The U.S. has spared no effort in pushing the development of Open RAN (Radio Access Network) technology through policies such as the agreement signed between the U.S. and Saudi Arabia and the research development funding allocated under the CHIPS and Science Act of 2022. However, currently only the new player Dish has deployed its 5G network based on Open RAN technology; the other three major telecoms have yet to deploy Open RAN technology in their commercial networks. After Verizon announced that it will adopt Open RAN sometime in 2023, Open RAN has once come under the spotlight in the U.S. telecom market.