BLACKOUT MAP

Internet outage history

Vietnam

Operational 60/60 hosts up since Oct 16, 2026 10:00 UTC

Every disruption Blackout Map has recorded in Vietnam since monitoring began on October 16, 2026, with reported government shutdowns and submarine cable incidents.

Live status of Vietnam RSS feed

Cao Bang — Operational · 2/2 hosts upThanh Hoa — Operational · 2/2 hosts upThai Nguyen — Operational · 2/2 hosts upQuang Tri — Operational · 2/2 hosts upKhanh Hoa — Operational · 2/2 hosts upVinh Long — Operational · 2/2 hosts upHai Phong — Operational · 2/2 hosts upDong Thap — Operational · 2/2 hosts upDong Nai — Operational · 2/2 hosts upDak Lak — Operational · 2/2 hosts upPhu Tho — Operational · 3/3 hosts upDa Nang City — Operational · 3/3 hosts upHo Chi Minh City (HCMC) — Operational · 6/6 hosts upHanoi — Operational · 10/10 hosts up
Regions right now Operational Degraded Partial outage Blackout Each dot is a state or province we measure separately, coloured by its status now; bigger dots have more hosts. The country is shaded in its overall status.
0incidents recorded
0total disruption
—longest incident
2regional outages
18outages measured since 2022
1reported shutdowns since 2019

Overview

Last 90 days

Worst status per day, last 90 days
Aug 1, 2026 Operational Degraded Partial outage Blackout Not monitored yet Today

Daily reachability

last 30 days
Oct 16Oct 230%50%100%
Hosts uplowest hour

Our probes · hosts reachable

last 72 hours
Oct 27Oct 28Oct 290%50%100%

IODA · routes and active probing, % of normal

last 72 hours
Oct 27Oct 28Oct 290%50%100%
BGP routesActive probingIODA (Georgia Tech)

Latency from our server (Germany)

last 72 hours
Oct 27Oct 28Oct 290 ms150 ms300 ms
Latency25–75%

The same measurements as the live panel, per 30 minutes. Times in UTC.

Incidents

All incidents

our probes and IODA

No disruptions recorded in Vietnam since monitoring started on October 16, 2026.

Regional outages · our probes

Outages in one state or province while the rest of Vietnam stayed online, measured by our own probes. Hosts are placed by IP geolocation (DB-IP), which is sometimes off.

RegionStarted (UTC)DurationWorst level
Thua Thien HueOct 23, 2026 06:5010 min Blackout
An GiangOct 17, 2026 09:203 hours Blackout

Attacks and context

Context only — they don't change the status above.

DDoS attacks aimed at Vietnam · 7 days

Oct 23Oct 24Oct 25Oct 26Oct 27Oct 280%50%100%
Network DDoSWeb attacksCloudflare Radar

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 44% · DNS Amplification 3% · NTP Amplification 2%
Duration
53% longer than 1 h · 37% under 20 min
Size
100% under 500 Mbit/s · 0% over 10 Gbit/s
Web attacks from
Viettel Group 33% · VNPT Corp 31% · FPT Telecom Company 20%

Routing incidents · 7 days · Cloudflare Radar

2 possible hijacks of networks in Vietnam, 14+ route leaks involving it.

  • Oct 24 16:38 AS135905 (VN) · 1 address blocks · confidence 10/10
  • Oct 24 03:11 AS135905 (VN) · 2 address blocks · confidence 10/10

Long-term history

Before our monitoring: IODA archive

18 incidents · 6 blackouts · 8 partial outages

Outages in Vietnam 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)DurationWorst levelEvidence
Oct 15, 2026 22:2030 min BlackoutIODA (Georgia Tech): active probing, lowest 6% of normal
Aug 23, 2026 01:2030 min Partial outageIODA (Georgia Tech): active probing, lowest 77% of normal
Jun 20, 2026 11:402 hours BlackoutIODA (Georgia Tech): active probing, lowest 30% of normal
May 3, 2026 20:5050 min BlackoutIODA (Georgia Tech): active probing, lowest 42% of normal
Mar 6, 2026 17:502 hours Partial outageIODA (Georgia Tech): active probing, lowest 67% of normal
Feb 26, 2026 12:102 hours Partial outageIODA (Georgia Tech): active probing, lowest 78% of normal
Feb 26, 2026 10:201 hour Partial outageIODA (Georgia Tech): active probing, lowest 76% of normal
Feb 22, 2026 18:4040 min Partial outageIODA (Georgia Tech): active probing, lowest 73% of normal
Aug 10, 2025 07:3030 min DegradedIODA (Georgia Tech): active probing, lowest 83% of normal
Jul 24, 2025 08:5020 min BlackoutIODA (Georgia Tech): active probing, lowest 10% of normal
Mar 29, 2025 10:103 hours BlackoutIODA (Georgia Tech): active probing, lowest 35% of normal
Mar 25, 2025 20:104 hours Partial outageIODA (Georgia Tech): active probing, lowest 80% of normal
Show all 18
Started (UTC)DurationWorst levelEvidence
Mar 25, 2025 17:3050 min DegradedIODA (Georgia Tech): active probing, lowest 92% of normal
Mar 25, 2025 14:5040 min DegradedIODA (Georgia Tech): active probing, lowest 93% of normal
Jul 6, 2024 11:0030 min Partial outageIODA (Georgia Tech): active probing, lowest 71% of normal
Nov 19, 2023 12:401 hour BlackoutIODA (Georgia Tech): active probing, lowest 23% of normal
Sep 5, 2023 23:3040 min Partial outageIODA (Georgia Tech): active probing, lowest 73% of normal
Mar 11, 2023 17:204 hours DegradedIODA (Georgia Tech): routes + active probing, lowest 92% of normal

Government shutdowns and blocks

since 2019

The Internet Society Pulse tracker records 1 government-ordered shutdown or block in Vietnam since 2019.

  • National internet shutdown (Facebook), since Feb 16, 2020 — 50 days

Shutdown data provided by Internet Society. Pulse

Submarine cable incidents

No submarine cable incidents recorded for Vietnam.

Cable incidents: GeoCables (CC BY 4.0). Context only — they never change a country's status.