Since you are in Europe, you probably connect to one of the NTT service nodes located in New York City. (Outside of your ISP's network, it acts as a proxy between you and the FFXIV NA servers which are located in Sacramento, CA, USA)
There are multiple nodes before you reach the FFXIV NA Datacenters as you bounce from nodes to nodes as intermediaries.
(As Baingoleth pointed out, this is one of the NYC affected nodes -> *.nycmny01.us.bb.gin.ntt.net)
Try to do a tracert/traceroute.
