Does royal mail large letter have 16 digit barcode

According to Royal Mail's guidelines, a Large Letter (also known as a Large Parcel) does indeed have a 16-digit barcode.

The barcode is known as a "Royal Mail Large Letter Barcode" or "LLB" for short. It's a unique identifier that helps Royal Mail track and process your mail.

Here's a breakdown of the 16-digit barcode:

• The first 2 digits represent the Royal Mail product code (e.g., "11" for a Large Letter).
• The next 2 digits represent the postage paid (e.g., "01" for a standard rate).
• The next 6 digits are a unique identifier for the item (e.g., a tracking number).
• The final 6 digits are a check digit to ensure the barcode is valid.

When you send a Large Letter, Royal Mail will print this 16-digit barcode on the item, which helps them process and track your mail efficiently.

I hope that answers your question!