Like Galliano, I'm posting this info in relevant lag threads:
I contacted Level 3 (sometimes I'm routed through there), but my main issue deals with Cogent. I've tried contacting them using the following info:
United States / Canada
Hotline: 1-877-7-COGENT (877-726-4368) or 1-202-295-4368
Email: support@cogentco.com
For other countries, if you have issues with routing through them: http://www.cogentco.com/en/customer-...e/support-desk
They were less than receptive to my email seeing as I'm not their customer.
And my ISP (AT&T U-verse) will not be trying to talk to Cogent because
A)their customer service is offensive at best
B)I have no other issues with my network or other online games
C)they say no one else has contacted them concerning issues with FFXIV