No, there isn’t a single central database that registers all pet microchips. Multiple independent databases exist, each operated by different microchip manufacturers or registration services.
Some microchip registries are more widely used and recognized than others. Many are linked to larger networks that shelters and veterinary clinics nationwide can access. Additionally, services like the American Animal Hospital Association’s (AAHA) Universal Pet Microchip Lookup Tool can help search multiple registries at once to identify the database where a particular microchip is registered.