Alright.
I've never really payed attention to what my IP address is and I guess it hasn't changed until today, at least its never caused Guild Wars 2 to give me an authentication message.
Attempting to log-in I'm getting IP address change and asked to athenticate.
The authentification emails I'm getting are only being sent when I've tried to log-in.
IP address checking sites identify my IP and my correct location.
http://whatismyipaddress.com/
Anet has my correct IP, but is saying my location is in California.
Looking up my IP directly it is from California and its hostname ends with ca.charter.com.
http://db-ip.com/
Anyone more knowledgable about this stuff think I'm fine to just authenticate this?