The Federal Communications Commission (FCC) announced that it is going to investigate if Chinese telecommunications equipment and service providers which are considered national security threats are still operating in the US. Some companies on a FCC list of national security risks are believed to still be operating in the U.S. despite their presence on the list. The FCC has sent out letters of inquiry and at least one subpoena to the companies on the list and has begun an investigation on each of them. 

Read more: https://www.darkreading.com/cybersecurity-operations/fcc-investigates-chinese-telecom-providers-evading-operations-ban