iOS testing with public instance

[shraddha]

Hello,
I am trying to test a website with public instance.
I am running a test location for the public instance of WebPagetest.
What value for location I should use for iOS devices?

below is my script:
values = {
'fvonly' : 1,
'f' : "xml",
'runs' :1,
'requests':1,
'k':"xxx",
'location':"Dulles:iOS"
}