USS LST-521
Naval vessel
In short
USS LST-521 (Naval vessel) has no AIS position on record with Voydar.
- Vessel type
- Naval vessel
- Flag
- —
- Year built
- —
- Gross tonnage
- —
- Size (length × beam)
- —
- Registered owner
- —
Watch this ship
USS LST-521 has not been received for a while. Follow it and we will email you as soon as it is heard again, then when it reaches or leaves port.
Free forever. No card. A free account follows up to 5 ships and ports.

Last reported position
No AIS position on record for this vessel. Identity and particulars are below.
A year of history in the Terminal (Plus) · the full archive since June 1, 2026 (Pro)Free forever. No card. New accounts include 14 days of Pro.
Try the live demo, no sign-upIdentity & particulars
- Name
- USS LST-521
- IMO numberWhat is an IMO number?
- 6415518
- MMSIWhat is an MMSI?
- —
- Call signWhat is a call sign?
- —
- Flag
- —
- Vessel type
- Naval vessel
- Gross tonnageGross tonnage vs deadweight
- —
- Length overall
- —
- Beam
- —
- Year built
- —
A tag next to a value names the register that supplied it (hover or tap it for the record and date). Values without a tag come from the ship's own AIS broadcasts or from Wikidata. Position and identity are derived live from AIS.
Ownership & management
Each line shows where the fact comes from. Links backed by an identifier point to the company page.
- Operator
- Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
- Builder
- Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
About USS LST-521
USS Cape May County (LST-521) was an LST-491-class tank landing ship built for the United States Navy during World War II. Named for Cape May County, New Jersey, she was the only U.S. Naval vessel to bear the name. LST-521 was laid down on 4 October 1943 at Seneca, Illinois by the Chicago Bridge & Iron Company; launched on 13 December 1943; sponsored by Mrs. Ruth Sexton; and commissioned on 9 February 1944. During World War II, USS LST-521 was assigned to the European Theater and participated in the Invasion of Normandy in June 1944. Upon her return to the United States, she was decommissioned on 21 October 1945. Later reactivated (date unknown), assigned to the Military Sea Transportation Service (MSTS) and placed in service as USNS T-LST-521, the tank landing ship was placed out of service (date unknown) and redesignated USS Cape May County (LST-521) on 1 July 1955.
Summary from Wikipedia, licensed CC BY-SA.
Frequently asked questions
- Where is USS LST-521 now?
- Voydar has no displayable AIS position for USS LST-521 in this profile. A coverage gap does not establish whether the ship is transmitting or where it is now.
- What kind of ship is USS LST-521?
- USS LST-521 is a naval vessel.
- What sanctions and inspection records does Voydar hold for USS LST-521?
- Voydar has no matched sanctions record displayed for USS LST-521 from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for USS LST-521. Missing records do not establish whether the ship has been detained.
Use this data
This page is also available as JSON, free, with the source and licence of every section. Sections whose sources do not permit redistribution are listed as withheld.
GET /api/v1/vessels/6415518Using this data in code?
Every account gets a personal API allowance: 2,500 credits a month free, 25,000 with Pro. Pro adds internal business use; API plans add building the data into your own products.