I imagine that IF the UN places an embargo on trade or supplies to or from a country ... then it would be illegal for any company established in any nation signing onto that agreement to do any kind of business with anyone (company or individual) in the embargoed country.

Example ... it would be illegal for any US web host to do business with any company or person in Cuba.

Therefore ... it would be illegal for any Data Center in the USA to do business with ANY ONE in the USA (web host or individual or ???) that did business with ANY company or person in Cuba.

So ... I believe the same would hold true with Iran if embargo's & trade restrictions are as "all encompassing" as those against Cuba.

Not sure how it would affect say a Canadian company (which does NOT have an embargo against Cuba) that has Cuban customers whose sites they host on a USA based server. Somehow I don't think the same restrictions apply.

At least that is what I have "retained in memory" from my 35 yr old International Business Law course I took in college But ... things may have changed since then.

Peter