Finland Estonia Connection 1 (FEC-1)

Overview

Finland Estonia Connection 1 (FEC-1) is a submarine cable system linking Estonia and Finland across the Gulf of Finland. The cable operates within one of the shorter intra-regional corridors in the Baltic Sea area, connecting multiple landing points on both the Estonian and Finnish coasts. It is owned by Elisa Corporation, a Finnish telecommunications operator.

Route and Landings

In Estonia, FEC-1 lands at three locations: Kärdla, Kihelkonna, and Meremöisa. These landings are distributed across the Estonian coast, with Kärdla and Kihelkonna situated on the island of Saaremaa and the surrounding area.

In Finland, the cable lands at three points: Espoo, Hamnäs, and Hanko. These landings span the southern Finnish coastline facing the Gulf of Finland.

Ownership and Operators

FEC-1 is owned solely by Elisa Corporation. Elisa is a Finnish telecommunications and digital services company providing connectivity and communications infrastructure across Finland and Estonia.

Status and Timeline

FEC-1 became ready for service in 2000 and has been operational for approximately 26 years. It remains in service, connecting its six landing points across the two countries.

Regional Context

The Estonia–Finland corridor is served by several submarine cable systems. FEC-1 entered service in 2000, placing it among the earlier cables in this corridor alongside BCS North – Phase 1 (RFS 1998) and BCS North – Phase 2 (RFS 2000). Later additions include STO-HEL-One (RFS 2008) and C-Lion1 (RFS 2016), while Mjolner East and Mjolner West are planned for 2027. Finland hosts a relatively broad set of submarine cable landings, with 12 cables across 11 landing points, while Estonia's infrastructure is more concentrated, with 5 cables across 4 landing points.

Performance measurements over the last 60 days, based on 64 ping tests, show an average round-trip latency of 26.0 ms, with the best recorded latency at 6.1 ms.

Strategic Role

FEC-1 provides direct submarine connectivity between the Estonian and Finnish coasts, with a notably distributed landing footprint — three points in each country. This distribution across sites including island and coastal locations in Estonia, and multiple southern Finnish coastal points, means the cable serves connectivity needs across a broader geographic spread than a single-pair landing would allow. As one of the longer-standing active systems in this corridor, it contributes to the overall diversity of submarine infrastructure between Estonia and Finland.