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Short Message Service:SMS Sender ID Registry (SSIR) policy update: Retention for unregistered IDs

Last Updated:Sep 29, 2025

Announcement Details:

IMDA provides an update on the Full SMS Sender ID Registry ("SSIR") Regime, which commenced on 31 January 2023. The impact of anti-scam measures on businesses and consumers has been under close scrutiny during the 6-month transitionary period.

The current approach of converting non-registered Sender IDs to "Likely-SCAM" will remain in effect and will not be block until further notice. IMDA assures Participating Licensees of sufficient time for adjustments if any changes occur.