Ex Parte VIA ELECTRONIC FILING January 14, 2021 Ms. Marlene H. Dortch Secretary Federal Communications Commission 45 L Street NE Washington, DC 20554 Re: Incumbent Earth Stations in the 3.7-4.2 GHz Band, IB Docket No. 20-205 Dear Ms. Dortch: RSM US LLP ( RSM ), acting as the Relocation Coordinator, continues to work closely with the C-band satellite operators -- Eutelsat, Intelsat, SES, StarOne and Telesat -- to ensure all incumbent earth stations are properly migrated within the relocation deadlines defined for the 3.7-4.2 GHz band transition. The Relocation Coordinator is responsible for reaching out to earth station operators, with antennas for which none of the C- band satellite operators has taken responsibility for implementing the transition. Consequently, the Relocation Coordinator conducted outreach on the earth station records found in the FCC Incumbent Earth Station List1 and not included in a Satellite Operator Transition Plan. Similarly, the satellite operators completed significant outreach to incumbent earth stations to not only develop but maintain their Transition Plans. Together, the Relocation Coordinator and satellite operators manage a process for sharing outreach results and updating earth station records as it relates to inclusion in Transition Plans. The Relocation Coordinator files this letter to provide the International Bureau with joint findings from the satellite operator and Relocation Coordinator outreach efforts. The outreach included phone, email, and certified letters to the registered points of contact listed in the International Bureau Filing System (IBFS) and/or additional contacts obtained from industry partners. A number of earth station operators were reached and provided clarifying details to inform the transition activities and subsequently the Satellite Operator Transition Plans. One outcome of this outreach by the satellite operators and Relocation Coordinator was the identification by various earth station operators of inactive earth stations that are no longer receiving service from a C-band satellite. These reportedly inactive sites are listed in Attachment A to this filing. Despite the extensive outreach described above, the satellite operators and Relocation Coordinator were unable to reach certain of the incumbent earth station operators regarding specific earth stations. A comprehensive list of the  unable to reach earth stations is presented in Attachment B to this filing. As of January 13, 2021, the Relocation Coordinator submits these collective outreach findings to the FCC for further consideration as it relates to the C-band transition. The Relocation Coordinator looks forward to continued coordination with the incumbent earth station operators to ensure all earth stations are properly transitioned. Please contact the undersigned with any questions. Respectfully submitted, /s/ Sanga Chandel RSM US LLP 1 International Bureau Releases Updated List of Incumbent Earth Stations in the 3.7-4.2 GHz Band in the Contiguous United States, Public Notice, DA 20-1424, IB Docket No. 20-205 (rel. Nov. 30, 2020), available at https://www.fcc.gov/document/erratum-november-30- 2020-incumbent-earth-station-list-37-ghz. RSM US LLP is the U.S. member firm of RSM International global network of Independent audit, tax, and consulting firms. Visit rsmus.com/aboutus for more information regarding RSM US LLP and RSM international.