[Morkie4]

It isn't so much they are reprogrammed from what I understand about microchiping........it is a number on the chip with the name of the chip company. It is scanned and then the "company" is called and "THEY" have your information and contact you. So you need to contact the "chip" company and update the information. If it is a dog that already has a chip, you will have to get the information from the previous owner and a permission change of name/ownership form the company in order to have the information changed on the contact that is on file with the company. A small fee is required to do this.