PostNL post code lookup
Enter a destination post code to check PostNL format, place and region before printing the label.
Quick answer: PostNL labels use the destination country post code, not the Chinese warehouse. US 5-digit ZIP, UK full post code (e.g. SW1A 1AA), Japan 7 digits.
How to fill the label
Step 01
Pick the destination
The country must match the address or post code validation fails.
Step 02
Use Latin city/region
For example Mountain View / CA.
Step 03
Follow the format
US 94043, Japan 100-0001, UK SW1A 1AA; keep only the first 5 digits of ZIP+4.
Common destination formats
| Country | Format | Example |
|---|---|---|
| United States | 5 digits | 90210 |
| United Kingdom | Outcode + full postcode | SW1A 1AA |
| Japan | 7 digits (000-0000) | 100-0001 |
| Germany | 5 digits | 10115 |
| Canada | First 3 characters (FSA) | M5V |
FAQ
What if the PostNL post code is wrong?
Delays, customs failures or returns; US and UK route by post code.
Does the warehouse need a post code?
Domestic warehouses do not need one; overseas warehouses follow local format.
Does the UK support full post codes?
Yes for Great Britain: use the full code, e.g. SW1A 1AA. Northern Ireland is outcode only, so use BT1.
Can I check a batch?
Yes, paste a column into batch check.
Related
Label fields reference PostNL public docs; sample codes from the post code dataset. Last checked 2026-11-09.