36bit test

Everything you need to understand 36bit test

Card format Overview

A proprietary 36-bit card format used in access control systems, featuring a unique structure composed of 18-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.

36bit test format properties

Site Code

18 bits. The facility code range is 0 to 262,143.

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 1-17.

Odd parity

Odd Parity for Odd parity over bits 18-35.

Generate examples

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

Site Code

Card Number

Get examples

Here's your example