The Do Not Originate (DNO) List


ComReg, the Irish communications regulator, is teaming up with other telecoms regulators around the world to stop annoying phone calls, texts, and emails. You know the ones – they’re a total nuisance and can even be used to scam people.

What is the DNO List?

The DNO List is a list of inbound-only phone numbers that companies should not use to make outbound calls. This is because scammers and fraudsters often use fake caller ID numbers to trick people into answering their calls. By using the DNO List, companies can help prevent these scams and protect their customers.

ComReg has encouraged all telecoms operators in Ireland to implement DNO to protect Irish consumers and businesses. Telecoms operators can access the DNO List and use it to block calls from these numbers.

What numbers should be included on the DNO List?

The following types of inbound-only phone numbers for DNO List:

  • Phone numbers that have a high likelihood of being scammed, including geographic numbers e.g. such as 01, 021 numbers, and Non-Geographic Numbers e.g. 1800 and 0818 numbers
  • Phone numbers that have been scammed in the past
  • High-profile or widely advertised phone numbers e.g. numbers on bank cards, public service numbers
  • Phone numbers with high volumes of consumer traffic

How do I apply to add a number to the DNO List?

Organisations wishing to apply to add numbers to the DNO List should refer to the Guidance Note and Application Form.

Is there a fee to add numbers to the list?

There is no fee to add or remove a number from the DNO List.

For more information on the DNO List

On ComReg’s page, you can find more information about the DNO List, including how to access it, how to report numbers that should be added to the list, and how to implement it as a telecoms operator.

So, there you have it! ComReg is doing its best to stop these annoying messages and make our phones and inboxes a little bit more peaceful. If you get one, report it and help ComReg out!