The Department of Social Protection has issued a warning about scam phone calls from people claiming to be department officials.
The department said that the call displays a range of numbers, including its own helpline number, which is 1890 800 024.
It said that it was not contacting customers or members of the public through the number.
People have been urged not to engage with the calls or share any personal information.
In a statement, the department said that its staff will never ask members of the public for their Personal Public Services number or any bank details if they make contact with people over the phone.
It urged people to contact gardaí if they receive such a call from the number.