More than 2.07 million faxes were sent via FaxZero.com in 2013, to destinations ranging from government entities to private companies. This week, FaxZero released its annual list of the most frequently faxed companies.

The most-faxed company in 2013 was the online auction site eBay, with 13,318 faxes sent via FaxZero.com to the social media company's support contact number. In second place was Twitter, with 12,812 faxes received. Credit card company American Express was the third most-faxed company, at 8,829. Coming in fourth, with 7,648 faxes received, was Amazon. And in fifth place for the second year in a row was the Texas Health and Human Services Commission, which got 6,040 faxes via FaxZero.

The next most frequently faxed companies in 2013 were, in order: Wells Fargo, Verizon, Aetna, Sallie Mae, FSSA, Chase, Higher One, Assurance Wireless, FedLoan Servicing, TD Ameritrade, CyberThink, PayChex, Delta SkyMiles, and National Personnel Records Center.

The previous year, AT&T was the most-faxed destination, followed by Apple, Twitter, eBay and the Texas Health and Human Services Commission.

This is the second year site founder Kevin Savetz has shared the service's top destinations. He launched FaxZero in 2006. "I'm pleased to see how many individuals and businesses have used FaxZero to get things done over the years," Savetz said. "And I find it interesting to note where the faxes are being sent."

Savetz made a point to mention that he tracks major destination numbers without violating the privacy of those sending and receiving the faxes.

"I assume that the destination agencies and companies are telling their clients to use FaxZero to send information," he said. "It's gratifying to know that such large entities appreciate FaxZero's reputation as a reliable, affordable service."

The site lets users to send five free faxes per day of up to three pages each to anywhere in the U.S. or Canada. FaxZero, which is mobile-friendly, also offers a premium faxing service for $1.99, for which there no daily limit and allows up to 15 pages per fax.

FaxZero also has an international fax option to more than 180 destination countries with fees starting at less than $4. There's even a free service to fax one's representative in Congress or Senate. 

Fax senders can upload file types including DOC, PDF, XLS, PNG and other formats as well as include multiple file types in one fax message. FaxZero has a text box that allows users to create a cover page directly on the website. It generally takes less than five minutes for a fax to go through.

"Internet-based faxing remains popular for home and business use, and in fact is growing," Savetz said. "More than two million faxes were delivered by FaxZero.com in 2013."

FaxZero has been featured in publications such as U.S. News, Reuters and PC World. Savetz, an expert on internet faxing since the early 1990s, is the creator of more than 80 FreePrintable.net sites including FreeFaxCoverSheets.net, with its more than 200 fax cover sheet designs.

FaxZero.com is part of Savetz Publishing, Inc., a company devoted to creating useful and informative web sites of interest to consumers and small businesses.