US Airways Group Inc. confirmed that the company registered several domain addresses that include the names usairways-american.com and American-usairways.com.

FORT WORTH, Texas — US Airways has made no secret of its interest in a merger with American Airlines, and now it’s gobbling up Internet domain names in case they do agree to combine.

A spokesman for US Airways Group Inc. confirmed Tuesday that the company registered several domain addresses that include the names of both airlines, including usairways-american.com and American-usairways.com.

The spokesman, Andrew Christie, said US Airways bought the domain names to prevent anyone else from buying them and using the names “in a way that might negatively impact our brand.”

He declined to comment about a possible bid for American.

US Airways has publicly disclosed that it hired advisers to weigh a bid for AMR Corp.’s American Airlines, which filed for bankruptcy protection in November.

A spokesman for American Airlines, Bruce Hicks, said the airline knew nothing about the domain names.