SAN FRANCISCO  EBay plans to announce on Tuesday a deal to sell its Skype Internet calling division to a group of private investors, according to two people briefed on the company’s plans.

The investment group is likely to include Andreessen Horowitz, a new venture capital firm headed by the Netscape co-founder Marc Andreessen, these people said. One of the people added that Index Ventures, a London-based venture capital firm that was an early investor in Skype, and the private equity firm Silver Lake Partners were also involved. A price was not disclosed, but eBay has said it wants around $2 billion for Skype, which is on track to take in more than $600 million in revenue this year.

Alan Marks, an eBay spokesman, would not comment on the matter. Mr. Andreessen is on eBay’s board of directors.

EBay acquired Skype in 2005, outbidding Google and Yahoo in a deal that has come to be viewed as one of the worst technology transactions of the decade. Including payouts to Skype’s founders, the price ultimately topped $3.1 billion. EBay later wrote down $900 million of Skype’s value, after it became clear that the company was not a good fit with eBay’s main e-commerce and online payment businesses.