CenturyLink Speed Test in Boulder

Test Your CenturyLink Speed in Boulder

Measure your real CenturyLink download speed, upload speed, ping, jitter, and bufferbloat in Boulder, CO. See how your connection truly performs.

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Boulder Average Speeds

Avg Download

220 Mbps

Avg Upload

44 Mbps

Avg Ping

14 ms

City averages based on aggregated speed test data. Your actual CenturyLink speeds may differ based on plan, location, and network conditions.

About CenturyLink / Quantum Fiber in Boulder

CenturyLink / Quantum Fiber provides internet service to residents across Boulder, CO using Fiber (Quantum Fiber / FTTH) and DSL (legacy CenturyLink) technology. With download speeds ranging from 100-8000 Mbps (Fiber), 10-100 Mbps (DSL) and upload speeds of 100-8000 Mbps (Fiber), 1-10 Mbps (DSL), CenturyLink is a key provider serving the Boulder metro area. The average download speed across Boulder is approximately 220 Mbps, though your individual speeds will depend on your specific plan, neighborhood, and connection type.

To find out how your CenturyLink connection actually performs in Boulder, run a speed test on Pong.com. Unlike basic speed tests that only measure raw throughput, Pong.com also tests bufferbloat, jitter, and latency under load. This gives you a complete picture of your connection health, not just a download speed number. Testing across the real public internet means your results reflect what you experience when browsing, streaming, and video calling in Boulder.

CenturyLink Plans Available in Boulder

PlanDownloadUploadPrice
Simply Unlimited100 Mbps100 Mbps$50/mo
Quantum Fiber 500500 Mbps500 Mbps$60/mo
Quantum Fiber 940940 Mbps940 Mbps$70/mo
Quantum Fiber 2 Gig2000 Mbps2000 Mbps$90/mo
Quantum Fiber 8 Gig8000 Mbps8000 Mbps$175/mo

Prices and speeds are approximate and may vary by location in Boulder. Promotional pricing may differ from regular rates.

Common CenturyLink Issues in Boulder

DSL speeds often far below advertised maximum
Extremely slow DSL (under 10 Mbps) in rural areas
Long provisioning times for new fiber installations
Intermittent DSL disconnections in aging copper infrastructure
Latency spikes on DSL during wet weather
Confusing branding between CenturyLink DSL and Quantum Fiber

Other Internet Providers in Boulder

Xfinity

200-1200 Mbps down, 5-35 Mbps up

Cable (DOCSIS 3.1), Fiber (select areas)

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T-Mobile Home Internet

50-300 Mbps down, 5-30 Mbps up

5G (n41, n71), 4G LTE (fallback)

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Related Pages

CenturyLink / Quantum Fiber Speed Test

View nationwide CenturyLink speed test info, plans, and common issues.

Boulder Internet Speed Test

Compare all internet providers and speeds in Boulder, CO.

CenturyLink in Boulder FAQ

What speeds does CenturyLink offer in Boulder?
CenturyLink offers download speeds of 100-8000 Mbps (Fiber), 10-100 Mbps (DSL) and upload speeds of 100-8000 Mbps (Fiber), 1-10 Mbps (DSL) in Boulder, CO, depending on your plan and connection type (Fiber (Quantum Fiber / FTTH), DSL (legacy CenturyLink)). Actual speeds may vary by neighborhood and network conditions. The average download speed across Boulder is approximately 220 Mbps. Run a test on Pong.com to see your real speeds.
Is CenturyLink good in Boulder?
CenturyLink performance in Boulder depends on your specific neighborhood, plan, and connection type. The citywide average download speed is around 220 Mbps with a typical ping of 14 ms. To find out how CenturyLink performs at your address, run a speed test on Pong.com. It measures download speed, upload speed, ping, jitter, and bufferbloat to give you a complete picture of your connection health.
How do I test my CenturyLink speed in Boulder?
Visit Pong.com and click the start button. The test takes less than a minute and measures your CenturyLink download speed, upload speed, ping, jitter, and bufferbloat in Boulder. For the most accurate results, use a wired Ethernet connection and close background applications. Pong.com tests across the real public internet, not inside CenturyLink's own network, so you get results that reflect your actual experience.
What alternatives to CenturyLink are available in Boulder?
Other internet providers available in Boulder include Xfinity, T-Mobile Home Internet. The best provider depends on your address, budget, and usage needs. Test your current CenturyLink connection on Pong.com, then compare your results with the speeds and pricing other providers offer in your area.

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