These are special "StarStar" numbers offered by StarStar Mobile: https://www.starstarmobile.com/
So the asterisks don't really represent anything, they're literal representations of * key/button you find on any phone.
While I'm not familiar with the details of the implementation, it appears to be a clever hack on VSCs, which are how telcos let you ...
I agree with Andrew. I travel between Olney, MD and Hanover, NH. It's simple. I put my address, with destination as Hanover, NH and then I put Tappan Zee Bridge as a "stop" and that's it. It will avoid all the NYC stuff. Much easier drive too.