About CSC Corporate Domains
CSC Corporate Domains is the registrar arm of Corporation Service Company in the United States. Like other corporate registrars it manages portfolios for large organisations rather than selling to the public.
What the record looks like
A gTLD WHOIS answer carries the two "Registrar" lines below; RDAP carries the same facts as an entity with the role "registrar" and a public ID of type "IANA Registrar ID". The domain here is a reserved example; the registrar lines read "CSC Corporate Domains, Inc." and 299.
Domain Name: EXAMPLE.COM
Registrar: CSC Corporate Domains, Inc.
Registrar IANA ID: 299
Domain Status: clientTransferProhibited
RDAP: entity with role "registrar"
vcard fn: CSC Corporate Domains, Inc.
publicIds: [{ "type": "IANA Registrar ID", "identifier": "299" }]Country-code registries do not use IANA IDs and often print a shorter or local form of the registrar name, or a registry-specific handle. Some publish no registrar at all.