SEC CENTRAL INDEX KEY

DELTA AIR LINES, INC. CIK Number

The SEC Central Index Key (CIK) for DELTA AIR LINES, INC. (DAL).

CIK (CENTRAL INDEX KEY)
0000027904
Also written as 27904 (without leading zeros).
Company
DELTA AIR LINES, INC.
Ticker
DAL
Download DAL filings (PDF) →View on SEC EDGAR

What is a CIK number?

A CIK (Central Index Key) is the unique, permanent identifier the U.S. Securities and Exchange Commission assigns to every filer — companies, funds, and individuals — in its EDGAR system. Unlike a stock ticker, a CIK never changes: even if DELTA AIR LINES, INC. changed its ticker or name, its CIK (0000027904) would stay the same.

That stability is why the CIK is the most reliable way to pull a company's filings programmatically. Every 10-K, 10-Q, 8-K, and Form 4 for DELTA AIR LINES, INC. is indexed under CIK 0000027904.

CIK vs ticker — what is the difference?

  • Ticker (DAL) — exchange trading symbol; can change or be reused.
  • CIK (0000027904) — SEC filer ID; permanent, one per filer, used across all EDGAR filings.
  • Leading zeros are optional: 0000027904 and 27904 refer to the same filer.

How to use DELTA AIR LINES, INC.'s CIK

Paste CIK 0000027904 into EDGAR full-text search to see every filing, or skip the friction and download DAL filings as clean PDFs here. To look up any other company's CIK, use the CIK lookup directory.

Source: SEC EDGAR company index (sec.gov). CIK data is public.