If you’re not sure about some (or all!) elements of your loan situation, that’s ok! This can be very confusing.
To see all of your federal student loans and their servicers, you can log in or create an account at Federal Student Aid’s online portal. You’ll be able to see your loan types, repayment plans, and servicer information.
If you have a Summer account, you can also share your loan details when you've opened Summer's IDR tool or Summer's PSLF tool and visited the "About Your Loans" or "Your Loan Eligibility" sections respectively.