Internet backbone provider Level 3 Communications reported "wide spread network instability" overnight, causing connectivity problems for many ISPs and hosting companies that rely on Level 3 for high-speed Internet access. The outage lasted several hours before service was restored. A discussion on the North American Network Operators Group mailing list offers additional details on the outage.

Level 3 is one of the largest providers of wholesale dial-up service to ISPs in North America and also connects millions of broadband subscribers to the Internet through its cable and DSL partners.