Translation guide
In Japanese, 'Internet service provider' is commonly referred to by the borrowed term インターネットサービスプロバイダー or its abbreviation プロバイダー. The full term is understood but the abbreviation is far more common in everyday speech. There is also a more formal term インターネット接続事業者 used in business or technical contexts.
The learner wants to refer to the company that provides internet access.
This is the most common and natural way to say 'Internet service provider' in Japanese. It is a loanword abbreviation and is used in both casual and formal settings.
I switched to a new Internet service provider.
My ISP's fees went up.
The full loanword term. It is understood but less commonly used than the abbreviation. It may appear in formal documents or when clarity is needed.
This Internet service provider has good support.
A formal Japanese term meaning 'Internet connection service provider'. Used in legal, technical, or business contexts. Not common in everyday conversation.
Internet service providers must notify the Ministry of Internal Affairs and Communications.