If your business still pays for traditional analog phone lines, the question is no longer whether the underlying copper network will eventually change. That transition is already underway.
AT&T says it plans to exit copper in the majority of its wireline footprint by the end of 2029. In its Q2 2026 earnings prepared remarks, the company said it had approval to discontinue legacy services in more than 30% of its wire centers, with those discontinuations becoming effective by late 2026.
The FCC has also moved to make copper retirement easier. In March 2026, the agency adopted new rules intended to streamline the process carriers use to retire older copper infrastructure and migrate customers to modern networks. The underlying FCC 26-19 Report and Order contains the revised copper-retirement notice rules.
For Houston-area businesses, though, the important question may not be:
“When are POTS lines going away?”
A better question is:
“What in our business is still connected to one?”
That answer can be surprisingly important.
Are POTS lines really going away?
Yes, although there is not one national date when every POTS line in the United States suddenly stops working.
POTS stands for Plain Old Telephone Service, the traditional analog telephone service historically delivered over copper wiring.
Major telecommunications companies are gradually retiring those networks as customers move to fiber, wireless, and IP-based communications.
AT&T says it intends to exit copper across the majority of its wireline footprint by the end of 2029. The company has already stopped selling targeted legacy copper services in much of its footprint and has received regulatory approval to discontinue service in a growing number of wire centers. Its Q2 2026 earnings remarks provide the more specific figure: approval to discontinue legacy services in more than 30% of wire centers by late 2026.
That makes the transition real, but it does not mean every business has the same deadline.
Copper retirement happens market by market and sometimes even facility by facility.
Is copper retirement happening in Houston and Texas?
Yes.
AT&T Texas has already filed numerous copper-retirement notices involving Texas wire centers, including locations within the Houston area.
Recent notices have included facilities associated with Houston, Cypress, Satsuma, Airline, Westfield, Underwood, and other nearby wire centers. Some of those particular notices state that no active customers were being served by the facilities being retired, which is an important distinction. They do not mean that every Houston business using copper service is about to lose it.
What they do show is that copper retirement is no longer theoretical or limited to some distant market.
The infrastructure transition is already taking place around Houston.
Why should a business care about an old phone line?
Because an analog line may not actually be used for a telephone.
That is where this transition gets more interesting.
Systems such as elevators, fire panels, burglar alarms, fax equipment, point-of-sale equipment, emergency phones, and other analog devices may still use traditional lines.
A business can therefore have a legacy phone line sitting on its telecommunications bill without anyone thinking of it as a “phone.”
It may instead be supporting a piece of building infrastructure that has quietly worked for years.
That changes the conversation.
The first step should not necessarily be:
“What service should replace our POTS line?”
It should be:
“What is connected to this number?”
What business systems can still depend on POTS lines?
Older analog connections may still support equipment such as:
- Elevator emergency phones
- Fire or life-safety panels
- Security and burglar alarms
- Gate and access-control systems
- Fax machines
- Emergency or courtesy phones
- Legacy point-of-sale or modem equipment
- Building systems designed to communicate over analog telephone lines
Not every system in these categories requires POTS, and newer installations frequently use other technologies.
The problem is that older equipment may have been installed years before the person currently responsible for the business, building, or IT environment was involved.
That is why simply looking around the office for an old desk phone isn’t enough.
How can I tell whether my business still has POTS lines?
Start with the bill.
Look at telecommunications invoices from AT&T, Frontier, or any other incumbent local telephone provider and identify individual telephone numbers, analog lines, or legacy services that aren’t immediately recognizable.
Then determine what each number actually serves.
A line associated with an elevator room, fire system, alarm panel, fax machine, or remote piece of equipment deserves additional investigation before it is canceled or changed.
This can become especially important for businesses with multiple buildings or locations.
A company may have modern cloud phones throughout the organization while still paying for a handful of analog lines that serve completely different purposes.
Inventory first. Replace second.
That is a much safer approach than simply canceling services because they appear old.
Do businesses need to replace every POTS line immediately?
No.
The existence of a copper-retirement strategy does not mean every analog line needs to be ripped out tomorrow.
AT&T’s transition is being implemented over several years and across different geographic areas, as described in its copper-network transition guidance.
The better reason to investigate now is that discovering a dependency during a planned review is far easier than discovering it during a carrier migration, service failure, or building-system problem.
Knowing what you have also gives you time to evaluate alternatives instead of being forced into the first available option.
What replaces a POTS line?
There isn’t one universal replacement.
Depending on the equipment, location, regulatory requirements, and available connectivity, alternatives may involve wireless, IP-based voice, SIP, fiber-connected services, or purpose-built POTS replacement solutions. AT&T describes migration paths including fiber, wireless, Internet Air, and AT&T Phone – Advanced in its consumer-facing copper transition guidance.
That distinction matters.
Replacing an analog office telephone is different from replacing communications used by an elevator, fire panel, or alarm system.
A replacement also needs to be evaluated against the requirements of the equipment it supports rather than simply whether it can produce a dial tone.
For certain life-safety or regulated systems, businesses should also verify requirements with the appropriate equipment provider, alarm company, elevator contractor, authority having jurisdiction, or other qualified party before making changes.
Why are carriers moving away from copper?
Maintaining a large legacy copper network is expensive, particularly as fewer customers continue using it.
The FCC said in its March 2026 action that maintaining aging copper infrastructure can divert investment away from newer high-speed networks. The related FCC 26-19 Report and Order sets out the revised retirement-notice rules.
AT&T has similarly described copper decommissioning as part of a broader move toward fiber, wireless, and other advanced connectivity services in its 2026 network-transition explanation.
From the carrier’s perspective, the economics increasingly favor modern infrastructure.
From the customer’s perspective, that means equipment designed around decades-old telecommunications infrastructure eventually needs another way to communicate.
What should Houston businesses do now?
For most businesses, there is no reason to panic.
There is a good reason to inventory.
Pull your telecommunications bills and identify services nobody can immediately explain. Match telephone numbers to physical locations and equipment. Ask facilities, IT, security, and building vendors what still depends on analog connectivity.
For multi-location businesses, property managers, medical practices, senior-care providers, commercial buildings, schools, warehouses, and other organizations with substantial physical infrastructure, that review may be particularly worthwhile.
The goal is not to replace technology simply because it is old.
The goal is to avoid finding out what an unidentified phone line did after someone disconnects it.
Is there a single POTS shutoff date?
No.
There is no single nationwide date on which all traditional copper telephone service will disappear.
Different carriers are retiring infrastructure on different schedules, and individual retirement or discontinuance actions can apply to particular geographic areas or wire centers.
AT&T has announced a broader goal of exiting the majority of its wireline copper footprint by the end of 2029, but individual transitions are already taking place. The timeline is summarized in AT&T’s 2026 network-transition guidance.
Is AT&T shutting down copper lines in Texas?
AT&T Texas has already issued multiple notices involving retirement of copper facilities throughout Texas, including notices associated with Houston-area wire centers.
The impact varies by location. Some notices concern unused copper infrastructure with no active customers, while others may involve migration of existing customers to newer facilities.
Businesses should evaluate their actual services rather than assuming that a retirement notice affecting one part of Houston applies everywhere.
Are analog lines used only for voice calls?
No.
Traditional analog lines have historically been used by many kinds of equipment in addition to telephones, including alarms, elevators, fire panels, fax machines, and other building or communications systems.
That is one of the biggest reasons businesses should identify what a legacy line supports before canceling it.
Can I just replace POTS with VoIP?
Sometimes, but not automatically.
Standard VoIP may work well for ordinary business voice communications, but specialized equipment can have different connectivity, backup-power, signaling, monitoring, or regulatory requirements.
The appropriate replacement depends on what the line actually supports.
How Nxt_ can help
If you’re looking at your telecom bill and wondering why you’re still paying for phone numbers nobody recognizes, that’s a good place to start.
Nxt_ can help businesses review existing connectivity, identify legacy services, and determine what should be investigated before making changes. Learn more about our Houston IT support or contact Nxt_ to discuss an inventory.
From there, we can help evaluate modern connectivity and POTS replacement options based on the actual equipment, location, and business requirements rather than forcing every situation into the same product.
For Houston-area organizations, that can also become part of a broader technology review covering internet connectivity, backup connectivity, voice, networking, cloud services, and other infrastructure that may have accumulated across multiple providers over time.
Not sure what your analog lines are actually doing? Start with the bill. We’ll help you make sense of it before you change anything.