Landline Home Phone Service How Can I Figure Out What Phone Service I Have?

How can i figure out what phone service i have? - landline home phone service

I am a young person to manage my rent, I would like to know how Couse ID my family is called, so small and yet again we have it! My aunt told me she was free for them, but it's not always want to look up, but I have on my phone knows finds, first, help! How can I solve it?