County Only Has Assessor's Parcel Number (APN) or Assessor's Identification Number (AIN) or Property Identification Number (PIN)
These are all acceptable terms: APN, AIN, or PIN. Assessor's Parcel Number (APN) is a unique number assigned to real property by the tax assessor of the property's jurisdiction; Assessor's Identification Number (AIN) and Property Identification Number (PIN) are alternative terms with the same meaning.