...- U.S.-based mobile virtual network operator (MVNO) CCI Buyer Inc. (Consumer Cellular) plans to pay a $340 million dividend to its private-equity sponsor, GTCR LLC, using the proceeds from a tack-on $500 million senior secured first-lien term loan ($2.4 billion total). As part of the transaction, the company will pay down about $200 million of its perpetual preferred stock and extend the maturity of its revolving credit facility by one year to 2027. - We expect adjusted leverage to decline to about 6x in 2024 from pro forma last-12-months leverage of about 6.9x as of Sept. 30, 2023. We assume margin benefits from a one-time boost in 2024 when its T-Mobile contract winds down while costs under its agreement with AT&T remain fixed, with variable-cost terms starting in 2025 raising leverage to about 6.5x in 2025 but still within our 8x downgrade threshold for the rating. - We therefore affirmed our 'B-' issuer-credit rating on Consumer Cellular. - We also affirmed our 'B-' issue-level rating...