Incident report · 2026031102
Jakarta-Bangka-Batam-Singapore (B2JS) cable: latency up 28%, 11 Mar 2026
Resolved · 1d 13h
What we measured
| Cable | Jakarta-Bangka-Batam-Singapore (B2JS) |
| Segment | Singapore, SG → Singapore, SG |
| Detected | 2026-03-11 02:32 UTC |
| Resolved | 2026-03-12 15:32 UTC |
| Duration | 1d 13h |
| Observed latency | 116.2 ms |
| Baseline | 91 ms · 1.28× |
| Increase | +201% |
| Severity | warning |
Who is affected
Countries where Jakarta-Bangka-Batam-Singapore (B2JS) 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 |
|---|---|---|---|
| Indonesia resilience index: 100 · resilient |
1 of 73 cables (1% of submarine diversity) | Apricot, Asia Connect Cable-1 (ACC-1), Asia United Gateway East (AUG East) +69 more | median 230 ms today vs 203 ms over 30 days (1061 routes) - unchanged |
| 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 155 ms today vs 163 ms over 30 days (509 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. The effect was confined to a narrow set of paths, so a cable-wide fault is unlikely.
Timeline
- Alert #4: warning - Mersing
- Alert #4 resolved: Mersing
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 2026031102: Jakarta-Bangka-Batam-Singapore (B2JS). https://geocables.com/incident/2026031102
Embed this map
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