What kind of places do this? And how do they go about trackin them?
Most vets, shelters, and rescue groups can do the microchips now. As far as tracking them you can't call them up and pin point the dogs exact location, but if someone does pick up your dog for some reason, then they take them to a facility to get them checked for a chip. The facility will scan the dog for a chip and their scanner will get the chips number and they can put it into a database and it'll pull up all the contact info that's been registered with that chip number.