noun
mobile phone operator; cellular carrier
Refers to a company that provides mobile phone network services. Used in business and everyday contexts.
携帯電話会社を乗り換えると、料金が安くなることがある。
Switching mobile phone carriers can sometimes lower your bill.
A broader term for any telecommunications carrier, including internet and landline services, not limited to mobile.
Compound of 携帯電話 (mobile phone) and 会社 (company).