SMS Sender ID Registry: Important Information for Organisations using SMS Services
Does your organisation use an SMS service (A2P SMS) to communicate with donors, clients, service users or other stakeholders? The communications regulator ComReg is creating an SMS Sender ID Registry in response to the growing problem of text scams.
What is the SMS Sender ID Registry
The SMS Sender ID Registry is a secure repository of registered SMS Sender IDs, registered Sender ID Owners (SIDOs), Participating Mobile Service Providers (MSPs) and Participating Aggregators (PAs). Participants must adhere to the rules of operation of the Registry. Later in 2025, text messages with unregistered SMS Sender IDs will be blocked.
The Registry is being introduced following a formal decision by ComReg published in April 2024
Actions and deadlines
- Make sure that your SMS Sender IDs are pre-registered with ComReg by 25 February 2025. SMS Providers can complete the pre-registration process on behalf of your organisation.
- After pre-registration, organisations will need to confirm the acceptance of their SMS Sender ID pre-registration by email. ComReg will provide instructions on how to do this.
- From 3 July 2025, SMS messages with unregistered Sender IDs will be labelled as “Likely Scam” and, from 3 October 2025, they will be blocked.
You must ask your SMS Provider to pre-register your SMS Sender ID(s) before the 25 February 2025 deadline to prevent a disruption to your SMS services.
For further information, please see www.comreg.ie/senderid.