K32 - Bit Format Details - AccessGrid

K32

Everything you need to understand K32

Card format Overview

A proprietary 32-bit card format used in access control systems, featuring a unique structure composed of 8-bit site code and 16-bit card number, and 2 parity bits (even and odd), allowing for easy management and avoiding card number duplication for secure, contactless access.

K32 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.

Even parity
Even Parity for Even parity over bits 1-13.

Odd parity
Odd Parity for Odd parity over bits 14-30.

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 80C800C8
Copy
Decimal 2160591048
Copy
Binary 10000000110010000000000011001000
Copy

The API that turns phones into key fobs.

Get started