NATL A FIN on a credit report: finance company loan
NATL A FIN is probably a loan from a finance company: on reports, "FIN" usually stands for finance or financial.
How to find out which company reported NATL A FIN
Your free report at AnnualCreditReport.com shows the full name and address of whoever reported NATL A FIN; our guide to identifying a creditor covers the other ways to find out.