It's all in the detailed transition plans on file with the FCC. The new C-band satellites are headed to...
89 °W
91 °W
95 °W
103 °W
103 °W (as a full-time spare)
113 °W
121 °W
127 °W
129 °W
131 °W
133 °W
135 °W
Additionally, Galaxy 30, ordered back in 2018, is headed for 125 °W after launch...