Internet disruptions reported in western Alaska due to apparent subsea cable break

An apparent subsea fiber optic cable break is to blame for a widespread internet outage in Northwest Alaska, according to telecommunications company Quintillion.

Users first reported internet issues early Saturday morning. Quintillion subsequently confirmed the outage via Facebook at 10:02 a.m. In the post Quintillion said, “it appears there was a subsea fiber optic cable break near Oliktok Point, and the outage will be prolonged.”

The approximate site of a line break in the Quintillion Subsea Cable Network. (Map from submarinecablemap.com with KNOM edits)

The apparent cable break is in a similar location to an outage in 2023 that left customers without internet for 14 weeks. Repairs were performed by a specialized vessel during the ice-free summer months.

No timeline was provided for resumed service, although Quintillion said it is “working with our partners and customers on alternative solutions.”

When reached by email, a spokesperson for Quintillion reiterated the message shared on Facebook and was not able to share any further details.

The Quintillion Subsea Cable Network runs from Prudhoe Bay to Nome. Service disruptions are expected at each of the line’s stops along the route, including in Utqiaġvik, Wainwright, Point Hope, and Kotzebue.

Plans to expand the network from Nome to Homer are underway although won’t be operational until 2027. The project seeks to limit internet disruptions due to line breaks by rerouting internet traffic north to Prudhoe Bay or south to Homer, away from the site of the break.

In an update on Sunday, Quintillion President Mac McHale said repairs would not be possible until late summer and the company is exploring alternative options to restore service in the region.

KNOM - Nome

KNOM is our partner station in Nome. KTOO collaborates with partners across the state to cover important news and to share stories with our audiences.

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