-1 km · 4 Landing Points · 2 Countries · Ready for Service: 2019
| Length | -1 km |
|---|---|
| Status | In Service |
| Ready for Service | 2019 |
| Landing Points | 4 |
| Countries | 2 |
| Location |
|---|
| Hanko, Finland |
| Helsinki, Finland |
| Kotka, Finland |
| Stockholm, Sweden |
What each country and landing point keeps if Eastern Light Sweden-Finland I goes down. A calculation from our cable and landing-point database, not a forecast.
| Country | Other international cables | Land links | What remains |
|---|---|---|---|
| Finland | 14 | yes | reserve of 14 cables |
| Sweden | 26 | yes | reserve of 26 cables |
Every landing point of this cable has another cable within 50 km.
No alerts from our monitoring on this cable in the last 180 days. Events feed →
Counted: other international cables landing in the same country (domestic cables between points of one country are not a way out), other cables at landing points within 50 km, and whether the country has land links. Not counted: cable capacity, operator contracts and satellite. Use as a first look at dependence, not as a statement of what would happen.
Monitored from 2026-07-11 through 2026-09-03 - live ICMP round-trip time measurements via our monitoring probes. All values below are recomputed daily from raw probe data. ✓ No anomalies detected in the monitored period.
| Probe | Location | Samples | Avg |
|---|---|---|---|
| #6427 own probe | Sydney AU | 13 | 263.6 ms |
| own probe | Minsk BY | 13 | 20.5 ms |
| own probe | Saint Petersburg RU | 12 | 16.4 ms |
| own probe | Moscow RU | 1 | 21.6 ms |
The Eastern Light Sweden-Finland I is a submarine cable system designed to enhance connectivity between Sweden and Finland. Owned and operated by Eastern Light, the cable serves as a critical infrastructure component for data transmission between the two countries. It became ready for service (RFS) in 2019, marking its operational debut in the region.
The cable connects multiple key locations in Finland and Sweden, facilitating robust cross-border data exchange. Its landing points include:
This geographical layout ensures coverage of major urban and coastal areas, providing crucial connectivity within the region.
The Eastern Light Sweden-Finland I cable system was built to deliver high-capacity data transmission, although specific details such as the number of fiber pairs, total length, and overall capacity have not been publicly disclosed. The supplier responsible for the cable's construction is also not specified. As mentioned earlier, the cable has been operational since 2019.
The cable plays a significant role in strengthening the digital infrastructure between Sweden and Finland. It provides route diversity and redundancy for other cables in the region, such as Eastern Light Sweden-Finland II, Finland Estonia Connection 1, and Sweden-Estonia (EE-S 1). This diversification reduces the risk of service disruption in case of damage to other systems and ensures stable connectivity for businesses and individuals.
While the cable's operational status and landing points are well-documented, several technical and logistical aspects remain undisclosed:
These gaps in publicly available data highlight the need for further transparency in submarine cable projects.
Eastern Light Sweden-Finland I is of particular interest for GeoCables' monitoring efforts. Its strategic position in the Baltic Sea makes it vulnerable to risks such as anchor drags, fishing activities, and natural degradation. Monitoring BGP routing changes, latency patterns, and vessel movements above the cable's route can provide early warnings of potential disruptions. Moreover, the cable's integration into the regional network topology, alongside related systems like BCS North - Phase 1, emphasizes the importance of understanding its role in redundancy and traffic flow.
The Eastern Light Sweden-Finland I cable is a crucial link between Sweden and Finland, supporting regional connectivity and redundancy. Despite limited publicly available technical data, its strategic importance makes it a key asset for monitoring and analysis. GeoCables can contribute valuable insights by tracking its operational health and the broader network dynamics it influences.
What next: Explore Eastern Light Sweden-Finland I on the interactive submarine cable map, browse the full catalog of submarine cables, or follow live network events and real-world internet latency.
| Status | ✓ Normal |
|---|---|
| RTT | 16.76 ms / base 16.39 ms |
| Last checked | 2026-09-03 13:32 |
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