Definition
The PLSCI is the port-level version of UNCTAD’s maritime connectivity index: it measures the position of each port in the global network of scheduled container services on the basis of the services that call there.
It uses the same components as the country index: calls, deployed capacity, services, shipping lines, size of the largest ship and ports connected directly. It is published every quarter for close to a thousand ports around the world.
It allows ports of different sizes and functions to be compared with the same yardstick. Hub ports tend to score high, because they concentrate many services and large ships, even though part of that connectivity serves the cargo of other countries.
The figure · Q3 2026
Best-connected Spanish port
568.7 points
Spain’s connectivity index (LSCI)
407 points
Spanish ports in the world top 100
4 ports
Spanish ports with an index
27 ports
Maritime connectivity of Spanish ports in 2026
The full ranking, the trend and the table are in the indicator Maritime connectivity of Spanish ports. To explore the data in detail, see Connectivity.