# HID Standard 34bit - (H10306)

Everything you need to understand HID Standard 34bit - (H10306)

## Card format Overview

A proprietary 34-bit card format used in access control systems, featuring a unique structure composed of 16-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.

## HID Standard 34bit - (H10306) format properties

### Site Code

16 bits. The facility code range is 0 to 65,535.

### 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 1-16.

### 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     | 200C800C8<br>Copy                         |
| Decimal | 8603041992<br>Copy                        |
| Binary  | 1000000000110010000000000011001000<br>Copy |