Spammers have to send messages from a number, which aren’t infinite supply. The numbers are spoofed. They really do have a near infinite supply. If one has t

Spammers have to send messages from a number, which aren’t infinite supply. The numbers are spoofed. They really do have a near infinite supply. If one has their own SS7 link they can spoof any number. There are plenty of shady VoIP services that enable this.