866-206-3056

They keep calling from different numbers. I keep blocking them.

Caller ID stated: 02/19/21, 2:17 PM, 800 Service, 866-206-3056. Called my home phone and didn't leave a message. Trying to block them is useless because they call from different numbers each time. When you call them back to tell them to stop calling you the phone number is "not a working number".
In the past, they have called using these numbers:
02/10/21    W    12:00 PM        Spam? 800 Service, 833-846-9509
01/29/21    F    5:10 PM        800 Service    844-215-6745
01/26/21    Tu    3:02 PM        800 Service    844-221-2339
07/29/20    W    4:21 PM        800 Service    844-463-7821
03/21/20    Sa    9:18 AM        Spam? 800 Servi    877-806-4893
02/27/20    Th    2:02 PM        PSE&G Appliance    800-350-7734
01/13/20    M    9:45 AM        800 Service     800-256-7597
01/13/20    M    9:44 AM        800 Service     800-256-7597