Incident report · 2026040702
Asia-America Gateway (AAG) Cable System: 0.95× baseline latency
Resolved · 4h 59m
What we measured
| Cable | Asia-America Gateway (AAG) Cable System |
| Segment | Changi North, SG → Morro Bay, US |
| Detected | 2026-04-07 04:32 UTC |
| Resolved | 2026-04-07 09:31 UTC |
| Duration | 4h 59m |
| Observed latency | 115.4 ms |
| Baseline | 121 ms · 0.95× |
| Increase | +138% |
| Severity | warning |
Who is affected
Countries where Asia-America Gateway (AAG) Cable System comes ashore, how much of their submarine diversity this cable represents, and what our measurements into them show.
| Country | Dependence on this cable | Other submarine cables | What the measurements show |
|---|---|---|---|
| Brunei resilience index: 58 · moderate |
1 of 5 cables (20% of submarine diversity) | Asia Link Cable (ALC), Asia United Gateway East (AUG East), Labuan-Brunei Submarine Cable +1 more | no measurement today; median 262 ms over 30 days (9 routes) |
| Singapore resilience index: 78 · resilient |
1 of 46 cables (2% of submarine diversity) | APCN-2, Apricot, Asia Connect Cable-1 (ACC-1) +42 more | median 107 ms today vs 188 ms over 30 days (81 routes) - faster |
| Thailand resilience index: 100 · resilient |
1 of 18 cables (6% of submarine diversity) | Asia Africa Europe-1 (AAE-1), Asia Direct Cable (ADC), Asia Pacific Gateway (APG) +14 more | median 225 ms today vs 228 ms over 30 days (15 routes) - unchanged |
| United States resilience index: 100 · resilient |
1 of 119 cables (1% of submarine diversity) | ACS Alaska-Oregon Network (AKORN), AEC-1, Airraq +115 more | median 88 ms today vs 115 ms over 30 days (290 routes) - faster |
| Vietnam resilience index: 78 · resilient |
1 of 9 cables (11% of submarine diversity) | Asia Africa Europe-1 (AAE-1), Asia Direct Cable (ADC), Asia Link Cable (ALC) +5 more | median 264 ms today vs 255 ms over 30 days (33 routes) - unchanged |
Dependence is structural (share of the country's submarine cables), not a traffic share: real traffic distribution across cables is not public.
Path analysis
No usable traceroute data for this window.
Cross-probe verdict. Too few independent vantage points were watching this endpoint to reach a cross-probe verdict.
Timeline
- Alert #59: warning (backfilled)
- Alert #59 improving: 1/3 consecutive OK checks
- Alert #59 improving: 2/3 consecutive OK checks
- Alert #59 resolved: RTT 115.44ms (baseline 120.99ms)
Detection method
Latency is sampled continuously from our probe network. An alert opens when round-trip time to a monitored endpoint holds above its rolling baseline, and closes automatically once it returns. Full method is described on the methodology page.
How to cite
GeoCables (2026). Incident 2026040702: Asia-America Gateway (AAG) Cable System. https://geocables.com/incident/2026040702
Embed this map
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