AT&T announced Thursday that it plans to launch mobile 5G service in 12 U.S. markets by the end of the year.

The move would make the telecom giant the first U.S. carrier to introduce next-generation mobile networks.

The company credited its involvement in establishing global 5G standards, which will enable companies to begin developing 5G products and allows AT&T to “bring 5G to market faster without compromising its long-term vision.”

“5G will change the way we live, work and enjoy entertainment,” Melissa Arnoldi, president of AT&T Technology and Operations, said in a statement. “We’re moving quickly to begin deploying mobile 5G this year and start unlocking the future of connectivity for consumers and businesses.”

The company did not disclose which areas would be the first to see 5G mobile service. AT&T previously conducted numerous fixed wireless 5G trials and said this week that it also plans to test 5G technology with a variety of businesses.