What’s to acknowledge? Everybody that thinks about it knows every telephone number in their country or region, and could probably come up with the list of telephone numbers for the whole world. There’s no way around that.
And it’s certainly known that computers can connect and mass-spam at a scale beyond what most folks can comprehend, too.
And it’s known that spam is a business, with substantial investments, and with testing.
And it’s known that the calling numbers are routinely spoofed / faked / forged.
And around here, we get the same spam messages repeated through the whole exchange. Which is easy to do, when you’re running a computerized business that calls everybody. They’ve picked up a new subscriber over the past few weeks, and the volume of some of the other spam messages may have been effected by a recent US class-action lawsuit.
As for the spam messages, the telephone network is entirely busted, and also working exactly as designed and as required by cellular providers and by regulators. Handset vendors have no control over who can call who, too.
What can you do? Contact your regulators and particularly your legislative reps. Right now, they’re seemingly not hearing enough from their constituents to seek to address the mess.
What to do about the spam short-term, pending any hypothetical legislative and regulatory shifts? Shut off notifications from unrecognized senders. And your carrier may have additional (and probably extra cost) options, so check with them.