I don't think the US has ever blocked at the IP level. ICE and DHS typically just seize naughty domains by taking over their DNS records (recent examples at htt

I don't think the US has ever blocked at the IP level. ICE and DHS typically just seize naughty domains by taking over their DNS records (recent examples at http://coronaprevention.org http://coronaprevention.org and http://chinaseatbelt.com http://chinaseatbelt.com). For entities with a US presence, the threat of prosecution usually does the trick (see https://codeisfreespeech.com/ https://codeisfreespeech.com/)