Since the Chronomage update, SERVICE SHOW shows services across multiple towns. In many rooms, though, the location column is designed to only provide "environs" as a location. Is there something in the town or zone they're in that could identify, for example, whether they are in the environs of Solhaven or Icemule or the Landing? Environs might mean they are out of range for certain things.

For whatever it's worth, "environs" means they are not locateable (room that blocks it, hiding), not that they're out of town.

Interestingly, SERVICE SHOW does pierce Unpresence and tell you where that character is. I'm not sure if that's intended or not.