Quintillion Subsea Cable Network - Break

A break in the Quintillion fibre-optic network knocked out internet and cellular service across parts of Arctic Alaska's North Slope after the operator detected an outage late on Monday, 22 April 2024. According to Anchorage Daily News, the fault occurred on the onshore portion of the route, between Oliktok Point and the Greater Kuparuk Area roughly 40 miles west of Prudhoe Bay, rather than in the subsea segment. Quintillion attributed the damage to environmental conditions in the Kuparuk River oil-and-gas operating area, where one fibre on the route was severed.

Communities including Utqiagvik, Wainwright, Atqasuk, Point Hope, Nome and Kotzebue were affected, as multiple carriers, among them Alaska Communications, GCI, AT&T, OTZ Telecommunications and the Arctic Slope Telephone Association Cooperative, rely on Quintillion's backbone. The disruption degraded residential internet and mobile service and briefly affected 911 access for some AT&T users in Kotzebue. Quintillion reconfigured the network to temporarily restore service by Tuesday afternoon while pursuing a permanent repair, as reported by Must Read Alaska. The incident followed a separate, more severe event in June 2023, when the company's submarine cable was cut by sea-ice scouring north of Oliktok Point, leaving roughly 20,000 customers with degraded connectivity for months until repairs were completed that September.

This is most likely an accidental, environment-related fault rather than sabotage. Reporting indicates the 2024 break occurred on the terrestrial segment of the route and was attributed by Quintillion to environmental conditions in the Kuparuk oil-and-gas area, with no indication of deliberate or foreign interference. The closely associated 2023 outage was caused by natural sea-ice scouring of the subsea cable. The episodes underscore the fragility of single-path Arctic infrastructure and the lack of redundancy for remote North Slope communities, but there is no evidentiary basis to link them to hybrid-warfare activity.