All systems are operational

Stickied Incidents

Saturday 28th June 2025

Seattle Network Increased latency for China

We're currently seeing increased latency to/from China for our Seattle network due to suspected fiber cuts on the US west coast, this appears to be heavily impacting China Unicom's network (AS4837) which has likely lost considerable capacity. CMIN2 should not see any impact apart from a temporary 20ms latency increase due to a re-route caused by the fiber cuts. This shouldn't take too long to be resolved.

  • The fiber cut was fixed at 4pm UTC and we can confirm everything is now looking normal.

  • Confirmed fiber cut, here is the explanation from our transport provider: There is a fiber cut between Vacaville, CA and Sacramento, CA. The fiber cut was caused by a car hitting a utility pole.

    It's likely that China Unicom is suffering capacity loss due to this same incident, there is no estimated fix time yet.

  • Past Incidents

    Monday 8th May 2023

    Seattle Network Degraded China network performance

    We're currently seeing degraded network performance to China, affecting both AS4837 and China Mobile International (CMI) routes. We are not sure of the cause although it is likely due to fiber cuts between the US and China as it has been with previous incidents. The previous incident lasted only a few days so hopefully this one is fine same.

    China Mobile has been re-routed to AS4837 to China due to CMI having even worse performance at peak time.

  • This has since stabilised.

  • We've changed China Mobile back to using CMI as it seems a bit more stable now.

  • Sunday 7th May 2023

    No incidents reported

    Saturday 6th May 2023

    No incidents reported

    Friday 5th May 2023

    No incidents reported

    Thursday 4th May 2023

    No incidents reported

    Wednesday 3rd May 2023

    No incidents reported

    Tuesday 2nd May 2023

    No incidents reported