Is the intercom code the same as the button I press to open the door?

No. The intercom code is what a visitor punches into the lobby panel to ring your unit. The door-release is separate: on a call-box style intercom that dials your phone, it is a key you press during the call, usually 9 and sometimes 6. On an older wall-handset intercom it is a physical door button on the unit inside your apartment. One is for the person outside, the other is for you inside.

A delivery app is asking for an intercom or gate code. What do I enter?

Enter the directory or unit code that rings you, and add a note like 'select unit 214, the intercom calls my phone to let you in.' If your building has a real keypad code that unlocks the lobby without calling anyone, you can put that instead so the driver lets themselves in. When you are unsure which your building uses, your unit number plus your phone number in the notes covers both cases.

Is a permanent building intercom code safe to share?

A fixed lobby code is convenient but it is a standing risk. It never expires and cannot be traced to one person, so every past tenant, ex-roommate, and one-off visitor who ever learned it can still open the front door. If your building supports per-visitor codes you can change or expire, those are far safer than one number everyone keeps forever.

Blog / What Is an Intercom Code? Apartment Intercom Codes Explained

What Is an Intercom Code? Apartment Intercom Codes Explained

By Ty · 2026-07-16

A delivery app asked for your “intercom code,” or a guest is standing at the lobby panel texting to ask what to enter, and you realized you are not certain what yours is. In most US apartment buildings your intercom code, sometimes called a directory code, dial code, or call box code, is simply the number a visitor enters on the entry panel to ring your unit. It is usually your apartment number or a short directory code the building assigned you. Entering it places a phone call to your phone, and you let the visitor in from there. (In Canada the same panel and code are usually called a buzzer and buzz code; it is the same system.) Here is how to find yours and what to tell people at the door.

How to find and use your intercom code

Look at the entry panel by the front door, where units and codes are typically listed, or check your lease or move-in packet. If neither shows it, the building office can confirm it in seconds. Keep in mind that in most buildings this code only rings your phone, it does not unlock the door on its own. A smaller set of buildings also issues a fixed keypad code that opens the lobby without calling anyone. Here is how the common ways to get someone in compare:

Option	Pros	Cons
Your unit’s dial code (visitor rings you)	Nothing to set up, works from move-in day	Only opens the door if you are free to answer the call and press the release key, usually 9
A permanent lobby keypad code	Opens the front door directly, no call to answer	Rarely changes, and everyone ever given it still has it, so it is a standing security gap
Be home to open the door yourself	No code or call needed	Only works when you are home and can go down to the door
Lowkey	Gives you a 4-digit passcode you control per visitor, or lets them in automatically, and you can change or expire it anytime	Quick one-time setup with your building

If you only need to know what to tell a driver or a guest, give them your unit’s dial code and stay reachable for the call. If you are tired of having to answer at all, a code you control is the better fit.

Where Lowkey helps

If your intercom dials out to a phone number, which covers most apartment and condo call boxes, Lowkey gives you a real intercom code instead of a borrowed one. You set a 4-digit passcode that a visitor types on the building keypad, and Lowkey opens the front door for them automatically, with no call to catch. You can hand a different code to a dog walker, a houseguest, or a delivery, schedule it to work only during the window you expect them, and change or expire it whenever you want.

It is software with nothing to install on the wall, so any resident on the account can manage codes from their phone. You get a push notification and an activity history every time a code is used, all on 99.99% uptime, and the 14 Day Trial lets you confirm it works on your building’s panel first.