Application Identifiers 8017 and 8018 indicate a Global Service Relation Number (GSRN). The GSRN is used to identify either the recipient or the individual service provider in the context of a service relationship. In order to identify both roles in a service relationship (recipient and provider), two GSRN AIs are available. The AIs allow the service provider to store data relating to services for the recipient and the individual provider.
The GS1 Business Prefix is assigned by GS1 member organizations to the company that assigns the GSRN, i.e. the company that provides a service. This makes the GSRN numbers unique worldwide.
The structure and content of the reference for the service is determined by the owner of the GS1 company prefix.
The 18th digit is a check digit.
GSRN - Provider (AI 8017) identifies the relationship between an organisation providing services and the service provider:
GSRN - Receiver (AI 8018) identifies the relationship between an organisation providing services and the service provider:
The electricity supply sector and the natural gas sector in Denmark, among others, have decided to use AI 8018 for identification of measurement points.
Example of Measurement Point Identification:
57 = GS1 Denmark
57 13131 = Danish electricity supply sector (for measuring point identification)
57 13131 123 = Danish network services (company prefix)
57 13131 123 1234567 = A specific measuring point identified by a Danish network operator
57 13131 123 1234567 K = Global and unique identification of a measurement point assigned by a Danish network operator — and validated with a technical control digit (modulus 10).