1.5 Application numbering system 

At the EPO, the number range starting at 000001 (PCT/EPyyyy/000001) is used for paper filings (including faxes). The number range starting at 025000 (PCT/EPyyyy/025000) is used for filings made via Web-Form Filing. The number range starting at 050000 (PCT/EPyyyy/050000) is assigned to electronic filings made using Online Filing 2.0, OLF or ePCT.