You absolutely can port a Google Voice number. End-user subscriber numbers must be portable per FCC rules. Google, operating services provided by Bandwidth.com (mentioned in the article), does enable port-protection by default but this is easy to bypass by an operator who, like in the article, checks the box that says something like "I have a valid written LOA, complete the port as an exception." This has legitimate uses (some losing providers are very ruthless about not following the rules and letting customers move numbers) but unscrupulous or lazy operators will check the box and move on.
You absolutely can port a Google Voice number. End-user subscriber numbers must be portable per FCC rules. Google, operating services provided by Bandwidth.com (mentioned in the article), does enable port-protection by default but this is easy to bypass by an operator who, like in the article, checks the box that says something like "I have a valid written LOA, complete the port as an exception." This has legitimate uses (some losing providers are very ruthless about not following the rules and letting customers move numbers) but unscrupulous or lazy operators will check the box and move on.