New Zealand NZBN Validator
Online New Zealand Business Number (NZBN) validator with 94290 prefix check and GS1 Modulo 10 algorithm.
New Zealand NZBN Verification
Validates that the given 13-digit code carries the official 94290 prefix and satisfies GS1 integrity rules.
Essential tool for software testing and API data validation.
NZBN Anatomy & Structure
The NZBN is a 13-digit GS1 identifier used across New Zealand commerce:
| Position | Field | Length | Meaning & Specification | Example |
|---|---|---|---|---|
| 1 to 5 | GS1 Government Prefix | 5 digits | New Zealand government prefix (94290) | 94290 |
| 6 to 12 | Entity Identifier | 7 digits | Company identification number | 3102458 |
| 13 | Check Digit | 1 digit | GS1 Modulo 10 check digit | 7 |
Validation Algorithm (GS1 Modulo 10)
Mathematical checksum validation based on GS1 standards:
Weighted sum of first 12 digits using alternating weights [1, 3].
- 1. Extract the first 12 digits and multiply by alternating weights 1 and 3.
- 2. Sum the products and compute modulo 10.
- 3. Confirm that the calculated check digit equals the 13th digit.
Frequently Asked Questions
Why do numbers with other prefixes fail?
All NZBNs must begin with 94290 as mandated by the New Zealand Business Number Act 2016.