Using UPCS codes
Writing a UPCS Code on Packages and Parcels
Tips for writing or printing a UPCS code on a package, label or sign so it can be read correctly and looked up later.
Updated 14 October 2026 · 2 min read
If you send parcels, or want visitors to find a place from a sign or label, you can write a UPCS code on the item. Readability matters most, because someone has to type or copy it later.
Steps
- Generate the code and check it with the lookup page. See checking you chose the right spot.
- Write the full address and postcode as normal. Do not replace them.
- Add the code on a separate line or beside the address, for example "UPCS: PK-1A2B-3C4D".
- Optionally add the direct link form
upcs.io/PK-1A2B-3C4D. See using the direct link.
Make it legible
- Use block capitals and a clear, dark pen or a printed label.
- Keep the hyphens; they separate the country prefix from the two blocks.
- Take care with look-alike characters. Write a zero and the letter O differently if you can, or print the label.
- Leave white space around it so it does not blend into the rest of the address.
Printing
If you print labels, use a normal readable font at a size comparable to the rest of the address. Printing avoids the handwriting errors that cause lookups to fail.
For the person receiving
They can paste the code into the search box or open the direct link. If something looks wrong, verifying a code lists the checks.
Context helps
A parcel with a code and a note such as "deliver to the rear loading bay" is easier to handle than a code alone. Consider giving the code to a courier in advance as well.
Frequently asked questions
Can I replace the address on a parcel with a UPCS code?
No. A UPCS code is not an official postal code, so keep the full address on the parcel and add the code as extra information.