Profpointy
Legendary Member
Where do they get your phone numbers from?
One method is to simply run through the numbers sequentially. You don't even need every number as the numbering plans are published. Not issued numbers simply don't connect. Just to be clear, this is <edit> NOT by someone dialling the numbers - a call centre will have an outbound dialler which only connects the call to an agent if someone answers. Some even play a pre recorded message or have voice recognition systems which are fairly convincing so you can't even swear at them till you've got through to a person
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