5g being rolled out in 2020

United States
File:The FCC’s 5G FAST Plan.webm
Video produced by the FCC about 5G in the United States

The four major US carriers have announced plans to deploy 5G in 2019, beginning with major metropolitan areas. On July 31, Atlanta became the first city to have it available from all four carriers.

T-Mobile has launched nationwide 5G on December 2nd, 2019.

Carrier
City
AT&T Sprint T-Mobile Verizon
Atlanta Live Live Live Live
Austin Live — Live —
Birmingham Live — Live —
Boise — — Live Live
Boston Live — Live Live
Bridgeport Live — Live —
Buffalo Live — Live —
Charlotte Live — Live Planned
Chicago — Live Live Live
Cincinnati — — Live Planned
Cleveland — — Live Planned
Columbus — — Live Planned
Dallas–Fort Worth Live Live Live Live
Denver — — Live Live
Des Moines — — Live Planned
Detroit — — Live Live
Fort Myers — — Live —
Houston Live Live Live Live
Indianapolis Live — Live Live
Jacksonville Live — Live —
Kansas City — Live Live Planned
Las Vegas Live — Live —
Little Rock — — Live Planned
Los Angeles Live Live Live —
Louisville Live — Live —
Memphis — — Live Planned
Minneapolis–Saint Paul — — Live Live
Miami — — Live —
Milwaukee Live — Live —
Nashville Live — Live —
New Orleans Live — Live —
New York Live Live Live Live
Oklahoma City Live — Live —
Omaha — — Live Live
Orlando Live — — —
Panama City — — Live Live
Philadelphia — — Live —
Phoenix — Live Live Live
Pittsburgh Live — Live —
Providence Live — Live Live
Raleigh Live — Live —
Rochester, New York Live — Live --
Salt Lake City — — Live Planned
San Antonio Live — Live —
San Diego Live — Live Planned
San Francisco Live — — —
San Jose Live — — —
Sioux Falls — — Live Live
Tampa Live — — —
Waco Live — Live —
Washington, D.C. — Live Live Live

Operator Infrastructures
AT&T Nokia, Ericsson, and Samsung
Sprint Nokia, Ericsson, and Samsung
T-Mobile Nokia, Ericsson, and Samsung
Verizon Nokia, Ericsson, and Samsung

In August 2018, Senators John Thune and Brian Schatz introduced the Streamlining the Rapid Evolution and Modernization of Leading-edge Infrastructure Necessary to Enhance (STREAMLINE) Small Cell Deployment Act (S. 3157), also known as the Streamline Small Cell Deployment Act. The proposed legislation limits local government involvement in the location of 5G equipment.

Cities where 5G is already working.

https://en.wikipedia.org/wiki/5G