Sanctioned vessels (red & amber): Live global positions for 900+ tankers designated by OFAC, EU, UK, and Canadian sanctions programs. Worldwide coverage wherever AIS is broadcast.
Active tankers (gray): Real-time AIS for the Baltic Sea via Digitraffic Finland — 5,000+ vessels, the densest free public AIS feed available without authentication.
North America is sparse by design: Free public AIS for US and Caribbean waters requires paid commercial access. Sanctioned tonnage also routes around US enforcement zones, which is precisely the behavior this map surfaces.