Internet status in Guernsey Operational
Address blocks silent right now: 0% · 2026-10-22 04:07:58 UTC
Leading providers
| Provider | ASN | Share of users | Status | Signal dip |
|---|---|---|---|---|
| Sure | AS8680 | 76.6% | Operational | 0% |
| JT | AS8681 | 21.9% | Operational | 0% |
ℹ️ How to read this page
Degraded - signal dip ≥20% below its 24h baseline - partial outage or major disturbance
Major outage - dip ≥50% - large-scale loss of connectivity
“Signal dip” compares the current BGP-visibility and active-probing levels against the median of the previous 24 hours, corrected for global measurement artifacts (a worldwide simultaneous drop is ignored).
Data refreshes hourly. Per-ISP rows are measured in depth when the country shows an anomaly (pilot countries - continuously). The probable cause is a heuristic: an active fault on a submarine cable feeding the country ranks first, then routing signals, then power/access patterns.
Recorded outages in Guernsey
No country-level outages recorded for Guernsey since 21 Jun 2026.
Submarine cables feeding Guernsey
If a national outage coincides with a fault on one of these systems, the cable is a likely cause - check its live page:
Incident history
Significant incidents on cables landing here, each with its own report.
Internet in Guernsey: questions and answers
Is the internet down in Guernsey right now?
No. At the last check (22 Oct 2026 04:07 UTC) the internet in Guernsey was working normally: the signal was at its usual level.
When was the last internet outage in Guernsey?
No country-level outages have been recorded for Guernsey since 21 Jun 2026, when the records begin.
Which internet providers are watched in Guernsey?
GeoCables watches the leading providers of Guernsey: Sure (76.6%), JT (21.9%). The share is the part of the country's internet users served by the provider.
Which submarine cables connect Guernsey?
Guernsey is connected by 5 submarine cables in the GeoCables database, among them Channel Islands-9 Liberty Submarine Cable, Guernsey-Jersey-4, High-capacity Undersea Guernsey Optical-fibre (HUGO), INGRID. A break on one of them can slow down or cut international traffic.
How does GeoCables detect an internet outage?
The status comes from two independent signals: routing announcements (BGP) and active probing of networks inside the country. A drop of 20% or more below the usual level of the last 24 hours is shown as degraded, a drop of 50% or more as an outage. See internet outages in all countries.