AT&T confirmed Monday that the iPhone 5 is the most popular iPhone model in the company’s history, calling the “fastest-selling iPhone the company has ever offered.”

Customers ordered more iPhones from AT&T than any previous model both on its first day of preorders and over the weekend.

The device will be available starting this Friday, September 21, 2012. In the U.S., it’s also available with service from Verizon and Sprint.