Verizon does block catbox.

That's just because it's a frequent malware host. You can disable that in your settings or use a different DNS server.

It still counts as a block.

	▲	petcat 4 hours ago \| parent [-]
		A trivial block that is opt-in... Go to your Verizon account -> Safe Browsing -> Uncheck all the content filters you don't want.