what state is he in? unless he is in federal prison (his number doesnt match anyone in federal), you will need to know the state where you think they are being held.
https://www.inmateaid.com/ask-the-inmate/hello-i-am-searching-for-my-godson-so-i-can-write-him-a-letter-but-i-cant-seem-to-locate-his-name-in-the-search-record-his-name-is-floyd-bass-id-02117660-can-you-help-me-please#answer
Accepted Answer Date Created: October 25,2018