GLEIF publishes all LEI codes (LEIs) and LEI Reference Data (LEI-RD) on its website, which are updated on a daily basis.
The files are created by the concatenation of relevant LEI issuers’ files, while the original (LEI issuers’) files are also published .
Currently, GLEIF publishes four types of concatenated files. For Level 1 (“who is who”), it publishes the data in both CDF v1.0 and CDF v2.0 formats (see page X). For Level 2 (“who owns whom”), the data comes in the RR-CDF v1.1 format and in the Reporting Exceptions v1.1 format (see page Y).
Historical data is also available through this resource, dating back to June 8th, 2015 (accessible in those formats that were historically available).
These files are listed here: https://www.gleif.org/en/lei-data/gleif-concatenated-file/download-the-concatenated-file/