Rule 4. Summons
. . .
(k) Territorial Limits of Effective Service.
(1) In General. Serving a summons or filing a waiver of service
establishes personal jurisdiction over a defendant:
(A) who is subject to the jurisdiction of a court of general
jurisdiction in the state where the district court is located;
(C) when authorized by a federal statute.
(2) Federal Claim Outside State-Court Jurisdiction. For a claim that
arises under federal law, serving a summons or filing a
waiver of service establishes personal jurisdiction over a defendant if:
(A) the defendant is not subject to jurisdiction in any state’s courts
of general jurisdiction; and
(B) exercising jurisdiction is consistent with the United States
Constitution and laws.