What does "82" before a phone number mean?

Dialing *82 before a phone number when placing a call unblocks an otherwise private phone line. If a person desires to have a private number revealed for the purposes of one call, dialing *82 before that number accomplishes this task.

Dialing *82 before a number is useful if a person maintains a normally private number or line and needs to place a call to a telephone exchange that does not accept calls with private numbers. Code *82 must be dialed every time a person desires to lift the privacy of his or her phone line when making a specific telephone call.