# Wiegand 32bit

Everything you need to understand Wiegand 32bit

## Card format Overview

A proprietary 32-bit card format used in access control systems,
featuring a unique structure composed of
12-bit site code and 16-bit card number,
allowing for easy management and avoiding card number duplication for secure, contactless access.

## Wiegand 32bit format properties

### Site Code

12 bits. The facility code range is 0 to 4,095.

### Card Number

16 bits. A unique serial number (0-65,535) for each card within that facility code.

### Generate examples

Put in the values for this card format, we'll generate the results in a few different formats.

#### Here's your example

| Format | Value |
| --- | --- |
| Hex | 640064<br>Copy |
| Decimal | 6553700<br>Copy |
| Binary | 00000000011001000000000001100100<br>Copy |