> Interestingly enough AWN had this DNS dashboard saved with a filter specifically looking at Facebook traffic. It's unclear why they would be particularly interested in who was going to Facebook.

One likely non-malicious explanation is that the telco is offering some plan with data caps based on social media such as instagram, facebook, etc. Searching around, I found the offering below for unlimited data on 9 social media apps http://www.ais.co.th/one-2-call/simcard/en/super_social.html...

I'm guessing one way the telco implements the selective cap is by tracking user's DNS, and is probably interested to know traffic to facebook