Basically, I am having some unusual (but apparently not uncommon) accessing the severs of the Japanese MMORPG Phantasy Star Online 2. The problems started June 18th, when the servers were taken down in response to a continuous DDoS attack.

Sega of Japan announced that measures were being put in place, and a little over a week later, the servers came back online. However, most people outside of Japan attempting access the servers were met with errors, and the official website (pso2.jp) is also inaccessible. While one might reasonably suspect that an IP range ban has been put in place, the evidence indicates otherwise.

»www.reddit.com/r/PSO2/comments/2···updated/

As this thread indicates, Time Warner customers are now able to access the servers, and tracert results widely suggest that the requests are being stopped well before they actually reach Sega's servers. I figured I'd ask here on a forum of networking experts and CenturyLink support specialists. If it IS my ISP blocking access to this game, perhaps asked to by Sega to counter the DDoS, then I'd like to know when I can expect to have access again. Here are my tracert results (with home IP removed):

»pastebin.com/AHw28HLu

Thank you for your time.

Also Level3 is showing no route.

Not really, still some BS in that post.

Level3 and Cogent are both big international players, much more so then TWC.

It appears that the owner of 210.189.208.0/23 (AS4694) is not announcing its network to non JP ISP's either on purpose (based on talk of supposedly a DDOS) or not.

The difference between TWC and Cogent and Level3 is that TWC buys transit from other ISP's it cant gain access to directly. Cogent and Level3 are Tier1 providers and as a rule they don't (except in maybe in very rare cases)

TWC is using that transit trough other JP ISP's that AS4694 is announcing their routes to in order to get to the destination.

And this talk of blocking by all of these other ISP because of DDOS protection and stuff, they generally wont do that unless they are the target from said ISP. AS4694 simply stopped announcing their 210.189.208.0/23 route (via BGP) to those other ISP, thus the networks have no idea how to get to them. Cogent, Level3, Charter and any other ISP that currently cant access the 210.189.208.0/23 network have nothing they need to do, if AS4694 wants people on those network to access their game/site, they will fix it and announce the route to them.

TLDR: AS4694 is not announcing 210.189.208.0/23 to non JP networks, no one is "blocking" access to them except themselves.