How to Switch to T-Mobile Fiber: Installation, Setup, and What to Expect

Switching to T-Mobile Fiber is easy. Simply choose the best plan, schedule the installation, and then cancel the previous service.

Eager to sign up for T-Mobile Fiber? Read on to find out how to make the switch and what to expect from T-Mobile after ordering service.

How to switch to T-Mobile Fiber 

New customers curious about T-Mobile Fiber—who are not willing to supply a street address— can use a zip check tool to determine availability.

For example, enter a zip code below to see if T-Mobile Fiber is available in the area:

If T-Mobile Fiber isn’t available, the tool provides a list of other internet providers that report service in that zip code regardless of the connection type.

However, if T-Mobile Fiber shows up on the zip check list, potential new customers can browse T-Mobile’s fiber internet plans to see what works best for their connection needs.

A street address is required to get service 

Once potential customers settle on a plan, the next step is to enter a street address to verify that service is indeed available and to see the actual pricing and Broadband Facts.

From there, T-Mobile requires customers to create an account or log in to an existing one to order new fiber internet service. After that, simply select the plan, choose to enable Fiber AutoPay, set up the payment method, and schedule a date for installation.

How to switch without losing internet service

The best way to not lose internet service when transitioning from an existing service to T-Mobile Fiber is to have a slight overlap. Here’s a brief rundown:

Step 1: Order T-Mobile Fiber service and schedule an install appointment

Step 2: On the T-Mobile Fiber site, review the installation video and FAQ’s to prepare for your installation

Step 3: Verify that T-Mobile Fiber internet is up and running

Step 4: Cancel the previous internet service

Step 5: Return the previous internet provider’s equipment

Once the T-Mobile Fiber service is active, simply unplug the previous service’s equipment and then call to cancel.

What to expect from a T-Mobile Fiber installation

T-Mobile Fiber expanded its coverage in 2025 through a Joint Venture with Lumos and Metronet and continues to expand into new markets.

Multiple fiber services can exist in an area

Multiple fiber internet services can exist on the same street. Typically, internet providers follow the local infrastructure: aerial if power and telephone lines connect to utility poles; buried if said lines are underground.

With aerial installs, thick fiber lines reinforced with fiberglass or steel connect to utility poles. While highly common, internet providers must lease the space on these poles from the utility owners. In some cases, poles must be upgraded to accommodate additional internet lines, which can be costly and time-consuming for the provider needing the space.

To save money, many fiber internet providers like T-Mobile bury fiber lines. T-Mobile’s fiber internet installer, Metronet, digs a hole in the ground and then sends a burrowing device in both directions to create tunnels for the hard conduits containing the fiber lines. However, there must be ample room to install the conduits in city easements, so they don’t interfere with buried public utilities, like water, sewer, and electricity.

In either case, a single fiber internet provider like T-Mobile Fiber must install its own wired network to provide service. Most fiber internet providers do not lease their physical lines to direct competitors.

A drop cable must connect the premises to the street-level network

Whether it’s aerial or buried, any internet connection requires a drop cable to connect a home to the street-level network. All utility lines must be marked before installing a buried cable, so the bury crew doesn’t dig into a sewer or electric line, for example. The city can take up to three days to mark buried utility lines.

Once the drop cable is installed, it terminates at a Network Interface Device (NID) box mounted next to the power meter. The drop cable is looped multiple times inside the box and then fused with another fiber line, the premise cable (or transition fiber cable), that goes into the home.

Fiber internet does not use a modem

Inside, the premise cable connects to an Optical Network Terminal (ONT)—though many providers simply call it a “fiber modem” to keep things easy. Unlike a cable modem, which translates analog radio frequency (RF) signals, an ONT translates light signals into data your home network can use.

Typically, the ONT is mounted on the wall, given that fiber is easily damaged. A separate (and optional) router or mesh system supplied by T-Mobile connects to the ONT using Ethernet to create the home network.

In some cases, a fiber internet provider may install a gateway, which combines the ONT and the router in one unit.

Be sure to pick the best entry point

Although the drop line typically connects to the house next to the power meter, where the premise cable enters the home is completely at the homeowner’s discretion.

For example, the NID box may be mounted outside a bedroom—which isn’t the best entry point for any internet connection. Ideally, the premise cable should enter at a central location in the home so that the router can distribute Wi-Fi evenly.

For homes with crawl space and basements, it’s easy to install the premise cable and ONT in a central location—drill up through the floor for the entry point. Homes on slabs require the installer to string and mount the premise cable along the exterior and then drill a hole through the wall for the entry point.

A bury crew typically buries the drop cable

The T-Mobile technician installing the service simply connects the home to the street-side fiber network. A bury crew comes back within 14 days to bury the fiber, after 811 Call Before You Dig utilities have been marked.

However, be extremely careful about digging in the future. The drop cable is not enclosed in a hard conduit like the lines buried in the easement. A good plunge into the earth with a shovel will easily sever the line, and fiber is far harder to repair than coax.

Self-install is typically not an option

Again, new fiber service requires a new fiber installation—you can’t get T-Mobile Fiber using existing internet providers’ equipment. This is why T-Mobile provides the router and other equipment along w/the installation at no extra cost. For T-Mobile Fiber, the self-install option is available if:

• The home is prewired for Lumos
• The home is prewired for Metronet
• The home is prewired for T-Mobile Fiber

More about T-Mobile Fiber internet plans

Currently, T-Mobile Fiber provides symmetrical speeds of up to 5,000Mbps, meaning the upload speed mirrors the download speed. All four plans include installation and a Wi-Fi router. However, the Fiber 1 Gig, 2 Gig, and 5 Gig plans add a mesh extender at no additional cost (if needed). There are no data caps and no annual contracts.

Other factors to consider when choosing T-Mobile Fiber include T-Mobile Tuesdays, a perks program exclusive to T-Mobile customers that offers savings, free items, and more each week. Customers also get a discount on internet each month if they have an eligible wireless phone plan through T-Mobile.

Final call

T-Mobile Fiber Home Internet service is relatively new compared to AT&T Fiber, Verizon Fios, and gFiber. In most cases, new customers need the service installed unless their home is pre-wired for Lumos or Metronet fiber internet.

Installation takes roughly two hours to complete, from connecting the drop cable to the street-side network to powering up the fiber ONT inside the home for the first time. Installation also requires up to an additional three days for the city to mark utility lines, and up to 14 days for the fiber bury crew to bury the drop cable.

The home network setup isn’t quite as time-consuming. The installer can do this if customers opt to use the included Wi-Fi router and mesh extender (on select plans).

Overall, T-Mobile Fiber is an excellent choice. It scored second place for best overall provider in 2026, and landed the highest speed average in the nation.

FAQ about switching to T-Mobile Fiber