What does *82 do on a cell phone?

What Does *82 Do on a Cell Phone?

Ever gotten a call from "Private Number" and wondered who’s on the other end? If you're in the U.S., there’s a simple trick you can use: dialing *82 before the phone number.

This code is known as a Vertical Service Code, and it’s designed to override caller ID blocking on a per-call basis. In plain terms, if someone has their number hidden and calls you, you can use *82 to reveal it—provided they’re not using a more secure blocking method. It works the same way when you’re making outgoing calls: dialing *82 first forces your number to show up on the recipient’s caller ID, even if your line is normally set to private.

It’s particularly useful when calling businesses or services that won’t answer blocked numbers. Many automated systems or customer service lines reject calls from private numbers, so using *82 ensures your call goes through.

While *82 is supported by most carriers in the U.S., it’s not guaranteed to work everywhere—especially with landline carriers or international numbers. And it only applies to domestic calls; it won’t unblock numbers on international calls.

Interestingly, its counterpart—*67—does the opposite: it blocks your number for that one call. So while *67 hides your identity, *82 reveals it, giving you control depending on the situation.

It's a small but handy tool tucked into the dialer of your smartphone. No app needed, no settings to change—just punch in *82 before the number and hit call. In a world of complex apps and digital noise, it’s refreshing to know something so simple still works.