I need to find some details on the IANA website. First, for the '.career Arabic' Internationalized Domain Name (IDN) table, what is its current version and which organization is responsible for its maintenance? Second, concerning the 'e164.arpa' second-level domain, what is its primary purpose and which RFC document defines its operational usage?
Navigate to iana.org. Locate and navigate to the 'Repository of IDN Practices' page. Find the entry for '.career Arabic' in the table. Extract the 'Version' and 'Responsible Party' for '.career Arabic'. Locate and navigate to the '.ARPA Zone Management' page. Find the 'e164.arpa' entry in the table of second-level domains. Extract the 'Usage / Reference' information, specifically the RFC number, for 'e164.arpa'. Synthesize the collected information into a concise answer.
State the version of the .career Arabic IDN table as 2.5. State the responsible party for the .career Arabic IDN table as Verisign Inc. Explain that 'e164.arpa' is used for mapping E.164 numbers to Internet URIs. State the RFC that defines 'e164.arpa' usage as RFC 6116.