Copper is going away, the FCC just made it faster, and the warning window for your business lines shrank to 90 days. Here's what's actually changing — and what to do before it reaches your buildings.
By Jonathan Eubanks · June 15, 2026 · 9 min read
⚡ The short version
The copper wires that have carried business phone calls for the better part of a century are being switched off. Not someday. Now.
AT&T has already stopped taking new orders for traditional copper lines across 18 states, and it's asked the FCC for permission to discontinue legacy service for tens of thousands of customers starting late this year, with the full copper network slated to be gone by 2029. On March 27, 2026, the FCC voted unanimously to make all of this happen faster — rolling back filing requirements and handing carriers blanket authority to retire copper and grandfather old services.
I've been reading telecom bills since 2003. The landscape has never sat still — carriers merge, products get sunset, pricing shifts under your feet. But it is moving faster right now than at any point I can remember. Here's the part that should get your attention if you run a multi-location business: the notice you'll get before your lines go dark just dropped from 180 days to 90. A wire center gets slated for retirement, and the first you hear about it is a letter giving you three months to move. Let me walk through what's actually changing, and what to do before it reaches your buildings.
First, let's be precise, because the headlines make this sound scarier and vaguer than it is. The thing being retired is the old copper-based phone network — what the industry calls POTS (plain old telephone service) and the legacy TDM switching behind it. It is not your fiber internet. It is not your hosted VoIP. If your phones already run over the internet, this story is mostly about the loose ends hanging off your buildings, not your main phone system.
And those loose ends are exactly the problem, because they're the lines nobody thinks about. The analog line behind the elevator. The fax line in the back office that three people still use. The alarm circuit. The fire panel line. The credit-card terminal at the counter that dials out. The "spare" copper line at a remote site that somebody installed years ago for a reason no one remembers. None of those show up in a conversation about your phone system, because nobody thinks of them as phones. The carrier does, though — and when the copper under that wire center retires, those are the lines that stop working.
Here are the dates that matter. AT&T began grandfathering copper service in October 2025, meaning no new orders. It has asked the FCC to discontinue legacy TDM voice for roughly 90,000 customers across portions of 18 states on or after November 15, 2026. Full copper retirement across its footprint is planned by 2029. Other carriers are on similar tracks. This is not a rumor or a "someday" — it's a published timeline that's already in motion.
Copper is the loudest change, but it's not the only one. Step back and look at the whole board. MPLS — the workhorse network technology a lot of multi-site companies still run between locations — is fading toward SD-WAN. Carriers are merging and reorganizing; the company you signed with five years ago often isn't the same company today, even if your contract is. New providers show up every quarter. Products get quietly sunset and replaced. Pricing for the same bandwidth drops, then the contract auto-renews at the old rate while nobody's watching.
None of these individually is a crisis. Together, they add up to a simple truth I keep coming back to: the telecom stack you signed off on 18 months ago is already out of date, and staying current isn't a project you finish — it's a job somebody has to keep doing. Companies without anyone tracking this will sign a contract today that punishes them in 18 months, or get caught flat-footed when a wire center retires under one of their sites. The copper sunset just put a deadline on the part of that drift that was easiest to ignore.
Back in March 2025, the FCC cut the required notice period for copper wire-center shutdowns from 180 days to 90. On paper that's a regulatory footnote. In practice, it's the difference between a planned migration and a fire drill.
For a single-location business, 90 days is tight but workable — one building, one set of lines, one decision-maker. For a multi-location company, 90 days is a scramble. Picture it: an analog line at each of eight sites, each potentially served by a different wire center on a different retirement schedule, and the discontinuation letter goes to the address of record — which is often the site itself, not headquarters. So the notice lands on a desk at the branch in the next county, gets set aside by someone who doesn't know what it means, and surfaces three weeks before the cutoff when the elevator phone or the fire line suddenly matters.
This is the same problem I write about constantly in a new costume: nobody owns the whole picture. When no single person can list every copper line across every location and what each one does, a 90-day notice isn't enough time — because half of it gets burned just figuring out the letter applies to you.
Quick win: This week, walk one building — just one — and make a list of every analog line in it. Check the elevator, the fire panel, the alarm, the fax, the back-office "spare," and any credit-card or point-of-sale line that dials out. For each one, write down what it does and what would break if it went dead tomorrow. You don't have to fix anything yet. That single list is the thing the carrier's 90-day letter assumes you already have — and almost nobody does.
If you'd rather not build that inventory blind, that's the first thing we do for every client, across every location, on one page. Because the carriers pay us, there's no advisory fee for that look. Ten minutes on the phone tells you whether you're exposed. Talk to the team if you want a second set of eyes on it.
The good news: every one of these lines has a replacement path, and you have more leverage now than you will after a shutoff letter forces your hand. Four moves, in order.
Inventory every copper line across every site. Not the bill total — the lines. Every site, every analog circuit, what it does, which carrier, when it renews. One page. This is the foundation, and it's the step most companies skip straight past on their way to panicking.
Sort each line by what it actually does, because they don't all migrate the same way. A fax line and a fire line are not the same problem. Life-safety lines — elevator emergency phones, fire alarm communicators — carry code requirements, and in many jurisdictions a failed elevator emergency phone means the elevator gets red-tagged out of service until it's fixed. Inspectors are already flagging buildings on aging copper. Those lines need a deliberate, code-compliant replacement — a managed POTS-replacement device or cellular solution that your alarm and elevator vendors will certify — not a last-minute guess. Your everyday fax and back-office lines, on the other hand, often just fold into your existing internet phone system and quietly save you money.
Migrate on your schedule, not the carrier's. This is the whole game. If you move these lines deliberately over the next several months, it's routine work. If you wait for the 90-day letter, you're paying rush pricing, taking whatever's available, and hoping the elevator passes its next inspection. The deadline is coming either way. The only question is whether you pick the date or the carrier picks it for you.
Use the moment to re-quote. You're already opening the hood. While you're in there, look at what every site is paying, what auto-renews in the next six months, and whether the market price for that bandwidth has dropped since you signed. A forced migration is a hassle. A planned one is a chance to fix the drift that's been quietly costing you for years.
Copper sunsetting isn't a catastrophe. The replacement technology is better, usually cheaper, and the migration is routine when you do it on your own terms. The catastrophe is only ever the surprise version — the elevator that fails inspection, the alarm that stops reporting, the credit-card terminal that goes dark on a Saturday, all because a 90-day letter landed on the wrong desk at the wrong site and nobody connected it to the line it was about.
The carriers are counting on that gap. Auto-renewal language and shrinking notice windows exist precisely because they know that at most multi-location companies, nobody is watching the map. That's the part you control. You can't stop copper from retiring. You can absolutely decide whether your business migrates on a calendar you set or a letter you didn't see coming.
So here's the question I'll leave you with: if a copper-shutoff notice for one of your sites landed today, would anyone in your company know which lines it affected — and what each one does? If you can't answer that, that's not a phone problem. It's an ownership problem. And it's a far cheaper one to fix in June than in a 90-day scramble.
— Jonathan
Jonathan founded Buckeye Telecom in 2003 after years in the Columbus telecom industry — first at 5-Star distributors learning the carrier side, then carrying his own quota in telecom sales. He still works directly with clients — backed by the Buckeye team.
Talk to the Buckeye team — the owner is involved in every engagement, and there’s no advisory fee.
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