Where Quantum Fiber can light up a Boulder address today, ALLO's city-backed fiber is still a 2026 promise — which makes this less a plan-versus-plan shootout than a buy-now-versus-wait decision. Both run fiber to the home with symmetrical speeds and no data caps. The difference that matters right now is that one of …

CenturyLink is Boulder's second major wired internet provider after Xfinity, serving much of the city with DSL and, in select areas, fiber. CenturyLink has been rebranding to Quantum Fiber in markets where it has deployed fiber infrastructure — Boulder is in various stages of that transition. Plans Available in Boulder …