lsl Is there a way to check for neighbouring region names?

[Fionalein]

I could use a script to discern wether you entered a region from a neighbouring region or not. (I would use changed and teleport but you can cheat those by teleporting to no script lands and out of them again - in which case a teleport event would not be triggered).

 

[Soen Eber]

The RLV API has a teleport script which translates sim and sim coordinate to a global coordinate representing the entirety of the SL grid. Manipulating the functions used with a bit of math should give you both a forward and reverse translation berween that global coordinate and sim+local coordinate.