Jakarta-Bangka-Bintan-Batam-Singapore (B3JS): 0.38× baseline latency
What we measured
| Cable | Jakarta-Bangka-Bintan-Batam-Singapore (B3JS) |
| Segment | Tanah Merah, SG → Jakarta, ID |
| Detected | 2026-09-17 10:02 UTC |
| Resolved | 2026-09-17 13:02 UTC |
| Duration | 3h 0m |
| Observed latency | 15.7 ms |
| Baseline | 41.6 ms · 0.38× |
| Increase | +122% |
| Severity | critical |
Who is affected
Countries where Jakarta-Bangka-Bintan-Batam-Singapore (B3JS) comes ashore, how much of their submarine diversity this cable represents, and what our probes currently measure into them.
| Country | Dependence on this cable | Other submarine cables | Our probes see |
|---|---|---|---|
| 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 243 ms today vs 252 ms over 30 days (6 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 222 ms today vs 221 ms over 30 days (6 routes) - unchanged |
Dependence is structural (share of the country's submarine cables), not a traffic share: real traffic distribution across cables is not public. Terrestrial links are not measured.
Timeline
- Alert 2026091701: warning — ratio 2.21x
- Alert #203 improving: 1/3 consecutive OK
- Alert #203 improving: 2/3 consecutive OK
- Alert #203 improving: 2/3 consecutive OK
- Alert #203 resolved: RTT 15.72ms (baseline 41.6ms), 3 consecutive OK
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.