RefSeq release 90 is accessible online, via FTP and through NCBI’s programming utilities.
This full release incorporates genomic, transcript, and protein data available as of September 10, 2018. It contains 173,956,003 records, including 121,138,769 proteins, 23,838,676 836, and sequences from 84,276 organisms.
The release is provided in several directories as a complete dataset and as divided by logical groupings.