postal-logistics
Japan Post Customer Barcode (Japan Post)
4-state height-modulated linear symbology utilized by Japan Post for domestic address and zip code automation on postal cards and envelopes.
Governing Specification: Japan Post Service Specifications
Data Format & Required Fields
Encodes 7-digit Japanese postal codes and address block identifiers using start bar, data bars, check digit, and stop bar.
Allowed Character SetJapanese 7-digit zip code and alphanumeric address block.
Payload Length Rule Between 7 and 20 characters
Example Valid Format
12345678901234Industry Guidance & Practical Applications
- Japanese domestic mail, postcards (Nengajo), and parcel address automation
- Direct mail marketing campaigns across Japan
- Courier delivery routing slips for domestic Japanese carriers
Packaging & Scanning Notes: Mandated by Japan Post to qualify for bulk mail postage discounts.
Symbol Constraints & Label Guidelines
- Requires 4-state optical recognition hardware.