Don't bother blasting them with anything — it's a robocall, it can't hear you. By responding at all it knows it's a good number and will add you to their database. Better to not answer at all. Get a call blocker or a Panasonic phone, then you can just block them.

Here are some more numbers that may be with the same or similar groups:  4105053187, 4105053208, 4105053373, 4106003348, 4108445809,
4108445823, 4435694134, 4439272597, 6672194413, 7139555635.  Does anyone know if these are spoofed numbers?

Just a correction:  4106003348 is apparently not part of the above group.

Caller ID states "Baltimore, MD" but the Area Code (667) doesn't match any used in Maryland.  Obviousl a scam.

FYI- the 667 area code is a new layover code for the Maryland area previously served by 410 and 443. They added it recently , when they started to run out of available numbers. Cheers!