240 km · 3 Landing Points · 2 Countries · Ready for Service: 1995
| Length | 240 km |
|---|---|
| Status | In Service |
| Ready for Service | 1995 |
| Landing Points | 3 |
| Countries | 2 |
| Location |
|---|
| Kärdla, Estonia |
| Stavsnas, Sweden |
| Tallinn, Estonia |
Monitored from 2026-04-10 through 2026-05-24 — live ICMP round-trip time measurements via RIPE Atlas probes. All values below are recomputed daily from raw probe data. ✓ No anomalies detected in the monitored period.
| Probe | Location | Samples | Avg |
|---|---|---|---|
| #751 | RIPE Atlas | 178 | 53.6 ms |
| #40 | RIPE Atlas | 1 | 12.3 ms |
| #1014473 own probe | Minsk BY | 1 | 20.2 ms |
| #1014589 own probe | Almaty KZ | 1 | 70.9 ms |
| #1014597 own probe | Tbilisi GE | 1 | 79.0 ms |
| #1014969 own probe | Jerusalem IL | 1 | 81.7 ms |
| #1015313 own probe | Sevastopol UA | 1 | 47.7 ms |
| #1015523 own probe | Moscow RU | 1 | 23.0 ms |
Sweden-Estonia (EE-S 1) is a submarine cable system spanning approximately 240 kilometres across the Baltic Sea, connecting Estonia and Sweden. It serves the bilateral corridor between these two countries and has been in service since 1995, making it one of the earlier fibre connections established in this part of the Baltic region.
In Estonia, the cable lands at two points: Kärdla, located on the island of Hiiumaa, and Tallinn, the country's capital. In Sweden, the cable lands at Stavsnas, situated on the Stockholm archipelago's eastern coast.
The cable is jointly owned by three operators: Arelion, GN Great Nordic, and Telia Eesti. Telia Eesti, formerly known under successive names including Eesti Telekom, EMT, and Elion, is a longstanding Estonian telecommunications provider. Arelion, originally Telia Carrier, is a global network operator with a strong presence across the Baltic and Nordic regions.
Sweden-Estonia (EE-S 1) became ready for service in 1995 and remains operational. It continues to carry traffic between Estonia and Sweden across its Baltic Sea route.
The Sweden–Estonia corridor is served by several submarine cable systems of varying lengths and ages. Sweden-Estonia (EE-S 1), at 240 kilometres, is among the shorter systems in this broader Baltic corridor. Neighbouring cables include BCS North - Phase 1 (513 km, RFS 1998), STO-HEL-One (560 km, RFS 2008), Sweden-Latvia (391 km, RFS 2005), Aurora (500 km, RFS 2024), Mjolner East (450 km, planned RFS 2027), and N0r5ke Viking 2 (900 km, planned RFS 2028). Sweden-Estonia (EE-S 1) predates all of these systems in the region, having entered service nearly a decade before its nearest peer in age.
Measured over a recent 60-day period across 219 ping tests, the cable records an average round-trip latency of 52.1 milliseconds, with a best observed value of 10.1 milliseconds.
Sweden-Estonia (EE-S 1) provides direct submarine connectivity between two landing points in Estonia — including the island of Hiiumaa at Kärdla and the capital Tallinn — and the Swedish coast at Stavsnas. The dual Estonian landings allow the system to serve both the Estonian mainland and the western islands, distributing connectivity across geographically distinct parts of the country. As one of the longest-serving cables in this corridor, it represents an established link in the Sweden–Estonia bilateral connection.
| Status | ✓ Normal |
|---|---|
| RTT | 73.38 ms / base 57.97 ms |
| Last checked | 2026-05-24 20:30 |
Monitored using RIPE Atlas probes. Open monitoring →
| Min | Avg | Max | # | |
|---|---|---|---|---|
| 7 days | 10.7 | 56.5 | 102.0 | 22 |
| 30 days | 10.1 | 55.1 | 267.6 | 158 |
| 60 days | 10.1 | 53.6 | 267.6 | 178 |
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