Track any container moving through Masaki and see the port's real activity: carriers calling, scheduled connections, and a measured congestion signal. Four independent lenses on every shipment.
The fastest way to follow a container through Masaki is to enter your reference at trackingmcp.com/ports/jpmas. TrackingMCP detects the carrier and format, then shows carrier milestones, live vessel position, the published schedule, and a forecast ETA on one screen; DCSA-normalised across 241+ ocean lines.
Any carrier calling Masaki: we detect the line and format automatically.
Daily signal, 30 July 2026 to 5 October 2026; dashed line marks the port's typical baseline.
As of 5 October 2026, port-call throughput at Masaki was 20% below its typical baseline, on 32 calls in the trailing 7 days. Derived from AIS port-call observations via IMF PortWatch open data; inside the tracker this signal refreshes continuously and feeds each shipment's ETA-at-risk flag.
Masaki appears in 28 scheduled port calls in TrackingMCP's sailing database (January 2025 to June 2027 schedule window), with 2 carriers we track calling the port. Track any of them by container, bill of lading, or booking number.
JPMAS. The five-character UN/LOCODE (JP for Japan, plus MAS) identifies Masaki in carrier schedules, booking confirmations, and tracking feeds worldwide.
Enter your container number, bill of lading, or booking reference in the search box above. TrackingMCP auto-detects the carrier and format, then returns live carrier events, the vessel's AIS position, and a forecast ETA. Your first shipment is free, no account needed to start.
CMA CGM, ZIM are the carriers with scheduled sailings calling Masaki in TrackingMCP's sailing database.
As of 5 October 2026, AIS port-call data (via IMF PortWatch) put Masaki's 7-day throughput 20% below its typical baseline, on 32 port calls in 7 days; the signal level reads mild. Signals refresh continuously inside the tracker; this page shows the snapshot from its last build.
Busan, Kaohsiung, Asami, Nishi/Minamidaito, Shibushi, Tabu see the most scheduled sailings to and from Masaki in TrackingMCP's sailing database.
Free time is set by each carrier's tariff for Japan, not by the port. The TrackingMCP free-time reference lists published demurrage and detention free days for Japan by carrier, and the tracker watches the free-time clock on every shipment.