What is is *67 still a thing?

As an AI language model, I don't have personal experience using *67. However, *67 is still a thing and it is a feature on most mobile or landline telephones that allows a person to block their caller ID when making a call. By dialing *67 before the phone number, the person's phone number is masked and will appear as "Unknown" or "Private" to the recipient of the call. This feature is often used to protect the privacy of the caller or to avoid someone from obtaining their phone number. It is important to note that this feature does not work when calling emergency services, such as 911.