also: プロバイダー
noun
Internet service provider; ISP
Refers specifically to a company that provides Internet connectivity. In Japanese, it is almost exclusively used in this sense, unlike the broader English 'provider'.
from English provider
新しいプロバイダに乗り換えたら、通信速度が速くなった。
When I switched to a new ISP, the connection speed got faster.
プロバイダの契約内容を確認してください。
Please check the terms of your ISP contract.