5G Home Internet Not Available at My Address: Why

The neighbor across the street has it. You typed the same street into the same box and got a page saying the service is not available at your address.

That is not a glitch in the form, and phoning to argue about it almost never moves anything. Fixed wireless — the 5G home internet sold by T-Mobile, Verizon and AT&T — puts two separate gates in front of you, and only one of them has anything to do with whether a usable signal reaches your house.

The second gate is the one nobody walks you through, since explaining it does not help sell a subscription.

The map models coverage; the tool is counting inventory

Federal coverage data for fixed wireless is not a survey. It is a simulation, run to parameters the FCC fixes. Under 47 CFR 1.7004(c)(1)(iv) — the text in the eCFR issue of 1 August 2026, pulled 23 August 2026 — a fixed wireless provider filing coverage maps has to model a cell edge probability of not less than 75 percent of receiving the maximum advertised speeds, a cell loading factor of not less than 50 percent, and receiver heights within a range of four to seven meters.

Read those as three assumptions about your house. Seventy-five percent is a probability, so one house in four inside a polygon can miss the advertised number and the filing is still correct. Fifty percent loading means the picture was drawn for a tower running at half its air-interface capacity, which describes Tuesday at 10 a.m. and not Sunday at nine. And the receiver in the model sits four to seven meters up; paragraph (c)(2)(iv) requires providers to report the height and power values used for customer premises equipment antennas within that same range. Your gateway is going to live on a windowsill at about a meter and a half, indoors, behind coated glass.

None of those three parameters is a subscriber count. The map carries no field for how many households a sector can still take. That question sits entirely with the carrier, which is why the gap between what the map claims and what anyone will sell you shows up here in its most confusing form.

A refusal that reverses itself, and a yes that can be taken back

AT&T writes the two-gate structure into its own terms. The Internet Air for Business disclaimers, effective 19 May 2026 and read 23 August 2026, say service areas "are determined by coverage and capacity availability on the local mobile network and may change from time to time." That is the business product rather than the residential one, and the consumer disclaimers sit behind a page that was not reachable on that date, so take it as the clearest published statement of the mechanism rather than as your own contract.

The same paragraph carries a sentence worth reading twice: "If your service is cancelled or terminated, you may not qualify to reactivate the service if your location is deemed no longer eligible." Cancelling is not reversible on your schedule. If the sector fills while you are gone, the door you walked out of is not there when you come back, which changes the arithmetic on treating fixed wireless as a seasonal or standby line.

T-Mobile puts the same volatility in gentler words on its home internet FAQ, read 23 August 2026: eligibility "is determined by the home service address," and the page grants in the next breath that the capacity behind that address expands and contracts as customers join. Verizon's 5G Home FAQ supplies the physical half — the service "may require a direct line of sight between our cell site and your home," which is "why some addresses on the same block may have coverage while others may not."

A decline is therefore a timestamp, not a verdict. It reports one sector on one afternoon, and both halves of that sentence can change without anyone writing to tell you.

Treat the return window as a measurement window

The expensive mistake here is a quiet one. The box arrives, someone sets it by the nearest window at two in the afternoon, runs a speed test over Wi-Fi, sees a number that looks fine, and the trial period expires without anyone testing the hours the line was bought for. Evening upstream is where fixed wireless fails, and the evening was never in that test.

Do it the other way round. Wire a laptop to the gateway, put the gateway where it will actually live, and take readings in four windows: mid-morning, inside your own meeting hours, between 8 and 9 p.m. on a weekday, and once on a weekend evening. Record download, upload, idle latency and latency while the link is loaded, because a video call dies on the last two long before the first one looks wrong. The repeatable method is the same one you would use to argue with a wireline provider later.

While the trial clock runs, open the gateway's own status page and write down the signal figures — band, RSRP, SINR — at each spot you try. Placement and height are the only levers you have on a marginal address, and moving the unit two rooms over is guesswork unless you can compare the before and after numbers.

Where your traffic sits when the tower gets busy

Every fixed wireless plan carries a priority position, and it is disclosed rather than hidden. What surprises people is where that position sits relative to the phone in their pocket.

T-Mobile's home internet network management page states that customers who exceed 1.2TB of data in the current billing cycle "are Internet Heavy Data Users who will be prioritized last on the network." Its consumer policy page says the Heavy Data User label "does not apply to customers on Go5G Next, Go5G Plus, and Magenta MAX plans," which carry no threshold at all. Both pages were read on 23 August 2026. A premium handset on that tower has no ceiling. The line running your household does.

Verizon's threshold is not even a fixed number. Its plan information page defines a Heavy Data User on 5G Home or LTE Home as a line whose monthly use exceeds "the average amount of data consumed by the top 5% of users on our network during the preceding six-month period (as of June 2026, 1.83 TB)," after which, in times of congestion, Verizon "may temporarily prioritize Heavy Data User's data behind other traffic for the remainder of the cycle." A ceiling recalculated from everyone else's behaviour cannot be planned against. It can only be watched.

Two things follow. Deprioritization is not throttling: Verizon's own text says that absent congestion, heavy users see "little, if any, effect." And T-Mobile concedes the geography of it, warning that in constrained locations heavy loading relative to available capacity happens more often than elsewhere. The policy bites hardest exactly where capacity was tight enough to make qualification a question in the first place.

Two pages from one company, two different dates

Here is a small thing that tells you how to file all of this. The 1.2TB threshold appears on both T-Mobile pages above, worded almost identically, and dated differently. The home internet page says "As of May 8, 2024." The consumer policy page says "As of January 18, 2024, new T-Mobile Home Internet customers." Same company, same number, two effective dates, both live on 23 August 2026.

Neither is necessarily wrong — they may describe different products, or different waves of customers. That is rather the point. A disclosure you want to argue from months later has to be the specific page governing the specific plan you bought, captured at the time you bought it. Save it as a PDF that shows the address bar and the day you pulled it, and do the same for the broadband label attached to the plan: under 47 CFR 8.1(a)(3) providers must publish label contents in a spreadsheet at a dedicated URL, and 8.1(a)(5) requires them to give an existing customer the archived label for their plan within thirty days of a request.

The service address is part of the product

Wireline service belongs to a building. Fixed wireless service belongs to a record in a carrier's eligibility system, and the difference shows the moment you move.

Verizon's FAQ answers it directly: using the equipment or service at another location without telling Verizon gets a flat no, and the service is "for use only at the qualified service address you gave us in your order." T-Mobile says the same of its Rely, Amplified and All-In plans, which are "eligible for use at only the approved home address and may be restricted away from the approved address"; Home Internet Lite lines activated starting 9 May 2024 carry that restriction too. A move there runs through a call to 1-855-545-5021 that updates the service address once availability is confirmed at the new one. AT&T reserves the right, in the business terms above, to shift an off-address user onto a different plan at that plan's price or to terminate the service, with notice first.

So the qualification question returns every time you move, and it can return a different answer. When the new address turns out to be the problem, the order to work through the alternatives matters more than which carrier's box you already own.

The address behind your address

One check belongs in the trial window and gets skipped almost universally, because nothing on the box mentions it. Fixed wireless gateways are commonly placed behind carrier-grade NAT, and none of the three carriers puts a plain yes or no about it on the page you buy the plan from. Behind that arrangement your gateway holds no public IPv4 address of its own. Inbound connections stop working: port forwarding, a VPN server at home, a camera you reach from outside, occasionally a corporate client that expects a stable address.

You can settle it in a minute rather than take a sales chat's word for it. Open the gateway's status page and read the WAN address, then compare it with the public address a lookup service reports for you. If the two differ, and the gateway's address falls inside 100.64.0.0/10 — the shared address space RFC 6598 reserved in 2012 for precisely this arrangement — you are behind a carrier NAT. Outbound browsing and video calls will not care. Anything that needs the internet to start the conversation will.

Ask in writing whether a public or static address is available on the plan you are considering, and keep the reply.

What a documented no is worth

A refusal typed into a chat window and forgotten is worth nothing. The same refusal with a date on it is an asset, and fixed wireless produces the most useful kind, because it comes from a company that has already told the federal map it can serve the area around you.

Capture three things each time a tool turns you down: the exact address string you entered, the exact wording that came back, and a screenshot showing the URL and the date. The wording carries more weight than it looks. "Not available in your area" is a coverage claim. "At capacity," or an offer to join a waitlist, is an admission that the radio reaches you and the inventory does not — a different sentence entirely when you are documenting that no serviceable option exists at your address, for a map challenge, a state line extension application, or a landlord insisting the building is covered.

Keep the three of them in one folder named for the address rather than for the carrier, since the address is the unit every one of these decisions gets filed under. Then put the next round of checks on a calendar. Sectors fill, and sectors get split when a carrier adds capacity, and the sign-up page is the only place either event is ever announced.