Name of your Internet Service Provider (ISP) - Comcast
Ticket or reference number from your ISP. - Not going to contact them. This isn't a Comcast issue for once.
State/Country - Colorado, USA
Date/Time (When did the issue start happening, at what specific times does this issue arise, if any.) - Approximately the 29th of November is when I noticed the latency issue. Typically happens during prime time, about 5pm until 10pm MST.
Frequency (How often does the issue occur?) - Daily.
Content (Which content were you playing in-game when the issue occurred?) - Specifically Thordan EX and Alex Savage. I've also noticed latency issues when running dungeons, Void Ark, etc.
Which in-game World were you playing on when the issue occurred? - Gilgamesh
Traceroute records (optional) -

Microsoft Windows [Version 10.0.10240]
(c) 2015 Microsoft Corporation. All rights reserved.

5 13 ms 15 ms 13 ms ae-23-0-ar01.denver.co.denver.comcast.net [68.86.128.105]
6 21 ms 14 ms 13 ms 4.68.63.165
7 58 ms 106 ms 110 ms ae-10-10.car2.Montreal2.Level3.net [4.69.153.86]
8 58 ms 59 ms 59 ms ae-10-10.car2.Montreal2.Level3.net [4.69.153.86]
9 61 ms 59 ms 59 ms ORMUCO-COMM.car2.Montreal2.Level3.net [4.59.178.74]
10 57 ms 60 ms 60 ms 192.34.76.10
11 58 ms 57 ms * 199.91.189.242
12 55 ms 56 ms 56 ms 199.91.189.40

Trace complete.