APT NO. 503 (IMO 9444132)
APT NO. 503 is an Offshore Tug/Supply Ship built in 2010 and flying the Taiwan flag, placing it in its 16th year of service. The vessel reports a deadweight tonnage of 1,687 metric tonnes and a gross tonnage of 1,731. This vessel is configured for offshore support and supply operations. APT NO. 503 is classed by the China Corporation Register of Shipping, which is an IACS member. The vessel has been observed in the East Asia region. It has a history of operating under four different flag states and has been registered under three former names. No port state control (PSC) inspections were recorded in the last 36 months; 3 inspections are on file since 2016, the most recent on 3 October 2016.
- Type: Offshore Tug/Supply Ship
- Flag: Taiwan
- Year built: 2010
- MMSI: 416007985
- Call sign: BR4563
- Gross tonnage: 1731
- Deadweight: 1687 t
- Port State Control (PSC) inspections: 3 since 2016
- PSC detentions in the last 36 months: 0
- Last PSC inspection: 03/10/2016
- Registered owner · Ship manager · ISM manager: ALL PORTS TRANSPORTATION CO
- Last AIS position: 22°35.1′N · 120°18.1′E · Speed 4.6 kn · received 8 July 2026 at 06:43 UTC
- Destination: Kaohsiung (TW KHH)
- Arrival alert: rynda.io messages you by email or in Telegram when APT NO. 503 arrives in Kaohsiung. Free for up to 3 vessels.
Frequently asked questions
What is the vessel type of APT NO. 503?
APT NO. 503 is an Offshore Tug/Supply Ship. It was built in 2010 and is currently in its 16th year of service.
What are the tonnage specifications for APT NO. 503?
The vessel has a deadweight tonnage of 1,687 metric tonnes. Its gross tonnage is recorded at 1,731.
Which classification society manages APT NO. 503?
The vessel is classed by the China Corporation Register of Shipping. This society is a member of the International Association of Classification Societies (IACS).
Where has APT NO. 503 been operating recently?
The vessel has been observed in the East Asia region. This area is consistent with its current flag state of Taiwan.
How many inspections has the vessel undergone?
No port state control (PSC) inspections were recorded in the last 36 months; 3 inspections are on file since 2016, the most recent on 3 October 2016.
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