Internet outage history
United Kingdom
Operational 20/20 hosts up since Oct 16, 2026 10:00 UTC
Every disruption Blackout Map has recorded in United Kingdom since monitoring began on October 16, 2026, with reported government shutdowns and submarine cable incidents.
Overview
Last 90 days
Worst status per day, last 90 daysDaily reachability
last 30 daysOur probes · hosts reachable
last 72 hoursIODA · routes and active probing, % of normal
last 72 hoursLatency from our server (Germany)
last 72 hoursThe same measurements as the live panel, per 30 minutes. Times in UTC.
Incidents
All incidents
our probes and IODANo disruptions recorded in United Kingdom since monitoring started on October 16, 2026.
Attacks and context
Context only — they don't change the status above.
DDoS attacks aimed at United Kingdom · 7 days
Per hour; each line is relative to its own busiest hour of the week (100%). Context only — attacks never change a country's status.
- Types
- UDP Flood 48% · Mirai (UDP) Flood 29% · SYN Flood 8% · Mirai (TCP) Flood 6%
- Duration
- 75% longer than 1 h · 17% under 20 min
- Size
- 73% under 500 Mbit/s · 1% over 10 Gbit/s
- Web attacks from
- British Telecommunications Limited 15% · Virgin Media Limited 10% · Amazon.com 8%
Routing incidents · 7 days · Cloudflare Radar
9 possible hijacks of networks in United Kingdom, 74+ route leaks involving it.
- Oct 29 11:08 AS62365 (DE) · 1 address blocks · confidence 8/10
- Oct 29 03:55 AS203851 (GB) · 1 address blocks · confidence 10/10
- Oct 28 23:49 AS31898 (US) · 1 address blocks · confidence 10/10
- Oct 28 10:59 AS203851 (GB) · 3 address blocks · confidence 10/10
- Oct 28 17:01 AS6461 (US) · 4 address blocks · confidence 10/10
Long-term history
Before our monitoring: IODA archive
16 incidents · 5 blackouts · 7 partial outagesOutages in United Kingdom detected by IODA (Georgia Tech) between January 2022 and the start of our own monitoring: drops in the country's internet routes (BGP) or in its reachability from IODA's active probing, compared with the day before. Each is checked against IODA's signal; small dips are left out.
| Started (UTC) | Duration | Worst level | Evidence |
|---|---|---|---|
| Jun 20, 2026 11:40 | 2 hours | Blackout | IODA (Georgia Tech): active probing, lowest 30% of normal |
| May 3, 2026 20:50 | 50 min | Blackout | IODA (Georgia Tech): active probing, lowest 38% of normal |
| Aug 10, 2025 07:30 | 30 min | Degraded | IODA (Georgia Tech): active probing, lowest 83% of normal |
| Jul 24, 2025 08:50 | 20 min | Blackout | IODA (Georgia Tech): active probing, lowest 10% of normal |
| Mar 29, 2025 10:10 | 3 hours | Blackout | IODA (Georgia Tech): active probing, lowest 31% of normal |
| Mar 25, 2025 22:10 | 2 hours | Degraded | IODA (Georgia Tech): active probing, lowest 85% of normal |
| Mar 25, 2025 20:10 | 1 hour | Degraded | IODA (Georgia Tech): active probing, lowest 80% of normal |
| Mar 25, 2025 17:30 | 40 min | Degraded | IODA (Georgia Tech): active probing, lowest 92% of normal |
| Jul 6, 2024 11:00 | 30 min | Partial outage | IODA (Georgia Tech): active probing, lowest 75% of normal |
| Nov 19, 2023 12:40 | 50 min | Blackout | IODA (Georgia Tech): active probing, lowest 24% of normal |
| Apr 4, 2023 16:50 | 30 min | Partial outage | IODA (Georgia Tech): active probing, lowest 78% of normal |
| Apr 4, 2023 15:20 | 30 min | Partial outage | IODA (Georgia Tech): active probing, lowest 76% of normal |
Show all 16
| Started (UTC) | Duration | Worst level | Evidence |
|---|---|---|---|
| Apr 4, 2023 05:40 | 1 hour | Partial outage | IODA (Georgia Tech): active probing, lowest 73% of normal |
| Apr 4, 2023 04:10 | 40 min | Partial outage | IODA (Georgia Tech): active probing, lowest 75% of normal |
| Apr 4, 2023 00:30 | 2 hours | Partial outage | IODA (Georgia Tech): active probing, lowest 72% of normal |
| Jul 2, 2022 05:10 | 30 min | Partial outage | IODA (Georgia Tech): active probing, lowest 51% of normal |
Government shutdowns and blocks
since 2019The Internet Society Pulse tracker records 1 government-ordered shutdown or block in United Kingdom since 2019.
- Regional internet shutdown in Greater London (Public Wifi), since Apr 17, 2019 — 16 hours
Shutdown data provided by Internet Society. Pulse
Submarine cable incidents
- Mar 28, 2026 Sirius South
- Mar 13, 2026 FLAG Atlantic-1 (FA-1)
Cable incidents: GeoCables (CC BY 4.0). Context only — they never change a country's status.