In Q4 2025, Cogent generated $240.5 million in service revenue, down year over year, and reported a net loss of $30.8 million. Despite lower revenue, adjusted EBITDA rose sequentially to $76.7 million with a 31.9% margin, supported by growth in wavelength services and IPv4 revenue.
Service revenue totaled $240.5 million, declining year over year.
Net loss was $30.8 million, with diluted EPS of -$0.64.
Adjusted EBITDA increased to $76.7 million, with margin expanding to 31.9%.
Wavelength revenue grew strongly year over year to $12.1 million, with connections up 84.6%.
The company did not provide explicit financial guidance for future quarters but highlighted continued focus on dividend payments and integration of acquired wireline assets.
Visualization of income flow from segment revenue to net income
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