Landing Point · GB United Kingdom
| Cable | Status |
|---|---|
| Concerto | Active |
RTT measurements to this landing point from 2026-04-30 through 2026-06-10 - live ICMP round-trip time via our monitoring probes. Recomputed daily. ✓ No anomalies detected in the monitored period.
| Probe | Location | Samples | Avg |
|---|---|---|---|
| #1014473 own probe | Minsk BY | 2 | 45.9 ms |
| #6427 own probe | Sydney AU | 1 | 256.4 ms |
| #6487 own probe | Singapore SG | 1 | 159.2 ms |
| #1014589 own probe | Almaty KZ | 1 | 104.4 ms |
| #1014597 own probe | Tbilisi GE | 1 | 61.0 ms |
| #1014969 own probe | Jerusalem IL | 1 | 69.7 ms |
| #1015313 own probe | Sevastopol UA | 1 | 105.1 ms |
| #1015523 own probe | Moscow RU | 1 | 48.2 ms |
| #1015932 own probe | Odessa UA | 1 | 51.1 ms |
| #1016031 own probe | Kyiv UA | 1 | 42.4 ms |
Sizewell is a hamlet on the North Sea coast of Suffolk, England, situated within the East Suffolk district between the coastal towns of Aldeburgh and Southwold. Its position on the North Sea coast places it along one of the most active submarine cable corridors in Europe, connecting the United Kingdom with continental European neighbours. One submarine cable lands at Sizewell, linking the United Kingdom directly with the Netherlands and enabling a cross-North Sea connection between these two countries.
The single cable landing at Sizewell is the Concerto system, which establishes a relatively compact bilateral corridor spanning the North Sea. At 550 kilometres in length, Concerto represents a short but direct route between the UK and the Netherlands, a corridor that reflects the dense web of telecommunications infrastructure connecting the British coastline with northwestern Europe.
Concerto is a 550-kilometre submarine cable that became ready for service in 1999. It connects Sizewell in the United Kingdom with the Netherlands, forming a direct cross-North Sea link between the two countries. Concerto is listed with a draft status for its 1999 RFS year.
Within the United Kingdom, Sizewell is one of 125 submarine cable landing points distributed across the country, which collectively host 66 submarine cables. Hosting a single cable, Sizewell is a more modest landing point when compared to peers such as Bude, which serves eight cables, Lowestoft with six, and Blackpool with four. Other landing points such as Broadstairs, Porthcurno, and Southport each host three cables, further illustrating that Sizewell, while a recognised point of submarine cable infrastructure on the UK coastline, represents the quieter end of the national landing point spectrum.
Sizewell functions as a single-cable terminus, with the Concerto system providing a direct bilateral connection between the United Kingdom and the Netherlands across the North Sea. This corridor is a well-established route for telecommunications traffic between the British Isles and northwestern continental Europe, and Sizewell's role is to anchor the UK end of that specific link along the Suffolk coast.
As a single-cable landing point, Sizewell does not carry the diversity of routing options found at larger UK landing points, but its presence as a dedicated terminus for the Concerto cable means it contributes a distinct node to the broader UK submarine cable graph, adding one more point of entry and exit for North Sea cross-border connectivity along England's eastern coastline.
View actual submarine cable routing from Sizewell, United Kingdom - with backbone nodes, distance calculations, and latency estimates
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