Yet another spoofed/non-existent number with an exchange that starts with "1."  240-180-3743, 240-158-6047, 240-132-4021, etc.  Rather than screen this call, in this go-around, I decided to pick it up just to see what the con was.  I didn't say anything (e.g., say "Hello?"), as I always do for these kinds of spam/robo/telemarketer/scam calls, just to play around and annoy the caller.   So the person on the other side could only hear background noise.  Within a second, I heard the spiel:  "Amy," from some job services thing that I never applied for (I'm gainfully employed!), began inquiring about me and how I was doing.  But that's as far as she got before I hung up.

Been getting these calls everyday at random times throughout the day, and each time it's a newly generated number with the 240 area code, but with a phone exchange that's non-existent.  Phone exchanges don't start with a 1!   That's reserved for making long distance calls!   No amount of blocking will do much good, short of only accepting numbers on my contacts list.  Because these numbers are new and non-existent, none of the phone apps notate this as anything other than a regular call.