You can use the website without entering an inmate ID number. That being said, the real problem happens when trying to send things to them into a prison or jail. They typically require the ID number on any correspondence, therefore we recommend including it. If you cannot find it, you can ask us to help or simply call the facility and ask them - they will give it to you with no problem.
https://www.inmateaid.com/ask-the-inmate/what-about-if-i-dont-have-the-inmate-number#answer
Accepted Answer Date Created: December 17,2014