UPU SIO barcode generator
The UPU S10 identifier names international postal items with a service indicator, serial number, check digit and country code. It is printed as Code 128 on tracked mail.
Content
13 characters: 2 letters, 8 digits + check digit, 2-letter country. (13 characters)
Size and colour
Ready to download. Test-scan it before printing a large batch.
About UPU SIO
The UPU S10 identifier names international postal items with a service indicator, serial number, check digit and country code. It is printed as Code 128 on tracked mail.
Where it is used
- International tracked mail
- Registered post
What you can encode
13 characters: 2 letters, 8 digits + check digit, 2-letter country.
Made one? Test it with the Barloom scanner before you print.
Questions about UPU SIO
Is the UPU SIO generator free?
Yes. You can create as many UPU SIO barcodes as you like with no account, watermark or limit.
What data can I put in a UPU SIO?
13 characters: 2 letters, 8 digits + check digit, 2-letter country.
Is my data sent to a server?
No. The UPU SIO barcode is drawn in your browser. What you type is never uploaded.
How do I scan my UPU SIO?
Open the Barloom scanner and point your camera at the barcode, or upload a photo of it. Most industrial handheld scanners read it as well.
Which file formats can I download?
SVG for sharp printing at any size, and PNG at standard, high or print resolution.