Scotland Yard has handed the files on five journalists for decisions in relation to phone hacking.
The move forms part of Operation Weeting - the Metropolitan Police investigation into alleged hacking of voicemail messages.
A spokeswoman for the Crown Prosecution Service, which gives charging advice, said: "We are not prepared to discuss the identities of those involved or the alleged offences in any greater detail at this stage as a number of related investigations are ongoing.
"We are unable to give any timescale for charging decisions, except to say that these cases are being considered very carefully and thoroughly, and the decisions will be made as soon as is practicable."
The files relate to allegations of offences under the Regulation of Investigatory Powers Act, she added.
It brings the total number of files sent to prosecutors as part of the phone-hacking inquiry to 12.
The CPS has only launched prosecutions in relation to one of these so far - that of former News International chief executive Rebekah Brooks and her husband Charlie.
Files involving Guardian journalist Amelia Hill and former News Of The World chief reporter Neville Thurlbeck, have been dropped.
Nine cases - including the five new ones - are now in the process of being considered for charging advice.