# Address book This is the readable view of the canonical records in [`data/entities.csv`](../data/entities.csv). | Directory | What it covers | |---|---| | [Governance, identifiers, and standards](governance-and-standards.md) | ICANN/IANA, open standards, number-resource coordination | | [Regional Internet Registries](regional-registries.md) | The five RIR service regions and public resource directories | | [Infrastructure and operations](infrastructure-and-operations.md) | DNS root, IXPs/peering, routing visibility, physical transport, operator communities | | [Security and resilience](security-and-resilience.md) | Incident-response directories and routing-security coordination | ## How to use it Start with the coordinating body or directory for the function you need. For example: - IP address or ASN registration → the appropriate RIR; - protocol specification → IETF Datatracker/RFC system; - interconnection discovery → PeeringDB, IXP member lists, or IX-F exports; - root-zone or protocol registry → IANA; - incident-response team discovery → FIRST or Trusted Introducer; - BGP visibility → Route Views or RIPE RIS; - submarine cable discovery → TeleGeography map, followed by operator/regulator verification.