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Royal Mail Mailmark 2D and Barcoded Stamps

The camera app can scan this. The Zebra app can scan this.

Royal Mail prints small Data Matrix codes on business mail and, since 2022, next to the Queen's or King's head on everyday stamps. The square code identifies the item, and older non-barcoded definitive stamps stopped being valid after July 2023.

Also called Mailmark 2D, Mailmark Data Matrix, Royal Mail stamp barcode, barcoded stamps.

In this family

Specifications

StandardRoyal Mail Mailmark Barcode Definition Document; Data Matrix ECC 200 (ISO/IEC 16022)
Character setAlphanumeric (Royal Mail data structure)
CapacityData Matrix types 7, 9 and 29 (Royal Mail-defined layouts)
Error correctionReed-Solomon (ECC 200)
Dimension2D matrix

Where it is used

UK business mail; Royal Mail barcoded stamps (since 2022)

People use it for uK business mail; Royal Mail barcoded stamps (since 2022).

The camera app shows this as Data Matrix and returns the text. It does not look up the letter or the stamp.

Example

SAMPLEMAILMARK2D

Scan and create

Create this code opens the barcode generator with this symbology and the sample text filled in.

The camera app can scan this and shows it as Data Matrix. It returns the raw text. It does not open links, look up products, or start a payment. The desktop companion types that text into the focused field.

The Zebra app can scan this. It returns the raw text.

Related codes

Questions

Why do UK stamps have a barcode?

UK business mail; Royal Mail barcoded stamps (since 2022). Royal Mail prints small Data Matrix codes on business mail and, since 2022, next to the Queen's or King's head on everyday stamps. The camera app shows this as Data Matrix and returns the text. It does not look up the letter or the stamp.

Can I scan a Royal Mail stamp barcode with my phone?

The camera app can scan this. It returns the raw text. The Zebra app can scan this. The camera app shows this as Data Matrix and returns the text. It does not look up the letter or the stamp.

Are old stamps without a barcode still valid?

Royal Mail prints small Data Matrix codes on business mail and, since 2022, next to the Queen's or King's head on everyday stamps. The cited standard is Royal Mail Mailmark Barcode Definition Document; Data Matrix ECC 200 (ISO/IEC 16022). The camera app shows this as Data Matrix and returns the text. It does not look up the letter or the stamp.