Here are the cities where you can get mobile 5G service from major carriers in the U.S.

Mobile 5G is coming to the United States, whether you're ready for it or not. In fact, for some of us, it's already here.

Unfortunately, due to the nature of the business, mobile 5G service is still hard to come by for many people in the States. The major service providers have only just started rolling out their 5G service in select areas, and even if you happen to live in one of those cities, most phones don't have 5G support built-in just yet.

Still, if you manage to get your hands on one of a device that can handle it, here are the places where you can theoretically try out ultra-fast mobile internet.

Verizon

Verizon has rolled out what it calls "Ultra-Wideband" 5G in parts of 18 cities, according to its website. These include:

• Atlanta, Georgia

• Boise, Idaho

• Boston, Massachusetts

• Chicago, Illinois

• Dallas, Texas

• Denver, Colorado

• Detroit, Michigan

• Houston, Texas

• Indianapolis, Indiana

• Minneapolis, Minnesota

• New York City

• Omaha, Nebraska

• Panama City

• Phoenix, Arizona

• Providence, Rhode Island

• Sioux Falls, South Dakota

• St. Paul, Minnesota

• Washington, D.C.

In addition, the same website claims another handful of cities will get 5G next, at an unspecified time:

• Cincinnati, Ohio

• Charlotte, North Carolina

• Cleveland, Ohio

• Columbus, Ohio

• Des Moines, Iowa

• Kansas City, Missouri

• Little Rock, Arkansas

• Memphis, Tennessee

• Salt Lake City, Utah

• San Diego, California

AT&T

AT&T has a high-frequency service called 5G+ that launched late last year. This is a faster mmWave 5G network with limited availability and even more limited use, but you can get it in these cities:

• Los Angeles, California

• San Jose, California

• San Francisco, California

• San Diego, California

• Jacksonville, Florida

• Orlando, Florida

• Atlanta, Georgia

• Indianapolis, Indiana

• Louisville, Kentucky

• New Orleans, Louisiana

• Charlotte, North Carolina

• Raleigh, North Carolina

• Oklahoma City, Oklahoma

• Nashville, Tennessee

• Austin, Texas

• Dallas, Texas

• Houston, Texas

• San Antonio, Texas

• Waco, Texas

Beyond that, AT&T has a lower-frequency 5G network for devices like the Samsung Galaxy Note 10+ 5G that will start rolling out at the end of 2019 and into early 2020. So far, these cities are confirmed to get support:

• Indianapolis, Indiana

• Pittsburgh, Pennsylvania

• Providence, Rhode Island

• Rochester, New York

• San Diego, California

• Boston, Massachusetts

• Las Vegas, Nevada

• Milwaukee, Wisconsin

• New York City

• San Francisco, California

• Birmingham, Alabama

• Bridgeport, Connecticut

• Buffalo, New York

• Louisville, Kentucky

• San Jose, California

Sprint

As for Sprint, the major carrier launched its 5G network over the summer in nine cities. It's a lower-band 2.5GHz 5G network that isn't as fast as something like Verizon's mmWave network, but it could be a bit more reliable.

Here are the nine cities with Sprint 5G support at the moment:

• Atlanta, Georgia

• Kansas City, Missouri

• Houston, Texas

• Dallas, Texas

• Los Angeles, California

• New York, New York

• Phoenix, Arizona

• Chicago, Illinois

Sprint claims it will be able to cover more areas of the country more quickly if its proposed merger with T-Mobile is approved. Speaking of which...

T-Mobile

T-Mobile finally rolled out its "nationwide" 5G network at the beginning of December. Since it's more of an actual, nationwide 5G network than the others on this list, it exists in too many towns and cities to list in a bullet-point fashion here.

You can check out T-Mobile's 5G coverage map right here. It's only on a 600MHz spectrum at the moment, so the speed increases may not be especially intense. But it's technically a 5G network, so it belongs here.