2010 Jan 15, 3:19"The .arpa domain is the “Address and Routing Parameter Area” domain and is designated to be used exclusively for Internet-infrastructure purposes. It is administered by the IANA in cooperation with
the Internet technical community under the guidance of the Internet Architecture Board. For the management guidelines and operational requirements of the .arpa domain, see RFC 3172."
technical arpa dns domain zone internet rfc reference iana
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