This number is for a company that online personal websites utilize to handle their billing and credit card transactions. I found over 30 different personal sites that use this company. When you call to complain about unauthorized charges, they want your credit card info and they won't tell you the name of their company. Be Ware!!!
These charges are from bondage.com, so someone in your family signed up for that site. The site was recently bought by Hustler, so it is not affiliated with alt.com. I doubt any virus would have anything to do with those charges.
I lost my Bank card and reported it as lost or stolen. The bank issued another card and deactivated the lost/stolen one. A few weeks later the same charge appeared on my account. After a brainless call to the 610 number provided, i called my bank. If your VISA card is lost/stolen MAKE SURE to ask that the auto update feature is deactivated as well. Even though I called my bank and reported a lost/stolen card they didn't deactivate the VISA auto update. So the website was able to update to me new card number becuase of VISA. Bottom line, if you lose a card cancel auto update feature.