Abandoned Call!!
Most likely: Telescammers / Telecriminals / Scumbags using a spoofed number, and ignoring the worthless DNC list...All you can do is keep blocking the area codes these turds call from.
BEWARE: These people are crooks who will try to get your personal information and steal your identity.
The DNC list is simply useless and you should NEVER answer these calls period!!!
You should also consider buying a phone blocking device which will block area codes and will eliminate most of these junk calls!