U.S. Cellular

I-95-ME-109-NB
 US 202 east / SR 11 east / SR 17 east / SR 100 east – Augusta, Airport
Augusta Kennebec ME

I-95-ME-109A-SB
 US 202 east / SR 11 east / SR 17 east / SR 100 east – Augusta, Airport
Augusta Kennebec ME

Brand: U.S. Cellular

United States Cellular Corporation (doing business as UScellular) is an American mobile network operator headquartered in Chicago, Illinois. Formed in 1983 as a subsidiary of Telephone and Data Systems Inc. (which owns an 84% stake), it is the fourth largest wireless carrier in the United States, with over 4.9 million customers in 426 markets in 23 states as of the second quarter of 2020.

Wikipedia entry