Value,Description,Reference
internic,Internet Network Information Center,[RFC7970]
apnic,Asia Pacific Network Information Center,[RFC7970]
arin,American Registry for Internet Numbers,[RFC7970]
lacnic,Latin-American and Caribbean Internet Addresses Registry,[RFC7970]
ripe,Reseaux IP Europeens,[RFC7970]
afrinic,African Network Information Center,[RFC7970]
local,A database local to the CSIRT,[RFC7970]
ext-value,"A value used to indicate that this attribute is
        extended and the actual value is provided using the
        corresponding ext-* attribute.  See Section 5.1.1 of [RFC7970].",[RFC7970]