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Tool · Customs

MID code generator

The 12-character Manufacturer Identification (MID) code U.S. Customs requires on every entry summary. Generate it correctly the first time.

What it does

  • Country code (ISO 3166)
  • First three letters of the first two name words
  • Largest number from the street address
  • First three letters of the city

Built for

  • ·Importers shipping to the US
  • ·Customs brokers
  • ·Compliance teams reconciling 7501 entry summaries

Common questions

Frequently asked

What is a Manufacturer Identification (MID) code?
A 12-character code U.S. Customs uses to identify the manufacturer on entry summaries and ISF filings.
How is the MID code calculated?
Country code + manufacturer letters + largest street number + city letters, per CBP MID construction rules.
Is this official CBP validation?
No — always verify against your commercial documents and broker before filing.

Need specialist support?

Speak to a partner

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