# AWID RS2 34bit

Everything you need to understand AWID RS2 34bit

## Card format Overview

A proprietary 37-bit card format used in access control systems, featuring a unique structure composed of 8-bit site code and 24-bit card number, and 2 parity bits (even and odd), allowing for easy management and avoiding card number duplication for secure, contactless access.

## AWID RS2 34bit format properties

**Site Code**  
8 bits. The facility code range is 0 to 255.

**Card Number**  
24 bits. A unique serial number (0-16,777,215) for each card within that facility code.

**Even parity**  
Even Parity for Even parity over bits 1-16.

**Odd parity**  
Odd Parity for Odd parity over bits 17-33.

### Generate examples

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

**Site Code**  
**Card Number**  
Get examples

#### Here's your example

| Format | Value |
| --- | --- |
| Hex | 1640000640  
Copy |
| Decimal | 95563023936  
Copy |
| Binary | 1011001000000000000000000011001000000  
Copy |

## The API that turns phones into key fobs.