USPS Intelligent Mail Barcode Generator
Generate a USPS Intelligent Mail barcode, the 65 bar four state code that the United States Postal Service reads on letters and flats. Enter the 20 digit tracking code with an optional 5, 9 or 11 digit routing ZIP code. The tool checks the length and the barcode identifier and draws the barcode as a PNG image or an SVG file for mailers and print shops.
Frequently asked questions
What do I enter in the Intelligent Mail Barcode Generator?
Enter the 20 digit tracking code followed by the routing code, which is empty or a 5, 9 or 11 digit ZIP code. The total is therefore 20, 25, 29 or 31 digits. Spaces and hyphens are ignored, so you can separate the parts.
How is the 20 digit tracking code built?
It consists of a 2 digit barcode identifier, a 3 digit service type identifier, a 6 or 9 digit Mailer ID assigned by USPS and a 9 or 6 digit serial number. The tool checks the overall length and the barcode identifier but cannot verify your Mailer ID.
Why was my barcode identifier rejected?
The second digit of the barcode identifier must be from 0 to 4, as the USPS specification requires. A higher digit cannot be encoded, so the tool refuses it with a message.
What is a four state barcode?
Each of the 65 bars has one of four forms: full, ascending, descending or tracker. The combination encodes the data together with an error detection code, and the barcode is read by mail sorting equipment.
Can I download the Intelligent Mail barcode as a vector file?
Yes. Choose SVG for a vector file that stays sharp at any size in print and design software, or PNG for a raster image that works in documents, web pages and label printers. Both come with a white background and a white margin.
Can I change the bar height?
No. USPS specifies the bar dimensions of the Intelligent Mail barcode, so the tool draws the standard proportions and offers only the scale. Print at the nominal size of about 3 inches wide for mail pieces.
Can I print the digits under the barcode?
Yes. The human readable text option prints the encoded digits below the bars and is on by default. Turn it off if your address block shows them elsewhere or not at all.
Does this barcode replace POSTNET?
Yes. The Intelligent Mail barcode replaced the older POSTNET and PLANET barcodes, which USPS no longer accepts for automation prices.
Will my mail qualify for discounts?
Automation and Full Service prices also depend on a registered Mailer ID, unique serial numbers, address quality and the mailing documentation. The barcode alone does not qualify a mailing.
Is my data stored?
No. The digits are used only to draw the barcode image you download.