Then you've made a fortune 。。。。 The number represents the dog's international status! This is a great dog with an ear number tattoo! In foreign countries, the technology of microchip implantation in the body is not yet mature era! To record the dog's international identity and pedigree. They all utilize ear branding or tattooing! There are very few of them in the country! Take good care of him! Don't fall into the hands of dog traffickers