noun
service area boundary
Technical computing term for the boundary or coverage area of a service, such as a network or cloud service region.
このクラウドサービスの提供区域は日本国内に限られています。
The service area boundary of this cloud service is limited to within Japan.
Compound of サービス (service) + 提供 (provision) + 区域 (area/zone). A straightforward technical term with no unusual historical derivation.