The company said the determination was made based on the nature of the fiber cuts, the extent of damage, and the makeup of impacted customers. In all, more than 50,000 residential customers and more than 500 business customers were affected for up to 30 hours.

Charter Communications has labelled the June 15 attack on its network infrastructure as an "act of domestic terrorism." The vandalism caused an outage for Spectrum Mobile customers in the Los Angeles neighborhood of Van Nuys last month.

Leading pay-TV and broadband provider Charter Communications says its internal probe into a June 15 attack on its network in Van Nuys, CA has determined it was “an act of domestic terrorism.” Citing “the nature of the fiber cuts,