United States Postal Service logo. The profile of an eagle's head adjoining the words United States Postal Service are the two elements that are combined to form the corporate signature. QR code image is pictured in a graphic illustration of an envelope in a square.

Thanks for your interest in the Mobile Barcode Promotion from the U.S. Postal Service.® The promotion ended on August 31, 2011. We hope you will continue to consider using mobile barcodes for your promotional mailings. While you are here, please take a moment to refer to the “Resources” link above and the article at the right for helpful information on the benefits of mobile barcodes.

 

So what is a "mobile barcode" anyway?

A mobile barcode or QR code (short for Quick Response code) is a specific two-dimensional code readable by dedicated QR code readers and smartphones. The code consists of black modules arranged in a square pattern on a white background. The information encoded can be text, URL or other data.