available Internet service which acts as a central communication point for eSIM-enabled consumer devices, allowing them to acquire profiles destined for them on demand.

This eliminates the need for other methods, such as activation codes or primary device side-loading, meaning little end user interaction required. The service is built on the SM-DS entity described in the GSMA Remote SIM Technical Specification and Architecture, SGP.21 and SGP.22.

How to Works?

Once they have agreed a mobile subscription contract with an operator, the end user can retrieve the corresponding profile onto their device:

Service Availability

The GSMA Root Discovery Service is available now, having been launched in September 2017.

Connection to the Service

Connection of SM-DP+ and Alternative SM-DS entities to the GSMA Root Discovery Service is via contractual agreement, following the application process below.

Connection of LPA entities (LPAd and LPAe) to the GSMA Root Discovery Service is free. However, to assure correct operation of the DS service, mandatory interoperability testing is required via the Customer Test Environment (CTE). The GSMA’s Interoperability Test Plan will be supplied as part of the application process.

Access to the DS server is via a fair-use policy. LPA providers should contact the GSMA via for more information on how to connect.

Who can Apply?

The following organisations can apply for service at any time:

• SM-DP+ Providers
• Alternative SM-DS Providers
• Mobile Network Operators running their own SM-DP+ / Alternative SM-DS

How to Apply

Step 1

Download and complete application form DSA.1 below, which provides the GSMA with information about your organisation and system entities to be connected.

Step 2

Email the completed DSA.1 form to: You will receive a reply confirming receipt and validity of the form submitted, and the following:

  • a service contract;
  • details on how to connect your system entities to the CTE;
  • a copy of the Test Plan to be used for proof of compliance;
  • instructions on how to connect your system entities to the live service;
  • details of how to obtain the necessary eSIM digital certificates.

Step 3

Undertake interoperability testing of your system entities on the CTE using the GSMA Interoperability Test Plan.

Step 4

Review and sign the contract then email a scanned copy, together with evidence of the interoperability testing undertaken to:  You will receive a reply confirming receipt and how to make payment.

Step 5

Once payment has been made, service will be activated for your designated system entities.

Further Information
For further information on the GSMA Root Discovery Service, please contact the GSMA at

Key Documents



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