Jordan Kahn:

Back in May of last year, a long list of readers in countries around the world reported having access to Apple’s two-step verification security feature for their Apple ID. Shortly after the news broke, the feature disappeared in many countries signaling it had been launched prematurely. The only officially supported countries listed on Apple’s website included the “U.S., UK, Australia, Ireland, and New Zealand.” However, today the feature has appeared in several new countries including Canada, France, Germany, Japan, Italy, & Spain.

Apple’s list of compatible international carriers for SMS verification is available here. I just enabled two-step verification for my Italian account, and everything worked right away without any issues.

See also: our guide from last year on enabling two-step verification for your Apple ID.