Open-source analysis shared on X identifies the targets of recent U.S. strikes on Iran's sole underground air base. The post, originally by user BenTzionMacales and reposted by Sh1n, reads:

The targeting in the latest U.S. strike waves is becoming increasingly interesting.
At Iran's only underground air base, I identified four strike locations: two along the route connecting the tunnel complex to the runway, and two targeting infrastructure linked to the facility's construction unit.

Recent imagery showed accelerated work aimed at bringing the base to operational status. These strikes appear would delay its completion.