DNC Registry (Do Not Call Registry)
Singapore's Do Not Call (DNC) Registry lets people opt out of marketing calls, texts and faxes to their Singapore phone numbers; senders must check it before marketing to a number unless they hold consent.
The DNC Registry is run by the PDPC under the PDPA. It has three registers: the No Voice Call Register, the No Text Message Register and the No Fax Message Register.
Before sending a marketing call or message to a Singapore number, you must either check the number against the relevant register or hold clear and unambiguous consent. Check results are valid for 30 days.
Messages sent to an organisation for its business purposes can fall outside the DNC rules, but it's often hard to tell whether a mobile number is a business line. When in doubt, check. Treat WhatsApp messages to a phone number like text messages.
Checks are done at dnc.gov.sg. This is general information, not legal advice.
Source: DNC Registry
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