# What is an SEC accession number?

Canonical: https://sec-api.dev/questions/what-is-an-accession-number

> An accession number is the unique ID EDGAR assigns to each filing, in the form 0000320193-26-000010: the filer agent’s CIK, the year and a sequence number. It identifies the filing in every SEC URL and data set, so keep it with any value you extract.

The first ten digits are the CIK of whoever submitted the filing, which can be a filing agent rather than the company itself.

API: GET https://sec-api.dev/api/v1/filings?cik=320193&limit=3

- [SEC filings API](https://sec-api.dev/sec-filings-api)

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