-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 |
Monitored from 2026-07-11 through 2026-07-13 - 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 | 11 | 263.5 ms |
| #1014473 own probe | Minsk BY | 11 | 20.5 ms |
| #1015563 own probe | Saint Petersburg RU | 11 | 16.3 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.
| Status | ✓ Normal |
|---|---|
| RTT | 16.29 ms / base 16.40 ms |
| Last checked | 2026-07-13 09:01 |
Monitored by our probe network. Open monitoring →
| Min | Avg | Max | # | |
|---|---|---|---|---|
| 7 days | 262.8 | 263.5 | 263.8 | 10 |
| 30 days | 262.8 | 263.5 | 263.8 | 11 |
| 60 days | 262.8 | 263.5 | 263.8 | 11 |
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