The FAA has described the November 13 nationwide ground stop as stemming from a communications issue across Air Route Traffic Control Centers, with technicians actively investigating what officials characterize as an equipment or frequency problem rather than any external interference. No public statements from the FAA, Transportation Secretary, or other agencies have linked the event to Iran or any foreign actor, consistent with prior outages resolved as internal technical failures. Trader consensus at 95.5% against attribution reflects this official framing, the absence of corroborating intelligence or claims, and the high evidentiary threshold for assigning state responsibility in aviation disruptions. Late-stage findings from the ongoing probe or declassified assessments could still shift the outlook if they establish a cyber connection.