In OCPI it is advised to use Contract IDs and EVSE IDs according the so called “eMI3 format”. The provider and the operator name is important here, to target the right provider or operator, they need to be known upfront, at least between the cooperating parties.
Information about the syntax can be found in this document: Emobility ID format and syntax
General rules about the IDs can be found in this document: E-Mobility ID codes general rules
In several standards, an issuing authority is mentioned that will keep a central registry of known Providers and
Operators. Currently the most complete overview of the European ID Registration Offices (IDROs) can be found via: ID Registration Repository (IDRR) | Benelux-idro
Outside Europe the IDROs are limited and an overview is not available. For info how to setup an IDRO, you can contact the secretariat of the EVRoaming Foundation via: info@evroaming.org
