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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°

📡 Live Performance

103
measurements
6
probes
43
days monitored
43.0
ms avg RTT
0
anomalies

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.

Measurement sources

Probe Location Samples Avg Min–Max Last seen
#818 RIPE Atlas 98 43.4 ms 9.8–95.5 2026-05-24
#1014473 own probe Minsk BY 1 25.1 ms 25.1–25.1 2026-05-20
#1014589 own probe Almaty KZ 1 88.5 ms 88.5–88.5 2026-05-20
#1014597 own probe Tbilisi GE 1 37.4 ms 37.4–37.4 2026-05-20
#1014969 own probe Jerusalem IL 1 4.2 ms 4.2–4.2 2026-05-20
#1015523 own probe Moscow RU 1 16.8 ms 16.8–16.8 2026-05-20

About the UK-Channel Islands-8 Cable System

Overview

UK-Channel Islands-8 is an intercontinental submarine cable that connects Jersey with the United Kingdom. The cable was ready for service in 1994 and is operated by BT, which is its sole owner.

Route and Landings

Jersey: St. Ouens Bay, Jersey

United Kingdom: Goonhilly Downs, United Kingdom

Ownership and Operators

The cable is owned by BT.

Status and Timeline

UK-Channel Islands-8 was ready for service in 1994.

Strategic Context

The route provides a direct fiber-optic path, serving both primary data routing needs and redundancy for other cable systems in the region, connecting Jersey with the United Kingdom.

BT, as one of Europe's leading telecommunications companies, has a significant presence across multiple countries, including the United Kingdom and parts of Western Europe. The company operates in various sectors, providing services such as fixed-line broadband, mobile communications, and internet access to millions of customers.

📡 Health

Status✓ Normal
RTT77.92 ms / base 47.16 ms
Last checked2026-05-24 08:30

Monitored using RIPE Atlas probes. Open monitoring →

📊 RTT History

Route: #818 → St. Ouens Bay Measured: 2026-05-24 08:30
77.9 ms
Min Avg Max #
7 days 9.9 44.5 95.5 34
30 days 9.8 43.6 95.5 58
60 days 9.8 43.4 95.5 98

Health Timeline

Wed, May 20
View full event log →
St. Ouens Bay
Resolved
43ms → 10ms
16:30
📊
St. Ouens Bay
Improving
43ms → 10ms
16:00
St. Ouens Bay
RTT Spike
43ms → 95ms (2.23×)
15:01
🔴
St. Ouens Bay
Anomaly Confirmed
43ms → 95ms (2.23×)
15:01
🚨
St. Ouens Bay
Alert Created
43ms → 95ms (2.23×)
15:01
St. Ouens Bay
RTT Spike
39ms → 83ms (2.12×)
14:30
Wed, May 13
View full event log →
🔗
Hop Anomaly
8ms → 67ms (8.22×)
20:30
Thu, Apr 23
View full event log →
🔗
Hop Anomaly
8ms → 60ms (7.38×)
15:00
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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