What is an UPC-A or UPC-12 barcode?

<p>

UPC-A barcode encodes GTIN-12 ( Global Trade Identification Number) and consists of:
</p>
<ul>
<li>UCC (GS1 US) Company Prefix</li>
<li>Item Reference</li>
<li>Check Digit</li>
</ul>
<p>
GS1 US&nbsp;Company Prefix and Item Reference Number are of variable length, the total length of UPC-A barcode carrying GTIN-12 is 12 digits.
</p>
<p>
You can generate UPC-A following this link:&nbsp;&nbsp;
<a href="https://www.barcoderobot.com/ean-13.html">https://www.barcoderobot.com/upc-a.html</a>
</p>
<p>
The example below demonstrates most common combinations:
</p>
<p>
<img src="https://s3.amazonaws.com/helpscout.net/docs/assets/529d931de4b010488044b83a/images/54735c34e4b07e8a335a1a07/file-Ni5TJ4mxcp.png" style="width: 497px;">
</p>

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