How many codes can a gate keypad hold, and how do I change them?

Most gate keypads support far more than just one shared code — many systems allow anywhere up to several hundred separate codes, which lets a property assign individual codes to different households, family members, or regular visitors rather than everyone sharing one PIN.

Why individual codes are worth using

Assigning separate codes rather than one shared PIN has real practical benefits: it’s easier to track who’s coming and going (on systems that log entries), and — most importantly — it means a single code can be deleted without disrupting access for anyone else. If a code was given to a contractor for a one-time job, a departing tenant, or a service that’s no longer used, that specific code can simply be removed instead of having to change and redistribute one shared code to everyone who legitimately still needs access.

The general process for changing codes

While the exact button sequence differs by keypad manufacturer and model, the general process usually involves: entering a master or programming code (set during installation) to put the keypad into programming mode, selecting the code slot to add, delete, or change, entering the new PIN (or confirming deletion), and exiting programming mode to return the keypad to normal operation. Most manufacturers publish these exact steps for their specific model, since getting the sequence wrong can sometimes lock the master code itself, which is more disruptive to fix.

Why static codes need periodic attention

A keypad code, once shared, has no built-in way to expire or restrict itself to a single visit unless the specific system supports time-limited or single-use codes. In practice, codes get shared more widely than originally intended — a resident tells a friend, a code gets written on a delivery note, or it’s simply remembered and used long after it was meant to be temporary. Periodically reviewing which codes are still needed, deleting any tied to former residents, past contractors, or one-off visits, and rotating the general “guest” code if one exists are reasonable habits rather than excessive caution — see our related post on keypad code security for more on this.

A practical review habit

Treating a keypad code list the way you’d treat a spare house key list — reviewed occasionally, not handed out casually, and cleaned up when someone’s access is no longer needed — keeps a keypad system from quietly becoming less secure over time than it was on install day.