work number

I'd read through a thread that came up when I googled how to use Target for a ...."reference" but the thread wasn't very helpful, and neither is The Work Number website. So I would like to put the number on my resume, so future employers can 'fact check'...but do I need to do anything other...

Not sure if anyone here would know this, but I figure I would give it a shot since I can't call TMSC until tomorrow. Does anyone know what the default pin is to log into The Work Number? It varies by company, For example some use Last 4 of SS# followed by the year you were born (YYYY), others...