Staging preview — not published. This page describes a format TRAKWIND Scan reads, so it stays unindexed until the release is confirmed.
Royal Mail 4-state
RM4SCC
The UK postal code, written in bars rather than letters.
- Type
- Four-state postal
- Also called
- RM4SCC, Royal Mail Customer Code
- Encodes
- Postcode and delivery point information
- Off by default
- Enable it under Settings → Scanning engine
RM4SCC encodes the destination of a UK mailpiece — the postcode, plus the delivery point detail that distinguishes one address from its neighbours — using the same four-state principle as other postal codes, where each bar carries meaning through its shape rather than its width.
It is printed by the sender rather than the carrier, which is what makes it useful beyond the postal network itself: the address data is already on the item when it reaches you, so an inbound parcel or mailpiece can be identified without typing anything.
It is the pattern behind several other national postal symbologies, including the Dutch KIX code, which uses the same bar shapes without the start, stop and checksum characters.
Where you meet it
UK mail and parcel labels.
Can a phone scan a Royal Mail 4-state barcode?
Not with a standard scanning engine. TRAKWIND Scan reads RM4SCC; enable it under Settings → Scanning engine, since the postal formats ship switched off.
How to scan it with your phone
- 1
Install Barcode & QR Scanner Keyboard from Google Play and enable it as a keyboard.
- 2
Open Settings → Scanning engine and choose TRAKWIND Scan.
- 3
Tap the barcode key on the keyboard and point the camera at the code.
This format ships switched off. Turn it on in the same Scanning engine screen before you scan.
The value is typed into whatever field you were already in — a spreadsheet, an ERP screen, a web form. There is nothing to integrate.
Read it with the phone in your pocket
Free on Google Play. No licence, no extra hardware, and nothing to connect.