What's the "is being used" mean?

[Polyester]

The more predictable alphabet.com is already being used by Alphabet International, a mobility services company helping large corporations manage employee transportation. Alphabet International is a member of the BMW Group.

As above-mentioned that i don't understand is why the word "being" is using here?
What's the being mean here?(be = is, are, was, were)
According to my knowledge from high school that I think "is already used" here is correct.
Can someone correct me ?:-|:-|

 

[konungursvia]

No. Is = present tense; used = past tense. "Is used" is a passive voice, for example, 'Soap is used to wash the hands.'
The phrase "is already used" sounds like something has been consumed, for example, a napkin.

 

[tedmc]

[STRIKE]As above-mentioned that [/STRIKE]What I don't understand is why the word "being" is [STRIKE]using[/STRIKE] used here?
What[STRIKE]'s the[/STRIKE] does "being" mean here? (be = is, are, was, were)
According to my knowledge from high school, [STRIKE]that[/STRIKE] I think "is already used" [STRIKE]here is correct[/STRIKE] should have been used instead.

 

[Polyester]

tedmc,
"As above-mentioned"
I always saw my business e-mail using that phrase. What's wrong?

My staff is always using that phrase too.

 

[Matthew Wai]

"As above-mentioned"

I would say 'As mentioned above', but I am not a teacher.