I'm sorry OP. 
I too have had to cut friends out. Approximately 20 but certainly 7 who I knew from uni. I had to, they were feeding back information to the ex.
Now, not all of those 7 were narcs but the prime movers were. Two I think. One male, a good guy, tried twice to contact me and I refused. He will, unknowingly, feed back information because he does not understand how this shit works.
I am now extremely careful who I share info with and you should be too. What strikes me from your words is that you are highly empathic. And you my love will attract narcs. You have done.
These are not friends, they are users. When the supply dries up, they disengage and move on.
Make no mistake, you might have been disengaged from but it is entirely possible they might try to Hoover you again.
You reduce the risk of a Hoover by implementing a full and robust no contact regime. You block them everywhere. On every platform and of course phone and landline. In fact I suggest you change those numbers and be very careful about who you give the new ones to.
This greatly reduces the risk but does not fully eliminate it. But you are dealing with unaware narcs. You will probably be ok but be vigilant. Frenemies dont tend to behave in the same way an intimate partner does. You will be a tertiary source. That changes matters in their fuel matrix.
Well done on you for setting boundaries. Let the rabble sink in their own filth. They deserve it.