AT&T Fiber · Phoenix, AZ

Quantum Fiber Internet Is Now AT&T Fiber in Phoenix, Arizona

Quantum Fiber Internet Phoenix AZ is transitioning to AT&T Fiber following AT&T's acquisition of Lumen's consumer fiber network across Arizona.

Phoenix was one of the primary markets included in the acquisition covering the entire Maricopa County footprint.

SpeedUp to 5 GIG symmetric
DataUnlimited, no caps
ContractMonth-to-month
Support24/7 U.S.-based

If you are a current Quantum or CenturyLink customer in Phoenix this change affects your account, your billing, and your service relationship directly.

The fiber lines running to your Phoenix home or business are not being replaced. The network behind them is being absorbed into AT&T's national infrastructure under new ownership and a new service model.

Check your Phoenix address to see current AT&T Fiber plans available at your specific location today.

Quantum Fiber Internet Is Now AT&T Fiber in Phoenix, Arizona

01

Why the Quantum Fiber to AT&T Fiber Transition Is Happening Across Phoenix, Arizona

Lumen Technologies operated its consumer fiber business across the Southwest under two brand names. Quantum Fiber in markets where infrastructure had been modernized and upgraded to full fiber. CenturyLink in areas still running older legacy DSL technology that had not yet been converted.

Phoenix fell primarily under the Quantum Fiber brand. Established neighborhoods from the Biltmore corridor through North Phoenix and the master-planned communities near Desert Ridge all sit within the Quantum Fiber footprint that is now transitioning to AT&T.

The acquisition moves the entire Lumen consumer fiber operation in Maricopa County under AT&T's infrastructure, expansion planning, and customer service structure. For Phoenix customers this means a larger network backing the same fiber lines that already run to your address.

Why the Quantum Fiber to AT&T Fiber Transition Is Happening Across Phoenix, ArizonaPhoenix, AZ

Same Fiber Lines. Bigger Network Behind Them.

The physical fiber infrastructure serving your Phoenix neighborhood does not change. What changes is the company operating it, expanding it, and supporting it. AT&T operates one of the largest fiber networks in the United States. Phoenix Quantum Fiber customers transitioning to AT&T gain access to national-scale infrastructure, investment, and support resources that Lumen's standalone consumer operation could not match in the Maricopa County market.

02

What Actually Changes for Quantum Fiber Customers in Phoenix AZ

Understanding what shifts during the transition helps Phoenix households and businesses plan accordingly. Here is a clear breakdown of what changes and what stays exactly the same.

What Actually Changes for Quantum Fiber Customers in Phoenix AZPhoenix, AZ

Billing and Account Move to AT&T

Monthly billing transfers from Quantum or Lumen to AT&T. Phoenix customers receive direct communication from AT&T regarding their specific account migration timeline, updated billing portal access, and any changes to existing plan terms before the changeover reaches their address.

Support Moves to AT&T's Network

Technical support, outage reporting, and all service requests transfer to AT&T's support infrastructure. Phoenix customers who previously contacted Quantum or CenturyLink support will reach AT&T directly for every service need once the transition processes their account.

Your Service Continues Without Interruption

No new installation is required at your Phoenix address to complete the transition. Your existing fiber connection continues operating throughout the account migration process. There is no service gap and no technician visit needed simply to complete the billing and account transfer from Quantum to AT&T.

03

Faster Speeds Explained — What AT&T Fiber Brings to Phoenix Beyond the Quantum Offering

Quantum Fiber plans Phoenix Arizona topped out at 940 Mbps on their highest residential tier across most Maricopa County markets. AT&T Fiber introduces a broader plan structure and in many Phoenix addresses the ability to access speeds and plan options that were not available under the Quantum service model.

Faster Speeds Explained — What AT&T Fiber Brings to Phoenix Beyond the Quantum OfferingPhoenix, AZ

Symmetrical Speeds Continue on Every Plan

AT&T Fiber delivers equal upload and download speeds on every residential tier just as Quantum did. That symmetry continues without interruption. Phoenix customers transitioning from Quantum will find the same fundamental fiber performance characteristic they already rely on preserved across every AT&T Fiber plan tier.

Quantum Fiber vs AT&T Fiber Phoenix AZ — How the Plans Compare

Quantum Fiber residential plans in Phoenix ranged from 200 Mbps to 940 Mbps across available tiers. AT&T Fiber residential plans in Phoenix offer 300 Mbps, 500 Mbps, and 1,000 Mbps symmetrical speeds with clear pricing at each tier.

Phoenix households previously on a Quantum 200 Mbps plan may find the AT&T 300 Mbps entry tier a natural step up. Customers on Quantum's 500 Mbps or 940 Mbps tiers will find directly matching or superior options within the AT&T Fiber plan structure available at their specific Phoenix address.

04

Equipment Changes During the Phoenix Arizona Quantum to AT&T Transition

Equipment Changes During the Phoenix Arizona Quantum to AT&T TransitionPhoenix, AZ

Your Quantum Gateway May Be Replaced

Depending on the equipment currently installed at your Phoenix address AT&T may replace your existing Quantum gateway with an AT&T compatible device as part of the transition process. Where this applies it is coordinated through your AT&T account migration communication before any technician visit occurs at your Phoenix home or business.

Equipment Replacement Comes at No Cost to You

Where gateway replacement is required as part of the Quantum to AT&T transition in Phoenix it is handled at no additional charge to the customer. AT&T's installation team manages the equipment swap and confirms your Phoenix connection is performing correctly before completing the visit and closing the appointment.

FAQ

Frequently Asked Questions About Quantum Fiber to AT&T in Phoenix, AZ

Do I Need to Do Anything to Complete the Transition?
AT&T contacts Phoenix Quantum customers directly with transition details and any required steps specific to their account. In most cases the migration completes without any action required beyond confirming updated billing information when prompted by AT&T.
Will My Internet Speed Change During the Transition?
Your connection continues at its current speed throughout the transition. Once your account moves to AT&T you have the option to review available plans at your Phoenix address and adjust your tier if a better match exists under the AT&T plan structure.
Is Quantum Fiber Availability Phoenix AZ Changing After the Transition?
The fiber coverage footprint in Phoenix does not shrink as a result of the transition. AT&T is actively expanding coverage across Maricopa County. Phoenix addresses that were not reachable under Quantum may become eligible as AT&T extends infrastructure into sections of the city that Lumen had not yet reached.
Can I Keep My Current Plan Price After Moving to AT&T?
Plan pricing and terms are communicated to each Phoenix customer individually as part of the account migration process. Check your address above to see current plan options and pricing available at your specific Phoenix location after the transition.
What Happens to Lumen Fiber Internet Phoenix Arizona Customers Who Are Not on Quantum?
Phoenix addresses still receiving CenturyLink DSL service through Lumen are also part of the broader AT&T acquisition. Fiber internet providers Phoenix Arizona under the AT&T umbrella will work to extend upgraded fiber connectivity to those addresses as expansion and infrastructure investment continues across Maricopa County under AT&T's ownership.
Ready when you are

AT&T Fiber Pricing for Phoenix Arizona Customers After the Quantum Transition

High speed fiber internet Phoenix AZ from AT&T is available at the following residential rates at qualifying Phoenix addresses after the transition.

Internet 300: 300 Mbps symmetrical upload and download. $55 per month.

Internet 500: 500 Mbps symmetrical upload and download. $65 per month.

Internet 1 Gig: 1,000 Mbps symmetrical upload and download. $80 per month.

Discounts may apply. AT&T wireless customers receive an automatic 20 percent discount on their monthly fiber plan when both services are active on the same account. Pricing subject to address eligibility. Check your Phoenix address above for confirmed availability and current plan options at your specific location.

See current AT&T Fiber plans and pricing on our AT&T Fiber Internet page for Phoenix, AZ.

Already confirmed at your address? See our AT&T Fiber Available page for Phoenix, AZ.

Address not confirmed yet? Visit our Manual Fiber Check page for Phoenix, AZ.