I also realized that every time I send out an email blasting from Marketo I have traffic from Boardman that is related to the number of emails sent.
Why GA is not able to track the real information of my visitors instead of showing Google Data Center information? How can I fix this issue?
Seems like multiple questions stuffed into one.
First of all, GA isn't related to Marketo So ultimately you're asking about a non-Marketo analytics report.
Second, Amazon Web Services is not a "Google Data Center" (wow, you'd really get some people angry with that one!).
Third, you're making the assumption that these pageviews are not actually coming from, exactly as they say, an Amazon AWS host in Boardman, OR (the AWS us-west-2 region). Chances are these are automated mail scanners which, like many, are hosted on private servers in a public cloud.