What Does Star 67 Do on the Telephone?
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Star (*) 67 can be dialed on a telephone prior to inputting the desired contact number; this prevents the dialer’s number from being seen on the Caller ID by the individual on the receiving end of the phone call. This feature allows the caller to remain anonymous.
Utilizing star (*) 67 blocks both the name and the phone number from being seen. However, the caller must redial the prefix at the beginning of each call in order to maintain anonymity. The prefix may be used from land lines and cell phones, unless the feature has been disabled by the subscriber.