Received call about 10 min ago on land line that NoMo DID NOT BLOCK. (Have also reported call to them).
CLAIMS TO BE ADT Alarm System Sales & Service.
There is NO such VALID PREFIX as 119 in ANY AREA CODE.

when call is answered no response from caller

None.... Hang up call

just got a call from this #.  I don't answer calls I don't recognize. No message

Another call from these people...heavy accent, says she's from my security system MANUFACTURER (which she couldn't name, said either General Electric or Honeywell), says she's working with my security company (which she couldn't name), and she couldn't answer how she got my phone number since this is a landline we don't even use, and we certainly never give out the number for the landline, and we didn't even have that landline when we set up our security system.  Total scam.