# Keyscan C15001

Everything you need to understand Keyscan C15001

## Card format Overview

A proprietary 36-bit card format used in access control systems, featuring a unique structure composed of 8-bit site code, 16-bit card number, and 10-bit oem, and 2 parity bits (even and odd), allowing for easy management and avoiding card number duplication for secure, contactless access.

## Keyscan C15001 format properties

### Site Code

8 bits. The facility code range is 0 to 255.

### Card Number

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

### OEM

10-bit OEM code.

### Even parity

Even Parity for Even parity over bits 1-18.

### Odd parity

Odd Parity for Odd parity over bits 19-35.

### Generate examples

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

### Site Code

### Card Number

### OEM

Get examples

#### Here's your example

| Format   | Value                             |
|----------|-----------------------------------|
| Hex      | C8C800C8<br>Copy                   |
| Decimal  | 3368550600<br>Copy                 |
| Binary   | 000011001000110010000000000011001000<br>Copy |

## The API that turns phones into key fobs.