Thanks for responding. I do not see my old phone when I log in to iCloud.com.
I did not log out of iCloud before wiping my phone. The steps I took are as follows:
Settings>Apple ID>Find My>Find My iPhone>switch to off
Then:
Settings>General>Reset>Erase All Content and Settings
To explain further my old phone was with Verizon as the carrier. We recently switched to Sprint as a carrier. As part of that we turn in our old phones to Sprint for credit towards our new phones (iPhone 11). When Sprint pulls up the IMEI number for my old phone in their system, they are unable to process as it shows as the FMiP is still active on it.