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UK-Channel Islands-8

In Service

237 km · 2 Landing Points · 2 Countries · Ready for Service: 1994

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Specifications

Length237 km
StatusIn Service
Ready for Service1994
Landing Points2
Countries2

Owners

BT

Landing Points (2)

Location Country Position
Goonhilly Downs, United Kingdom GB United Kingdom 50.0248°, -5.1745°
St. Ouens Bay, Jersey JE Jersey 49.2157°, -2.2259°

About the UK-Channel Islands-8 Cable System

UK-Channel Islands-8 is a point-to-point submarine cable linking United Kingdom and Jersey. Landing at Goonhilly Downs, St. Ouens Bay, it provides a direct fiber-optic path between the two countries, serving as both a primary data route and a redundancy option for neighboring cable systems. Submarine cables in this region contribute to a mesh of redundant paths that keep internet traffic flowing even when individual systems are damaged or under maintenance. GeoCables maintains health checks on this cable using distributed RIPE Atlas probes, with automated anomaly detection triggered when RTT exceeds 4x the historical baseline.

📡 Health

Status✓ Normal
RTT74.05 ms / base 42.39 ms
Last checked2026-04-19 02:31

Monitored using RIPE Atlas probes. Open monitoring →

📊 RTT History

Route: #818 → St. Ouens Bay Measured: 2026-04-19 02:31
74.1 ms
Min Avg Max #
7 days 11.0 43.3 82.0 36
30 days 11.0 43.2 82.0 38
60 days 11.0 43.2 82.0 38

Health Timeline

Wed, Apr 15
View full event log →
🔗
Hop Anomaly
8ms → 59ms (7.16×)
08:30
Tue, Apr 14
View full event log →
St. Ouens Bay
RTT Spike
37ms → 74ms (2.03×)
02:31

FAQ

What is the length of the UK-Channel Islands-8 cable?
The UK-Channel Islands-8 submarine cable is 237 km long.
Which countries does UK-Channel Islands-8 connect?
UK-Channel Islands-8 connects 2 countries via 2 landing points.
Who owns the UK-Channel Islands-8 cable?
UK-Channel Islands-8 is owned by a consortium including BT.
When was UK-Channel Islands-8 put into service?
The UK-Channel Islands-8 cable entered service in 1994.
UK-Channel Islands-8
  • Length237 km
  • StatusIn Service
  • Ready for Service1994

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