It says access to the mapping is required. Point 49. >a dynamic IP address registered by an online media services provider [...] constitutes personal data with

It says access to the mapping is required. Point 49. >a dynamic IP address registered by an online media services provider [...] constitutes personal data within the meaning of that provision, in relation to that provider, where the latter has the legal means which enable it to identify the data subject with additional data which the internet service provider has about that person.