(DA No. 23-891). (Dkt No 23-319 RM-11966). WTB and OEA seek comment on mobile spectrum holdings policies, including AT&T's petition for rulemaking. Comments Due: 2023-10-23. Reply Comments Due: 2023-11-08. WTB OEA. Contact: Monica.DeLong@fcc.gov Judith.Dempsey@fcc.gov. Action by: Chief of the Wireless Telecommunications Bureau; Chief of the Office of Economics and Analytics.