Have you ever encountered the word CPN Numbers and are amazed to know exactly what it is? Although there are many benefits to using these numbers, many risks are linked with utilizing them. A CPN term is a nine-digit number widely utilized in your social security number (SSN) when you apply for credit. Often, it is also known as a credit profile number, and our CPN at Authorized User Tradelines is also applied to people looking at credit files. These numbers are also recognized as secondary tradelines or IDs even. You may also call them theft protection numbers.