HID 33bit - (D10202)

Everything you need to understand HID 33bit - (D10202)

Card format Overview

A proprietary 33-bit card format used in access control systems, featuring a unique structure composed of 7-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.

HID 33bit - (D10202) format properties

Site Code

7 bits. The facility code range is 0 to 127.

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 17-32.

Generate examples

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

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The API that turns phones into key fobs.