Here are the known or reported named Iranian ships confirmed as struck, sunk, or destroyed in this operation, based on available reports:
IRIS Shahid Bagheri (C110-4) — Converted container ship/drone carrier. Sunk early in the operation at Bandar Abbas berth. No specific death count reported.
IRIS Makran (441) — Forward basing/expeditionary support ship (converted tanker). Struck and heavily damaged/sunk at Bandar Abbas pier. No specific death count reported.
Jamaran-class frigate/corvette (specific hull not always named, but one confirmed at Chah Bahar pier; possibly IRIS Jamaran (F76) or similar in class). Sunk at pier in initial strikes. No specific death count reported for this vessel.
IRIS Fateh (920) — Domestically built Fateh-class semi-heavy submarine (Iran's first of its kind for littoral ops). Rumored/sunk per some reports and CENTCOM reference to "the most operational Iranian submarine" now with "a hole in its side." No specific death count reported.
IRIS Dena — Moudge-class frigate (related to Jamaran class). Reportedly sank off Sri Lanka's coast (outside typical ops area), with Sri Lankan rescue efforts pulling ~30 sailors; estimates of ~180 crew total, leading to potentially high casualties (101 missing, 78 injured per some unconfirmed reports). Cause not officially tied to US/Israel but fits pattern.
Other classes mentioned as affected (multiple vessels struck/sunk but without individual names confirmed):
Bayandor-class corvettes/frigates (e.g., possible IRIS Bayandor or IRIS Naghdi referenced in some analyses).
Alvand-class frigates (e.g., IRIS Sahand, IRIS Sabalan).
Additional Jamaran-class or similar frigates.
The total of 17 includes these plus unnamed smaller vessels (e.g., fast attack boats, other frigates/corvettes, and the submarine). Earlier figures from Trump included 9–10 sunk, escalating to 17 by March 3–4 per CENTCOM.