Looking on the internet deeply has found these results:

Be known as is the most popular phrase on the web.

be known for 111,800,000 results on the web	Be known as 160,900,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Let's not be known for what we are! Heck, even if you beat the charges, you'll still be known for the rest of your life as the alleged child pornographer. Surely he wants to be known for his crimes. Said he wanted to be known for selling expensive wheels. He will be known for the present as henry fitzroy. She used to be known for her gem collection. For this, you will be known for generations. You're probably sitting there wondering what will be your mark, what will you be known for?	I want to be known as the man who killed Xena in a fair fight. OK, I'll help, but I do not want to be known as the makeup expert around here. You know I've always wanted to be known as the guy Who throws the best parties in la. I thought you didn't want to be known as the wild party druggie girl. You mean, he wanted to be known as the man who killed Xena. To be known as the man who built the Union Pacific Railroad. I can't be known as the girl who hooked up on tape. You do not want to be known as mysterious.

be known for

111,800,000 results on the web

Be known as

160,900,000 results on the web

More popular!

Let's not be known for what we are!
Heck, even if you beat the charges, you'll still be known for the rest of your life as the alleged child pornographer.
Surely he wants to be known for his crimes.
Said he wanted to be known for selling expensive wheels.
He will be known for the present as henry fitzroy.
She used to be known for her gem collection.
For this, you will be known for generations.
You're probably sitting there wondering what will be your mark, what will you be known for?

I want to be known as the man who killed Xena in a fair fight.
OK, I'll help, but I do not want to be known as the makeup expert around here.
You know I've always wanted to be known as the guy Who throws the best parties in la.
I thought you didn't want to be known as the wild party druggie girl.
You mean, he wanted to be known as the man who killed Xena.
To be known as the man who built the Union Pacific Railroad.
I can't be known as the girl who hooked up on tape.
You do not want to be known as mysterious.