> ## Documentation Index
> Fetch the complete documentation index at: https://docs.baselayer.com/llms.txt
> Use this file to discover all available pages before exploring further.

# International Search by Filing Number

> Jul 13, 2026

Baselayer now supports the ability of searching international registrations using only a `filing_number` - which returns the most accurate results.

A `filing_number` with `iso2_country_code` can be a complete request on its own: name/address matching is skipped and the match fields stay null.

Searching by name and address is still supported. When both `filing_number`, `name` and `address` are provided, the registry is searched by this number first; a name (if also provided) is used as a fallback when no company matches the number. 

We recommend allowing customers to search for their filing\_number (if they do not know it already), by leveraging the list of results from `GET /international/registrations`. 


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