Quantum Fiber vs. Brightspeed Internet Providers Compared

Quantum Fiber brings superior internet speeds and reliability at an appealing price.

Quantum Fiber is a fiber-optic network under the parent company Lumen Technologies, which also operates CenturyLink’s DSL-based service. According to the latest data from June 2025, the Federal Communications Commission states that Quantum Fiber is available to just over 2.3% of U.S. households, making it one of the largest fiber-optic networks in the United States [1]. The service operates in 18 states, as well as a number of cities, with the strongest coverage in Arizona, Colorado, Florida, Iowa, Minnesota, Nebraska, Oregon, Utah, and Washington [2]. In May 2025, AT&T announced plans to acquire Quantum Fiber's parent company for nearly $6 billion; the transaction is expected to close in 2026 [3]. AT&T has indicated that no immediate changes are planned and will continue to "prioritize putting customers first" following the acquisition. The sale ultimately resulted in Lumen reporting $915 million in losses for Q2 2025, with Lumen attributing losses to the accounting changes, and "not from money actually spent" [4]. Quantum Fiber delivers symmetrical fiber-optic speeds ranging from 200 Mbps to 8000 Mbps in select markets, with no data caps or contract requirements. The service stands out for its "Price for Life" guarantee, which locks in your monthly rate permanently—a significant advantage in an industry where 63% of customers reported price increases in the past year [5].

Great prices and a Price-for-Life Guarantee.

Quantum Fiber offers straightforward pricing that includes an autopay discount. Monthly costs are approximately $5 higher if you don't enroll in automatic payments. In most markets, the two primary plans available are the 500 Mbps and 1,000 Mbps (1 Gig) tiers. Multi-gigabit options—up to 2 Gig, up to 3 Gig, and up to 8 Gig plans—are available in select areas. All plans include free equipment rental during an initial period, unlimited data, and no contracts [7].

Value Analysis

When evaluating internet plans, the cost per megabit provides insight into true value. Quantum Fiber's entry-level 500 Mbps plan at $50 per month equates to 10 cents per Mbps—a competitive rate for fiber service. This pricing structure positions Quantum Fiber favorably against cable providers that may advertise lower introductory rates but dramatically increase rates after promotional periods end.

Fees and the Price-for-Life Guarantee

Quantum Fiber’s "Price for Life" guarantee locks in your plan rate permanently, making it a great deal. Unlike most cable internet providers that raise prices after the promotional period of one or two years, Quantum Fiber maintains your original rate indefinitely. If you sign up for the 200 Mbps plan at $30 per month, that rate remains locked in, even if the same plan later costs new customers $20 more. This guarantee applies specifically to your base service rate. Three potential cost increases are still possible:

1. Equipment rental fees: Quantum Fiber provides free equipment during an "initial period." After this period ends, rental fees may apply. You can drop these fees altogether by using your own compatible router.
2. Installation costs: Professional installation is currently free, though Quantum Fiber states this "could change in the future," and additional products or services might incur extra installation costs.
3. Taxes and miscellaneous fees: Local and state taxes and regulatory fees may increase over time, beyond Quantum Fiber's control.

No Data Caps or Contracts

All Quantum Fiber plans include unlimited data, allowing unrestricted internet use within the acceptable use policy without overage fees or speed throttling. The absence of contracts means you can cancel or modify service at any time without incurring early termination fees.

Brightspeed offers a very good deal on fiber internet with simple and straightforward pricing

One of Brightspeed’s real strengths is transparent pricing. Currently, there are no data caps, and no required contracts, which means you won’t get hidden fees popping up on your monthly bills as you will with many other ISPs. Brightspeed internet plan prices are excellent for fiber internet. The best part is that there are no surprise price hikes after promotional rates, which is standard practice with other providers. With Brightspeed Fiber, you can count on consistent pricing that gives you a lot of speed for a very attractive monthly cost. Brightspeed DSL pricing is not quite as good a deal because a DSL user’s internet speed and performance will be so much lower. But Brightspeed DSL may still be your best option if you have no other available cable or fiber providers in your area. Brightspeed is an active supporter of the federal Affordable Connectivity Program. If you qualify for the program, which offers payment assistance for lower-income households, Brightspeed will match your ACP payment assistance. This very unusual benefit will result in your internet service being free of charge or almost free.

Symmetrical upload and download speeds and superior reliability during peak usage times.

Quantum Fiber utilizes fiber-optic technology, which provides two key advantages over cable and DSL: symmetrical upload and download speeds, and superior reliability during peak usage times. Symmetrical speeds mean your upload capacity matches your download speed. On the 8000 Mbps plan, for instance, you receive 8000 Mbps in both directions. This is valuable for video conferencing, uploading large files, livestreaming, and cloud backups.

Fiber-to-the-Home vs. Fiber-to-the-Curb

In most installations, Quantum Fiber deploys Fiber-to-the-Home (FTTH), where fiber-optic cable runs directly to your residence. This provides the fastest possible speeds with full symmetrical performance. However, in some cases, Quantum Fiber may install Fiber-to-the-Curb (FTTC), where the final connection to your home uses coaxial cable. Even a short coaxial cable segment will reduce upload speeds compared to pure fiber. If you receive an FTTC connection, your download speeds may remain at the advertised levels, but your upload speeds will be slower than the symmetrical speeds typical of FTTH. Before installation, confirm which connection type your location will receive.

Performance Capacity

A gigabit fiber plan from Quantum Fiber supports about 10 devices simultaneously, enabling high-bandwidth activities (such as 4K streaming and online gaming) while maintaining smooth performance. The combination of low latency, high bandwidth, and consistent speeds makes fiber particularly well-suited for households with multiple heavy internet users.

Brightspeed Fiber will offer premium gigabit speed and reliability, but DSL performance will vary

If Brightspeed Fiber is available in your area, you will be getting fiber’s well-known gigabit speeds as well as a fiber connection that doesn’t slow down or glitch. Brightspeed Fiber will equip you for any internet activities you like, including online gaming, videoconferencing, and HD streaming on multiple devices. Like most fiber connections, Brightspeed will give you symmetrical upload and download speeds—an amazing advance over previous technologies. If Brightspeed is still offering DSL in your area, your performance and speed will vary depending on your location. Your download speed and your upload speed with a DSL connection will be slower than with fiber internet. You also may have higher latency than you will with fiber or cable. You can check your actual speed with our internet speed test. In many areas where Brightspeed offers DSL, there is no fiber or cable option yet. So Brightspeed may still be your best bet. You can order DSL and look forward to your turn on Brightspeed’s fiber installation list. And with the rapid pace of their planned fiber expansion, you might be next!

Get free use of a  360 Wi-Fi mesh router or use your own router

Quantum Fiber provides its 360 Wi-Fi equipment at no additional cost during an initial period. This system includes a SmartNID ONT device and up to four mesh Wi-Fi pods. The number of Wi-Fi pods will be determined by your installation technician based on your home's size. Most equipment has Wi-Fi 6 connectivity, but Wi-Fi 7 is available in select areas. The mesh network architecture offers better coverage than traditional single-router setups. This is beneficial for larger homes or properties with thick walls that impede wireless signals. The 360 Wi-Fi system creates whole-home connectivity by placing pods throughout your space, eliminating dead zones and ensuring seamless handoff as you move between areas. This setup supports the high device counts and bandwidth demands typical of modern households.

Professional Installation

Quantum Fiber currently provides free professional installation. The internet provider has noted this "could change in the future," and customers requiring additional products or services may incur extra installation costs. Professional installation ensures proper fiber-optic connection, optimal equipment placement for your home's layout, and immediate resolution of any technical issues. The installation process:

• Running fiber-optic cable to your home (FTTH) or to the curb (FTTC)
• Installing the SmartNID ONT
• Positioning mesh Wi-Fi pods throughout the home
• Testing connection speeds and performance
• Explaining system features and troubleshooting resources

Brightspeed offers advanced Wi-Fi in combo modem/router

If you order a Brightspeed Fiber plan, you will get free access to a premium Wi-Fi modem with Wi-Fi 6 technology. That advanced capability will give you 3 to 4 times faster connectivity. The modem will have greater data capacity and support extended battery life for in-home devices. (Your devices will need to be compatible with Wi-Fi 6 in order to perform at this higher level.) Modems that might come with your package would include the Actiontec C3000A, the Axon C4000, the Zyxel C4000, and the Zyxel C3000Z [3]. For some other Brightspeed plans, you may pay a $15/month equipment rental fee for your combo modem and router. Installation fees will also vary with your plan. You will get free installation for a DSL self-install or a technician installation of higher-speed fiber packages. A technician installation for DSL or a first-tier fiber plan will require a one-time $99 fee.

Quantum Fiber ratings often skewed by CenturyLink

According to the 2025 American Customer Satisfaction Index (ACSI) report comparing internet providers, Quantum Fiber scored 71 out of 100 points—a 7% decline from the previous year. This places Quantum Fiber four points below the fiber industry average of 75 [3]. The 2025 ACSI data also indicated that overall fiber provider scores decreased by 1% year-over-year across the industry [8]. The J.D. Power 2024 U.S. Residential Internet Service Provider Satisfaction Study did not differentiate between Quantum Fiber and CenturyLink DSL, instead reporting combined results for Lumen Technologies. In the West, where Quantum Fiber has its strongest presence, Lumen Technologies ranked last with a score of 511 out of 1,000. This combined scoring methodology means CenturyLink's lower-performing DSL service likely impacted the overall rating. If you compare fiber and DSL services within the Lumen portfolio, the ACSI shows Quantum Fiber's fiber service scores 16 points higher than CenturyLink's DSL offerings. This gap showcases that fiber customers report better experiences than DSL subscribers. The 7% satisfaction decline and below-average ACSI score suggest Quantum Fiber has customer experience downfalls regardless of its technical advantages. Issues affecting its customer experience ratings likely include installation delays, equipment problems, billing discrepancies, and customer service responsiveness. Reddit backs this up, with some users frustrated with Quantum Fiber's reliability: "The speed is great, consistent 550mbps up and down, but it is so unreliable" [9]. Other subscribers report a more positive experience, but do note that they are utilizing their own equipment instead of the Quantum Fiber-supplied equipment: "Love [Quantum Fiber], just get your own wifi equipment" [10]. Despite the below-average satisfaction scores, Quantum Fiber remains a strong technical choice where available. The combination of fast symmetrical speeds, unlimited data, no contracts, competitive pricing, and the price-for-life guarantee creates genuine value.

Brightspeed’s customer support is robust

Brightspeed receives 4 stars for Customer Service, with a promising beginning for a new company. Brightspeed provides a 24/7 chat interface for support as well as a helpline. The company also has a website with resources and FAQs to assist with simple questions. Some helpful features on the website include a troubleshooting & outage check, a tracker to tell you where your technician is, and a service appointment manager. A “quick bill pay” function will come in handy too. The Brightspeed Fiber network is very strong and is now producing a lot of customer satisfaction. With their rapid fiber buildout and commitment to customer service, we recommend Brightspeed as a good choice for your internet service, both now and for the future.