What do APRI registration numbers mean?
APRI registration numbers code much information into the number. Example: C99-YW-AB-68482C The first letter is the month the number was issued: A=January, B=February, C=March, etc. The two numerals indicate the year. The next two letters indicate the sexes in the litter with the males listed first. Count from the letter to the end of the alphabet: Y, Z = 2 males; W, X, Y, Z = 4 females. The next two litters indicate the breed. In this case, AB means Yorkshire Terrier. The next five numerals indicate the actual registration number, and they start over each month. The letter on the end indicates the specific puppy in the litter. The “C” in this case indicates the first female. APRI sexes are coded in the registration number and printed on the registration applications. These cannot be changed by the breeder or anyone else outside the APRI office. Even if the breeder made a mistake in the number of each sex, it cannot be corrected without reissuing the entire litter.