Antillas 1 cable: latency up to 3.6× normal, 26 Oct 2026
What we measured
| Cable | Antillas 1 |
| Segment | Cacique, DO → Isla Verde, US |
| Detected | 2026-10-26 03:02 UTC |
| Resolved | 2026-10-26 08:32 UTC |
| Duration | 5h 30m |
| Observed latency | 72.6 ms |
| Baseline | 83.3 ms · 3.63× |
| Increase | +263% |
| Severity | warning |
Who is affected
Countries where Antillas 1 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 |
|---|---|---|---|
| Dominican Republic resilience index: 90 · resilient |
1 of 10 cables (10% of submarine diversity) | Alisios, America Movil Submarine Cable System-1 (AMX-1), ARCOS +6 more | average 222 ms over the last day vs 227 ms over 30 days - unchanged |
| United States resilience index: 100 · resilient |
1 of 122 cables (1% of submarine diversity) | ACS Alaska-Oregon Network (AKORN), AEC-1, Airraq +118 more | median 106 ms today vs 108 ms over 30 days (3311 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
Traffic kept the same route. Latency rose without a visible path change, which points at congestion or a fault on the existing route rather than a reroute.
Cross-probe verdict. Our own cross-check concluded this was an operator reroute, not a cable fault. We publish it anyway, labelled as such.
Timeline
- Alert 2026102601: warning - ratio 3.63x
- Alert #239 improving: 1/3 consecutive OK
- Alert #239 improving: 2/3 consecutive OK
- Alert #239 resolved: RTT 72.61ms (baseline 83.33ms), 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.