Please make sure that when your dog is microchipped that you actually check that the chip scans your details!
My neighbour lost her puppy and it went back to the breeder although she had changed the details.
I got Kimba scanned a while ago to make sure it worked and nothing came up! I had signed the paperwork to have the details changed and not even the Rspca came up!
Luckily she wasn't lost! I have now sorted it out and also make sure if you move states or buy a dog from another state you make sure they are in that system (for example I adopted Kimba from Canberra yet live in NSW)
Better to be safe and check next Vet appointment!