Computer Science Corp. won a Customs contract.

The El Segundo-based company will supply and operate a consolidated data network for the U.S. Customs Service. The contract, which is the largest in the company’s history, has an initial value of $48.5 million and could be worth $282 million over eight years if all options are exercised. The network could be expanded to include certain operations of the Internal Revenue Service and a number of other operations of the Treasury Department. The fully operational consolidated data network would serve 7,500 locations worldwide and support more than 30,000 links to data terminals. On the New York Stock Exchange, CSC’s stock rose $2.875 per share to a 52-week high of $23.25.