Check the spec
Lengths and check-digit rules for this postal symbology are listed above.
Free tools · Logistics
Generate UPU S10 Parcel Identifier postage symbols.
Universal Postal Union 13-character identifier rendered as Code 128. Enter AA123456785AA for UPU S10 Parcel Identifier below — lengths and check digits validate instantly in your browser before the symbol renders.
Postal barcode generator
Pick a post, type the data.
Runs locally in your browser. Nothing is uploaded; validation errors name the exact rule.
Style (module size, bar height, readable text)
Rendering symbol…
Specification
| Standards | UPU S10 |
|---|---|
| Character set | Two-letter service + eight-digit serial + weighted mod-11 check digit + two-letter issuer country. |
| Lengths | AA123456785AA |
| Check digits | Two-letter service + eight-digit serial + weighted mod-11 check digit + two-letter issuer country. |
| Quiet zone | Calm quiet zones on both sides; pure black on white for sorter readability. |
| Capacity | Two-letter service + eight-digit serial + weighted mod-11 check digit + two-letter issuer country. |
Usage
UPU S10 Parcel Identifier routes International mail through automated sorters: print it on envelopes and parcels where International carriers expect it.
- UPU S10 Parcel Identifier on envelopes for International automated sorting
- UPU S10 Parcel Identifier on parcels with the example EE123456785KR as a starting point
- UPU S10 Parcel Identifier proofs exported as SVG for print-safe output
Shape
Pros
- UPU S10 Parcel Identifier is accepted by International sorting automation.
- Lengths and check digits validate instantly with the exact rule named.
- SVG export stays sharp for envelopes and parcel labels.
- The symbol is read back locally before preview unlocks where a reader exists.
Cons
- UPU S10 Parcel Identifier is single-purpose — it carries postal data, not general text.
- Wrong lengths or missing check digits are rejected instead of printed.
- Low contrast or tight quiet zones fail high-speed sorters first.
- Screenshots prove encoding, not sorter-grade print quality.
Form requirements
- Enter AA123456785AA.
- Two-letter service + eight-digit serial + weighted mod-11 check digit + two-letter issuer country.
- Preview and downloads stay withheld until local verification passes where a reader exists.
Sources
- UPU S10 standard (Universal Postal Union)
Related formats
Keep exploring.
How it works
Three steps, all on your device.
The same engine that prints parcel labels worldwide, running in your browser.
Type the data
The on-device engine enforces the rest and appends check digits where the standard says so.
Verify, then print
The symbol is rasterized and read back locally before preview and downloads unlock.
Questions
UPU S10 Parcel Identifier Generator & Specs, answered.
If you manage servers by hand, see the engineering services behind this tools series.
What do I type for UPU S10 Parcel Identifier?
Two-letter service + eight-digit serial + weighted mod-11 check digit + two-letter issuer country. Try the example EE123456785KR first.
Does UPU S10 Parcel Identifier need a check digit?
Two-letter service + eight-digit serial + weighted mod-11 check digit + two-letter issuer country. The engine computes or verifies it and names the expected digit on mismatch.
Is my data uploaded anywhere?
No. Encoding and verification run entirely in your browser — the page makes no network requests with your data, stores nothing, and wipes the field after ten idle minutes.
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